soy protein isolate is known to be a good source of nutrition for the body. What are the advantages of soybean protein isolate? What does the future hold for SPI?
l What is soy protein isolate
l What are the benefits of soy protein isolate
l What is the future research direction of soy protein isolate
Soy protein powder is a nearly purified protein obtained from soybeans extracted from soybeans through a series of processing steps. soy protein isolate contains eight essential amino acids, which are similar to meat, fish, eggs, and milk, and belong to full-price protein.
After refined processing, soybean protein powder has high nutritional value, but the uses are different. Generally speaking, the molecular weight of soybean protein is relatively large, the digestion process is slightly more complicated, and it is more suitable for ordinary people to supplement nutrition; while the molecular weight of whey protein is relatively small, which is more suitable for the elderly, children and people recovering from illness.
Since the natural soybean protein isolate functional properties are not prominent, it is difficult to meet the different requirements of protein functional properties in food systems. To this end, some methods are needed to improve the functional properties of soybean protein isolate, so that it can be used in a variety of food systems. The modification of SPI is to essentially change the functional properties of soybean protein isolate through physical, chemical, enzymatic or genetic engineering methods, so as to achieve the required quality characteristics of food and expand the application scope of soybean protein isolate in the field of food. The hydrolysate prepared by enzymatic modification of SPI not only has improved functional properties, but also has improved nutritional value. Because of its more obvious advantages, enzymatic modification is considered to be a potential modification method and has become a research hotspot.
If you are looking for a good quality and reasonable price of soybean protein isolate products,Xinrui Group can provide you with the best
Guanxian Xinrui Group is located in Guanxian Industrial Zone, founded in 2003, covers an area of more than 700 fields, with a total assets of 1.3 billion yuan, more than 1,000 employees. Based on the strategy of comprehensive utilization of resources, energy saving and emission reduction, and environmental protection, the overall industrial layout of the company has been developing for more than ten years, has developed into a scientific and technological research and development, intensive processing of agricultural products, import and export trade as one of the provincial key leading enterprises in agricultural industrialization. The way of zero-emission circular economy development from wheat and soybean primary processing, intensive processing, sewage treatment, reclaimed water reuse to sludge production of organic fertilizer for soil improvement and rehabilitation has been preliminarily realized. The company's brand products sell well around more than 20 provinces and cities, and exported to Southeast Asia, South, the Middle East, Norway, Russia and more than 40 countries and regions, product quality excellence, well received by customers at home and abroad. Has been identified by the Shandong provincial government as "Provincial-level key, leading enterprises in agricultural industrialization in Shandong province”, and the top 10 grain and oil industrial park.
The company at this stage vigorously develops wheat, soybean two major circular economy industrial chains.
The group began to develop 300,000 tons of wheat processing industry in 2007. The industry chain is to give priority to extracting high value-added refined flour from wheat. Vital Wheat gluten and superior starch were extracted from secondary flour with lower added value by downstream workshop, (Vital Wheat Gluten is used in high-gluten flour compounding, vegetarian food processing, and superior starch is used in the processing of Vermicelli, cold powder and other products.) The starch pulp composed of residual secondary starch and Pentosan was used to extract food-grade alcohol and medical alcohol through saccharification and fermentation in the production line of alcohol.
On the basis of summarizing the successful experience of wheat industry chain, the company developed 180,000 tons of soybean deep processing industry chain in 2015. Non-GMO soybean oil and food-grade soybean meal were produced from non-GMO soybean. Soybean meal can be used in food processing industry such as 1,000-page Bean Curd, meatball, ham, chafing dish and so on, it can be used in industries such as ketchup and dietary supplement.
The high concentration organic wastewater from the production of wheat and soybean industry chain was transported to the wastewater treatment plant. The remaining high-concentration organic wastewater is converted into biogas by anaerobic fermentation, and the biogas is purified and desulphurized, and then used in power generation or steam supply industry chain. After anaerobic treatment of wastewater by aerobic treatment and then advanced treatment to achieve the recycling water standard as heat and power co-generation boiler make-up water, industrial chain recycling water. The sludge from sewage treatment was fermented at high temperature after dehydration and processed into organic fertilizer, which was used to improve the soil remediation and improve the yield and quality of crops. The wheat and soybean produced by the base are used as raw materials in the industrial chain, thus realizing the development of closed-cycle economy from wheat and soybean planting, intensive processing, sewage treatment to soil improvement and rehabilitation of the planting base.
The 2021 Company actively adapts to the new situation, develops new forms of business, relies on the national rural revitalization industrial policy, takes the industrial prosperity as the lead, encircles the agricultural circular economy chain to extend the strong chain, raises the file to upgrade, an investment of 220 million yuan will be made to build a new project for intensive processing of highly efficient circular agricultural products. The first phase of the project started construction in February of 21, and the trial operation was realized at the end of December. By means of upgrading and building new production line, the project improves the original gluten production line, three new wheat gluten production lines, two wheat starch production lines, sludge and production waste material conversion of organic fertilizer production lines, the project to low value-added secondary flour as raw materials, to build digital, intelligent chemical plants, reduce labor by 40% and energy consumption by 15% , and realize on-line quality real-time monitoring, standardized production, greatly improve product quality, to meet the differentiated and specific needs of different customers, at the same time into the terminal market, the product directly to the dinner table. By upgrading the advanced treatment process of wastewater to further improve the utilization rate of water resources; by reusing sludge and production waste into organic fertilizer back to the field, raw materials are all eaten and squeezed, leaving no waste, finally achieve the whole industry chain of green closed-loop management.
The company’s main products are Vital Wheat Gluten, wheat starch, food-grade alcohol, non-GMO soybean oil, soy protein isolate, soybean dietary fiber, etc. , among them, Vital Wheat Gluten, soy protein isolate and soybean dietary fiber products are exported to more than 40 countries and regions, and are the key export enterprises in Liaocheng (Guanxian Ruichang Trading Co. , Ltd.) . With the continuous development and growth of the company, the management system has been gradually internationalized, certification through the most stringent food quality and safety system, such as BRC, HACCP, ISO 9000 & 14000, HALAL, KOSHER and so on. In order to open up the market and stable market, we actively participate in various industry exhibitions and seminars at home and abroad, and achieved good results.
The company insists the concept of“Integrity”, “Competition”, “Responsibility” and“Innovation” and the core values, and Shandong Liaocheng University‘s Dongchang College, Institute of Agricultural Product Processing, Chinese Academy of Agricultural Sciences and other institutions of high-standard learning, and actively recruit external professional engineers, and constantly develop high-tech, distinctive and competitive products. It is implementing projects such as wheat silk protein, soybean protein concentrate, anhydrous ethanol, high-temperature fermentation of sludge organic fertilizer, high-efficiency wastewater reuse, etc. . At the same time, the company continues to upgrade through technology, optimize existing projects, and improve the management level, product quality to obtain continuous recognition and support of customers.
Looking forward to the future, with the continuous care of government departments at all levels, the group’s chairman, General Manager and colleagues in the strong cooperation, the company has always insisted on standardized management, stable development, and seek opportunities in stability, to seek development in reform, to insist on development and management as an important task, to emphasize the quality of economic operation, to make full use of the company's overall advantages, to actively adjust business strategies, and to strengthen the control of business risks, following the development path of scientific and technological innovation and constantly exploring new products, adhering to the policy of independent development and co-existence of industry, university and research, and planning and layout in accordance with industry standards and requirements, to condense the technology target, improve the innovation ability and train the high-quality scientific research personnel, to realize the industrialization of science and technology, to develop more high-tech products to meet the market demand, to produce the generation, to reserve the generation, to develop a new generation of plant protein extraction and application enterprises with sustainable and innovative development, to promote scientific and technological progress in the industry and strive to be a leader in the industry, we are committed to making Xinrui group a leading plant protein production base in China.
The new generation of veggie burgers aims to replace the beefy original with fake meat or fresher vegetables. To find out how well they do, we ran a blind tasting of six top contenders. By Julia Moskin.
In just two years, food technology has moved consumers from browsing for wan “veggie patties” in the frozen aisle to selecting fresh “plant-based burgers” sold next to the ground beef.
Behind the scenes at the supermarket, giant battles are being waged: Meat producers are suing to have the words “meat” and “burger” restricted to their own products. Makers of meat alternatives like Beyond Meat and Impossible Foods are vying to capture the global fast-food market, as big players like Tyson and Perdue join the fray. Environmental and food scientists are insisting that we eat more plants and less processed food. Many vegetarians and vegans say the goal is to break the habit of eating meat, not feed it with surrogates.
“I would still prefer to eat something that’s not lab-grown,” said Isa Chandra Moskowitz, the chef at the vegan restaurant Modern Love in Omaha, where her own burger is the most popular dish on the menu. “But it’s better for people and for the planet to eat one of those burgers instead of meat every day, if that’s what they are going to do anyway.”
The new refrigerator-case “meat” products already comprise one of the fastest-growing segments of the food industry.
Some are proudly high-tech, assembled from an array of starches, fats, salts, sweeteners and synthetic umami-rich proteins. They are made possible by new technologies that, for example, whip coconut oil and cocoa butter into tiny globules of white fat that give the Beyond Burger the marbled appearance of ground beef.
Others are resolutely simple, based on whole grains and vegetables, and reverse-engineered with ingredients like yeast extract and barley malt to be crustier, browner and juicier than their frozen veggie-burger predecessors. (Some consumers are turning away from those familiar products, not only because of the taste, but because they are most often made with highly processed ingredients.)
But how do all the newcomers perform at the table?
The Times restaurant critic Pete Wells, our cooking columnist Melissa Clark and I lined up both kinds of new vegan burgers for a blind tasting of six national brands. Though many people have already tasted these burgers in restaurants, we wanted to replicate the experience of a home cook. (To that end, Melissa and I roped in our daughters: my 12-year-old vegetarian and her 11-year-old burger aficionado.)
Each burger was seared with a teaspoon of canola oil in a hot skillet, and served in a potato bun. We first tasted them plain, then loaded with our favorites among the classic toppings: ketchup, mustard, mayonnaise, pickles and American cheese. Here are the results, on a rating scale of one to five stars.
1. Impossible Burger
Maker Impossible Foods, Redwood City, Calif.
Slogan “Made From Plants For People Who Love Meat”
Selling points Vegan, gluten-free.
Price $8.99 for a 12-ounce package.
Tasting notes “The most like a beef burger by far,” was my first scribbled note. Everyone liked its crisp edges, and Pete noted its “brawny flavor.” My daughter was convinced it was a real ground beef patty, slipped in to confuse us. The only one of the six contenders that includes genetically modified ingredients, the Impossible Burger contains a compound (soy leghemoglobin) created and manufactured by the company from plant hemoglobins; it quite successfully replicates the “bloody” look and taste of a rare burger. Melissa deemed it “charred in a good way,” but, like most plant-based burgers, it became rather dried out before we finished eating.
Ingredients: Water, soy protein concentrate, coconut oil, sunflower oil, natural flavors, 2 percent or less of: potato protein, methylcellulose, yeast extract, cultured dextrose, food starch-modified, soy leghemoglobin, salt, soy protein isolate, mixed tocopherols (vitamin E), zinc gluconate, thiamine hydrochloride (vitamin B1), sodium ascorbate (vitamin C), niacin, pyridoxine hydrochloride (vitamin B6), riboflavin (vitamin B2), vitamin B12.
2. Beyond Burger
Maker Beyond Meat, El Segundo, Calif.
Slogan “Go Beyond”
Selling points Vegan, gluten-free, soy-free, non-G.M.O.
Price $5.99 for two four-ounce patties.
Tasting notes The Beyond Burger was “juicy with a convincing texture,” per Melissa, who also commended its “roundness, with lots of umami.” Her daughter identified a faint but pleasing smoky flavor, reminiscent of barbecue-flavored potato chips. I liked its texture: crumbly but not dry, as a burger should be. This burger was the most visually similar to one made of ground beef, evenly marbled with white fat (made from coconut oil and cocoa butter) and oozing a bit of red juice, from beets. Over all, Pete said, a “real beefy” experience.
Ingredients: Water, pea protein isolate, expeller-pressed canola oil, refined coconut oil, rice protein, natural flavors, cocoa butter, mung bean protein, methylcellulose, potato starch, apple extract, salt, potassium chloride, vinegar, lemon juice concentrate, sunflower lecithin, pomegranate fruit powder, beet juice extract (for color).
3. Lightlife Burger
Maker Lightlife/Greenleaf Foods, Toronto
Slogan “Food That Shines”
Selling points Vegan, gluten-free, soy-free, non-G.M.O.
Price $5.99 for two four-ounce patties.
Tasting notes “Warm and spicy” with a “crisp exterior” according to Melissa, the Lightlife burger is a new offering from a company that has been making burgers and other meat substitutes from tempeh (a fermented soy product with a sturdier texture than tofu) for decades. That’s probably why it nailed the “firm and chewy texture” that I found a little bready, but “not worse than most fast-food burgers.” “Pretty good when loaded up” was Pete’s final verdict.
Ingredients: Water, pea protein, expeller-pressed canola oil, modified cornstarch, modified cellulose, yeast extract, virgin coconut oil, sea salt, natural flavor, beet powder (for color), ascorbic acid (to promote color retention), onion extract, onion powder, garlic powder.
4. Uncut Burger
Maker Before the Butcher, San Diego
Slogan “Meaty but Meatless”
Selling points Vegan, gluten-free, non-G.M.O.
Price $5.49 for two four-ounce patties, available later this year.
Tasting notes The Uncut Burger, so named by the manufacturer to imply the opposite of a cut of meat, actually rated among the meatiest of the bunch. I was impressed by its slightly chunky texture, “like good coarse-ground beef,” but Melissa felt it made the burger fall apart “like wet cardboard.” The taste seemed “bacony” to Pete, perhaps because of the “grill flavor” and “smoke flavor” listed in the formula. (To food manufacturers, they are not quite the same thing: one is intended to taste of charring, the other of wood smoke.)
Ingredients: Water, soy protein concentrate, expeller-pressed canola oil, refined coconut oil, isolated soy protein, methylcellulose, yeast extract (yeast extract, salt, natural flavor), caramel color, natural flavor (yeast extract, maltodextrin, salt, natural flavors, medium chain triglycerides, acetic acid, grill flavor [from sunflower oil], smoke flavor), beet juice powder (maltodextrin, beet juice extract, citric acid), natural red color (glycerin, beet juice, annatto), citric acid.
Maker Field Roast, Seattle
Slogan “Plant-Based Artisanal Meats”
Selling points Vegan, soy-free, non-G.M.O.
Price About $6 for four 3.25-ounce patties.
Tasting notes Not much like meat, but still “much better than the classic” frozen vegetarian patties, to my mind, and the consensus choice for a good vegetable burger (rather than a meat replica). Tasters liked its “vegetal” notes, a reflection of the onions, celery and three different forms of mushroom — fresh, dried and powdered — on the ingredients list. There was some crispness to like in the crust, according to Pete, but the bready interior (it contains gluten) was not popular. “Maybe this burger would do better without a bun?” he asked.
Ingredients: Vital wheat gluten, filtered water, organic expeller-pressed palm fruit oil, barley, garlic, expeller-pressed safflower oil, onions, tomato paste, celery, carrots, naturally flavored yeast extract, onion powder, mushrooms, barley malt, sea salt, spices, carrageenan (Irish moss sea vegetable extract), celery seed, balsamic vinegar, black pepper, shiitake mushrooms, porcini mushroom powder, yellow pea flour.
6. Sweet Earth Fresh Veggie Burger
Maker Sweet Earth Foods, Moss Landing, Calif.
Slogan “Exotic by Nature, Conscious by Choice”
Selling points Vegan, soy-free, non-G.M.O.
Price About $4.25 for two four-ounce patties.
Tasting notes This burger is sold only in flavors; I chose Mediterranean as the most neutral. Tasters liked the familiar profile of what Melissa declared “the burger for people who love falafel,” made mostly from chickpeas and bulked out with mushrooms and gluten. (Called “vital wheat gluten” on ingredient lists, it is a concentrated formulation of wheat gluten, commonly added to bread to make it lighter and chewier, and the main ingredient in seitan.) The burger wasn’t meaty, but had “nutty, toasted grain” notes that I liked from brown rice, and whiffs of spices like cumin and ginger. This burger is a longtime market leader, and Sweet Earth was recently acquired by Nestlé USA on the strength of it; the company is now introducing a new plant-meat contender called the Awesome Burger.
Ingredients: Garbanzo beans, mushroom, vital wheat gluten, green peas, kale, water, bulgur wheat, barley, bell peppers, carrot, quinoa, extra-virgin olive oil, red onion, celery, flax seed, cilantro, garlic, nutritional yeast, granulated garlic, sea salt, ginger, granulated onion, lime juice concentrate, cumin, canola oil, oregano.
hydrolyzed wheat protein is a nutrient that is often added to foods. What is hydrolyzed wheat protein used for? What are the characteristics of hydrolyzed wheat protein?
l What is vital wheat gluten
l What are the characteristics of hydrolyzed wheat protein
l What is hydrolyzed wheat protein used for
What is vital wheat gluten
When the heat dough is kneaded and washed in water, part of its starch granules and bran particles are separated from the dough and become suspended, the other part is dissolved in water, and the remaining part is a lumpy rubber-like substance called gluten. Unlike other proteins, wheat gluten is less sensitive to heat and needs to be heated to about 80°C to gel. This shows that most of the molecules in the gluten are S-S cross-links, that is, the gluten protein is composed of a firm tertiary or quaternary structure. Therefore, if the S-S cross-links of gluten are cut with a reducing agent, its thermal sensitivity is significantly improved.
What are the characteristics of hydrolyzed wheat protein
1. Gliadin has ductility, glutenin has elasticity, and can form a network structure with water, so it has excellent viscoelasticity, extensibility, water absorption, liposuction and emulsification, film forming characteristics and light mellow or slightly grainy flavor. and other unique physical properties.
2. The gliadin molecule in wheat protein is spherical, with a relatively small molecular weight (25,000-100,000), with extensibility, but small elasticity; glutenin molecules are fibrous, with a relatively large molecular weight (above 100,000), with elasticity , but the extension is small. The combined action of these two makes wheat protein a unique viscoelasticity that other plant proteins do not have.
What is hydrolyzed wheat protein used for
1. Some of the polypeptides generated by incomplete hydrolysis of wheat protein have certain physiological activities, such as inhibiting hypertension and improving immunity.
2. wheat protein has a wide range of uses in food, and can be used as food preservation agent, emulsifier, foaming agent, chewing gum base, used in wine, edible artificial casing, cheese, acidic beverage, edible thin film, protein film Processing of food, baked goods, breakfast cereals, pet food and meat products.
3. Utilizing wheat gluten enhances dough strength, retains gas and controls expansion for consistent bread volume. The water absorption and retention properties of wheat gluten improve product yield, keep bread soft, extend shelf life, enhance natural taste, etc., and can produce a variety of high-quality bread products.
4. To produce dried noodles, add 1% to 2% active gluten, because the dough is well formed, the softness is increased, and the gluten strength is increased, so the production is convenient and the touch is improved. It is used to produce boiled noodles, which can improve the yield of boiled noodles, prevent noodles from being too soft or broken, and delay the extension of noodles.
If you are looking for a good quality and reasonable price of hydrolyzed wheat protein,Xinrui Group can provide you with the best
P.1: Xinrui Group – Plantation Base – N-GMO Soybean Plants
Soybeans were cultivated in Asia about 3,000 years ago. Soy was first introduced to Europe in the early 18th century and to British colonies in North America in 1765, where it was first grown for hay. Benjamin Franklin wrote a letter in 1770 mentioning bringing soybeans home from England. Soybeans did not become an important crop outside of Asia until about 1910. Soy was introduced to Africa from China in the late 19th Century and is now widespread across the continent.
In America soy was considered an industrial product only and not used as a food prior to the 1920’s. Traditional non-fermented food uses of soybeans include soy milk and from the latter tofu and tofu skin. Fermented foods include soy sauce, fermented bean paste, natto, and tempeh, among others. Originally, soy protein concentrates and isolates were used by the meat industry to bind fat and water in meat applications and to increase protein content in lower grade sausages. They were crudely refined and if added at above 5% amounts, they imparted a “beany” flavor to the finished product. As technology advanced soy products were refined further and exhibit a neutral flavor today.
In the past the soybean industry begged for acceptance but today soybean products can be found in every supermarket. Differently flavored soy milk and roasted soybeans lie next to almonds, walnuts and peanuts. Today soy proteins are considered not just a filler material, but a “good food” and are used by athletes in diet and muscle building drinks or as refreshing fruit smoothies.
P.2: Xinrui Group –N-GMO Soybeans
Soybeans are considered to be a source of complete protein. A complete protein is one that contains significant amounts of all the essential amino acids that must be provided to the human body because of the body’s inability to synthesize them. For this reason soy is a good source of protein amongst many others for vegetarians and vegans or for people who want to reduce the amount of meat they eat. They can replace meat with soy protein products without requiring major adjustments elsewhere in the diet. From the soybean many other products are obtained such as: soy flour, textured vegetable protein, soy oil, soy protein concentrate, soy protein isolate, soy yoghurt, soy milk and animal feed for farm raised fish, poultry and cattle.
The dramatic increase in interest in soy products is largely credited to the 1995 ruling of the Food and Drug Administration allowing health claims for foods containing 6.25 g of protein per serving. The FDA approved soy as an official cholesterol-lowering food along with other heart and health benefits. The FDA granted the following health claim for soy: “25 grams of soy protein a day, as part of a diet low in saturated fat and cholesterol, may reduce the risk of heart disease.”
Soy flour is made by milling soybeans. Depending on the amount of oil extracted the flour can be full-fat or de-fatted. It can be made as fine powder or more coarse soy grits. Protein content of different soy flours:
Full-fat soy flour - 35%.
Low-fat soy flour - 45%.
Defatted soy flour - 47%.
Soybeans contain all three of the nutrients required for good nutrition: complete protein, carbohydrate and fat as well as vitamins and minerals including calcium, folic acid and iron. The composition of soy protein is nearly equivalent in quality to meat, milk and egg protein. Soybean oil is 61% polyunsaturated fat and 24% monounsaturated fat which is comparable to the total unsaturated fat content of other vegetable oils. Soybean oil contains no cholesterol.
Commercially processed meats contain soy protein today throughout the world. Soy proteins are used in hot dogs, other sausages, whole muscle foods, salamis, pepperoni pizza toppings, meat patties, vegetarian sausages etc. Hobbyist have also discovered that adding some soy protein allowed them to add more water and improved the texture of the sausage. It eliminated shrivelling and made the sausage plumper.
Soy concentrates and isolates are used in sausages, burgers and other meat products. Soy proteins when mixed with ground meat will form a gel upon heating, entrapping liquid and moisture. They increase firmness and juiciness of the product and reduce cooking loss during frying. In addition they enrich the protein content of many products and make them healthier by reducing the amount of saturated fat and cholesterol that otherwise would be present. Soy protein powders are the most commonly added protein to meat products at around 2-3% as the larger amounts may impart a “beany” flavor to the product. They bind water extremely well and cover fat particles with fine emulsion. This prevents fats from lumping together. The sausage will be juicier, plumper and have less shrivelling.
Soy protein concentrate (about 60% protein), is a natural product that contains around 60% protein and retains most of the soybean’s dietary fiber. SPC can bind 4 parts of water. However, soy concentrates do not form the real gel as they contain some of the insoluble fiber that prevents gel formation; they only form a paste. This does not create a problem as the sausage batter will never be emulsified to the extent that the yoghurt or smoothie drinks are. Before processing, soy protein concentrate is re-hydrated at a ratio of 1:3.
Soy protein isolate, is a natural product that contains at least 90% protein and no other ingredients. It is made from de-fatted soy meal by removing most of the fats and carbohydrates. Therefore, soy protein isolate has a very neutral flavour compared to other soy products. As soy protein isolate is more refined, it costs slightly more than soy protein concentrate. Soy protein isolate can bind 5 parts of water. Soy isolates are excellent emulsifiers of fat and their ability to produce the real gel contributes to the increased firmness of the product. Isolates are added to add juiciness, cohesiveness, and viscosity to a variety of meat, seafood, and poultry products.
P.3: Xinrui Group –Ruiqianjia Brand ISP – Good gel and emulsification.
For making quality sausages the recommended mixing ratio is 1 part of soy protein isolate to 3.3 parts of water. SPI is chosen for delicate products that require superior flavor such as yoghurt, cheese, whole muscle foods and healthy drinks. Isolated Soy protein manufactured by Xinrui Group - Shandong Kawah Oils and exported by Guanxian Ruichang Trading usually contains 90% of protein.
P.4: N-GMO –SPI Made by Xinrui Group - Shandong Kawah Oils
The protein separated from soybean meal. They contain more than 90% protein. The basic principle of producing SPI is simple. Using defatted soybean flakes as raw materials, protein is first dissolved in water. The solution is separated from the solid residue. Finally, the protein is washed out of the solution, separated and dried.
Isolated soy protein is a kind of surfactant, which can reduce the surface tension of water and oil as well as air. It is easy to form stable emulsion. In the process of making baked food, frozen food and soup food, adding soy protein isolate as emulsifier can make the product stable.
Isolated soy protein can be added into meat products to form emulsion and gel matrix to prevent fat from moving to the surface. Therefore, it can promote fat absorption or fat binding. It can reduce the loss of fat and juice during the processing of meat products, help maintain the stability of appearance, and the oil absorption rate of protein separated is 154%.
It has high viscosity, plasticity and elasticity. It can be used not only as a carrier of water, but also as a carrier of flavoring agent, sugar and other complexes, which is very beneficial to food processing.
In soy protein, the foaming property of protein isolate is the best. The foaming property of soybean protein can give loose structure and good taste to food.
When the meat is chopped, the mixture of protein isolate and egg protein is applied on the surface of the fiber to form a thin film, which is easy to dry, can prevent odor loss, is conducive to the rehydration process, and provides a reasonable structure for the rehydrated products.
The application scope of soy protein in meat products is becoming more and more extensive, because of its good nutritional value and functional properties.
Adding soy protein in meat products can not only improve the product yield, but also improve the taste of the product. Soy protein has good gel property and water retention. When heated over 60℃, the viscosity increases rapidly, when heated to 80-90℃, the gel structure will be smooth, so that soy protein entering into the tissue of meat can improve the taste and quality of meat greatly. Soybean protein has both hydrophilic and hydrophobic properties which can easily combine with water and saturated with oil, so it has good emulsifying feature. This processing characteristic is very important in the processing of meat products with high fat content, which can restrain the lost of fat to stabilize the product quality. Although soy protein plays an important role in meat processing, in order to control soy protein in meat products replacing of whole meat and prevent adulteration, many countries have restrictly addition of it to ensure the healthy development in meat process. In view of the fact that there is no effective method for the determination of soy protein in meat products, it is great significant to study the detection method of soy protein in meat products.
2 Advantages of applying soy protein in meat products
Meat is reagarded as the best source of protein, owing to its high nutritional value and good taste in western countries. In order to make full use of animal resources, meat processing enterprises not only use protein-rich lean meat, but also often use fat-rich chicken skins, fat and other low-value materials. For example, Bologna sausages, Frankfurt sausages, salami and other meat products have relatively high content of fat. For example, Frankfurt sausages has about 30% of the intestine fat content and raw pork intestine fat content of up to 50%. High fat additions make meat processing more difficult. For example, in the production of emulsified sausages with high fat content, it is easy to form the phenomenon of oil. In order to control the oiling phenomenon of sausages in the heating process, it is necessary to add emulsifiers or accessories with the function of water-preserving oil. Usually, meat products as a "emulsifier" is the meat protein, but once the amount of lean meat added is relatively small, fat content is large, the entire emulsification system will lose balance, some fat in the heating process will be isolated. This can be addressed by adding non-meat protein, thus soy protein the best option. In meat processing, there are several other important reasons for adding soy protein. Medical health experts believe that low-fat meat products are healthier, fatty meat products are more likely to cause high blood pressure and other related diseases. Low-fat meat products will become the future development trend of meat products. Developing low-fat meat products is not simply a reduction in fat addition, which also requires a comprehensive consideration of the taste of product. As fat plays an important role in juicy, tissue structure and other aspects of meat products, once reducing the amount of fat, the taste of meat products will be affected.Therefore, in the development of meat products, "fat substitute" is necessary, it can reduce the fat content of the product on the one hand, on the other hand it can ensure the taste of the product. By adding soy protein, not only can reduce the calories of the product, but also can preserve the flavor and taste of the product to the greatest extent. Wheat protein, egg white and soy protein are better fat substitutes, while soy protein is more popular because of its good processing properties. Another reason to add soy protein is that it's much cheaper than meat protein. Adding plant protein can greatly reduce the production cost of meat products. In the actual production, because of the high price of meat protein, in order to improve the cost performance of the product, the low price of soy protein is often the first choice of production enterprises. In addition, in economically backward areas, animal protein is very scarce, soy protein and other plant protein is the most important source of protein. Soybean protein is the most widely used plant protein. Its main advantages lie in: First, smaller peculiar smell; Second, the price is low; Thirdly, high nutritive value ( soybean protein is rich in essential amino acids, and its digestibility and absorption rate are high in human body ) Fourth, excellent processability (better hydration, gelation and emulsification); Fifth, the use of meat products can improve product appearance quality and palatability. Soy protein can be divided into soy protein concentrate, soy texture protein, soy protein isolate and so on according to their components. Each protein product has different functional properties, which are applied to different types of meat products according to different functional properties. For example, soy protein isolate and protein concentrate are mainly used in some emulsified sausages. Compared with soy protein concentrate, soy protein isolate is rich in raffinose and stachyose oligosaccharides, which can easily cause bloating. Tissue proteins are often used in meatballs and pies. In addition, soy protein isolate ( SPi) and soy protein concentrate ( SPc) are often used in some injection-type meat products to improve the hardness, slicing and yield of the products. Because soybean whole flour has strong beany smell and rough taste, Ruiqianjia soy protein isolate and protein concentrate are better than soy whole flour in food processing.
3 Requirements and problems of soy protein applying in meat products
Too muchh addition of soy protein can cause allergies in some groups of people, in order to prevent soy protein being used as pure whole meat in meat process, to prevent adulteration and ensure the healthy development of the meat industry, many countries have strictly restricted the addition amount of soy protein. Some countries have strictly restricted the amount of soy protein added to meat products. In the United States, for example, the amount of soy flour and soy concentrate protein in sausages can not exceed 3. 5%, the addition of soy protein isolate should not exceed 2%; Soy flour, soy protein concentrate and soy isolated protein in beef patties and meatballs should not be over 12%. In salami, many countries have strict restrictions on the amount of addition soy protein, Spain requires less than 1%; French food laws require less than 2 per cent.
The U.S. labeling requirements for soy protein in meat products are as follows:
When the soy protein addition is less than 1/13, it needs to be identified in the ingredients list; When the addition is close to 10%, it should not only be identified in the ingredients list, but also be commented next to the product name; When its content is more than 10%, soy protein is not only identified in the ingredients list, but also in the product attribute name.
Many countries have strict requirements for the addition of soy protein and the marking of meat products. But there is no effective way to detect soy protein. Because current testing of proteins is mainly determined by detecting nitrogen content, plant proteins and meat proteins are difficult to distinguish. In order to further regulate the use of soy protein in meat products, a method to detect plant protein content is needed. In the 1880s, many food scientists studied the detection of soy protein content in meat products. The enzyme-linked immunoassay method is recognized as a more authoritative test, but the standard of the soy protein added is required to use this method. In view of this, there is no effective way to carry out a simple and rapid test of soy protein in meat products. In order to regulate the use of soy protein in meat products, it is important to develop an effective test
Soy protein as a high-quality plant protein comparable to animal protein, containing the human body's 8 essential amino acids, with high nutritional value, meanwhile soy protein has excellent water & oil bonding and excellent gel characteristics, as well as cheap price and other advantages to make it widely used in meat processing. However, some enterprises use soy protein to increase water retention and thus cover up adulteration, in order to sub-charge, damage consumer rights and interests, which should be severely cracked down and controlled. At present, there is no effective detection method for soy protein in meat products, so it is urgent to develop a new test method for the rapid, convenient and accurate discrimination of meat adulteration.
Xinrui group – Shandong Kawah Oils Co., Ltd. Factory direct supply soy isolated protein.
www.xinruigroup.cn / email@example.com /+8618963597736.
Xinrui Group is a leading soy protein and Wheat protein production base in China. The company will participate in the 25th China International Food Additives and Ingredients Exhibition from August 16 to 18, 2022 in Guangzhou, Guangdong Province. At the exhibition, Xinrui Group will showcase its latest wheat gluten, soy dietary fiber and soy protein isolate products and technologies.
Exhibition pictures over the years
With the strong support of colleagues in the food additives and ingredients industry, FIC has become a world-renowned, Asia's largest, most international and most cohesive food additives and ingredients industry brand exhibition after more than 20 years of cultivation and development. , much favored by colleagues in the industry at home and abroad.
This Exhibition is an important event that will take place in Guangzhou from August 16 to 18, 2022. Xinrui Group will participate in this exhibition and show our latest wheat gluten, Wheat protein, soy dietary fiber and soy protein isolate products and technologies.
Xinrui Group is China's high-quality wheat protein & soy protein production base. With 17 years of agricultural products extraction and sales experiences, we are an integration of multiple and diversified group companies. Its products include vital wheat gluten, wheat starch, soy dietary fiber, soy protein isolate, edible ethanol and so on.
Xinrui Group will exhibit its wide range of wheat protein & soy protein products. These products include include vital wheat gluten, wheat starch, soy dietary fiber, soy protein isolate, edible ethanol and so on. They are used in various foods such as beverage, meat processing, Cooking, Emulsifier, Food Additive, bakery and meat products.
Visitors to the exhibition will have the opportunity to find information about our products and learn about their application in food production. They will also be able to ask questions about our products and services.
Xinrui Group has participated in the China International Food Additives and Ingredients Exhibition for many years now. The exhibition is a great opportunity to network with industry leaders and to showcase our latest products to food additives and ingredients manufacturers.
This year's exhibition will be held from August 16 to 18, 2022 in Area A of the China Import and Export Fair Complex in Guangzhou. We look forward to seeing you there!