Polypeptide food

A compound in which amino acids are linked to each other by amide bonds is called a peptide A peptide containing less than 10 amino acids is called an oligopeptide, and a peptide containing more than 50 amino acids is called a protein Polypeptides can be extracted from a variety of animals and plants, such as walnut, corn, pea, balsam pear, mung bean, rice, peanut and seafood in plants, forest frog, deer, turtle in animals, etc Theoretically, any protein consists of amino acids According to the biochemical classification, the substance composed of more than 100 amino acids is protein, and the substance composed of less than 100 amino acids is named "polypeptide" In general, proteins become peptides after being hydrolyzed by specific enzymes Scientific research shows that polypeptides are safer than proteins in human digestive tract So far, polypeptides have been widely used in food industry Its uses include: health food, beverage, seasoning, nutritional additives (such as for infant milk powder) In recent years, the production and sales of polypeptide raw materials in foreign countries have increased greatly, and the total number of polypeptide containing foods in the Japanese market alone has exceeded 50 The product characteristics and main properties of foreign food peptides are introduced as follows ● soybean polypeptide is obtained by hydrolyzing soybean protein, which has many activities such as promoting lipid metabolism, eliminating muscle fatigue and lowering cholesterol Some manufacturers in Japan and the United States have used soy peptides to produce new sports drinks and other health food Due to its low price and precise health care effect, soybean peptides as natural anti fatigue substances are more and more used in all kinds of health food in the next few years ● milk polypeptide milk polypeptide (milk polypeptide) is a kind of milk white substance obtained from the enzymatic decomposition of casein from milk, which is more easily digested and absorbed than casein In recent years, foreign manufacturers have successfully solved the problem of unique bitter taste of milk polypeptide Adding milk polypeptide to infant milk powder can greatly improve the nutritional value of the latter and promote the growth and development of premature infants The latest research shows that milk polypeptide can inhibit hypertension and has good oral absorption, so it is expected to develop a new type of blood pressure reducing health food for middle-aged and elderly consumers Another advantage of milk polypeptide is that it can promote the growth of probiotics such as bifidobacteria in E.coli, so it can be added to yoghurt as the "culture medium" of bifidobacteria or Lactobacillus A polypeptide product extracted from fish protein Japan first developed sardine polypeptide Clinical studies have confirmed that sardine polypeptide has the effect of inhibiting angiotensin-converting enzyme and therefore has the effect of lowering blood pressure Sardine sardine also has the effect of improving hyperglycemia and inhibiting cholesterol and promoting mineral absorption Because sardine polypeptide production cost is low (sardine belongs to a large marine fish), processing Cheng Baojian food will not increase many costs It has been used for a long time as a thickener in food industry Gelatin is a kind of protein material extracted from pig skin (or cow hide) and pig bone (or cow bone) Japanese researchers found that the "gelatin polypeptide" produced after hydrolysis of gelatin has excellent cosmetic effects (such as skin rejuvenation and elimination of fine wrinkles on the face) Gelatin polypeptide can be directly used to produce health food or cosmetics Many countries, such as Europe and the United States, have developed "gelatin polypeptide" and various downstream products using gelatin as raw material Because Japanese pig skin gelatin is mostly imported from overseas, the raw materials are in short supply ● gluten polypeptide gluten (gluten) is a kind of plant protein isolated from wheat, which is decomposed by enzyme to get "gluten polypeptide" According to foreign reports, gluten polypeptide can enhance human immunity, promote intestinal function recovery and resist mental pressure after operation In Europe and the United States and other countries, gluten based peptide products have been developed for the production of various functional drinks and food ● sesame polypeptide sesame contains rich high-quality protein components A new kind of polypeptide, sesame polypeptide, was obtained by enzymatic decomposition of sesame oil cake Sesame polypeptide has excellent antihypertensive effect and can be directly used in the production of antihypertensive health food In addition, sesame polypeptides have many advantages, such as good heat resistance, acid resistance, and special aroma ● egg white polypeptide egg white (namely "egg white") is also a high-quality protein raw material, which is widely used in the food industry Japanese manufacturers began to produce "egg white polypeptide" in October this year, which is mainly used for patients or the elderly and the weak as supplementary nutrients Now, the products have been on the market.