What is beer yeast powder? Beer yeast powder refers to the yeast used for brewing beer. Most of them are different varieties of Saccharomyces cerevisiae. Beer yeast is a typical top fermentation yeast commonly used in beer production. With high content of vitamins and protein, thallus can be used as edible, medicinal and feed yeast, and cytochrome C, nucleic acid, glutathione, coagulum, coenzyme A and adenosine triphosphate can also be extracted from it. In the microbial determination of vitamins, beer yeast is commonly used to determine biotin, pantothenic acid, thiamine, pyridoxine and inositol. Today, Xiaobian will talk to you about those things about beer yeast.

In the process of fermentation, yeast itself is constantly multiplying, and at the end of fermentation, the weight of yeast can reach 2.5% of the weight of beer. The excellent yeast species can keep the stability of 10-12 generations of yeast properties and morphological-physiological characteristics. Therefore, the yeast in mature beer can be reused as the next batch of yeast species for wort fermentation. However, only a small part of the yeast is reused, and most of the yeast should be discharged or used for other purposes.

Beer is rich in nutrition. It not only contains a lot of protein and eight essential amino acids, but also contains a variety of vitamins, among which B vitamins are abundant, and there are 14 kinds of minerals needed by human body. As a by-product of beer brewing, the nutritional and medical value of yeast can not be underestimated. What is particularly striking is that beer yeast powder is rich in anti-aging active ingredients-nucleic acid, especially rna (ribonucleic acid) content above 4.5%-8.3%, and beer yeast cell wall composed of polysaccharides, which accounts for about 20% of yeast cell weight. It has the effects of normalizing cholesterol metabolism and preventing cancer. The comprehensive utilization of beer began in the 1970s in Europe and America. Later, developed countries such as Japan made more extensive research on beer yeast, improved the recycling rate, and made deep processing to turn waste into treasure. This shows that the comprehensive utilization of beer yeast powder has a broad prospect.

Beer can also be used as a nutritional additive. It is reported that Kirin Beer Company and Sapporo Beer Company of Japan use beer yeast powder to make nutritional food additives for sale. Additives can be mixed into soups, beverages, or minced meat for cooking, so as to improve the nutritional level of food.

Beer yeast powder can also be used as seasoning. If yeast is hydrolyzed to make yeast extract, it can be made into seasoning. This condiment can endow food with delicious taste. This kind of condiment has been produced in Japan for more than 30 years, and is very popular among consumers.

It is said that in ancient Egypt, people already knew how to treat diseases with beer sediment. In the 17th century, people discovered that beer yeast has the function of strengthening the body, while the medical value of beer yeast was discovered by scientists in the 1920s. In the 1920s, people in the eastern United States often found cases of rough skin. Goldberg, an American public health physician, believes that this is due to the lack of one or more nutrients. After the experiment, he asked the nursing staff to distribute brewer's yeast to the patients, and the patients got very satisfactory results after eating it. This is because brewer's yeast contains a lot of niacin, an anti-furuncle vitamin.

After the Second World War, German medical scientists further studied the nutritional value of beer yeast powder, and started a new chapter of brewing for the benefit of mankind. In 1951, German medical scientist Zwaz came to work in the National Institutes of Health as a visiting scholar, where he and his colleague Ferz discovered the American type of beer yeast powder, which could prevent and treat a liver disease found in Germany. This work guided them to discover that American yeast contained a selenium compound in 1957, and made it clear that selenium was an essential nutrient for human body.