The Technique Of Producing Desired Additives From Waste Beer Yeast

The coposition of waste beer yeasts is:about 70% moisture content, protein, nucleic acid,V_B and minerals,etc.The composition of amino acids contents is similar to the recommended intake ammonts of amino acids by the FAO.There are extensive appliaction prospects in the fields of new nattral protein resources and comprehensive utilizations. This paper determin the protein contents of waste beer yeasts. This paper made investigations of debitter, deodorization, autolyze techniques and waste beer yeasts of different velocities nami-broken machine treated techniques.After the final vacuum concentration a newly high-protein,high-arnino acid contents and non-additional chemosynthesis-treatment food additive can be achived.(1) Adopped peroxidase Kjeldahl to determine the protein content of the samples.Compariing with the traditional Kjeldahl determination,the steaming process has been omitted. The 2-3 hours carbonization and digestion processes of commonly samples was shorten to only 8 minutes.(2) After different matches and times of asepsis water and 5% sodium chloride sollution treatment optimized, the best debitter and deodorization technics were determined by orthorhombic experiments.(3) high-pressure nami-broken machine to treat waste beer yeasts are adopped in this paper.And the problem of the low nutrient extraction efficiency of waste beer yeasts caused by the tough cell has been solved.(4) After enzymolysis treatment,the waste beer yeasts were broken down by the natal-broken machine under 150MP～200MP. Detected by microscope after treated by the nami-broken machine,the mixed materials are mainly composed by cavum cells and fragments.The efficiency of the crash of the waste beer yeasts can be 97.9%.(5)Adopped vacuum concentration method to treat the following natal-broken waste beer yeasts materials and a newly natural food additive can be achived.(6)Using waste beer yeasts-making natural food additive to make sour milk, the newly health protection drink is a kind of nutritional product with a distinct and sour-sweet blanced flavor.