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주정폐액의 이용에 관한 연구 Studies on the Utilization of Alcohol Distiller´s Waste

산업미생물학회지 1974년 2권 2호 p.83 ~ 88
류경, 오두환, 김성희,
소속 상세정보
류경 (  ) 
연세대학교 식품공학과

오두환 ( Oh Doo-Hwan ) 
연세대학교 식품공학과
김성희 (  ) 
연세대학교 식품공학과

Abstract


The water pollution by waste water is one of the important issue and the short of animal feed is too, in Korea. So, this experiment is accomplished to treat alcohol distillers´ waste by micro-organisms and planning to produce yeasts, which can be used as animal feed, pharmacy and condiments.
1. The raw material, alcohol distillers´ waste, of this experiment consists of insoluble solids (residue) and filterate (supernatant). The residue contains 33.08% of crude protein, 19.96% of total sugar and 2.06% of ash, respectively. On the other hand the filterate through the Toyo filter paper No. 5C, contains 2.48% of crude protein, 1.54% of reducing sugar, and. 0.43% of ash. respectively.
2. Optimum pH of the basal medium for the growth of Saccharomyces cerevisiae YF-1 is 4.O. Optimum culture condition of this is as follows: when 0.43g of urea, 0.43g of potassium phosphate monobasic, and 0.21g of magnesium sulfate are added to the 100ml of basal medium.
Optimum temperature and optimum incubation time are 30℃ and 24―28 hrs.
3. Under these conditions, the maximum yield of dry yeast is 1.38% to the medium.
4. The composition of dry yeast, produced under these conditions, is as follows: crude protein, 56.96%, lipid, 1.30% total sugar, 6.53%, and ash 9.62%.

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