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KMID : 0903519840270040231
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1984 Volume.27 No. 4 p.231 ~ p.237
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Production of Yeast from the Acid Hydrolyzate of the Waste Composts of Oyster Mushroom
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김정숙/Kim, Jeong Sook
홍재식/고무석/이극노/Hong, Jai Sik/Koh, Moo Seok/Lee, Keug Ro
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Abstract
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Culture conditions for yeast production from the acid hydrolyzate of the 2nd waste composts of oyster mushroom (Pleurotus ostreatus) were determined.
Among the yeast strains tested, Candida quilliermondii JAFM 215, which was culture at 30℃, pH 5.0, shoved good culture yield.
Yeast production was the highest yield with the medium composition of 0.3% NH₄Cl, 0.15% KH₂PO₄, 0.02% MgSO₄·7H₂O, and 0. 05% CaCl₂.
Yeast growth was increased at the concentration of 0.001 to 0.01% furfural, but at the higher concentration the yeast growth was inhibited.
Utilization rate of sugar was 86.2% and yield of yeast from sugar was 50.45%. Crude protein of yeast ranged from 50 to 52%.
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