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KMID : 0380619930250020142
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Korean Journal of Food Science and Technology
1993 Volume.25 No. 2 p.142 ~ p.147
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Isolation of Photosynthetic Bacteria and the Cell Growth on Soybean - Curd Whey Wastes
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Lee Ke-Ho
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Abstract
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For the purpose of fixing solar energy and utilizing water wastes from food industries for SCP(single cell protein), 170 strains of photosynthetic bacteria were isolated from 56 samples. Among 170 strains, B-Ps-106 strain was selected as the most suitable strain and identified as a variant or a relation of Rhodopseudomonas sphaeroides and its growth was better under anaerobic light condition than aerobic condition. The optimum conditions of the cell growth of B-Ps-106 were investigated on soybean-curd whey media. The optimum pH for cell growth was 8.5∼9.0. The optimum temperature was 30℃ and the optimum light density was above 0.72 ㎈/㎠/min. The most favorable concentration of K₂HPO₄ and (NH₄)₂S0₄ was both 0.9 g/l when added to soybean-curd whey media.
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