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KMID : 0903519870300030258
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1987 Volume.30 No. 3 p.258 ~ p.263
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Single Cell Protein Production by a Yeast Utilizing Alcoholic Waste Fluid of Sweet Potatoes
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Abstract
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The waste gained from alcohol production with sweet potato was considered as a potential substrate for the production of single cell protein (SCP). The high content in organic materials, simplicity to filtrate and a suitable pH for the growth of yeasts were indicated as a good substrate. A yeast utilizing this substrate was isolated from the compost ground and identified as Candida boidinii. The strain was the highest in assimilation of this alcoholic waste and the yield was maximized at pH 5.0, 30℃ after 72 hrs incubation. The dry cell weight and crude protein content at optimal conditions were 1.02g/100㎖ and 54.5%, respectively. The growth of the yeast was stimulated with the addition of 0.2% urea, 0.1% K₂HPO₄, and 0.02% MgSO₄-7H₂O.
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