馬鈴薯澱粉製造廃水処理に関する研究 : (第1報) 脱蛋白汁液の微生物処理(生物化学工学特集号-I廃液処理)

概要

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A potato juice separating system in potato starch processing was studied. When the potato juice was separated from ground potato, almost all organic substances except starch were removed. Using this system, it is possble to lower the B.O.D. of waste water more than by using the ordinary system. In the present study, a recovering procedure for protein contained in the waste water of this system and the culturing cnoditions of some microorganisms in the deproteined waste water were examined.The results were as follows; (1) About half of the nitrogen compound in potato juice could be recovered during coagulation by heating over 70C and using contineous centrifugal separation on an industrial scale. 2) Some kind of Lactobacillus could be cultured on this separated and dehydrated protein and this product could be used as pig feed. But the preservation of it was very difficult. (3) Various strains of microorganisms were cultured on deproteined potato juice in aerobic condition. Strain A-1007 was selected as the most powerful strain in reducing C.O.D. with a reduction ratio of 68%.
公益社団法人日本生物工学会の論文
1965-06-25