VITAMIN B12 CONTENT IN THE ANAEROBIC FERMENTATION PRODUCTS OF DISTILLERS' WASTES
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概要
- 論文の詳細を見る
Investigation was made on the methane fermentation products of alcoholic distillers' wastes from the viewpoint of vitamin B12 resources. Vitamin B12 was determined with the samples of the pilot plant at the Fermentation Research Institute and of the digester at Yoshinoya Factory.The results indicate that distillers' wastes contain a small amount of vitamin B12, while a remarkable increase of the vitamin was recognized after methane fermentation and the vitamin was mainly contained in the cells of the fermentation bacteria. It was found that the bacterial cell fraction of high vitamin B12 content could be obtained by centrifuging the supernatant liquor discharged from digester and was the best raw material for crystalline vitamin B12.The bacterial cell fraction obtained from the supernatant at Yoshinoya contained vitamin B12 as unprecedentedly much as 70-90γ/g on a dry basis. The high vitamin content seems to be partly due to thermophilic fermentation.
- 日本ビタミン学会の論文
著者
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Kamikubo Tadashi
Deparment Of Food Science And Technology Faculty Of Agriculture Kyoto University
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TAKATA RYOHEI
Department of Industrial Chemistry, School of Engineering, Kyoto University
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KAMIKUBO TADASHI
Department of Industrial Chemistry, School of Engineering, Kyoto University
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