醗酵によるVitamin Cの製造 (第1報) : Ca-5-keto-D-gluconateよりCa-L-idonate及びCa-D-gluconateの製造

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概要

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• In the presence of RANEY Nickel as catalyst, Ca-5-keto-d-gluconate which was prepared from d-glucose by the oxidative fermentation of Acetobacter suboxydans 621,could be hydrogenated under atomospheric or high pressure into the mixture of Ca-l-idonate and Ca-d-gluconate.l-idonic acid was separated as dibenzal-l-idonic acid and identified as its brucin salt. After removing benzaldehyde with ether, the filtrate was neutralized with CaCo_8 and Ca(OH)_2,and Ca-d-gluconate was obtained. The total yield of both acids was about 90〜93% (l-idonic acid 47%, d-gluconic acid 43%). Lastly, it was observed that, even in high pressure reduction, the mixture was not epimerized to Ca-l-gulonate and Ca-d-mannonate.The details of temperature and time used for the reduction of Ca-5-keto-d-gluconate are described.

• 社団法人日本生物工学会の論文
• 1953-02-15

著者

• 山崎 正孝

  財團法人・醫藥資源研究所

• 三木 太平

  財團法人・醫藥資源研究所

関連論文

• 醗酵によるVitamin Cの製造(第4報) : Shaking CultureによるCa-L-Idonate, Ca-D-Gluconateの2-ケト-酸々化(2)
• 醗酵による Vitamin C の製造 (第3報) : 振盪培養による Ca-L-Idonate, Ca-D-Gluconate 混合物の2-ケト酸々化
• 醗酵によるVitamin Cの製造 (第2報) : Psuedomonas属酸化細菌によるCa-L-idonate, Ca-D-gluconateの酸化並に酸化生成物の分離
• 醗酵によるVitamin Cの製造 (第1報) : Ca-5-keto-D-gluconateよりCa-L-idonate及びCa-D-gluconateの製造

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