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METHOD FOR THE PRODUCTION OF L-ASCORBIC ACID BY LACTONISATION OF 2-KETO-L-GULONIC ACID OR 2-KETO-L-GULONATE ESTERS
METHOD FOR THE PRODUCTION OF L-ASCORBIC ACID BY LACTONISATION OF 2-KETO-L-GULONIC ACID OR 2-KETO-L-GULONATE ESTERS
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机译：通过2-酮基-L-古洛糖酸或2-酮基-L-古洛糖酸酯的酯化生产L-抗坏血酸的方法
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摘要
The invention relates to a method for the production of L-ascorbic acid, whereby free 2-keto-L-gulonic acid or 2-keto-L-gulonate C3-C10-alkyl ester is lactonised under acid conditions in the presence of a water-miscible organic solvent and said solvent produces in situ a solvent in which the produced L-ascorbic acid is poorly soluble.
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