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61.
公开(公告)号:US5026833A
公开(公告)日:1991-06-25
申请号:US489568
申请日:1990-03-07
申请人: Yukio Suzuki , Kei Suzuki , Masaru Yoneyama , Toshio Miyake
发明人: Yukio Suzuki , Kei Suzuki , Masaru Yoneyama , Toshio Miyake
IPC分类号: A23L1/00 , A23L2/52 , A23L2/58 , A23L3/3472 , A23L3/3544 , A61K8/00 , A61K8/49 , A61K8/60 , A61K31/70 , A61K31/7042 , A61K31/7048 , A61P9/00 , A61Q1/02 , A61Q5/02 , A61Q11/00 , A61Q17/04 , A61Q19/00 , A61Q19/02 , C07H17/07 , C09K15/06 , C12P19/44 , C12P19/60
CPC分类号: C07H17/07 , A23L3/3472 , A23L3/3544 , A61K8/602 , A61Q1/02 , A61Q1/06 , A61Q17/04 , A61Q19/00 , A61Q5/02 , A61K2800/522 , A61Q11/00 , A61Q19/02
摘要: A novel glycoside, 4.sup.G -alpha-D-glucopyranosyl rutin, is formed by a saccharide-transferring enzyme and glucoamylase in a solution which contains rutin together with glucoamylase. The 4.sup.G -alpha-D-glucopyranosyl rutin formed in such a solution is purified with a synthetic macroreticular resin, and crystallization in an organic solvent yields a complex crystal with the organic solvent. 4.sup.G -Alpha-D-glucopyranosyl rutin exhibits the same molecular absorption coefficient as intact rutin, and is readily water-soluble, substantially tasteless and odorless, and readily hydrolyzable in vivo to exhibit physiological activities inherent to rutin. These render 4.sup.G -alpha-D-glucopyranosyl rutin very useful as a highly-safe, natural yellow coloring agent, antioxidant, stabilizer, quality-improving agent, preventive, remedy, uv-absorbent and deterioration-preventing agent in foods, beverages, tobaccos, cigarets, feeds, pet foods, pharmaceuticals, cosmetics and plastics.