%0 Journal Article
%T Synthesis of ¦Â-Maltooligosaccharides of Glycitein and Daidzein and their Anti-Oxidant and Anti-Allergic Activities
%A Kei Shimoda
%A Hiroki Hamada
%J Molecules
%D 2010
%I MDPI AG
%R 10.3390/molecules15085153
%X The production of ¦Â-maltooligosaccharides of glycitein and daidzein using Lactobacillus delbrueckii and cyclodextrin glucanotransferase (CGTase) as biocatalysts was investigated. The cells of L. delbrueckii glucosylated glycitein and daidzein to give their corresponding 4'- and 7-O-¦Â-glucosides. The ¦Â-glucosides of glycitein and daidzein were converted into the corresponding£¿ ¦Â-maltooligosides by CGTase. The 7-O-¦Â-glucosides of glycitein and daidzein and 7-O-¦Â-maltoside of glycitein showed inhibitory effects on IgE antibody production. On the other hand, ¦Â-glucosides of glycitein and daidzein exerted 2,2-diphenyl-1-picrylhydrazyl (DPPH) free-radical scavenging activity and supeoxide-radical scavenging activity.
%K glycitein
%K daidzein
%K ¦Â-maltooligosaccharides
%K anti-allergic activity
%K anti-oxidant activity
%U http://www.mdpi.com/1420-3049/15/8/5153