Transglycosylation to produce a 2-O-alpha -d-glucopyranosyl L-ascorbic acid (AA-2G) was studied using cyclodextrin glucanotransferase (CGTase) from Paenibacillus sp. A series of maltooligosaccharides substituted 2-O-derivatives of L-ascorbic acid (AA) were analyzed by HPLC. The maltooligosaccharides were hydrolyzed by glucoamylase to give AA-2G. CGTase also produced AA-2G using dextrin as a glycosyl donor and AA as an acceptor. CGTase utilized alpha-, beta-, and gamma -CDs, amylose, soluble starch and corn starch as glycosyl donors but not glucose.
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Prefectural Univ Hiroshima, Fac Life & Environm Sci, Hiroshima 7270023, JapanPrefectural Univ Hiroshima, Fac Life & Environm Sci, Hiroshima 7270023, Japan
Tai, Akihiro
Ikeda, Sayoko
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Prefectural Univ Hiroshima, Fac Life & Environm Sci, Hiroshima 7270023, JapanPrefectural Univ Hiroshima, Fac Life & Environm Sci, Hiroshima 7270023, Japan
Ikeda, Sayoko
Yazama, Futoshi
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Prefectural Univ Hiroshima, Fac Life & Environm Sci, Hiroshima 7270023, JapanPrefectural Univ Hiroshima, Fac Life & Environm Sci, Hiroshima 7270023, Japan
Yazama, Futoshi
Ito, Hideyuki
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Okayama Univ, Div Pharmaceut Sci, Grad Sch Med Dent & Pharmaceut Sci, Okayama 7008530, JapanPrefectural Univ Hiroshima, Fac Life & Environm Sci, Hiroshima 7270023, Japan