期刊
ANALYTICAL BIOCHEMISTRY
卷 632, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2021.114366
关键词
beta-(1 -> 2)-glucan; beta-(1 -> 2)-glucooligosaccharide; beta-glucosidase; 1,2-beta-oligoglucan phosphorylase; Sucrose phosphorylase
Beta-(1 -> 2)-glucans were synthesized using different methods to achieve varying degrees of polymerization, with beta-(1 -> 2)-glucans up to approximately 280 obtained using sucrose phosphorolysis as a source of mo-glucose 1-phosphate. A colorimetric assay of beta-glucosidase activity was used to determine the degrees of polymerization of the beta-(1 -> 2)-glucan products.
beta-(1 -> 2)-Glucans can be synthesized by 1,2-beta-oligoglucan phosphorylase using beta-(1 -> 2)-glucooligosaccharides as acceptors and mo-glucose 1-phosphate as a donor. Using phosphorolysis of sucrose as a source of mo-glucose 1-phosphate, we generated beta-(1 -> 2)-glucans with degrees of polymerization (DPs) up to approximately 280. Average DPs up to approximately 1000 were obtained using beta-(1 -> 2)-glucan with average DP of 160 as an acceptor and pure alpha-D-glucose 1-phosphate as a donor. A colorimetric assay of the beta-glucosidase activity against the beta-(1 -> 2)-glucan products was used to determine their DPs.
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