期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 58, 期 19, 页码 10305-10308出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf102003m
关键词
beta-1,3-beta-1,6-glucan; beta-glucan; lyticase; exo-1,3-beta-D-glucanse; beta-glucosidase
An enzymatic method to measure beta-glucan content (GEM assay) is applicable in a variety of matrices. The method is composed of swelling the sample with KOH and initial digestion with a lyticase, which is followed by treatment with a mixture of exo-1,3-beta-D-glucanase and beta-glucosidase that converts the beta-glucan to glucose. The glucose generated by the enzymatic hydrolysis is measured by another enzymatic method. The method is shown to be accurate and precise. The method is selective and applicable to both highly branched and unbranched beta-1,3-glucans.
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