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Assignment of structures to oligosaccharides produced by enzymic degradation of a β-d-glucan from barley by 1H- and 13C-n.m.r. spectroscopy

✍ Scribed by Klaus Bock; Jens Ø. Duus; Barrie Norman; Sven Pedersen

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 946 KB
Volume: 211
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(91)80093-3

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✦ Synopsis

The structures of one tri-(1), two tetra-(2 and 3), and one hexa-saccharide (4) produced by treatment of barley flour, after removal of the starch components, with a fungal beta-D-glucanase (Finizyme) have been assigned on the basis of 1H- and 13C-n.m.r. data as follows: beta-D-Glcp-(1----3)-beta-D-Glcp-(1----4)-D-Glcp (1), beta-D-Glcp-(1----4)-beta-D-Glcp-(1----3)-beta-D-Glcp-(1----4)-D-Glcp (2), beta-D-Glcp-(1----3)-beta-D-Glcp-(1----4)-beta-D-Glcp-(1----4)-D-Glcp (3), and beta-D-Xylp-(1----4)-[alpha-L-Araf-(1----3)]-[alpha-L-Ara f-(1----2)-beta-D-Xylp-(1----4)-beta-D-Xylp- (1----4)-D-Xylp (4).

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