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STUDIES ON THE FREE SUGARS OF THE BARLEY GRAIN: IV. LOW‐MOLECULAR FRUCTOSANS
Author(s) -
MacLeod Anna M.
Publication year - 1953
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1953.tb06210.x
Subject(s) - chemistry , tetrasaccharide , hydrolysis , fructose , acetic acid , chromatography , oligosaccharide , invertase , sucrose , paper chromatography , xylose , acid hydrolysis , organic chemistry , polysaccharide , fermentation
Ungerminated barley yields a series of fructose‐containing oligosaccharides which can be separated, on charcoal‐kieselguhr columns and by paper chromatography, into at least six separate fractions. The simplest member of the fructosan series is glucodifructose, with smaller quantities of glucotrifructose, glucotetra‐fructose and glucopentafructose also present; the more complex fructosan material, ranging up to glucodecafructose, has not as yet been fractionated into discrete compounds. In addition to easily‐hydrolysable fructosan, one sample of Ymer barley contained traces of an oligosaccharide, in the tetrasaccharide region of the chromatogram, which was only partially hydrolysed by invertase or by acetic acid.