VIII. AUTOLYSIS RELATIONSHIPS OF BARLEY PENTOSANS

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Abstract
During the autolysis of barley the pattern of behaviour of water-soluble pentosans is obscured by the massive changes in β-glucan, though the amounts of soluble pentosans increase during the 4-hr, autolysis period applied. Mechanical factors appear to play an important part in pentosan solubilization, both in regard to simple penetration of the tissue by the solvent and also to the influence on this penetration of the enzymolysis of non-pentosan materials, particularly, perhaps, β-glucan and protein; this conclusion seems to have special significance during the early days of malting, and emphasizes the importance which should be attached to the physical condition of the grain.

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