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EFFECTS OF BROMATE AND GIBBERELLIC ACID ON MALTING BARLEY
Author(s) -
Dudley M. J.,
Briggs D. E.
Publication year - 1977
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.2050-0416.1977.tb03815.x
Subject(s) - gibberellic acid , bromate , potassium bromate , chemistry , gibberellin , agronomy , botany , biochemistry , biology , catalysis , ion , organic chemistry , germination
Barley was micromalted with or without gibberellic acid and with or without additions of potassium bromate. Bromate initially depressed and subsequently enhanced levels of soluble nitrogen. This can be explained by a combination of reduced proteolysis, reduced respiratory losses, reduced rootlet growth and a decline with time in the inhibitory effects of the bromate. It was most useful when applied at steep‐out. Bromate added alone at steep‐out enhanced malt extract. However when added with gibberellic acid (GA 3 ) it did not increase the extract above that obtained with GA 3 alone. This contrasts with industrial experience, and suggests a weakness in current micromalting techniques.