A new method for estimating malt β-glucanase activity, based on a chemically modified, azo dye-labelled barley β-glucan substrate, has been compared with a viscometric procedure. The azo-barleyglucan method was found to be simple to perform, to give excellent precision with good reproducibility between laboratories and to have a high correlation (r=0·903***) with the slower viscometric procedure currently used by the industry.
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Gili et al. (1987) studied this question.
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