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An ultra-fast system for hop analysis. I. Determination of alpha-acids and moisture by near-infra-red reflectance spectroscopy


An ultra-fast system for hop analysis. I. Determination of alpha-acids and moisture by near-infra-red reflectance spectroscopy



Brewers' Digest 56(6): 18-19, 41



Alpha-acids were determined simultaneously with a Technicon 1A 400 InfraAnalyser linked to a HP-85 desk-top computer. The results for alpha-acids correlated well with those of the standard conductometric Pb salt method and the results for H2O correlated well with those of the standard oven-drying method. The reproducibility of the method was improved by fine-grinding of the samples.

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Accession: 000820510

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