Fruits, vegetables and derived products -- Determination of sorbic acid content

Document Number: ISO 5519:1978
File Size: 1.18 MB
Language: English
Provider: ANSI
Shipping: Available for download - Link will be provided in My ComplianceOnline section

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The method consists in homogenizing the product, followed by quantitative entraining, by steam, of the acid present in a test portion, determination of the acid in the destillate obtained, either by spectrophotometry in the ultra-violet range (technique A) or by measuring by photocolorimetry or by spectrophotometry the pink colour obtained after oxidation by chromic acid and then treatment with thiobarbituric acid (technique B).

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