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ISO 5519:1978 PDF
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Fruits, vegetables and derived products — Determination of sorbic acid content
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).
| Edition | 1978 |
|---|---|
| Published Date | 1978 |
| Published By | International Standardization Organisation |
| Page Count | 6 |
