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).
Status: WithdrawnPublication date: 1978-09
Edition: 1Number of pages: 6
Technical Committee: ISO/TC 34/SC 3 Fruits and vegetables and their derived products
- ICS :
- 67.080.01 Fruits, vegetables and derived products in general
ISO 5519:1978Stage: 95.99
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