ISO 7847:1987

$12.35

Animal and vegetable fats and oils — Determination of polyunsaturated fatty acids with a cis,cis 1,4-diene structure

Published By	Publication Date	Number of Pages
ISO	1987-12	8

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Categories: 67.200.10 - Animal and vegetable fats and oils, ISO

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Description

Specifies an enzymic method, which is not applicable to fats and oils containing polyunsaturated fatty acids of the omega-8 and omega-9 series or containing branched chain fatty acids. The method consists in saponifying of a test portion at ambient temperature followed by liberation of the fatty acids; enzymic oxidation of the fatty acids; measurement, at the wavelength of maximum absorbance (about 235 nm) of the absorbance due to these oxidized acids, while compensating for the absorbance due to any dienoic conjugated acids initially present in the sample.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	1987-12
Pages Count	8
Language	English
Edition	1
File Size	880.6 KB
ICS Codes	67.200.10 - Animal and vegetable fats and oils

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ISO 7847:1987

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