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sklademVydáno: 1989-01-31
BS 684-2.43:1988
Methods of analysis of fats and fatty oils. Other methods Determination of polyunsaturated fatty acids with a cis,cis 1,4-diene structure
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| Označení normy: | BS 684-2.43:1988 |
| Počet stran: | 12 |
| Vydáno: | 1989-01-31 |
| ISBN: | 0 580 16963 4 |
| Status: | Standard |
DESCRIPTION
BS 684-2.43:1988
This standard BS 684-2.43:1988 Methods of analysis of fats and fatty oils. Other methods is classified in these ICS categories:
- 67.200.10 Animal and vegetable fats and oils
This International Standard specifies an enzymic method for the determination in animal and vegetable fats and oils of polyunsaturated fatty acids with a cis,cis 1,4-diene structure, in practice those of the linoleic (9,12-octadecadienoic) and linolenic (9,12,15-octadecatrienoic) acid series having ω3 and ω6 unsaturation. The structure is
It is not applicable to fats and oils containing polyunsaturated fatty acids of the ω8 and ω9 series or containing branched chain fatty acids.
Saponification then enzymic oxidation of the fatty acids. Measurement of their UV absorbance.