ISO 16931:2009

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Animal and vegetable fats and oils — Determination of polymerized triacylglycerols by high-performance size-exclusion chromatography (HPSEC)

Published By	Publication Date	Number of Pages
ISO	2009-04	14

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

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Description

ISO 16931:2009 specifies a method using high-performance size-exclusion chromatography (HPSEC) to determine the contents, as mass fractions, of polymerized triacylglycerols (PTAGs) in oils and fats which contain at least 3 % (from peak areas) of these polymers. PTAGs (strictly speaking dimeric and oligomeric triacylglycerols) are formed during the heating of fats and oils, and thus, the method serves to assess the thermal deterioration of frying fats after use.

This method is applicable to frying fats and fats and oils that have been thermally treated, provided that the content of PTAGs is at least 3 %. It can also be applied to the determination of polymers in fats for animal feedstuffs, although in this case, the extraction method used can have an influence on the result.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	2009-04
Pages Count	14
Language	France
Edition	2
File Size	163.8 KB
ICS Codes	67.200.10 - Animal and vegetable fats and oils

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ISO 16931:2009

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