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DIN EN ISO 16931:2009-08

DIN EN ISO 16931:2009-08

Animal and vegetable fats and oils - Determination of polymerized triacylglycerols by high-performance size-exclusion chromatography (HPSEC) (ISO 16931:2009); German version EN ISO 16931:2009



This International Standard 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 Info

Author DIN
Published by DIN
Document type Standard
Format File
ICS 67.200.10 : Oilseeds
Number of pages 16
Replace DIN EN ISO 16931 (2002-04)
Cross references BVL L 13.00-23 (2012-01), IDT
Year 2009
Document history DIN EN ISO 16931 (2009-08)
Country Germany
Keyword EN ISO 16931;16931

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