OS GSO ISO 15788-2:2007
ISO 15788-2:2003
Omani Standard
Current Edition
·
Approved on
26 September 2007
Animal and vegetable fats and oils – Determination of stigmastadienes in vegetable oil Part 2 : method using HPLC
OS GSO ISO 15788-2:2007 Files
English
10 Pages
Current Edition
Reference Language
OMR
30.98
OS GSO ISO 15788-2:2007 Scope
This part of GSO/ISO 15788 specifies a method for the determination of
steradienes, especially stigmastadienes. teradienes are formed by dehydration of
sterols during bleaching and also partially during steam washing and
deodorization. The method is also suitable as a screening method to detect the
presence of refined vegetable oils in virgin oils such as virgin olive oil.
NOTE GSO/ISO 15788-1 is the reference method for the determination of
stigmastadienes in vegetable oils whilst this part of ISO 15788 can be used as a
rapid screening method. In view of the precision of this method (see Annex A),
samples of virgin olive oils close to the limit adopted by international regulations
(IOOC, EC) can be verified by the GLC method given in GSO/ISO 15788-1.
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