BS EN ISO 17059:2019 - Oilseeds. Extraction of oil and preparation of methyl esters of triglyceride fatty acids for analysis by gas chromatography (Rapid method)

BS EN ISO 17059:2019

Oilseeds. Extraction of oil and preparation of methyl esters of triglyceride fatty acids for analysis by gas chromatography (Rapid method)

Status : Current   Published : September 2019

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This document specifies a rapid method for extraction of oil and for preparation of the methyl esters of fatty acids. The methyl esters thus obtained can be used for gas chromatography.

This document is applicable to the following oilseeds: rape and mustard with low erucic acid content (<Ã?Æ?ââ?¬Å¡Ã?â??Ã? 2Ã?Æ?ââ?¬Å¡Ã?â??Ã? %), sunflower, soya beans, linseed.

NOTE

Applying this rapid method to high erucic acid content rapeseed leads to an overestimation of erucic acid content by approximately a mass fraction of 1Ã?Æ?ââ?¬Å¡Ã?â??Ã? %. This difference was observed in ReferenceÃ?Æ?ââ?¬Å¡Ã?â??Ã? [ 6] and could be due to the partial extraction of the oil from the sample (yield around 70Ã?Æ?ââ?¬Å¡Ã?â??Ã? %). High content of erucic acid in triglycerides could increase their solubility in hexane because of the lipophilic effect of the carbon long-chain (C22). However, as this effect was not checked on a large set of high erucic rapeseed samples, it is not appropriate to apply a correction factor to the erucic acid content when analysing high erucic acid rapeseed.




Standard NumberBS EN ISO 17059:2019
TitleOilseeds. Extraction of oil and preparation of methyl esters of triglyceride fatty acids for analysis by gas chromatography (Rapid method)
StatusCurrent
Publication Date17 September 2019
Normative References(Required to achieve compliance to this standard)ISO 664, ISO 12966-4
Informative References(Provided for Information)ISO 659:2009, ISO 5725-2:2019, ISO 5509:2000, ISO 542:1990, ISO 5725-1:1994, BS ISO 5725-2:2019, ISO 21294
ReplacesBS EN ISO 17059:2009
International RelationshipsEN ISO 17059:2019,ISO 17059:2019
Draft Superseded By18/30375458 DC
DescriptorsSpecimen preparation, Oilseeds, Vegetable oils, Extraction methods of analysis, Gas chromatography, Chemical analysis and testing, Methyl compounds, Fatty acids, Esters (carboxylic)
ICS67.200.20
Title in FrenchGraines oléagineuses. Extraction de l'huile et préparation des esters méthyliques d'acides gras de triglycérides pour analyse par chromatographie en phase gazeuse (Méthode rapide)
Title in GermanÖlsaaten. Extraktion von Öl und Herstellung von Methylester aus den Fettsäuren der Triglyceride für die Analyse durch Gaschromatographie (Schnellverfahren)
CommitteeAW/307
ISBN978 0 539 00460 1
PublisherBSI
FormatA4
DeliveryYes
Pages16
File Size1.422 MB
Price£130.00


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