标准编号：ISO 17059:2019
中文名称：含油种子 气相色谱法分析用油的萃取和甘油三酸酯脂肪酸甲酯的制备（快速方法）
英文名称：Oilseeds — Extraction of oil and preparation of methyl esters of triglyceride fatty acids for analysis by gas chromatography (rapid method)
发布日期：2019-07
标准范围
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
(< 2 %), 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 1 %. This difference was observed in Reference [6] and could be due to the partial extraction of the oil from the sample (yield around 70 %). 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.
立即下载标准文件