Abstract
A pilot-plant procedure is described whereby marine oils with low to medium iodine values can be converted into fractions of methyl esters of denned fatty acid composition. Three major fractions were obtained having 61% saturated, 73% monounsaturated, and 72% polyunsaturated esters, respectively.Methyl esters were produced continuously and glycerol separated by centrifuge, the shorter chain-length esters distilled under vacuum and the remainder countercurrently fractionated with nitromethane. By cooling the nitromethane-rich raffinate, a highly unsaturated ester concentrate was obtained. Gas–liquid chromatography was used to follow the efficiency of the various steps.
Publisher
Canadian Science Publishing
Cited by
3 articles.
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