Melt crystallization kinetics for enrichment of highly unsaturated fatty acid fractions based on Linseed oil

  • Naturally occurring plant based fats and oils have a huge potential as renewable resources to synthesize chemically new products apart from being widely used as ingredients in various kind of food and cosmetics. Oils are triglycerides which are basically tri-esters made of glycerol and three fatty acids. The latter finds application on one hand as raw material for the polymerization of epoxy resins whereas on the other in the manufacturing of biodiesel amongst others. Melt crystallization as a method to enrich a fatty acid mixture with higher unsaturated fractions is becoming increasingly established. A polyunsaturated fatty acid mixture with high concentration of linolenic acid (C 18:3) was chosen for this work. This linolenic oil fatty acid rich mixture was subjected to different temperature profiles in order to optimize maximum yield of unsaturated fatty acid in the mother liquor post isothermal centrifugal separation. The influence of the temperature profile on the quality of the desired product was thereby investigated. ToNaturally occurring plant based fats and oils have a huge potential as renewable resources to synthesize chemically new products apart from being widely used as ingredients in various kind of food and cosmetics. Oils are triglycerides which are basically tri-esters made of glycerol and three fatty acids. The latter finds application on one hand as raw material for the polymerization of epoxy resins whereas on the other in the manufacturing of biodiesel amongst others. Melt crystallization as a method to enrich a fatty acid mixture with higher unsaturated fractions is becoming increasingly established. A polyunsaturated fatty acid mixture with high concentration of linolenic acid (C 18:3) was chosen for this work. This linolenic oil fatty acid rich mixture was subjected to different temperature profiles in order to optimize maximum yield of unsaturated fatty acid in the mother liquor post isothermal centrifugal separation. The influence of the temperature profile on the quality of the desired product was thereby investigated. To examine the exact composition of the resulting product several analytical methods like Differential Scanning Calorimetry (DSC) and Gas Chromatography (GC) were developed and performed. Product compositions with a total saturated content (C16:0 - palmitic acid and C18:0 - stearic acid) of below 3% was achieved successfully.show moreshow less

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Metadaten
Author: Sunanda Dasgupta, Nadine Dreiack, Peter Ay
URL:http://www.jerad.org/ppapers/dnload.php?vl=11&is=1&st=1
ISSN:0973-6921
ISSN:2319-5983
Title of the source (English):Journal of Environmental Research And Development
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2016
Tag:differential scanning calorimetry; gas chromatography; linseed oil; melt crystallization; poly-unsaturated fatty acid mixture
Volume/Year:11
Issue number:1
First Page:1
Last Page:6
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Aufbereitungstechnik und Sekundärrohstofftechnologie (ehemals)
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