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Lipid profile of process streams of palm oil mill
Author(s) -
George S.,
Arumughan C.
Publication year - 1992
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02635902
Subject(s) - fatty acid , diacylglycerol kinase , chemistry , monoacylglycerol lipase , food science , glycolipid , palm oil , pulp and paper industry , refining (metallurgy) , phospholipid , raw material , biochemistry , chromatography , organic chemistry , enzyme , membrane , endocannabinoid system , receptor , protein kinase c , engineering
During palm oil extraction, oil loss occurs mainly at three stages of processing, namely sterilization, pressing and clarification. Samples from a semi‐commercial palm oil mill were analyzed for their lipid composition (triacylglycerol, diacylglycerol, monoacylglycerol, free fatty acid, phospholipid and glycolipid contents and fatty acid compositions of these lipid classes) and compared with the end product, viz. , raw palm oil. The results indicate significant variations between the samples with respect to oil quality and lipid profile. Data relating to the lipid classes showed that sterilizer condensate had the highest levels of free fatty acids (24%), followed by press fiber (12.5%) and sludge effluent (10.9%), as compared to raw oil (1.5%). Diacylglycerol and monoacylglycerol contents were also markedly higher for these streams. Press fiber was characterized by extremely high proportions of phospholipids and glycolipids. Distribution of fatty acids (16:0, 18:1, 18:2 and 18:3) also varied among lipid classes of the process streams, particularly between polar lipids. This paper discusses the compositional aspects of lipids relating to quality of oils of the palm oil mill streams.