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Medium–Long–Medium and Medium–Long–Long Chain Acyl Glycerols from Beef Tallow and Caprylic Acid
Author(s) -
Lee K.T.,
Foglia T.A.,
Oh M.J.
Publication year - 2002
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.2002.tb09446.x
Subject(s) - chemistry , caprylic acid , fractionation , chromatography , transesterification , food science , monoglyceride , tallow , fraction (chemistry) , lipase , oleic acid , solvent , fatty acid , organic chemistry , biochemistry , methanol , enzyme
Beef tallow was fractionated either without or with solvent to obtain a highly enriched unsaturated fatty acid (USFA) fraction. Solvent fractionation at low temperature (‐18 °C) successfully fractionated USFA‐enriched triacylglycerol (TAG). The higher that the solute to solvent ratio was used for fractionation, the more weight yield of USFA‐enriched TAG from the liquid fractions was recovered during the fractionation. USFA‐enriched fraction was further esterified with lipase and medium chain fatty acid (caprylic acid). Through 2nd‐step transesterification, MLM (sn‐1‐medium‐2‐long‐3‐mediumTAG) type of structured lipids (SL) was produced in volume. Isolated SL was characterized by reverse‐phase HPLC, GC, and DSC. Synthesized SL in this study would be considered as a value‐added product from renewable animal fat for nutritionally beneficial applications in food.