Kinetic Investigation of Enzymatic Synthesis of Sucrose Fatty Acid Esters from Sucrose and Non-edible Rice Bran Fatty Acid
نویسندگان
چکیده
Enzymatic synthesis of sugar fatty acid esters were performed in an organic solvent using Immobilized Rhizomucor miehei (RMIM) lipase with sucrose and non-edible rice bran fatty acid as substrates. The maximum conversion of sucrose esters up to 78% obtained when sucrose and non-edible rice bran fatty acid were reacted in molar ratio of 1:8, using n-butanol as a solvent and 1% molecular sieves with 10% enzyme by wt of substrates at 50oC for 16 hours. This sucrose ester, have hydrophile-lipophile balance (HLB) 15.3. This HLB value is in the range suitable for use in detergency and solubilizers .
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Rice bran is the most important by-product of rice milling. It is a valuable source of edible oil in most rice producing countries. Rice bran oil is used in babyfood, biscuit, poultry, fish and farm animal feeds. The storage of rice bran without 'heat processing will result in hydrolysis and auto-oxidation of lipids, and to its decreased physicochemical, organoleptic and nutritional quality. Ri...
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