Results 171 to 180 of about 796 (203)
Some of the next articles are maybe not open access.
Enzymatic glycerolysis of a triglyceride in aqueous and nonaqueous microemulsions
Journal of the American Oil Chemists' Society, 1989AbstractEnzymatic solvolysis of a model triglyceride, palm oil, was performed in microemulsions containing isooctane, sodiumbis(2‐ethylhexyl)sulfosuccinate (AOT), palm oil and a combination of water and glycerol as the polar component. Using a 1,3‐specific lipase both hydrolysis, leading to the formation of fatty acid and one mole of monoglyceride, and
Krister Holmberg +2 more
openaire +1 more source
Enzymatic Glycerolysis of Palm and Palm Kernel Oils
Chemical Engineering Communications, 2005Abstract Glycerolysis of palm and palm kernel oils were carried out using commercial lipases from Candida antarctica (Novozym 435) and Mucor miehei (Novozym 388) as catalyst (500 units lipase/g oil) at 40°C and with an oil:glycerol molar ratio of 1:2 in a solvent-free system.
Melek Tu¨ter, H. AyŞe Aksoy
openaire +1 more source
High‐yield enzymatic glycerolysis of fats and oils
Journal of the American Oil Chemists' Society, 1991Several triglyceride fats and oils were reacted with glycerol using lipase as catalyst. A batch system with magnetic stirring was used without the addition of any solvents or emulsifiers. In all cases a mixture of mono‐, di‐ and triglycerides was obtained.
Gerald P. McNeill +2 more
openaire +1 more source
Glycerolysis of marine oils and the preparation of acetylated monoglycerides
Journal of the American Oil Chemists' Society, 1960ConclusionsThe glycerolysis reaction was applied to menhaden, tuna, herring, sardine, and salmon‐egg oils. Optimum reaction time for the preparation of α‐monoglycerides was found to vary, reproducibly, from 45 to 60 min., depending on the particular kind of marine oil employed.
Edward H. Gruger +2 more
openaire +1 more source
Biotechnology Letters, 1999
Palm and palm kernel oils were reacted with glycerol using a 1,3-positional specific commercial lipase from Rhizopus delemar, Lipase D ‘Amano’ 100 (40 °C, 500 Units lipase/g oil) in the absence of solvent. After 24 h, partial acylglycerols contents of the glycerolysis products of palm and palm kernel oils were 66% (w/w) and 64% (w/w), respectively. The
Melek Tüter +4 more
openaire +1 more source
Palm and palm kernel oils were reacted with glycerol using a 1,3-positional specific commercial lipase from Rhizopus delemar, Lipase D ‘Amano’ 100 (40 °C, 500 Units lipase/g oil) in the absence of solvent. After 24 h, partial acylglycerols contents of the glycerolysis products of palm and palm kernel oils were 66% (w/w) and 64% (w/w), respectively. The
Melek Tüter +4 more
openaire +1 more source
Glycerolysis of Esters with Candida antarctica Lipase B in Glycerol
Journal of Advanced Chemical Engineering, 2011Glycerol was successfully used as a green solvent and as the acyl acceptor in the transesterification of amyl and benzyl acetate using immobilized Candida antarctica lipase B. It was found that increasing either the reaction temperature or the enzyme to substrate ratio increased the conversion of both esters.
Adi Wolfson +4 more
openaire +1 more source
Production of diacylglycerols through low-temperature chemical glycerolysis
Food Chemistry, 2010Abstract The aim of this study was to produce diacylglycerols (DAG) by chemical glycerolysis of soybean oil at low temperatures. Solvents and low-frequency ultrasonic irradiation were introduced to enhance the reaction. Three operation modes, namely mechanical stirring, magnetic stirring and ultrasonic irradiation, were compared.
Zhong, Nanjing +5 more
openaire +2 more sources
Diacylglycerol‐enriched oil production using chemical glycerolysis
European Journal of Lipid Science and Technology, 2016Diacylglycerol (DAG)‐enriched oils have been drawing increased global attention from researchers and food manufacturers. The production of DAG‐enriched oils have been investigated extensively because of its health benefit. DAG is commonly produced chemically through glycerolysis processes.
null Satriana +5 more
openaire +1 more source
Enzymatic Production of Monoacylglycerols with Camellia Oil by the Glycerolysis Reaction
Journal of the American Oil Chemists' Society, 2010AbstractThree commercial immobilized lipases, Lipozyme RM IM, Lipozyme TL IM and Novozym 435, were screened for the production of monoacylglycerols (MAG) by glycerolysis of camellia oil in a solvent medium of tert‐butyl alcohol. Novozym 435 showed the best performance and was selected to catalyze the glycerolysis reaction. Different reaction conditions
Fan‐kui Zeng +5 more
openaire +1 more source
Kinetic modeling of lipase-catalyzed glycerolysis of olive oil
Biochemical Engineering Journal, 2011Abstract This work reports experimental data and the kinetic modeling of monoacylglycerols (MAG) and diacylglycerols (DAG) production from olive oil using a commercial immobilized lipase (Novozym 435) and tert-butanol as solvent. The kinetic modeling presented is based on the ordered-sequential Bi Bi mechanism considering glycerolysis and hydrolysis ...
Fernando Voll +6 more
openaire +1 more source