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New Findings on Carboxylic Ester Hydrolases Described by Investigators at Sardar Vallabhbhai National Institute of Technology (Immobilization of...

August 19, 2014



New Findings on Carboxylic Ester Hydrolases Described by Investigators at Sardar Vallabhbhai National Institute of Technology (Immobilization of Candida antarctica lipase onto cellulose acetate-coated Fe2O3 nanoparticles for glycerolysis of ...)

By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Enzymes and Coenzymes is the subject of a report. According to news reporting originating in Gujarat, India, by NewsRx journalists, research stated, "Candida antarctica lipase was covalently immobilized onto the surface of cellulose acetate-coated Fe2O3 nanoparticles. The characterizations of immobilized lipase were examined by Fourier transform infrared spectrophotometer (FTIR) and field emission gun-scanning electron microscopy (FEG-SEM)."

The news reporters obtained a quote from the research from the Sardar Vallabhbhai National Institute of Technology, "The immobilized lipase was assayed for production of monoglycerides (MG) and diglycerides (DG) by glycerolysis of olive oil in a solvent medium. The effect of various reaction conditions on the MG and DG production such as reaction time, temperature, the molar ratio of glycerol to oil and amount of immobilized lipase was investigated. The optimum condition for MG and DG production was found at 50 A degrees C temperature and 0.025 g of lipase with the molar ratio of glycerol to oil 1.5:1 in 5 h of reaction time. The effect of substrate concentration on enzymatic activity of the free and immobilized lipase showed the best fits to the Lineweaver-Burk plots. The K (m) and V (max) values of immobilized lipase were found to be 25mM and 0.58mM/min, whereas that for free lipase was 52.63mM and 1.75mM/min, respectively."

According to the news reporters, the research concluded: "The activation and deactivation energy was found to decrease for immobilization of lipase on cellulose acetate-coated Fe2O3 nanoparticles."

For more information on this research see: Immobilization of Candida antarctica lipase onto cellulose acetate-coated Fe2O3 nanoparticles for glycerolysis of olive oil. Korean Journal of Chemical Engineering, 2014;31(7):1225-1232. Korean Journal of Chemical Engineering can be contacted at: Korean Institute Chemical Engineers, F.5, 119, Anam-Ro, Seongbuk-Gu, Seoul 136-075, South Korea. (Springer - www.springer.com; Korean Journal of Chemical Engineering - www.springerlink.com/content/0256-1115/)

Our news correspondents report that additional information may be obtained by contacting A.K. Singh, Sardar Vallabhbhai Natl Inst Technol, Dept. of Chem Engn, Surat 395007, Gujarat, India (see also Enzymes and Coenzymes).

Keywords for this news article include: Asia, India, Lipase, Gujarat, Nanoparticle, Nanotechnology, Emerging Technologies, Enzymes and Coenzymes, Carboxylic Ester Hydrolases

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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