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Abstract

Lipase from the hepatopancreas of Tra catfish (Pangasius) was precipitated by ammonium sulfate fractionation, purified by ion-exchange chromatography on DEAE cellulose and gel filtration on Sephadex G- 75. On substrate triolein, purified lipase has Km= 1.381 mM and Vmax= 0.063 mM/min. The lipase was stable at a pH range of 7.0- 9.0 and in temperatures of 35-50°C. At 500C the enzyme loosed 44,7% activity after 120 min. The enzyme was specific for the α- positions (1, 3) of triglyceride. In bile salt solution of 0.015M NaTC, lipase activity of the enzyme increased in 3.08 folds in comparison of sample without NaTC.



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Issue: Vol 16 No 4 (2013)
Page No.: 85-91
Published: Dec 31, 2013
Section: Engineering and Technology - Research article
DOI: https://doi.org/10.32508/stdj.v16i4.1588

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Vuong, T., Tran, L., & Luu, D. (2013). Biochemical properties and positional specificity of Lipase from hepatopancreas of Tra catfish (Pangasius). Science and Technology Development Journal, 16(4), 85-91. https://doi.org/https://doi.org/10.32508/stdj.v16i4.1588

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