African Journal of Chemistry
African Journal of Chemistry Vol. 1 (1), pp. 025-028, October, 2013. © International Scholars Journals
Full Length Research Paper
Characteristics of lipase isolated from coconut (Cocos nucifera linn) seed under different nutrient treatments
B. O. Ejedegba1*, E. C. Onyeneke2 and P. O. Oviasogie1
*Corresponding author. E-mail: philipoviasogie5@yahoo.com.
1Chemistry Division Nigerian Institute for Oil Palm Research, P.M.B. 1030, Benin City, Nigeria. 2Department of Biochemistry, University of Benin, P.M.B. 1154, Benin City Nigeria.
Accepted 31 July, 2013
Abstract
Lipase (triacyglycerol acyl hydrolase, E. C. 3.1.1.3) activity was demonstrated on acetone powder prepa-red from coconut seeds, under different nutrients condition. Conversion of the free fatty acid released to copper salt enabled the activity of the crude enzyme extract on coconut oil, triolein, tripalmitine and olive oil to be determined colorimetrically. Lipase from coconut plant grown under complete nutrient conditions showed high affinity for the native substrate coconut oil. The enzyme acted maximally at 35°C and had a broad optimum pH of 7.5 – 8.5.
Key words: Lipase activity, coconut oil triolein, tripalmitine.
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