Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis

Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis

A mycelial lipase from Rhizopus rhizopodiformis was prepared in fragment form. The lipase was examined to catalyze the alcoholysis of palm oil mid-fraction (PMF) in organic solvents. High percentage conversions of PMF to alkyl esters were achieved when methanol or propanol was used as acyl acceptor....

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Main Authors: Basri, Mahiran, Heng, A. C., Abdul Razak, Che Nyonya, Wan Yunus, Wan Md. Zin, Ahmad @ Ayob, Mansor, Raja Abdul Rahman, Raja Noor Zaliha, Ampon, Kamaruzaman, Salleh, Abu Bakar
Format: Article
Language:English
Published: AOCS Press 1997
Online Access:http://psasir.upm.edu.my/id/eprint/36007/
http://psasir.upm.edu.my/id/eprint/36007/
http://psasir.upm.edu.my/id/eprint/36007/
http://psasir.upm.edu.my/id/eprint/36007/1/Alcoholysis%20of%20palm%20oil%20mid-fraction%20by%20lipase%20from%20Rhizopus%20rhizopodiformis.pdf
id upm-36007
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spelling upm-360072016-05-17T07:06:35Z http://psasir.upm.edu.my/id/eprint/36007/ Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis Basri, Mahiran Heng, A. C. Abdul Razak, Che Nyonya Wan Yunus, Wan Md. Zin Ahmad @ Ayob, Mansor Raja Abdul Rahman, Raja Noor Zaliha Ampon, Kamaruzaman Salleh, Abu Bakar A mycelial lipase from Rhizopus rhizopodiformis was prepared in fragment form. The lipase was examined to catalyze the alcoholysis of palm oil mid-fraction (PMF) in organic solvents. High percentage conversions of PMF to alkyl esters were achieved when methanol or propanol was used as acyl acceptor. Of the two most prevalent fatty acids in PMF, palmitic acid seemed to be preferred over oleic acid in the formation of methyl and propyl esters. The optimal ratio of oil to methanol in the alcoholysis reaction is 1 to 2 moles. The lipase exhibited high alcoholysis activities in nonpolar solvents (log P>2), such as hexane, benzene, toluene, and heptane. The enzyme showed exceptionally high thermostability. AOCS Press 1997 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36007/1/Alcoholysis%20of%20palm%20oil%20mid-fraction%20by%20lipase%20from%20Rhizopus%20rhizopodiformis.pdf Basri, Mahiran and Heng, A. C. and Abdul Razak, Che Nyonya and Wan Yunus, Wan Md. Zin and Ahmad @ Ayob, Mansor and Raja Abdul Rahman, Raja Noor Zaliha and Ampon, Kamaruzaman and Salleh, Abu Bakar (1997) Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis. Journal of the American Oil Chemists' Society, 74 (2). pp. 113-116. ISSN 0003-021X; ESSN: 1558-9331 http://link.springer.com/article/10.1007%2Fs11746-997-0154-5 10.1007/s11746-997-0154-5
repository_type Digital Repository
institution_category Local University
institution Universiti Putra Malaysia
building UPM Institutional Repository
collection Online Access
language English
description A mycelial lipase from Rhizopus rhizopodiformis was prepared in fragment form. The lipase was examined to catalyze the alcoholysis of palm oil mid-fraction (PMF) in organic solvents. High percentage conversions of PMF to alkyl esters were achieved when methanol or propanol was used as acyl acceptor. Of the two most prevalent fatty acids in PMF, palmitic acid seemed to be preferred over oleic acid in the formation of methyl and propyl esters. The optimal ratio of oil to methanol in the alcoholysis reaction is 1 to 2 moles. The lipase exhibited high alcoholysis activities in nonpolar solvents (log P>2), such as hexane, benzene, toluene, and heptane. The enzyme showed exceptionally high thermostability.
format Article
author Basri, Mahiran
Heng, A. C.
Abdul Razak, Che Nyonya
Wan Yunus, Wan Md. Zin
Ahmad @ Ayob, Mansor
Raja Abdul Rahman, Raja Noor Zaliha
Ampon, Kamaruzaman
Salleh, Abu Bakar
spellingShingle Basri, Mahiran
Heng, A. C.
Abdul Razak, Che Nyonya
Wan Yunus, Wan Md. Zin
Ahmad @ Ayob, Mansor
Raja Abdul Rahman, Raja Noor Zaliha
Ampon, Kamaruzaman
Salleh, Abu Bakar
Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis
author_facet Basri, Mahiran
Heng, A. C.
Abdul Razak, Che Nyonya
Wan Yunus, Wan Md. Zin
Ahmad @ Ayob, Mansor
Raja Abdul Rahman, Raja Noor Zaliha
Ampon, Kamaruzaman
Salleh, Abu Bakar
author_sort Basri, Mahiran
title Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis
title_short Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis
title_full Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis
title_fullStr Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis
title_full_unstemmed Alcoholysis of palm oil mid-fraction by lipase from Rhizopus rhizopodiformis
title_sort alcoholysis of palm oil mid-fraction by lipase from rhizopus rhizopodiformis
publisher AOCS Press
publishDate 1997
url http://psasir.upm.edu.my/id/eprint/36007/
http://psasir.upm.edu.my/id/eprint/36007/
http://psasir.upm.edu.my/id/eprint/36007/
http://psasir.upm.edu.my/id/eprint/36007/1/Alcoholysis%20of%20palm%20oil%20mid-fraction%20by%20lipase%20from%20Rhizopus%20rhizopodiformis.pdf
first_indexed 2018-09-07T16:27:23Z
last_indexed 2018-09-07T16:27:23Z
_version_ 1610966781264920576

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