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

Autor:	Raja Nor Zaliha Raja Abdul Rahman, Abu Bakar Salleh, Mahiran Basri, Mansor Bin Ahmad, C. N. A. Razak, Wan Md Zin Wan Yunus, A. C. Heng, K. Ampon
Rok vydání:	1997
Předmět:	biology General Chemical Engineering Organic Chemistry Triacylglycerol lipase Toluene Palmitic acid Hexane Propanol Oleic acid chemistry.chemical_compound chemistry biology.protein Organic chemistry Methanol Lipase
Zdroj:	Journal of the American Oil Chemists' Society. 74:113-116
ISSN:	0003-021X
DOI:	10.1007/s11746-997-0154-5
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::50a7292fedce9334b1ac470a9c7c7b5a https://doi.org/10.1007/s11746-997-0154-5 Zobrazit plný text záznamu Full text from SpringerLink Plný text