PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159

ABSTRACT A study was caffied out to characterize the cocoa lipase from cocoa beans (Theobroma cacao, L.) of clone PBC 159. The optimum temperature of cocoa lipase was 30-40 .C and the pH optimum was 7.0-8.0. The moleculer weight of the lipase enzyme was in between 45-66 kOa. The results indicate tha...

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Main Author: Perpustakaan UGM, i-lib
Format: Article
Published: [Yogyakarta] : Universitas Gadjah Mada 2008
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author Perpustakaan UGM, i-lib
author_facet Perpustakaan UGM, i-lib
author_sort Perpustakaan UGM, i-lib
collection UGM
description ABSTRACT A study was caffied out to characterize the cocoa lipase from cocoa beans (Theobroma cacao, L.) of clone PBC 159. The optimum temperature of cocoa lipase was 30-40 .C and the pH optimum was 7.0-8.0. The moleculer weight of the lipase enzyme was in between 45-66 kOa. The results indicate that Kmvalue for cocoa bean lipase was 2.63 mM, when trimyristin was used as a substrate. The incubation of cocoa bean lipase with triolein and tributyrin (as substrate) yielded Kmof 11.24 and 35.71 mM, respectively. The Vmaxvalue obtained from the incubation of the lipase with a wide range of substrates, including tributyrin, trimyristin and triolein, are expressed as pmole acidlmin/mg protein for cocoa lipase. Vmax values decreased with the increase in the triacylglycerol chain-length, with Vmax values of 27.78, 13.16 and 11.63 pmole acidlmin/mg protein when incubated with tributyrin, trimyristin and triolein, respectively. Inhibition of lipase occurred in the presence of diisopropyl fIourophosphate, Nbromosuccinimide and 5,5-dithiobis-(-2-nitrobenzoic acid). Keywords: characterization, lipase, cocoa beans
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spelling oai:generic.eprints.org:279432014-06-18T00:25:00Z https://repository.ugm.ac.id/27943/ PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159 Perpustakaan UGM, i-lib Jurnal i-lib UGM ABSTRACT A study was caffied out to characterize the cocoa lipase from cocoa beans (Theobroma cacao, L.) of clone PBC 159. The optimum temperature of cocoa lipase was 30-40 .C and the pH optimum was 7.0-8.0. The moleculer weight of the lipase enzyme was in between 45-66 kOa. The results indicate that Kmvalue for cocoa bean lipase was 2.63 mM, when trimyristin was used as a substrate. The incubation of cocoa bean lipase with triolein and tributyrin (as substrate) yielded Kmof 11.24 and 35.71 mM, respectively. The Vmaxvalue obtained from the incubation of the lipase with a wide range of substrates, including tributyrin, trimyristin and triolein, are expressed as pmole acidlmin/mg protein for cocoa lipase. Vmax values decreased with the increase in the triacylglycerol chain-length, with Vmax values of 27.78, 13.16 and 11.63 pmole acidlmin/mg protein when incubated with tributyrin, trimyristin and triolein, respectively. Inhibition of lipase occurred in the presence of diisopropyl fIourophosphate, Nbromosuccinimide and 5,5-dithiobis-(-2-nitrobenzoic acid). Keywords: characterization, lipase, cocoa beans [Yogyakarta] : Universitas Gadjah Mada 2008 Article NonPeerReviewed Perpustakaan UGM, i-lib (2008) PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11006
spellingShingle Jurnal i-lib UGM
Perpustakaan UGM, i-lib
PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159
title PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159
title_full PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159
title_fullStr PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159
title_full_unstemmed PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159
title_short PARTIAL CHARACTERIZATION OF LIPASE FROM COCOA BEANS (Theobroma cacao. L.) OF CLONE PBC 159
title_sort partial characterization of lipase from cocoa beans theobroma cacao l of clone pbc 159
topic Jurnal i-lib UGM
work_keys_str_mv AT perpustakaanugmilib partialcharacterizationoflipasefromcocoabeanstheobromacacaolofclonepbc159