The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions

Anabas testudineus, also known as Climbing Perch is a freshwater fish which originated from India and mostly inhabited in rivers and lakes. It came from family ‘Anabantidae’ and in Malaysia it is called ‘ikan puyu’. A. testudineus is a very hardy fish and is having high commerial value. Cholinestera...

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Main Author: Basirun, Ain Aqilah
Format: Project Paper Report
Language:English
Published: 2015
Online Access:http://psasir.upm.edu.my/id/eprint/78200/1/FBSB%202015%2049%20IR.pdf
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author Basirun, Ain Aqilah
author_facet Basirun, Ain Aqilah
author_sort Basirun, Ain Aqilah
collection UPM
description Anabas testudineus, also known as Climbing Perch is a freshwater fish which originated from India and mostly inhabited in rivers and lakes. It came from family ‘Anabantidae’ and in Malaysia it is called ‘ikan puyu’. A. testudineus is a very hardy fish and is having high commerial value. Cholinesterase (ChE) was purified from the muscle extracts of A. testudineus through ion-exchange chromatography (DEAE-cellulose). In this study, ChE was partially purified with a purification folding and recovery yield of 2.012 and 14.46% respectively. Native-PAGE analysis was done to show the degree of purity. Optimisation study of muscle ChE was carried out shows that for muscle ChE, the specific substrate is propionylthiocholine iodide (PTC) at 2.5 mM, with optimum temperature and pH of 30°C and pH 9.0 respectively using Tris-HCl buffer. Metal ions inhibition study has shown that mercury had inhibited at highest percentage of enzyme activity, at 93.4%. Half-maximal inhibitory concentration by mercury obtained in this study was at 0.9752 mg/L. Hence, the ion-exchange chromatography shows that it is one of the useful purification methods to purify ChE from muscle of A. testudineus and ChE purified from this can be a useful biosensor for metal ion pollution monitoring in aquatic system.
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spelling upm.eprints-782002020-06-26T01:07:29Z http://psasir.upm.edu.my/id/eprint/78200/ The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions Basirun, Ain Aqilah Anabas testudineus, also known as Climbing Perch is a freshwater fish which originated from India and mostly inhabited in rivers and lakes. It came from family ‘Anabantidae’ and in Malaysia it is called ‘ikan puyu’. A. testudineus is a very hardy fish and is having high commerial value. Cholinesterase (ChE) was purified from the muscle extracts of A. testudineus through ion-exchange chromatography (DEAE-cellulose). In this study, ChE was partially purified with a purification folding and recovery yield of 2.012 and 14.46% respectively. Native-PAGE analysis was done to show the degree of purity. Optimisation study of muscle ChE was carried out shows that for muscle ChE, the specific substrate is propionylthiocholine iodide (PTC) at 2.5 mM, with optimum temperature and pH of 30°C and pH 9.0 respectively using Tris-HCl buffer. Metal ions inhibition study has shown that mercury had inhibited at highest percentage of enzyme activity, at 93.4%. Half-maximal inhibitory concentration by mercury obtained in this study was at 0.9752 mg/L. Hence, the ion-exchange chromatography shows that it is one of the useful purification methods to purify ChE from muscle of A. testudineus and ChE purified from this can be a useful biosensor for metal ion pollution monitoring in aquatic system. 2015-06 Project Paper Report NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/78200/1/FBSB%202015%2049%20IR.pdf Basirun, Ain Aqilah (2015) The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions. [Project Paper Report]
spellingShingle Basirun, Ain Aqilah
The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions
title The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions
title_full The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions
title_fullStr The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions
title_full_unstemmed The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions
title_short The assessment of cholinesterase from the muscle of Anabas testudineus as detection of metal ions
title_sort assessment of cholinesterase from the muscle of anabas testudineus as detection of metal ions
url http://psasir.upm.edu.my/id/eprint/78200/1/FBSB%202015%2049%20IR.pdf
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