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Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP

As well as for chemical and environmental reasons, acrylamide is widely used in many industrial applications. Due to its carcinogenicity and toxicity, its discharge into the environment causes adverse effects on humans and ecology alike. In this study, a novel acrylamide-degrading yeast has been iso...

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Główni autorzy: Rahim, M. B. H., Syed, Mohd. Arif, Abd. Shukor, Mohd. Yunus
Format: Artykuł
Język:English
Wydane: Wiley-VCH Verlag GmbH & Co. KGaA 2012
Dostęp online:http://psasir.upm.edu.my/id/eprint/22395/1/Isolation%20and%20characterization%20of%20an%20acrylamide.pdf
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spelling oai:psasir.upm.edu.my:22395 http://psasir.upm.edu.my/id/eprint/22395/ Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP Rahim, M. B. H. Syed, Mohd. Arif Abd. Shukor, Mohd. Yunus As well as for chemical and environmental reasons, acrylamide is widely used in many industrial applications. Due to its carcinogenicity and toxicity, its discharge into the environment causes adverse effects on humans and ecology alike. In this study, a novel acrylamide-degrading yeast has been isolated. The isolate was identified as Rhodotorula sp. strain MBH23 using ITS rRNA analysis. The results showed that the best carbon source for growth was glucose at 1.0% (w/v). The optimum acrylamide concentration, being a nitrogen source for cellular growth, was at 500 mg l–1. The highest tolerable concentration of acrylamide was 1500 mg l–1 whereas growth was completely inhibited at 2000 mg l–1. At 500 mg l–1, the strain MBH completely degraded acrylamide on day 5. Acrylic acid as a metabolite was detected in the media. Strain MBH23 grew well between pH 6.0 and 8.0 and between 27 and 30 °C. Amides such as 2-chloroacetamide, methacrylamide, nicotinamide, acrylamide, acetamide, and propionamide supported growth. Toxic heavy metals such as mercury, chromium, and cadmium inhibited growth on acrylamide. Wiley-VCH Verlag GmbH & Co. KGaA 2012-10 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/22395/1/Isolation%20and%20characterization%20of%20an%20acrylamide.pdf Rahim, M. B. H. and Syed, Mohd. Arif and Abd. Shukor, Mohd. Yunus (2012) Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP. Journal of Basic Microbiology, 52 (5). pp. 573-581. ISSN 0233-111X; ESSN: 1521-4028 http://onlinelibrary.wiley.com/doi/10.1002/jobm.201100116/abstract 10.1002/jobm.201100116
institution UPM IR
collection UPM IR
language English
description As well as for chemical and environmental reasons, acrylamide is widely used in many industrial applications. Due to its carcinogenicity and toxicity, its discharge into the environment causes adverse effects on humans and ecology alike. In this study, a novel acrylamide-degrading yeast has been isolated. The isolate was identified as Rhodotorula sp. strain MBH23 using ITS rRNA analysis. The results showed that the best carbon source for growth was glucose at 1.0% (w/v). The optimum acrylamide concentration, being a nitrogen source for cellular growth, was at 500 mg l–1. The highest tolerable concentration of acrylamide was 1500 mg l–1 whereas growth was completely inhibited at 2000 mg l–1. At 500 mg l–1, the strain MBH completely degraded acrylamide on day 5. Acrylic acid as a metabolite was detected in the media. Strain MBH23 grew well between pH 6.0 and 8.0 and between 27 and 30 °C. Amides such as 2-chloroacetamide, methacrylamide, nicotinamide, acrylamide, acetamide, and propionamide supported growth. Toxic heavy metals such as mercury, chromium, and cadmium inhibited growth on acrylamide.
format Article
author Rahim, M. B. H.
Syed, Mohd. Arif
Abd. Shukor, Mohd. Yunus
spellingShingle Rahim, M. B. H.
Syed, Mohd. Arif
Abd. Shukor, Mohd. Yunus
Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP
author_facet Rahim, M. B. H.
Syed, Mohd. Arif
Abd. Shukor, Mohd. Yunus
author_sort Rahim, M. B. H.
title Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP
title_short Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP
title_full Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP
title_fullStr Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP
title_full_unstemmed Isolation and characterization of an acrylamide-degrading yeast Rhodotorula sp. strain MBH23 KCTC 11960BP
title_sort isolation and characterization of an acrylamide-degrading yeast rhodotorula sp. strain mbh23 kctc 11960bp
publisher Wiley-VCH Verlag GmbH & Co. KGaA
publishDate 2012
url http://psasir.upm.edu.my/id/eprint/22395/1/Isolation%20and%20characterization%20of%20an%20acrylamide.pdf
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score 13.4562235

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