Production of Poly-α-hydroxybutyrate (PHB) from Sago Starch by The Native Isolate Bacillus megaterium PSA10

A new bacterial strain that produces amylase and poly-α-hidroxybutyrate (PHB) using sago starch as carbon source was characterized and identified to be member of the Bacillus megaterium group based on phenotypic characteristics and 16S rDNA gene sequences. Amylase activity was determined s...

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Main Authors: Nur Arfa Yanti, Langkah Sembiring, Sebastian Margino
Format: Article
Language:English
Published: Universitas Gadjah Mada, Yogyakarta 2006-06-01
Series:Indonesian Journal of Biotechnology
Online Access:https://jurnal.ugm.ac.id/ijbiotech/article/view/7559
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author Nur Arfa Yanti
Langkah Sembiring
Sebastian Margino
author_facet Nur Arfa Yanti
Langkah Sembiring
Sebastian Margino
author_sort Nur Arfa Yanti
collection DOAJ
description A new bacterial strain that produces amylase and poly-α-hidroxybutyrate (PHB) using sago starch as carbon source was characterized and identified to be member of the Bacillus megaterium group based on phenotypic characteristics and 16S rDNA gene sequences. Amylase activity was determined spectrophotometrically on the basis of substrate concentration reduction. PHB production was quantified with UV spectrophotometer. The polymer produced by B. megaterium PSA10 was identified by Fourier Transform Infrared spectroscopy (FTIR). The result of the study showed that the amylase specific activity B. megaterium PSA10 was 593,61 DUN/mg protein and PHB production from sago starch was 52,28 % of cell dry weight (CDW). FTIR analysis of the polymer indicated that the strain B.megaterium PSA10 was a potent PHB producer.
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spelling doaj.art-6d210ad9ff94474ea44e66d4cae1db252022-12-21T23:49:09ZengUniversitas Gadjah Mada, YogyakartaIndonesian Journal of Biotechnology0853-86542089-22412006-06-0111110.22146/ijbiotech.75596360Production of Poly-α-hydroxybutyrate (PHB) from Sago Starch by The Native Isolate Bacillus megaterium PSA10Nur Arfa YantiLangkah SembiringSebastian MarginoA new bacterial strain that produces amylase and poly-α-hidroxybutyrate (PHB) using sago starch as carbon source was characterized and identified to be member of the Bacillus megaterium group based on phenotypic characteristics and 16S rDNA gene sequences. Amylase activity was determined spectrophotometrically on the basis of substrate concentration reduction. PHB production was quantified with UV spectrophotometer. The polymer produced by B. megaterium PSA10 was identified by Fourier Transform Infrared spectroscopy (FTIR). The result of the study showed that the amylase specific activity B. megaterium PSA10 was 593,61 DUN/mg protein and PHB production from sago starch was 52,28 % of cell dry weight (CDW). FTIR analysis of the polymer indicated that the strain B.megaterium PSA10 was a potent PHB producer.https://jurnal.ugm.ac.id/ijbiotech/article/view/7559
spellingShingle Nur Arfa Yanti
Langkah Sembiring
Sebastian Margino
Production of Poly-α-hydroxybutyrate (PHB) from Sago Starch by The Native Isolate Bacillus megaterium PSA10
Indonesian Journal of Biotechnology
title Production of Poly-α-hydroxybutyrate (PHB) from Sago Starch by The Native Isolate Bacillus megaterium PSA10
title_full Production of Poly-α-hydroxybutyrate (PHB) from Sago Starch by The Native Isolate Bacillus megaterium PSA10
title_fullStr Production of Poly-α-hydroxybutyrate (PHB) from Sago Starch by The Native Isolate Bacillus megaterium PSA10
title_full_unstemmed Production of Poly-α-hydroxybutyrate (PHB) from Sago Starch by The Native Isolate Bacillus megaterium PSA10
title_short Production of Poly-α-hydroxybutyrate (PHB) from Sago Starch by The Native Isolate Bacillus megaterium PSA10
title_sort production of poly α hydroxybutyrate phb from sago starch by the native isolate bacillus megaterium psa10
url https://jurnal.ugm.ac.id/ijbiotech/article/view/7559
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AT langkahsembiring productionofpolyahydroxybutyratephbfromsagostarchbythenativeisolatebacillusmegateriumpsa10
AT sebastianmargino productionofpolyahydroxybutyratephbfromsagostarchbythenativeisolatebacillusmegateriumpsa10