Isolation, purification and characterization of mannan degrading enzyme from a new isolate Acinetobacter baummanni
2021 ◽
Vol 924
(1)
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pp. 012078
Keyword(s):
Guar Gum
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Abstract A mannan-degrading microbe was isolated from rotting porang tubers (Amorphophallus muelleri Blume). Molecular identification using 16S-rRNA sequence analysis revealed that the isolate showed 99.67% similarity with Acinetobacter baummanni. A crude enzyme from ammonium sulphate precipitation was used for preliminary characterization. The characterization results showed that the enzyme activity is optimum at 45 °C, and stable at 35-50 °C, while the optimum pH is 7, and stable at pH 5-7. The substrate with the highest relative activity was found in guar gum which was 137.512%. The enzyme activity was inhibited by Ca, Na, K ions, and increased by Mn2+ ions.
Keyword(s):
2005 ◽
Vol 108
(1 & 2)
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pp. 22-31
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2016 ◽
Vol 2016
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pp. 1-7
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2020 ◽
Vol 2
(2)
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1992 ◽
Vol 174
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pp. 6317-6320
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1995 ◽
Vol 61
(6)
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pp. 2346-2350
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2016 ◽
Vol 44
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pp. 134-139
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