Beta
475

Purification and Characterization of Extracellular α-amylase from<i> Aspergillus niger </i>K8

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

-

Abstract

ASPERGILLUS NIGER K8 was selected from twenty-two fungal
……isolates for α-Amylase production. The crude enzyme was partially purified and precipitated by salting out with ammonium sulphate. The fraction salted out with 60% ammonium sulphate saturation showed the highest specific α-amylase activity with 5.42 folds of purification than that of free extract. The optimum temperature for α-amylase enzyme activity was at 60°C. The enzyme was very stable at 60°C for 1 hr and retained more than 80% of its original activity. The optimum specific activity for A. niger K8 was in a narrow range of pH 5.0-6.0. Alpha amylase enzyme was stable at all pH tested. However, it retains more than 75% of its original activity for 1 h at pH value 5.5.

DOI

10.21608/ejbo.2014.475

Keywords

<i> Aspergillus niger</i>, α-amylase, precipitation, Characterization, Thermal stability, pH stability

Volume

54

Article Issue

1

Related Issue

77

Issue Date

2014-06-01

Receive Date

2013-06-16

Publish Date

2014-06-01

Page Start

1

Page End

11

Print ISSN

0375-9237

Online ISSN

2357-0350

Link

https://ejbo.journals.ekb.eg/article_475.html

Detail API

https://ejbo.journals.ekb.eg/service?article_code=475

Order

1

Type

Original Article

Type Code

111

Publication Type

Journal

Publication Title

Egyptian Journal of Botany

Publication Link

https://ejbo.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023