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1094

Production, Characterization and Immobilization of a <i>Fusarium solani</i> Lipase by Chitosan Magnetic Nanoparticles

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Last updated: 22 Jan 2023

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Abstract

Lipase producing fungus was isolated and identified as a strain of Fusarium solani based on its 18s rDNA sequencet. The enzyme it produces was purified by diethyl amino ethyl sephadex (DEAE-sephadex) column chromatography. The specific activity of the pure enzyme was 1.98 U/mg protein. The kinetics study showed that Km and Vmax values were 0.63µM and 29.4µM/min/mg protein, respectively. The MW was 95.27 kDa. Effects of pH, incubation temperature and organic solvents on the lipase activity were studied. The maximum enzyme activity was obtained at pH 8.5 and incubation temperature 35°C. Hexane and butanol inhibited enzyme activity by 51% and 72.6 %, respectively, while DMSO stimulated the activity by 47.8%. The lipase was immobilized by fusion to chitosan-coated iron oxide magnetic nanoparticles and cross-linked by glutaraldehyde. The reusability and storage period of the immobilized enzyme showed that the enzyme retained 80% of its activity after 15 reuse cycles and retained 97% of activity after 30 days of storage at 4°C. The immobilized lipase was tested for synthesis of sugars-oleate esters and the ester products were analyzed by liquid chromatography tandem-mass spectrometry (LC/MS/MS). This investigation identified the potential for use of the obtained F. solani lipase in industrial applications that utilize organic solvents or alkaline pH values, such as detergent industry.

DOI

10.21608/ejm.2017.1094

Keywords

<i>Fusarium solani</i>, Lipases, magnetic nanoparticles, Enzyme immobilization, Chitosan

Authors

First Name

Ahmed

Last Name

EL-Sayed

MiddleName

M.

Affiliation

Research and Development Center, Misr University for Science and Technology (MUST), Egypt.

Email

ahmed.elsayed@must.edu.eg

City

-

Orcid

-

First Name

Wedad

Last Name

Eweda

MiddleName

E.

Affiliation

Agricultural Microbiology Department, Faculty of Agriculture, Ain Shams University, Egypt.

Email

drweweda@hotmail.com

City

-

Orcid

-

First Name

Tarek

Last Name

EI-Tayeb

MiddleName

S.

Affiliation

Agricultural Microbiology Department, Faculty of Agriculture, Ain Shams University, Egypt.

Email

tarekeltayeb@yahoo.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Abdel Azeiz

MiddleName

Z

Affiliation

College of Biotechnology, Misr University for Science and Technology

Email

alrahman3@hotmail.com

City

Cairo

Orcid

-

Volume

51

Article Issue

1

Related Issue

273

Issue Date

2016-12-01

Receive Date

2016-10-30

Publish Date

2016-12-31

Page Start

63

Page End

75

Print ISSN

0022-2704

Online ISSN

2357-0881

Link

https://ejm.journals.ekb.eg/article_1094.html

Detail API

https://ejm.journals.ekb.eg/service?article_code=1094

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5

Type

Original Article

Type Code

121

Publication Type

Journal

Publication Title

Egyptian Journal of Microbiology

Publication Link

https://ejm.journals.ekb.eg/

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Article

Created At

22 Jan 2023