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302329

Bacillus amyloliquefaciens Alkaline Protease: Potential Applications and Stabilization

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Biochemistry

Abstract

Bacillus amyloliquefaciens alkaline protease (AL-PR) was partially purified and a 2.55 purification fold was achieved at 60% ammonium sulfate. The partially purified AL-PR was then characterized with respect to its presented activities and stabilities at variable pHs and temperatures. The enzyme was also slightly inhibited by PMSF(serine proteases inhibitor) and was completely inhibited by both EDTA (a general metalloprotease inhibitor) and 1,10 phenanthroline ( a zinc metalloinhibitor), These results indicated that the enzyme might be a Zn metalloprotease. The partially purified AL-PR offered antimicrobial activity versus Bacillus cereus, Pseudomonas aeruginosa, and Candida albicans. It also offered anti-oxidant activity against DPPH with an IC50 of 0.59 mg/ml. Moreover, the partially purified AL-PR was proven to be safe to normal skin cells (BJ1) and it also promoted wound healing. Thus, the partially purified AL-PR has potential for wound healing applications. In order to further promote its application, it was stabilized via conjugation with variable oxidized polysaccharides. Conjugation with oxidized DEAE dextran and carboxymethyl cellulose elevated the thermal stability of the partially purified AL-PR. Nonetheless, CMC imparted a bigger stabilizing effect as it caused the AL-PR t1/2 and D-values (at 60°C) to be 5.97 fold raised.

DOI

10.21608/ejchem.2023.189194.7499

Keywords

Partial Purification, Antimicrobial, Wound healing, oxidized polysaccharides, Thermal stability

Authors

First Name

Olfat

Last Name

Amin

MiddleName

El Sayed

Affiliation

Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Research Division , National Research Centre, NRC.

Email

dr.olfatelsayed@gmail.com

City

Giza-Cairo

Orcid

-

First Name

Ahmed

Last Name

Aboul-Enein

MiddleName

Mahmoud

Affiliation

Biochemistry Department, Faculty of Agriculture, Cairo University, Egypt

Email

aboul.enein1@gmail.com

City

Giza-Cairo

Orcid

0000-0002-3350-3451

First Name

Ibrahim

Last Name

Abdelsalam

MiddleName

-

Affiliation

Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Giza 12622, Egypt

Email

ibrahimabdelsalam69@gmail.com

City

-

Orcid

-

First Name

Marwa

Last Name

Wahba

MiddleName

-

Affiliation

Department of chemistry of natural and microbial products, national research centre, egypt

Email

drmarwawahba@yahoo.com

City

Cairo

Orcid

0000-0001-5239-1400

Volume

66

Article Issue

13

Related Issue

43707

Issue Date

2023-12-01

Receive Date

2023-01-24

Publish Date

2023-12-01

Page Start

1,279

Page End

1,293

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_302329.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=302329

Order

302,329

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Bacillus amyloliquefaciens Alkaline Protease: Potential Applications and Stabilization

Details

Type

Article

Created At

30 Dec 2024