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326361

Keratinase Production from Chicken Feather by New Egyptian Local <i>Streptomyces</i> Isolates

Article

Last updated: 23 Dec 2024

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Abstract

The main objective of the current research was to isolate new Streptomyces species that has the ability to degrade chicken feathers through keratinase production. Nineteen Egyptian local Streptomyces strains were isolated from soil and tested for their ability to produce keratinase enzyme from chicken feathers. Maximum keratinolytic activity was achieved with a novel Streptomyces isolate strain no 6. that was identified by 16S rDNA method with a given name of Streptomyces sp. NRC FM (Accession no. LC456058). The optimum culture conditions for the highest keratinase production were found to be a pH 9.5, at a temperature of 37˚C and agitation speed of 180 rpm. Interestingly, chicken feathers were completely degraded after 9 days of incubation with the novel strain. Keratinase was precipitated using acetone and its molecular weight was estimated to be 30 and 42 kDa using SDS-PAGE. The results obtained suggest that the isolated novel Streptomyces sp., NRC FM, can be considered as a useful biotechnology tool for valorization of keratin-containing wastes.

DOI

10.21608/ejm.2023.238612.1235

Keywords

Feather keratins, Keratinase enzyme, Keratinase-producing microorganisms, <i>Streptomyces</i> sp

Authors

First Name

Nadia

Last Name

Abd El Nasser

MiddleName

H.

Affiliation

Microbial Chemistry Department, Biotechnology Research Institute , National Research Centre, 33 El Behouth st., Dokki P.O. 12622, Giza, Egypt

Email

abdelnassernh@hotmail.com

City

-

Orcid

-

First Name

Amal

Last Name

Aly

MiddleName

M.

Affiliation

Microbial Chemistry Department, Biotechnology Research Institute , National Research Centre, 33 El Behouth st., Dokki P.O. 12622, Giza, Egypt

Email

dr_amal_mohamed@hotmail.com

City

-

Orcid

-

First Name

Shimaa

Last Name

Hanafy

MiddleName

S.

Affiliation

Biochemistry Department , Biotechnology Research Institute , National Research Centre, 33 El Behouth st., Dokki P.O. 12622, Giza, Egypt

Email

chemichemicha@hotmail.com

City

-

Orcid

-

First Name

Fatma

Last Name

Motawe

MiddleName

H.

Affiliation

Microbial Chemistry Department, Biotechnology Research Institute , National Research Centre, 33 El Behouth st., Dokki P.O. 12622, Giza, Egypt

Email

famotawe@gmail.com

City

-

Orcid

-

Volume

58

Article Issue

1

Related Issue

47178

Issue Date

2023-12-01

Receive Date

2023-09-24

Publish Date

2024-01-01

Page Start

25

Page End

33

Print ISSN

0022-2704

Online ISSN

2357-0881

Link

https://ejm.journals.ekb.eg/article_326361.html

Detail API

https://ejm.journals.ekb.eg/service?article_code=326361

Order

326,361

Type

Original Article

Type Code

121

Publication Type

Journal

Publication Title

Egyptian Journal of Microbiology

Publication Link

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

MainTitle

Keratinase Production from Chicken Feather by New Egyptian Local <i>Streptomyces</i> Isolates

Details

Type

Article

Created At

23 Dec 2024