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67696

Survey for Tyrosinase production by Streptomyces species

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Last updated: 04 Jan 2025

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Abstract

The present study was focused on isolation and screening of tyrosinase enzyme produced by actinomycetes. The isolates were primarily identified to genus level on the basis of their microscopic and cultural characteristics. Biochemical and other characters were used to identify isolates to species level. A total five soil samples were collected from different sites at Damietta EL-Gededa (Egypt) and Meslatah (Libya). The total 36actinomycete isolates were obtained from soil by performing serial dilution technique and using starch-nitrate agar and primary screened for tyrosinase production by using tyrosine agar medium. Based on the result of primary screening,8 isolates 2D, 4D, 5L, 6L, 12D, 13D, 14D and 26L showed blackish brown  pigment development due to melanin production, was selected. These isolates were taken for secondary screening(tyrosinase assay) by culturing on tyrosine broth at 30OC for 5 days. Greenish black color was reported in tyrosine broth indicated the positive tyrosinase activity. Out of them, isolates13D,14D and 26Lwhich showed the highest tyrosinase activities (1.2 U/ml, 4.8 U/mL and 8.4 U/mL, respectively) were identified on the basis ofcultural, morphological, physiological, biochemical as Streptomyces malachitorectus, Streptomycesiakyrus and Streptomycesechinatus, respectively.

DOI

10.21608/jades.2019.67696

Keywords

Actinomycetes, Streptomyces, Tyrosinase, Screening

Authors

First Name

Mohamed

Last Name

Abou-Dobara

MiddleName

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Affiliation

Botany and Microbiology Dept., Faculty of Sci., Damietta Univ., Damietta El-Gededa, PO 34517, Egypt

Email

aboudobara@gmail.com

City

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Orcid

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First Name

Ahmed

Last Name

El-Sayed

MiddleName

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Affiliation

Botany and Microbiology Dept., Faculty of Sci., Damietta Univ., Damietta El-Gededa, PO 34517, Egypt

Email

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City

-

Orcid

-

First Name

Amira

Last Name

El-Fallal

MiddleName

-

Affiliation

Botany and Microbiology Dept., Faculty of Sci., Damietta Univ., Damietta El-Gededa, PO 34517, Egypt

Email

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City

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Orcid

-

First Name

Mona

Last Name

Sauf

MiddleName

-

Affiliation

The higher institute for comprehensive professions, Mesallata, Libya

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City

-

Orcid

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Volume

20

Article Issue

1

Related Issue

10224

Issue Date

2019-12-01

Receive Date

2019-05-07

Publish Date

2019-12-01

Page Start

79

Page End

90

Print ISSN

1110-8770

Online ISSN

2314-5471

Link

https://jades.journals.ekb.eg/article_67696.html

Detail API

https://jades.journals.ekb.eg/service?article_code=67696

Order

7

Type

Original Article

Type Code

1,097

Publication Type

Journal

Publication Title

Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies

Publication Link

https://jades.journals.ekb.eg/

MainTitle

Survey for Tyrosinase production by Streptomyces species

Details

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Article

Created At

22 Jan 2023