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407282

Screening and Optimizing the Fermentation Conditions for Cold-Active Amylase Production by Some Penicillium and Talaromyces Species in Submerged Conditions

Article

Last updated: 01 Feb 2025

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Abstract

In the current study, 126 isolates representing 24 distinct fungi species from the genera Penicillium and Talaromyces were screened to assess their abilities for generating cold-active amylase at 10 and 30 oC. According to preliminary screening results, all investigated isolates (100%) developed cold-active amylase at 10 oC, with 32 exhibiting a moderate capability and 94 exhibiting high activity. However, 122 isolates (96.7%) produced positive results at 30 ºC, with 35 exhibiting high amylase activity, 50 exhibiting moderate activity, and 37 exhibiting low activity. Fungal isolates that demonstrated high activity at 10 and 30 ºC in the preliminary test (94 and 35, respectively) were further investigated for cold-active amylase production under submerged fermentation (SmF) conditions. At 10 and 30 ºC, respectively, Penicillium citrinum AUMC 576 and Penicillium goetzii AUMC 498 were the most active strains under SmF. The pH, temperature, nitrogen source, and fermentation time were all changed for P. goetzii AUMC 498 and P. citrinum AUMC 576 in order to promote the production of cold-active amylase. After 7.0 days, P. goetzii demonstrated its maximum amylase production (3.7±0.34 U/mL) at pH 7.0 and 10 ºC using the beef extract as the nitrogen supply. However, P. citrinum demonstrated that after 3.0 days of employing the yeast extract as a nitrogen source, amylase activity peaked (9.92±0.84 U/mL) at pH 7.0 and 25 ºC.

DOI

10.21608/jamb.2025.332735.1038

Keywords

Cold-active, Penicillium, Optimization, Submerged, Talaromyces

Authors

First Name

Osama

Last Name

Al-Bedak

MiddleName

A.M.

Affiliation

Assiut University Mycological Centre, Assiut University, Assiut, 71511, Egypt & ERU Science & Innovation Center of Excellence, Egyptian Russian University, Badr city 11829, Cairo, Egypt

Email

osamaalbedak@science.au.edu.eg

City

Assiut

Orcid

0000-0003-0465-619X

First Name

Rabab

Last Name

Sakr

MiddleName

Shobak

Affiliation

Department of Applied Biotechnology, Molecular Biology Research Institute, Assiut University, Assiut 71511, Egypt

Email

r252005@yahoo.com

City

-

Orcid

(0000-0001-6354-4863)

First Name

Ahmed

Last Name

Moharram

MiddleName

M.

Affiliation

Department of Botany and Microbiology, Faculty of Science, Assiut University, Assiut 71511, Egypt & Assiut University Mycological Centre, Assiut University, Assiut, 71511, Egypt

Email

ahmed.marzouk@science.au.edu.eg

City

-

Orcid

-

First Name

Heba

Last Name

Yassa

MiddleName

Atia

Affiliation

Department of Forensic Medicine, Faculty of Medicine, Assiut University, Assiut 71511, Egypt

Email

-

City

-

Orcid

-

First Name

Bahaa El-Dein

Last Name

Abd El-Fatah

MiddleName

E.

Affiliation

Department of Genetics, Faculty of Agriculture, Assiut University, Assiut 71511, Egypt

Email

-

City

-

Orcid

-

Volume

3

Article Issue

1

Related Issue

53339

Issue Date

2025-01-01

Receive Date

2024-11-05

Publish Date

2025-01-01

Page Start

94

Page End

107

Online ISSN

2974-4008

Link

https://jamb.journals.ekb.eg/article_407282.html

Detail API

http://journals.ekb.eg?_action=service&article_code=407282

Order

407,282

Type

Original Article

Type Code

2,814

Publication Type

Journal

Publication Title

Journal of Applied Molecular Biology

Publication Link

https://jamb.journals.ekb.eg/

MainTitle

Screening and Optimizing the Fermentation Conditions for Cold-Active Amylase Production by Some Penicillium and Talaromyces Species in Submerged Conditions

Details

Type

Article

Created At

01 Feb 2025