414901

Optimizing parameters for production of cell wall hydrolyzing enzymes by <i> Aspergillus eucalypticola </i>AUMC 15402 under submerged and solid-state conditions

Article

Last updated: 29 Mar 2025

Subjects

-

Tags

Fungi
Microbial Enzymes
Microbiology
Secondary Metabolites
Sustainable Development Goals

Abstract

In this study, a promising fungal isolate has been isolated from sugarcane bagasse, and it has demonstrated a high potential for producing endoglucanase, exoglucanase, and xylanase. The fungus was identified as Aspergillus eucalypticola by using sequencing of the internal transcribed spacer region. At 30 C, sodium nitrate was the best nitrogen source for the maximum activity of endoglucanase (21.0±2.2 U/mg at pH 8.0 after 8 days), exoglucanase (37.8±4.0 U/mg at pH 5.0 after 9 days), and xylanase (42.0±4.0 U/mg at pH 8.0 after 6 days). Endoglucanase and exoglucanase presented their highest activity of 0.362 and 4.25 U/mg, respectively, at pH 8.0 and 45 ºC, while pectinase and xylanase showed their activity maxima of 4.0 and 2.94 U/mg, respectively, at pH 8.0 and 50 ºC. Co2+, Mn2+, SDS, Ca2+, and Ni2+ boosted endoglucanase activity by 138.72, 126.65, 125.24, 110.1, and 104.85 %, respectively. Every material under investigation boosted the activity of exoglucanase, except for Ni2+ and SDS. The increased impact ranged from 101.43% for EDTA to 146.16% for Mn2+. Co2+, Mn2+, SDS, and Fe2+ increased pectinase activity by 123, 118.34, 107.4, and 101.9 %. Mn2+ followed by Co2+, SDS, Fe2+, and Ca2+ improved xylanase activity by 179.4, 167.75, 152.0, 123.35, and 102.0 %, respectively. The strain fermented date palm leaves, rice straw, and sugarcane bagasse under solid state fermentation into endoglucanase (18.0, 16.0, and 9.0 U/g), exoglucanase (20.0±1.64, 25.0±2.0, and 15.0±1.0), pectinase (34.0±2.84, 38.0±2.85, and 38.0±3.0 U/g), and xylanase (25.0±1.8, 28.0±2.0, and 17.0±1.1 U/g), respectively.

DOI

10.21608/mb.2025.332229.1202

Keywords

agro-industrial, bagasse, Cocktail enzymes, date palm, Straw

Authors

First Name

Osama

Last Name

Al-Bedak

MiddleName

A.M.

Affiliation

Assiut University Mycological Centre, 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

Marwa

Last Name

Abdel-Sater

MiddleName

M. A.

Affiliation

Department of Botany and Microbiology, Faculty of Science, New Valley University, El-Kharga, New Valley, Egypt.

Email

marwa.abdelsater@yahoo.com

City

-

Orcid

-

First Name

Abdel-Hamied

Last Name

Rasmey

MiddleName

M.

Affiliation

Botany and Microbiology Department, Faculty of Science, Suez University, Suez, Egypt.

Email

abdel-hamied.rasmey@sci.suezuni.edu.eg

City

-

Orcid

-

First Name

Sedky

Last Name

Hassan

MiddleName

H. A.

Affiliation

Biology Department, College of Science, Sultan Qaboos University, Muscat, 123, Oman.

Email

s.hassan@squ.edu.om

City

-

Orcid

-

Volume

10

Article Issue

1

Related Issue

53711

Issue Date

2025-03-01

Receive Date

2024-10-29

Publish Date

2025-03-01

Page Start

135

Page End

151

Print ISSN

2357-0326

Online ISSN

2357-0334

Link

https://mb.journals.ekb.eg/article_414901.html

Detail API

http://journals.ekb.eg?_action=service&article_code=414901

Order

414,901

Type

Original Article

Type Code

502

Publication Type

Journal

Publication Title

Microbial Biosystems

Publication Link

https://mb.journals.ekb.eg/

MainTitle

Optimizing parameters for production of cell wall hydrolyzing enzymes by <i> Aspergillus eucalypticola </i>AUMC 15402 under submerged and solid-state conditions

Details

Type

Article

Created At

09 Mar 2025