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426151

Sustainable Development of Antimicrobial Polyvinyl Chloride Bioplastics Using Chlamydomonas reinhardtii Extract

Article

Last updated: 11 May 2025

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Subjects

-

Tags

Environmental chemistry

Abstract

The green microalga Chlamydomonas reinhardtii was utilized for bio-based plastic production, focusing on optimizing polyhydroxybutyrate (PHB) synthesis. Optimal cultivation conditions (40 °C, pH 8.8, light intensity 1100 lux, salinity 0.15 M) yielded 102.84 ± 0.5 mg/g of PHB, while phosphorus-free media with 2 g/L sodium acetate achieved a maximum of 201 ± 0.5 mg/g. Bioplastic films were developed by blending polyvinyl chloride (PVC) with C. reinhardtii extracts (0-75%). The 50% algal extract/PVC blend exhibited the best mechanical properties, with a tensile stress of 9.41 MPa and 2% elongation. Chloroform extracts of C. reinhardtii showed significant antimicrobial activity against bacteria and fungi, with the highest inhibition (31 ± 0.28 mm) against Staphylococcus aureus. This study highlights the potential of C. reinhardtii-based biodegradable antimicrobial bioplastics as eco-friendly alternatives to conventional plastics.

DOI

10.21608/ejchem.2025.361490.11327

Keywords

Bioplastic films, Polyhydroxybutyrate (PHB), Chlamydomonas reinhardtii, antimicrobial activity

Authors

First Name

Gehad

Last Name

Taha

MiddleName

mohammed

Affiliation

Botany and Microbiology Department, Faculty of Science, Al-Azhar University (Girls Branch, Cairo), Nasr City 11754, Cairo, Egypt

Email

jihadtaha08@gmail.com

City

cairo

Orcid

-

First Name

Sayeda

Last Name

Abdo

MiddleName

M.

Affiliation

Water Pollution Research department, National Research Centre, Cairo 12622, Egypt

Email

sayedamohammed2015@gmail.com

City

cairo

Orcid

-

First Name

Entsar

Last Name

Ahmed

MiddleName

Mohamed

Affiliation

Botany and Microbiology Department, Faculty of Science, Al-Azhar University (Girls Branch, Cairo), Nasr City 11754, Cairo, Egypt

Email

entesar18@yahoo.com

City

Cairo

Orcid

-

First Name

Ahmed

Last Name

El-Gamal

MiddleName

Darwish

Affiliation

Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt

Email

ahmed46da@yahoo.com

City

Cairo

Orcid

-

First Name

Rawheya

Last Name

Salah El Din

MiddleName

A.

Affiliation

Botany and Microbiology Department, Faculty of Science, Al-Azhar University (Girls Branch, Cairo), Nasr City 11754, Cairo, Egypt

Email

rawheyaabdellatife@gmail.com

City

cairo

Orcid

-

Volume

68

Article Issue

8

Related Issue

55511

Issue Date

2025-08-01

Receive Date

2025-02-24

Publish Date

2025-08-01

Page Start

77

Page End

96

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 68_Issue 8_Pages 77-96.pdf

PDF . 12.8MB

Link

https://ejchem.journals.ekb.eg/article_426151.html

Detail API

http://journals.ekb.eg?_action=service&article_code=426151

Order

426,151

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

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

MainTitle

Sustainable Development of Antimicrobial Polyvinyl Chloride Bioplastics Using Chlamydomonas reinhardtii Extract

Details

Type

Article

Created At

11 May 2025