ItemArticle

Harnessing Wild Jackfruit Extract for Chitosan Production by Aspergillus versicolor AD07: Application in Antibacterial Biodegradable Sheets

Title
Harnessing Wild Jackfruit Extract for Chitosan Production by Aspergillus versicolor AD07: Application in Antibacterial Biodegradable Sheets
Creator
Santhosh, Adhithya Sankar; Umesh, Mridul
Description
A fungal strain with comparably high chitosan yield was isolated from the Shivaganga hills and identified as Aspergillus versicolor AD07 through molecular characterization. Later, the strain was cultivated on Sabouraud Dextrose Broth (SDB) and wild jackfruit-based media to evaluate its potential for chitosan production. Among the various media formulations, the highest chitosan yield (178.40 1.76 mg/L) was obtained from the jackfruit extract medium with added peptone and dextrose. The extracted chitosan was characterized through FTIR, XRD (reported a crystallinity index of 55%), TGA/DTG, and DSC analysis, confirming the presence of key functional groups and high thermal resistance. The extracted chitosan was fabricated into a sheet incorporated with 1% lemongrass oil; the sheet exhibited strong antibacterial activity against Escherichia coli (30 mm) and Bacillus megaterium (48 mm). The biodegradation studies reported a weight loss of 38.93 0.51% after 50 days of soil burial. Further, the chitosan film was tested as a packaging material for paneer, demonstrating better preservation by maintaining nutritional quality and reducing microbial load over a 14-day storage period. These findings highlight the potential of A. versicolor AD07-derived chitosan, cultivated on a waste substrate medium, as a sustainable biopolymer for food packaging applications. 2025 by the authors.
Source
Applied Microbiology (Switzerland);Volume;5;Issue;3;Article No.;71;
Date
01-01-2025
Publisher
Multidisciplinary Digital Publishing Institute (MDPI)
Subject
antimicrobial sheet; chitosan; food packaging; fungal-based bioproduct; wild jackfruit
Coverage
Santhosh A.S., Department of Life Sciences, Christ University, Hosur Road, Bengaluru, 560029, India; Umesh M., Department of Life Sciences, Christ University, Hosur Road, Bengaluru, 560029, India
Rights
All Open Access; Gold Open Access; Green Open Access
Relation
ISSN: 26738007;
Format
online
Language
English
Type
Article

Citation

Santhosh, Adhithya Sankar; Umesh, Mridul, “Harnessing Wild Jackfruit Extract for Chitosan Production by Aspergillus versicolor AD07: Application in Antibacterial Biodegradable Sheets,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/23522.

Output Formats