Year: 2025
Type: article
Abstract: The microbial biotransformation of low-cost feedstock to generate biodegradable biopolymers, as an alternative to synthetic plastics, is a promising strategy for sustainable development. The study investigated the biotransformation of dairy byproduct (whey) into polyhydroxyalkanoate (PHA) copolymers with the supplementation of amino acids using Ralstonia eutropha. The sulphur-containing (cystine, cysteine, methionine) and aromatic (phenylalanine, tryptophan, and tyrosine) amino acids were supplemented. The highest yield of 37.1195% was obtained with tryptophan supplementation. The characterisation of PHA and its copolymers was conducted using ESI-MS and FTIR. This study demonstrates that dairy byproducts can potentially serve as a cost-effective feedstock for producing high concentrations of biopolymers with amino acid supplementation, thereby promoting a sustainable waste management system.
Source: Scientific Reports
Authors: Tejaswini Patil, Preetam Bannerjee, Aparna Agarwal, Abhishek Dutt Tripathi, Veena Paul, Ankita Hooda, Mansour K. Gatasheh, Dipendra Kumar Mahato
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Funder: King Saud University
OpenAlex ID: W4415885105