Characterizing the growth of PHA-producing microorganisms on short-chain carboxylic acids.

ABSTRACT: Short-chain carboxylic acids are important chemical intermediates in anaerobic treatment or thermal hydrolysis of biowaste. They are a crucial precursor for the production of Polyhydroxyalkanoate (PHA) by various microorganisms. However, there is limited data on the growth behavior of PHA-producing microorganisms on carboxylic acids and their tolerance range. Therefore, this study aims to systematically determine the growth behavior of four commonly used PHA-producing microorganisms (Cupriacidus necator, Pseudomonas putida, Azohydromonas australica, and Haloferax mediterranei) on different carboxylic acids (formic, acetic, propionic, valeric, and levulinic acid). Batch experiments were conducted in a microbioreactor to determine the maximum specific growth rates (µ_max) on varyin

SUBMITTER: Leonhardt S 

PROVIDER: S-EPMC12455835 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature