Advances in L-Lactic Acid Production from Lignocellulose Using Genetically Modified Microbial Systems

Overview

Journal Polymers (Basel)

Publisher MDPI

Date 2025 Feb 13

PMID 39940524

Authors

Lucila Diaz-Orozco

Mario Moscosa Santillan

Rosa Elena Delgado Portales

Luis Manuel Rosales-Colunga

Cesar Leyva-Porras

Zenaida Saavedra-Leos

Affiliations

Soon will be listed here.

Abstract

Lactic acid is a vital organic acid with a wide range of industrial applications, particularly in the food, pharmaceutical, cosmetic, and biomedical sectors. The conventional production of lactic acid from refined sugars poses high costs and significant environmental impacts, leading to the exploration of alternative raw materials and more sustainable processes. Lignocellulosic biomass, particularly agro-industrial residues such as agave bagasse, represents a promising substrate for lactic acid production. Agave bagasse, a by-product of the tequila and mezcal industries, is rich in fermentable carbohydrates, making it an ideal raw material for biotechnological processes. The use of lactic acid bacteria (LAB), particularly genetically modified microorganisms (GMMs), has been shown to enhance fermentation efficiency and lactic acid yield. This review explores the potential of lignocellulosic biomass as a substrate for microbial fermentation to produce lactic acid and other high-value products. It covers the composition and pretreatment of some agricultural residues, the selection of suitable microorganisms, and the optimization of fermentation conditions. The paper highlights the promising future of agro-industrial residue valorization through biotechnological processes and the sustainable production of lactic acid as an alternative to conventional methods.

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