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Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...

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Related Experiment Video

Updated: Oct 5, 2025

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

Published on: April 22, 2016

Microbial xylitol production.

Kuldeep Kumar¹, Ekta Singh¹, Smriti Shrivastava²

¹Amity Institute of Biotechnology, Amity University Uttar Pradesh, Uttar Pradesh, Sector 125, Noida, India.

Applied Microbiology and Biotechnology

|January 28, 2022

Summary

This summary is machine-generated.

Xylitol, a sugar alcohol, is increasingly in demand. This review explores microbial production of xylitol from agro-industrial waste, highlighting sustainable biotechnological methods for efficient xylose assimilation.

Keywords:

Microbial production Sustainable process Xylitol

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Published on: October 24, 2016

Area of Science:

Biotechnology and Industrial Microbiology
Biochemical Engineering
Sustainable Chemistry

Background:

Xylitol, a pentahydroxy sugar alcohol, occurs naturally in trace amounts but has significant industrial applications in food, pharmaceuticals, and confectioneries.
High market demand for xylitol exceeds its natural availability, necessitating alternative production methods.
Current production relies on chemical synthesis, which uses toxic chemicals, and biotechnological routes, which are eco-friendly but sensitive to parameters.

Purpose of the Study:

To review microbial xylitol production pathways and bioprocesses.
To explore the utilization of agricultural residues and industrial effluents as substrates for xylitol biosynthesis.
To provide a comprehensive overview of xylitol occurrence and biotechnological production methods.

Main Methods:

Review of literature on microbial xylitol production.
Analysis of biochemical pathways for xylose assimilation and conversion by various microorganisms.
Evaluation of bioprocesses utilizing lignocellulosic biomasses and industrial effluents.

Main Results:

Identified key microbes such as Candida tropicalis, Candida maltose, Bacillus subtilis, and Debaromyces hansenii for xylitol production.
Detailed microbial xylose assimilation and conversion pathways.
Demonstrated the feasibility of using agro-industrial waste and effluents as cost-effective and sustainable substrates.

Conclusions:

Microbial production offers a sustainable and eco-friendly alternative to chemical synthesis for xylitol.
Agro-industrial waste and industrial effluents are viable substrates for xylitol biosynthesis, promoting a circular economy.
Further research into bioprocess optimization can enhance xylitol yield and economic viability.