Chitin and chitosan from shellfish waste and their applications in agriculture and biotechnology industries.

IF 8.1 2区工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Critical Reviews in Biotechnology Pub Date : 2025-03-16 DOI:10.1080/07388551.2025.2473576

Sampurna Rai, Prashant Pokhrel, Pranaya Udash, Menjo Chemjong, Namita Bhattarai, Arthittaya Thuanthong, Sitthipong Nalinanon, Nilesh Nirmal

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引用次数: 0

Abstract

A shellfish processing plant generates only 30-40% of edible meat, while 70-60% of portions are considered inedible or by-products. This large amount of byproduct or shellfish processing waste contains 20-40% chitin, that can be extracted using chemical or greener alternative extraction technologies. Chitin and its derivative (chitosan) are natural polysaccharides with nontoxicity, biocompatible, and biodegradable properties. Due to their versatile physicochemical, mechanical, and various bioactivities, these compounds find applications in various industries, including: biomedical, dental, cosmetics, food, textiles, agriculture, and biotechnology. In the agricultural sector, these compounds have been reported to promote: plant growth, plant defense system, slow release of nutrients in fertilizer, plant nutrition, and remediate soil conditions, etc. Whereas, biotechnology applications indicated: enhanced enzyme stability and efficacy, water purification and remediation, application in fuel cells and supercapacitors for energy conversion, acting as a catalyst in chemical synthesis, etc. This review provides a comprehensive discussion on the utilization of these biopolymers in agriculture (fertilizer, seed coating, soil treatment, and bioremediation) and biotechnology (enzyme immobilization, energy conversion, wastewater treatment, and chemical synthesis). Additionally, various extraction techniques including conventional and non-thermal techniques have been reported. Lastly, concluding remarks and future direction have been provided.

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来源期刊

Critical Reviews in Biotechnology 工程技术-生物工程与应用微生物

CiteScore

20.80

自引率

1.10%

发文量

审稿时长

4.8 months

期刊介绍： Biotechnological techniques, from fermentation to genetic manipulation, have become increasingly relevant to the food and beverage, fuel production, chemical and pharmaceutical, and waste management industries. Consequently, academic as well as industrial institutions need to keep abreast of the concepts, data, and methodologies evolved by continuing research. This journal provides a forum of critical evaluation of recent and current publications and, periodically, for state-of-the-art reports from various geographic areas around the world. Contributing authors are recognized experts in their fields, and each article is reviewed by an objective expert to ensure accuracy and objectivity of the presentation.