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Bioproduction of chitooligosaccharides: present and perspectives
1Division of Applied Bioscience & Biotechnology, Institute of Environment-Friendly Agriculture (IEFA), College of Agricultural and Life Sciences, Chonnam National University, Gwangju 500-757, Korea. woojung@chonnam.ac.kr.
Marine Drugs
|October 30, 2014
Summary
Environmentally friendly methods using enzymes or microorganisms offer alternatives to harsh acid treatments for producing chitin and chitosan oligosaccharides (COS). These biodegradation processes avoid toxic chemicals and reduce wastewater, presenting a sustainable approach for COS production.
Area of Science:
- Biotechnology
- Biochemistry
- Materials Science
Background:
- Traditional chitin and chitosan oligosaccharide (COS) production relies on harsh chemical acid digestion.
- These chemical methods pose environmental challenges, including toxic chemical use and significant wastewater generation.
- Developing sustainable and reproducible alternatives for COS production is crucial for industrial applications.
Purpose of the Study:
- To explore environmentally compatible and reproducible methods for producing chitin and chitosan oligosaccharides (COS).
- To evaluate the potential of biodegradation processes using enzymes or microorganisms as alternatives to chemical digestion.
- To discuss emerging technologies for COS production and their industrial applicability.
Main Methods:
- Utilizing enzyme preparations with chitinase, chitosanase, and lysozyme for chitin and chitosan hydrolysis.
- Employing commercial enzyme preparations like cellulase, protease, lipase, and pepsin for oligosaccharide production.
- Investigating the transglycosylation activity of chitinolytic enzymes and the role of chitin deacetylase.
- Exploring mechanochemical grinding combined with enzymatic hydrolysis for direct oligosaccharide production from chitin and crab shells.
Main Results:
- Biodegradation using enzymes or microorganisms avoids toxic chemicals and excessive wastewater compared to acid digestion.
- Various enzymes, including chitinases, chitosanases, lysozymes, cellulases, proteases, lipases, and pepsin, can hydrolyze chitin and chitosan.
- Transglycosylation activity of chitinolytic enzymes offers potential for synthesizing specific chitin oligomers and derivatives.
- Direct production of oligosaccharides from chitin and crab shells via mechanochemical grinding and enzymatic hydrolysis is feasible.
Conclusions:
- Enzymatic and microbial biodegradation offer greener, more reproducible alternatives for chitin and chitosan oligosaccharide (COS) production.
- Emerging technologies like mechanochemical grinding, direct degradation from natural sources, enzymatic synthesis from building blocks, and protein engineering show promise for industrial COS production.
- Overcoming challenges in these emerging technologies is key for widespread industrial application of COS.
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