Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.
Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
Int J Mol Sci. 2021 Apr 21;22(9):4308. doi: 10.3390/ijms22094308.
Sustainability and environmental concerns have persuaded researchers to explore renewable materials, such as nature-derived polysaccharides, and add value by changing chemical structures with the aim to possess specific properties, like biological properties. Meanwhile, finding methods and strategies that can lower hazardous chemicals, simplify production steps, reduce time consumption, and acquire high-purified products is an important task that requires attention. To break through these issues, electrical discharging in aqueous solutions at atmospheric pressure and room temperature, referred to as the "solution plasma process", has been introduced as a novel process for modification of nature-derived polysaccharides like chitin and chitosan. This review reveals insight into the electrical discharge in aqueous solutions and scientific progress on their application in a modification of chitin and chitosan, including degradation and deacetylation. The influencing parameters in the plasma process are intensively explained in order to provide a guideline for the modification of not only chitin and chitosan but also other nature-derived polysaccharides, aiming to address economic aspects and environmental concerns.
可持续性和环境问题促使研究人员探索可再生材料，如天然多糖，并通过改变化学结构来赋予其特定的性质，如生物性质，从而增加其价值。同时，寻找能够降低危险化学品、简化生产步骤、减少时间消耗和获得高纯度产品的方法和策略是一项重要任务，需要引起关注。为了突破这些问题，在大气压和室温下的水溶液中进行放电，即“溶液等离子体处理”，已被引入作为一种新型的天然多糖如甲壳素和壳聚糖的改性方法。本综述揭示了对水溶液放电的深入了解以及在甲壳素和壳聚糖改性方面的科学进展，包括降解和脱乙酰化。详细解释了等离子体处理中的影响参数，以便为不仅是甲壳素和壳聚糖，而且还有其他天然多糖的改性提供指导，旨在解决经济方面和环境问题。
