Efficient and Eco-friendly Chitin Production from Crab Shells Using Novel Deep Eutectic Solvents

IF 4.7 3区 工程技术 Q2 ENGINEERING, ENVIRONMENTAL
Jinjing Ma, Yu Yu, Deyu Chu, Shaomin Zhu, Qishun Liu, Heng Yin
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Abstract

Chitin is the second most abundant biopolymer in the world after cellulose and commonly found in crustaceans. It is also the most abundant natural nitrogen-containing polysaccharide. The challenge in separation of chitin directly from snow crab (Chionoecetes opilio) shells is that the solvent used must be versatile in removing calcium carbonate and protein while also being efficient, environmentally friendly, and cost-effective. In this study, chitin was extracted from snow crab shells using a DES consisting of TEBAC and lactic acid. DES successfully removed minerals and proteins, with a deproteinization rate of 95.51% and a decalcification rate of 96.41%, while the purity of chitin was 91.15% and the yield was 21.31%. Furthermore, the extracted chitin has large pores on its surface, making it an ideal matrix for biomedical materials. This study provides an environmentally friendly and cost-effective solution for the utilization of crustacean waste using multifunctional DES.

Abstract Image

利用新型深共晶溶剂从蟹壳中生产高效、环保的甲壳素
甲壳素是世界上含量仅次于纤维素的生物聚合物,常见于甲壳类动物。它也是最丰富的天然含氮多糖。直接从雪蟹(Chionoecetes opilio)甲壳中分离甲壳素所面临的挑战是,所使用的溶剂必须具有去除碳酸钙和蛋白质的多功能性,同时还必须高效、环保和具有成本效益。本研究使用由 TEBAC 和乳酸组成的 DES 从雪蟹壳中提取甲壳素。DES 成功去除了矿物质和蛋白质,脱蛋白率为 95.51%,脱钙率为 96.41%,甲壳素纯度为 91.15%,产率为 21.31%。此外,提取的甲壳素表面具有较大的孔隙,是理想的生物医学材料基质。这项研究为利用多功能 DES 利用甲壳类废弃物提供了一种环保且经济高效的解决方案。
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来源期刊
Journal of Polymers and the Environment
Journal of Polymers and the Environment 工程技术-高分子科学
CiteScore
9.50
自引率
7.50%
发文量
297
审稿时长
9 months
期刊介绍: The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.
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