Lactic acid demineralization of green crab (Carcinus maenas) shells: effect of reaction conditions and isolation of an unusual calcium complex

Green Chemistry Letters and Reviews

Bradley H. C. Greene¹ 

关键词: Chitin;    chitosan;    lactic acid;    green chemistry;    demineralization;   

DOI  :  10.1080/17518253.2015.1119891

学科分类：化学（综合）

来源: Taylor & Francis

【 摘 要 】

Chitin and chitosan are potentially useful and environmentally friendly biopolymers with a wide range of value-added applications. Effective and green technologies for isolation of these materials are potentially important. Here, we report the use of lactic acid for the demineralization of green crab shells. Green crab shells and lactic acid, produced during cheese making, are two waste streams that could be tapped for large-scale chitin and chitosan processing. We have studied the effect of concentration and temperature on the demineralization of green crab shells. An unusual calcium lactate/lactic acid complex was also isolated and crystallographically characterized. The results have implications not only for the use of weak acids in the isolation of chitin and chitosan but also for the use of lactic acid as a solvent in green chemistry.

【 授权许可】

Unknown