亚临界流体萃取法回收废弃虾蟹壳中虾青素

Subcritical fluid extraction of astaxanthin from shrimp and crab shell waste

摘要:

研究了以废弃虾蟹壳为原料亚临界流体萃取法提取虾青素的工艺。通过单因素及正交实验优化了提取条件，提取工艺为：以二氯甲烷为溶剂，100℃，9.31-11.72MPa，静态提取时间15min，循环2次，提取率为0.0373%。与传统的有机溶剂浸提法提取结果比较表明，亚临界流体萃取的提取率高33.2%，且耗时减少82.8%。

Abstract:

In this paper, shrimp and crab waste was used as raw material for extraction of astaxanthin. The subcritical fluid extraction process was optimized. Result shows that the best extraction reagent, temperature, pressure, static time and static cycle were dichloromethane, 100℃, 9.31-11.72MPa, 15 minutes and 2 times, respectively, under which the extraction ratio is 0.0373%. Compared with the result of traditional organic solvent extraction, the subcritical fluid extraction has 33.2% higher extraction ratio and consumes 82.8% less time.