有机溶剂萃取法提取辣椒红色素的研究

摘要

探索有机溶剂法从干红辣椒中提取辣椒红色素的工艺条件,以获得高色价的辣椒红色素.考察了丙酮、95％乙醇、正己烷、乙酸乙酯、石油醚等有机溶剂对辣椒红色素提取的影响,结果表明:正己烷为最佳的提取溶剂.通过单因素实验和正交实验确定正己烷提取的最优条件:提取温度为60℃,萃取次数2次,每次萃取时间为110 min,液料比35(mL/g),萃取色素相对量达18.01％.%To explore a new processing method for organic solvent extraction of capsanthin from hot red peppers in order to obtain capsanthin with a high color scale value.The effects of acetone,95％ethanol,n-hexane,ethyl acetate and petroleum ether on extraction of capsanthin are investigated.The results indicate that n-hexane is the best solvent.By the single factor and orthogonal experiment,the best extraction conditions are as follows:extraction temperature is 60 ℃,extraction times is 2 and each time for 110 min,liquid-solid ratio is 35(mL/g).Under these conditions,the relative value of capsaicin reaches 18.01 ％.