响应面法优化超声波辅助提取红曲米中水溶性色素  

Optimization for ultrasonic wave extraction of water-soluble pigment in red kojic rice by response surface method

作　　者：嵇豪[1] 蒋冬花[1] 杨叶[1] 周琴[1] 王长春[1] 

机构地区：[1]浙江师范大学化学与生命科学学院,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2011年第1期91-96,共6页Journal of Zhejiang Normal University:Natural Sciences

基　　金：浙江省重大科技专项资助(2007C12036);浙江省科技计划资助项目(2007C32004)

摘　　要：研究了红曲米中水溶性色素的超声波辅助提取法的提取工艺.在单因素实验的基础上,采用响应面法研究了超声时间、液料比和超声功率对提取液色价的影响,建立了二次回归模型,得到了提取工艺的最优条件.研究结果表明以上3因素对红曲米中水溶性色素的提取均有显著影响.在提取工艺条件:超声时间为20.6 min,液料比为32.2∶1,超声功率为730 W下提取,红曲米中水溶性色素的色价达到最大值,为570.5 U/g.The extraction technology of water-soluble pigment from red kojic rice was studied.On the basis of single-factor experiment,the response surface methodology was used to study the effects of ultrasonic time,material solvent ratio and ultrasonic wave power on the water-soluble pigment extraction.A quadric regression model for the water-soluble monascus pigment concentration was established,and the optimum extraction conditions were obtained.It showed that all the three factors played important roles to water-soluble pigment extraction.The optimum extraction conditions were as follows： ultrasonic time 20.6 min,material to solvent ratio 32.2 ∶ 1,ultrasonic wave power 730 W.Under such conditions,the water-soluble pigment concentration of the extract reached the theoretical maximum 570.5 U/g.

关 键 词：响应面法 超声波 红曲米 水溶性色素 

分 类 号：TS202.3[轻工技术与工程—食品科学]