【摘要】 以胭脂萝卜废渣为原料,提取萝卜硫素。为提高萝卜硫素的得率,优化了胭脂萝卜废渣中萝卜硫苷的酶解条件。在单因素实验的基础上,以响应面分析法分别探讨了四个主要影响因素(酶解温度、酶解时间、p H、抗坏血酸(VC)添加量)对胭脂萝卜废渣中萝卜硫素得率的影响,并进一步优化了硫代葡萄糖苷酶解条件。结果表明:在酶解温度为31℃,酶解时间为7.7 h,p H5.6,VC添加量为0.24 mg/kg条件下,萝卜硫素的得率最高为0.05613%,其结果与模型预测值相符。这说明采用响应面法优化获得的提取条件较可靠。更多还原

【Abstract】 In this study,sulforaphane was extracted from the waste of carmine radish.In order to enhance the yield of sulforaphane,enzymatic hydrolysis conditions of glucosinolates in waste of carmine radish were optimized.Based on single- factor experiments,the effects of four factors( the hydrolysis temperature,hydrolysis time,amount of VC,p H value) on the yield of sulforaphane were investigated by response surface methodology.Experimental results showed that,when the hydrolysis temperature was 31 ℃,hydrolysis time was 7.7 h,amount of VCwas0.24 mg / kg,p H was 5.6,the yield of sulforaphane was the highest with the value of 0.05613%,which were according with the predicted value of model.This indicated that extraction conditions which analyzed by response surface method were more reliable.更多还原