黑粒青麦仁协同护色技术研究

以中普黑麦一号为原料,探讨了不同护色剂对黑粒青麦仁色泽的影响,并采用正交试验对黑粒青麦仁护色配方工艺进行了优化,得出最佳的护色配方。结果表明,20g/L蛋黄粉、10g/L柠檬酸、20g/L NaCl、30g/L蔗糖,均对黑粒青麦仁有护色作用;最优的复合护色剂为20g/L蛋黄粉+30g/L NaCl+30g/L蔗糖,经此复合护色剂处理的黑粒青麦仁,在水洗后仍能保持较好的色泽,色差值L*为23.12。

Study on the Color-protecting Technology of Black Wheat

The effect of different color fixatives on black wheat was investigated with Zhongpu Black 1 as raw material,and the optimal dose of compound color fixative was confirmed with the sigle factor experiment and the orthogonal experiment.The results showed that 20 g/L custard powder,10 g/L citric acid,20 g/L NaCl and 30 g/L sucrose showed good color-protection on black wheat,respectively;the optimum compound reagent for color-protection of black wheat was a mixture of 20 g/L custard powder,30 g/L NaCl,30 g/L sucrose,the black wheat had maintained a good color,and the L* value was 23.12 after being washed by this compound reagent.