【摘要】 以济南市特有的鸡爪绵核桃雄花为原料,针对核桃雄花加工过程中易于褐变的问题,探究不同护色剂的护色效果,并在单因素试验的基础上以正交试验对漂烫护色工艺进行优化,分析影响核桃雄花护色前后色差的重要技术参数。结果表明:当色差值ΔE最低时,护色剂效果最佳,其配比为抗坏血酸0.50 g/L、植酸0.15 g/L、氯化钙0.70 g/L;核桃雄花护色最佳工艺参数为漂烫时间2 min,护色时间1.5 h,护色剂浓度0.6 g/L,料液比1∶35(g/mL),护色温度0℃,在此条件下进行护色处理后所得核桃雄花经6 h自然条件放置后色差值ΔE为15.6,取得了较好的效果,为核桃雄花后续精深加工提供了一定的理论依据。更多还原

【Abstract】 The paper explored the color protection effects of different color protection agents toward the unique Jizhaomian walnut male flower from Jinan,to address the problem of easy browning during processing,optimized the color protection process by orthogonal testing using single factor tests,and analyzed the important technical parameters affecting color differences before and after color protection of walnut male flowers. The color protection agent that produced the lowest ΔE was most effective. The optimum conditions of walnut male flower color protectant were ascorbic acid 0.50 g/L,phytic acid 0.15 g/L,calcium chloride 0.70 g/L The optimum technological parameters for color protection of walnut male flowers were:blanching time of 2 min,color protection time of 1.5 h,color protection agents concentration of 0.6 g/L,solid-liquid ratio of 1∶35(g/mL)and color protection temperature of 0 ℃. Under these conditions,the ΔE of walnut male flowers placed under natural conditions after 6 h was 15.6,which achieved good resultd,and provided a theoretical basis for the subsequent intensive processing of walnut male flowers.更多还原