正交设计优选马蹄莲鲜切花染色技术初步研究

Effects of Food Colors on Dyeing of Cut Flowers of Zantedeschia aethiopica

利用正交设计选优方法探讨5种食用色素对马蹄莲鲜切花染色的最佳条件,得出5种食用色素的染色剂浓度、染色时间、染液pH值的最佳组合分别为:柠檬黄9g/L、6h、7.1,胭脂红12g/L、5h、8.5,果绿6g/L、5.5h、6.0,日落黄9g/L、5h、9.2,苋菜红9g/L(或12g/L)、6h、9.4;染色后切花瓶插寿命稍有缩短,但能达到切花所要求的5～8d观赏期。

Through orthogonal experiment, the best condition of five food colors on dying fresh cut Zantedeschia aethiopica were studied. The results showed that the suitable dyeing density, time and pH for different plant pigment were Tartrazine（9g/L, 6h, 7.1）, Ponceau 4R（12g/L, 5h, 8.5）, Fruit Green （6g/L, 5.5h, 6.0）, Sun Set Yellow（9g/L, 5h, 9.2）, Amranth（9g/L or 12g/L, 6h, 9.4）. The vase life became shorter after dyeing but still had 5-8 days for ornament.