栀子黄色素浸提条件的优化选择研究

Study on Selective Preference of Gardenia jasminoides Pigment Extraction Condition

应用正交设计 L16（44×23）就栀子黄色素浸提的果实破碎度、浸提次数、浸提温度、浸提时间和液比共 5 个因子与浸取液中栀子黄吸光度、果胶量的相关性进行了试验研究，结果表明果实破碎度和浸提次数为影响光度显著效应因子，果实破碎度和浸提温度为影响胶量显著因子。在此基础上，选择出了果实破碎度 20 目、浸提时间 35 min、浸提温度 20 ℃、液比 4 ml/g、二次浸提为栀子黄色素浸提的较优条件。在此条件下，栀子黄色素浸提所得的液状产品得率为 15.5 %。

Experiment by orthogonal design L16（44×23) on correlation of seed fragmentation degree, extracting fre-quency, temperature, duration and solution ratio with absorbance and pectin content of Gardenia jasminoides pigment extract demonstrated that seed fragmentation degree and extracting frequency had evident influence on absorbance while seed fragmentation degree and extracting temperature on pectin content. Therefore, the preference condition for G. jasminoides pigment extract was as followed: seed fragmentation degree of 20 mesh, extracting duration of 35 minu-tes, extracting temperature of 20℃, solution ratio of 4 ml / g, two times extraction. With the above-mentioned condition, liquid extract yielded 15.5%.