Question

请高手帮忙翻译一下以下文字 翻译成英文 最好不要使用翻译器 十分感谢！

本文对虎皮兰天然色素的提取方法及稳定性进行研究。对提取剂的选择、溶剂浓度、提取温度和提取时间进行单因素试验和正交试验，确定最佳提取工艺条件为乙醇为最佳提取溶剂，乙醇浓度为40%，提取温度为60 ℃，提取时间为70min。虎皮兰绿色素的稳定性研究表明，其耐高温、耐光性较差，不同金属离子对色素稳定性影响较显著；其色素的抗氧化还原能力较差；在酸性条件下较为稳定，在碱性条件下变色。

Answer 1

This article conducts the research to the fierce appearance blue natural pigment's extraction method and the stability. To the extractant choice, the solvent strength, the extraction temperature and the extraction time carry on the single factor experiment and the orthogonal test, the determination optimum extraction technological conditions for the ethyl alcohol for the optimum extraction resolver, the ethyl alcohol density are 40%, the extraction temperature is 60 ℃, the extraction time is 70min. The fierce appearance blue green pigment's investigation into stability indicated that its thermostable, the light resistance is bad, the different metal ion pair pigment stability influence is remarkable; Its pigment's oxidation resistance reducing ability is bad; Is stabler under the acidic condition, changes color under the alkalinity condition.