摘要
通过正交试验优化荷叶叶绿素提取工艺,并对荷叶叶绿素的稳定性进行了研究。结果表明,提取荷叶叶绿素的优化工艺:以85%丙酮为提取剂,料液比1:8,提取温度50℃,提取时间1.5h。稳定性研究表明:色素对酸和高温的耐受性差,光照能加速色素降解;大多数金属离子对其影响不大,但Al3+、Fe3+明显影响其稳定性,Cu2+有增色作用;对H2O2和抗坏血酸都敏感。
Extraction conditions of chlorophyll from lotus leaves and their stability were investigated by orthogonal test in this study. The optimal extraction conditions of chlorophyll are determined as follows： the content of acetone solution as extraction solvent 85%, the ratio of material to solvent 1：8, extraction temperature 50℃ and extraction time 1.5 h. The chlorophyll exhibited a poor stability to acidity, heat and sunlight. No significant effect of metallic ions was found at low concentration. However, Fe2＋ and Al3＋ had a negative effect and Cu2＋ had a positive effect. It was very sensitive to H2O2 and ascorbic acid.
出处
《中国酿造》
CAS
北大核心
2010年第9期105-108,共4页
China Brewing
基金
四川省教育厅青年基金项目(2006B078)
校级青年基金项目(2007Q05)
关键词
荷叶
叶绿素
提取
稳定性
lotus leaves
chlorophyll
extraction
stability
