摘要
采用分光光度法测定了不同桑种不同种质春、秋桑叶总黄酮含量。分析的12份种质中,9份种质秋季桑叶总黄酮含量高于春季,3份种质春季总黄酮含量高于秋季。鲁桑、广东桑、瑞穗桑、白桑相比较,白桑叶总黄酮含量最低。在单因素试验基础上,通过正交试验,优化了桑叶总黄酮的提取工艺。最佳提取工艺为乙醇浓度70%、提取温度80℃、料液比1:20、提取时间1h。
The total flavonoids content(TFC) in spring and autumn mulberry leaves from different species and germplasm resources were determined by spectrophotometry.Among 12 mulberry germplasm resources,TFC in 9 accessions are higher in autumn than in spring,and other 3 accessions are higher in spring than in autumn.Compared to Morus multicaulis,Morus atropurpurea and Morus mizuho,TFC in Morus alba leaves is the lowest.Moreover,based on single factor tests,the orthogonal tests were used in the optimization of technol...
出处
《食品科学》
EI
CAS
CSCD
北大核心
2009年第4期72-75,共4页
Food Science
基金
国家茧丝绸发展风险基金第五批发展性项目(国茧协办[2003]40号)
中国农业科学院蚕业研究所科研发展基金项目(SP200501)
江苏科技大学人才项目(2005CY002J)
关键词
桑叶
总黄酮含量
分光光度法
提取工艺
mulberry leaves
total flavonoids content
spectrophotometry
extraction technology
