摘要
用正交试验优化沙棘叶总黄酮的提取工艺,结果表明:醇提法的最佳工艺为:提取温度70℃,乙醇浓度50%,两次提取时间分别为2 h,1.5 h;水提法的最佳工艺:提取温度为回流,两次提取时间分别为2 h,1.5 h,用水量100 mL,80 mL。乙醇提取法沙棘叶总黄酮的提取率为1.258 2%,水提法为0.927 8%。
Ethanol and water extraction technology about total flavones of Hippophe rhamnoids Linn （TFH） in leaves was screened by orthogonal experiment. The best ethanol extraction technology was determined as follows： at 70 ℃ for 2 h,1.5 h with 50 % ethanol in two ethanol extraction process. The best water extraction technology was determined as follows： circling extraction for 2 h, 1.5 h with volume of water 100 mL, 80 mL in two water extrac- tion.The extraction yield of TFH is 1.258 2 % by ethanol extraction and 0.927 8 % by water extraction.
出处
《食品研究与开发》
CAS
北大核心
2008年第8期110-113,共4页
Food Research and Development
关键词
沙棘叶
黄酮
提取
leaves of Hippophe rhamnoides Linn
flavonoids
extraction
