期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2007

33

4

506-509

湖南省科学技术厅项目（06SK3061）； 湖南农业大学稳定人才基金（2005WD12）；

本校为第一机构

通过研究超临界CO_2(SFE-CO_2)萃取压力、萃取温度、萃取时间和CO_2流速对灰毡毛忍冬挥发油萃取效果的影响,优化了山银花挥发油超临界CO_2萃取条件,并与水蒸气蒸馏法的提取效果进行比较,分析了湖南产湘蕾金银花与灰毡毛忍冬不同方法加工品的挥发油含量的差异.结果表明,萃取釜温度48 ℃,萃取釜Ⅰ温度50 ℃,萃取釜Ⅱ温度35 ℃,萃取釜压力28 MPa,萃取釜Ⅰ压力12 MPa,萃取釜Ⅱ压力5 MPa,CO_2流速18 L/h,萃取时间120～150 min为湘蕾金银花挥发油SFE-CO_2较佳的萃取条件;湘晒干、湘冻干、灰晒干、灰冻干等加工品挥发油的SFE-CO_2提取量分别为3.03,4.42,2.87,4.12 g,水蒸气蒸馏法提取量分别为0.036,0.0...

Optimization of SFE-CO2 method for naphtha of flos Lonicerae was determined by investigating the effects of pressure, temperature, time and CO2 flow velocity on the efficiency of naphtha extraction from flos Lonicera macranthoides, as opposed to that by steam distillation, and then, the differences of naphtha content by these two methods were compared, Results showed that the preferably SFE-CO2 condition to naphtha of flos Lonicerae was ： temperature 48 ℃ for extraction kettle ; 50 ℃ separation kettle Ⅰ ; 35 ℃ separation kettle Ⅱ ; pressu...