检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:余汉谋 肖海鸿 姜兴涛 傅国锋 杨文彬 吴苑存 强耀锋
机构地区:[1]深圳波顿香料有限公司研发中心,广东深圳518051 [2]深圳市福田区中医院,广东深圳518033
出 处:《精细化工》2011年第12期1183-1187,1223,共6页Fine Chemicals
摘 要:采用微波辅助溶剂萃取法(MASE)提取千年健挥发油,并利用GC-MS技术对其化学成分进行了分析。最佳提取条件为:石油醚作溶剂,微波功率600 W,提取温度60℃,提取时间25 min,在该条件下提取的挥发油共鉴定出63种成分,主要为芳樟醇(相对质量分数23.411%,下同),7-乙酰基-2-羟基-2-甲基-5-异丙基二环[4.3.0]壬烷(5.222%),4-松油醇(3.971%)。与传统水蒸气蒸馏法(HD)比较发现,MASE法节省时间,得率更高,同时化学组成成分差异不大,是一种完全可以替代HD法提取千年健挥发油的高效、节能的提取技术。The essential oils were extracted from Homalomena occtdta by method of microwave-assisted solvent extraction (MASE). The chemical composition of the oils was identified using GC/MS technique. The optimum conditions were ascertained as follows: petroleum ether as solvent, the microwave power 600 W, extraction temperature 60 ℃, extraction time 25 rain. A total of 63 constituents were identified and the main chemical constituents were linalool (relative mass fraction 23. 411% ), 7-acetyl-2-hydroxy-2-methyl-5-isopropylbicyclo [ 4. 3.0 ] nonane ( 5. 222% ), 4-terpineol (3. 971% ). Compared with the conventional hydro-distillation (HD), MASE was found to be able to save time and produce a higher yield, yet with no significant difference of the chemical composition. Therefore, MASE was an ideal substitute for HD with its high efficiency and energy saving technology.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.3