挥发油

Compared with the common vegetable oil, the fatty acid composition of anise seed volatile oil was similar, while fatty acids content of anise seed shell volatile oil was little, as spices is still the first choice.

用索氏法分别提取八角籽和果壳挥发油，用气相色谱法测定了挥发油中八种脂肪酸的含量，与常见植物油比较，八角籽挥发油与其他食用植物油脂肪酸组成类似，而八角壳油的脂肪酸含量较低，作香料仍然是首选。

The common chemical constituents were juniper camphor,1,3,3-trimethylcyclohex-1-ene-4-carboxaldehyde,borneol,α-curcumene,α-bisabolol,cis-caryophyllene,benzyl benzoate,methyl β,β-dimethylbenzenepropanoic acid ester,2,4-decadienal and heneicosane in the essential oil of the five cultivars' Hangjuhua.Among them,juniper camphor is most which were composed of 11.96%,10.51%,10.95%,13.28% and 10.77% of the total essential oil,and methyl β,β-dimethylbenzenepropanoic acid ester is second,which were composed of 1.51%,1.86%,2.52%,4.89% and 2.51% of the total essential oil,respectively.

5种栽培类型杭菊花挥发油中共有成分为1，3，3-三甲基环己-1-烯-4-甲醛、冰片、α-姜黄烯、α-甜没药萜醇、顺式石竹烯、桧脑、安息香酸苄酯、β，β-二甲基苯丙酸甲酯、2，4-癸二烯醛和二十一烷；其中桧脑含量最高，分别占挥发油总量的11.96%，10.51%，10.95%，13.28%和10.77%，为5种栽培类型杭菊花挥发油中最具特征的成分；其次是β，β-二甲基苯丙酸甲酯，分别占挥发油总量的1.51%，1.86%，2.52%，4.89%和2.51%。

Results: the yield rate of the collected volatile oil of artemisia indica and artemisia feddei was 0.32%, 0.29%, respectively. the main constituents of them were as follows: eucalyptol, camphor, borneol, terpineol, cubebene, caryophyllene, caryophyllene oxide, germacrene d, etc, which was similar to the constituents of volatile oil from artemisia argyi. but the contents of volatile oil were different in different medicinal materials. longiverbenone with high content in artemisia feddei was can not be detected in artemisia indica and artemisia argyi.

结果：广西产五月艾与细叶艾挥发油的得率分别为0.32%、0.29%；五月艾、细叶艾和艾叶挥发油中均含有桉油精、樟脑、龙脑、松油醇、荜澄茄油烯、石竹烯及其氧化物、大根香叶烯d等药效成分，但各成分在不同药材中的含量存在一定差别；此外，细叶艾挥发油中含量较高的长叶马鞭烯酮在五月艾和艾叶挥发油中均未检出。

Essential oil was extracted from the petroleum ether-soluble fraction of the leaves showed having antibacterial activity. It was demonstrated that the essential oil has significant antibacterial activity and the activity of the petroleum ether-soluble fraction is attributed to it. The constituents of the essential oil were analysized by GC-MS.10 relatively abundant components were identified on the basis of MS, among which Geranlgeraniol was found in the essential oil of Perilla frutescens leaves for the first time.

对具有抗菌活性的紫苏叶石油醚萃取物进一步精制，从中提取出挥发油，通过抗菌测试证明紫苏叶挥发油具有良好的抗革兰氏阳性菌和革兰氏阴性菌活性，是紫苏叶石油醚萃取物抗菌活性的来源；采用GC-MS对紫苏叶挥发油进行了成分分析，得到10种含量较高的主要化合物，其中的牻牛儿基牻牛儿醇首次在该植物挥发油中被发现。

Methods Volatile oil was extracted from fresh tansy by vapor distillation.

水蒸气蒸馏法提取鲜艾叶挥发油，饱和水溶液法制取挥发油β-环糊精包合物，水蒸气蒸馏法再提取包合物中挥发油，紫外光谱法分析包合前后挥发油。

Results:The experiments showed that 59 components were identified,accounting for 72.91 percent of the total essential oil.The essential oil was mainly composed of dehydrocostuslactone、costunolide、cedrenol、α-elemene、1,3-cyclooctadiene、eudesmol、α-selinene、β-caryophyllene、-longifolene、3,4-octadiene,7-methyl-etc.Among them Lactones like Dehydrocostuslactone and costunolide are essential components.

结果：GC-MS法分析鉴定了木香挥发油中59个成分，其主要成分为去氢木香内酯、木香烃内酯、雪松烯醇、α-榄香烯、环辛二烯、桉叶醇、α-芹子烯、丁子香烯、长松叶烯、7-甲基-3，4辛二烯等，占挥发油总量的72.91%；首次发现木香挥发油及去氢木香内酯、木香烃内酯具有抑制ADP诱导的血小板聚集活性。

Our study was to analyze the chemical constituents of volatile oil from Chenopodium ambrosioides L.. The volatile oil was extracted by steam distilation.

采用水蒸气蒸馏法提取土荆芥挥发油，应用GC-MS对挥发油成分进行分析鉴定，鉴定了挥发油中的12种化学成分。

With the volatile oil content of Dalbergia odorifera as an index, the stability of the inclusion compound was examined under strong light, high temperature and volatilizing, respectively. In addition, the heat stability of the inclusion complex was investigated by DSC-TGA.

方法在不同溶媒的作用下以饱和水溶液搅拌法包合花梨木挥发油β-环糊精包合物，以花梨木挥发油含量为测定指标，分别对花梨木挥发油β-环糊精包合物和混合物进行强光照射、高温、挥发性实验并通过DSC-TGA对包合物进行了热稳定性研究。

Results: the results showed that extracts of Artemsia dracunculus L. at the dose of 7.5%,3.75%,1.875% 20 ml/kg.w, can cause a signficant increase of WBC (P.05), thymus index, spleen index,(P.05) phagocytic rate and phagocytic index of phagocyte,(P.05) the transformation rate of the spleen lymphocytes,(P.05) and the serum IL-2(P.05),serum hemolysin concentration 50%( P.05)in immunodepressed mice. Conclusions: extracts oil from Artemsia dracunculus L. can significantly enhance the non-specific, cell-mediated and humoral immunological function in immunodepressed mice.

结果：与模型组比较，椒蒿挥发油各组均能升高小鼠外周血白细胞数(P＜0.05)；均能升高胸腺指数(P＜0.05)、脾指数(P＜0.05)；均能提高免疫受抑小鼠腹腔巨噬细胞的吞噬率，吞噬指数(P＜0.05)；均能升高脾淋巴细胞转化率(P＜0.05)；椒蒿挥发油各组血清IL-2值明显高于环磷酰胺对照组(P＜0.05)；椒蒿挥发油各组均可升高小鼠的血清半数溶血值(P＜0.05)。

ConclusionMicrowave extraction has the highest yield in the shortest time. But volatile oil in Heracleum hemsleyanum Diels extracted by supercritical CO2 extraction or steam distillation has better quality.

结论微波萃取挥发油得率最高，时间最短；超临界CO2和水蒸馏法萃取挥发油的质量最好，因此使用超临界CO2是萃取牛尾独活挥发油的最佳途径。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。