查询词典 myrcene

The results of analysis showed that the contents of low boiling point components such asα-pinene,camphene,β-pinene,α-phellandrene and β-myrcene in flower oil,which are 17.58 %,13.19 %,1.13 %,2.03 % and 1.02 % respectively, are lower than those in leaf oil.

分别提取迷迭香叶与迷迭香花的精油，并用气相色谱和质谱联用技术分析其组成及含量，共识别出30个成分，鉴定出20个。

Obducta to nine kinds of larch volatile compositions, namely R-α-pinene, S-α-pinene,β-pinene, ocimene, phellandrene, 3-carene, myrcene, camphene and phytol with EAG and Y-tube olfactometer. The results showed that 0.4 molL^(-1), most volatile compositions had significant EAG responses compared with the blank control (P.05), with exception of females to R-α-pinene, males to R-α-pinene and phellandrene.

结果表明：在0.4molL^(-1)浓度下，雌蛾除了对R-α-蒎烯、雄蛾除了对R-α-蒎烯和水芹烯没有明显EAG反应外，对其余挥发物的EAG反应与对照相比差异均达到显著水平(P.05)，并且雌、雄虫之间的EAG反应也存在一定的差异。

Compareing with essential oil of the steam distillation method and the bensine solvent extraction method through GC-MS analysis .The result showed that:the essential oil principal constituent extracted by benzine is camphene,a-pinene,bornyl acetate, limonene, 1-methyl-4-(1-methylethyl)-1,4-cyclohexadiene, myrcene, caryophyllene, borneol.

对巴山冷杉针叶水蒸气蒸馏和石油醚萃取所得精油的GC-MS 分析对比研究结果表明：石油醚萃取精油主要成分为：莰烯，a-蒎烯，乙酸龙脑酯，柠檬烯，1-甲基-4-异丙基-1，4-环己二烯，月桂烯，石竹烯，龙脑。

Among them,--α-Pinene、--β-Pinene、--3-Carene are the three main compounds which account for above 96% of monoterpines, and a small amount of other monoterpines,-limonene, myrcene, camphene, phellandrene.

而对于经常构成蠹类害虫树体引诱剂组分的萜烯类成分在其中占居较高的比重，主要为3种成分--3-蒈烯，--α-蒎烯和--β-蒎烯，占萜烯类总量96％以上。另外还含有少量的柠檬烯、香叶烯、莰烯和萜品油烯等成份。

Results Ten essential characteristic components have been identified in thirteen batches of Amomum villosum samples, and their relative content was (88.15±2.97)%, which are the representative components. The main components were α-pinene, camphene,β-pinene,β-myrcene, limonene, linalol, camphor, isoborneol, borneol and borneol acetate.

结果 13批次阳春砂仁均含有α-蒎烯、茨烯、β-蒎烯、β-月桂烯、柠檬烯、芳樟醇、樟脑、异龙脑、龙脑、乙酸龙脑酯等10个主要特征成分，合计相对含量达(88.15±2.97)%，具有一定代表性。

When the tree changes from health to weak, the main terpene compounds changed, such as the amount of 3-carene, isolimonene,β-pinene, 4-carene were significantly enhanced, and santolina triene,α-fenchene,β-myrcene,β-phellandrene were declined. It will provide a basis for Monochamus urussovi Fischer to select suitable parasitic Picea jezoensis.

鱼鳞云杉树势由健康向衰弱转变时，主要烯萜类化合物含量发生变化，3-蒈烯、异柠檬烯、β-蒎烯、4-蒈烯、α-蒎烯等含量显著上升，而神圣亚麻三烯、α-葑烯、β-月桂烯、β-水芹烯等含量下降，这些烯萜类化合物的变化，为云杉大黑天牛定位选择适宜寄生的鱼鳞云杉提供了依据。

The main components of santolina essential oil are artemisia ketone; vulgarone;β-Phellandrene; curcumene; myrcene; sabinene; and β-Pinene, accounting for 83.44 percent of the total content and 887.5μL/kg·FW in terms of absolute content.

2银灰菊精油主成分为蒿酮、vulgarone、β-水芹烯、姜黄烯、月桂烯、桧烯、β-蒎烯等，总百分含量占83.44%，总绝对含量为887.5μL/kg·FW。

After ultra high pressure treatment, limonene concentration was decreased greatly while myrcene and α-pinene concentrations were not changed significantly and the concentration of limonene was decreased by 75% after high pressure treatment of 500 MPa for 15 min,α-terpineol and carvone concentrations were increased significantly. The aldehydes concentrations were retained well. The ester concentrations were changed under high pressure treatment, but generally their concentrations were not changed remarkably.

通过定量检测分析发现：超高压处理对橙汁中的柠檬烯成分影响很显著，经500 MPa的压力处理15 min后其含量下降了75%，而月桂烯和α-蒎烯受高压影响较小；α-松油醇、香芹酮含量经高压处理后迅速增加；醛类特征香气成分基本不受高压影响；酯类成分在高压下会发生变化，但总体变化不显著。

Linear dimerization of isoprene to form myrcene ;2. Synthesis of Unsaturated Cyclothioethers byCycloaddition Reactions of Myrcene;3. The traditional synthesis is by the way of Diels-Alder reaction of myrcene with acrolein over Lewis acid catalysts in organic solvent.

二烷基咪唑或烷基吡啶卤化物与ZnCl2 构成一类新型的具有Lewis酸性的离子液体，以其为催化剂和反应介质，通过月桂烯与丙烯醛的Diels Alder反应高区域选择性地合成了对位柑菁醛。

Synthesis and Structural Analysis of New Monoterpene Derivatives from β-myrcene ;2. Diels-Alder reaction between β-myrcene and maleic anhydride catalyzed by SO2-4/TiO2-ZrO2 solid superacid was investigated.

研究了SO42-/TiO2-ZrO2型固体超强酸催化剂的制备及其催化β-月桂烯与马来酸酐的Diels-Alder反应，通过GC、GC-MS和红外分析，确定其主产物为4-(4-甲基-3-戊烯基)-4-环己烯-1，2-酸酐。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。