这些分子集中在可用于香精香料的萜烯中，有些是很昂贵的。
The molecular family it concentrates on is the terpenes, which are used as fragrances and flavours. Some are very costly.
萜烯和烃类是已知的在参与反映过程中会产生烟雾的物质。
Terpense and hydrocarbons are known, however, to participate in the reaction which can cause smog.
结果表明：轮叶蒲桃叶片挥发油主要为萜烯与萜烯醇类化合物。
The results showed that the major components were sesquiterpenoid and terpenol of the volatile oils.
目的通过克隆技术获得参与檀香挥发油形成的萜烯合成酶基因。
Objective To clone the terpene synthase gene from Santalum album l. which participates in the synthesis of essential oil.
该低甜度蔗糖的制备步骤是：在一个容器里配制三萜烯糖苷溶液；
The low-saccharinity cane sugar comprises the following preparation steps: a triterpene glycoside solution is prepared in a container;
以松节油为基础的萜烯马来树脂在各种不同的部门得到广泛的应用。
Terpene - Maleic resins based on turpentine have wide usage in different industry department.
树木分泌的天然化学物质异戊二烯和萜烯被认为可保护树叶免受过多热量和阳光的伤害。
Trees produce natural chemicals, called isoprene and terpene, that are thought to protect their leaves from too much heat and sunlight.
目的探讨氮酮、杜香萜烯两种渗透促进剂对复方骨质增生贴剂透皮渗透的影响。
RESULTS Both Azone and Lepaloine at different concentrations have the role of enhancing permeation.
挥发物在种间存在差异，正常的复叶槭挥发大量的萜烯，而杨柳产生苯系物较多。
There were some difference among species. Health ashleaf maple released more terpenoids, but poplars and willow produced more aromatic compounds.
一些被报道具有这种作用的蕈类生物活性物质是灰侧耳菌素、重菇醇、三萜烯、灵芝醇、腺苷等等。
Some such reported bioactive substances from mushrooms are pleurotin, sparassol, triterpenes, ganoderols, adenosine etc.
这个简单经济的方法得 到高品质的萜烯酯，同时避免了其它常用酰基化方法中的废物处理问 题。
The simple, economical process gives high-quality terpene esters while avoiding waste-disposal issues of other common acylation procedures.
这项研究指出，在更温热的气候条件下，植物会制造出更多的萜烯 ——为植物提供香气的化学物质。
The study suggests that plants are able to produce more terpenes – the chemicals that give them their smell - in hotter conditions.
这项研究指出，在更温热的气候条件下，植物会制造出更多的萜烯罅——为植物提供香气的化学物质。
The study suggests that plants are able to produce more terpenes - the chemicals that give them their smell - in hotter conditions.
催化通用的二萜类前体香叶基香叶基二磷酸产生同向柯巴基二磷酸的II类萜烯合酶也被定位在这个区域内。
The class II terpene synthase producing syn-copalyl diphosphate from the universal diterpenoid precursor geranylgeranyl diphosphate was also mapped to this same region.
研究了萜烯烃和萜烯醇对水曲柳生长的影响程度、结果表明：萜烯烃明显抑制水曲柳的生长．萜烯醇的抑制作用稍弱。
The result showed that the terpenes obviously inhibited the growth of ash. and the inhibitat-ion of terpenols was weaker slightly.
如檀香的精华就是一种萜烯，[font=宋体][size=10.5pt]对其浓烈香味的需求导致了产此香精的檀香树变得稀缺。
Sandalwood essence, for example, is a terpene, and the demand for its potent smell means the tree it comes from is becoming rare.
紫杉烯合酶是一种二萜环化酶，催化牛儿基牛儿基焦磷酸形成紫杉醇生物合成过程中的中间体紫杉烯。
Taxadiene synthase, a diterpene cyclase, catalyzes the conversion of geranylgeranyl diphosphate (GGPP) to taxadiene, a key intermediate in Taxol biosynthesis in yew.
冬凌草甲素是从冬凌草等植物叶子中提取出的一种贝壳杉烯二萜类化合物，具有好的抗肿瘤活性。
Oridonin anent-kaurene diterpenoid compound mainly isolated from the leaves of R. rubescen. Oridonin has been proved to possess good antitumor activity .
结果表明：生姜挥发油的主要化学成分是萜类化合物茨烯蒎烯水芹烯姜烯和冰片等。
The results show that terpene compounds in the volatile oils were identified. The higher chemical components in the volatile oil are camphene, pinene, phellandrene, zingiberene and borneol.
该科植物主要含三萜皂苷、环烯醚萜苷、黄酮、挥发油等类型的化合物。
The main chemical constituents from dipsacaceae species were triterpenoid saponins, iridoidal glycosides, flavonoids, essential oils, etc.
目的：研究大孔吸附树脂分离纯化川西獐牙菜中环烯醚萜苷类和酮类成分的工艺。
Objective:To study the separation and purification technology of secoiridoid glycosides and xanthones from Swertia mussotii Franch.
通过对原材料进行研究，筛选出杜仲鲜皮为提取环烯醚萜化合物京尼平甙酸（GPA）、桃叶珊瑚甙（AU）和京尼平甙（GP）的原料；
Base on the choice of various raw materials, fresh bark was chosen to extract Iridoids compounds such as geniposidic acid (GPA), aucubin (AU) and geniposide (GP).
目的观察烯萜醇对大鼠胃腺癌的治疗作用。
Objective The experiment is to observe the effect of Xi Tie alcohol on adenocarcinoma of stomach in rats.
类萜是从植物中分离出的一类类异戊二烯物质，其中挥发萜类物质直接影响着植物的芳香品质。
Terpenoid is a class of isoprenoids isolated from plants, of which volatile terpenoids are directly involved in aroma formation in plants.
这一令人鼓舞的消息源于这样一个发现：较低的白蜡树枯梢病易感性与较低水平的植物化学物质“环烯醚萜苷类”(iridoid glycosides)之间存在关联。
The encouraging news comes from the discovery of a link between reduced susceptibility to ash dieback and lower levels of plant chemicals called iridoid glycosides.
优选栀子总环烯醚萜苷的提取工艺路线。
The objective of the study is to optimize the process for extraction technology of total iridoid glycoside of Cape Jasmine Fruit.
优选栀子总环烯醚萜苷的提取工艺路线。
The objective of the study is to optimize the process for extraction technology of total iridoid glycoside of Cape Jasmine Fruit.
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