Chemical studies on sesquiterpenes in so 中倍半萜化學(xué)成分的研究
Chemical studies on sesquiterpenes in soft coral lobophytum sp . from the south china sea 中倍半萜化學(xué)成分的研究
Two compounds with the purity higher than 95 % were obtained with this method 通過(guò)該方法,已得到兩個(gè)二氫沉香呋喃倍半萜類化合物,純度均在95 %以上。
The gc / ms analyses of oil samples from qhd32 - 6 oilfield show that bicyclic sesquiterpanes are abundant 摘要色譜質(zhì)譜分析結(jié)果表明,秦皇島32 - 6油田原油中含有豐富的雙環(huán)倍半萜。
A novel 1886bp full - length sesquiterpene synthase ( ases ) cdna was cloned from a high - yield artemisia annua strain 001 by race strategy 用race方法從青蒿高產(chǎn)株系001中克隆了一個(gè)新的1886bp的全長(zhǎng)倍半萜合酶cdna 。
Conclusion the essential oil from d . dasycarpus . is mainly consisted of sesquterpenoids and aliphatic acids , and the sesquterpenoids is the main active component 結(jié)論白鮮皮揮發(fā)油主要由倍半萜類化合物和長(zhǎng)鏈脂肪酸成分構(gòu)成,而倍半萜類化合物是其主要活性成分。
From gas chromatogram chart , in addition to less composition of volatile compounds , onion oleoresin contained more resin that has sharp flavor and pigment 從氣相色譜圖上可以看出,洋蔥油樹(shù)脂中除含少量洋蔥精油外,主要是沸點(diǎn)較高的倍半萜及代表辛香味的樹(shù)脂成分、色素等。
The best method for isolation and purification of - dihydroagarofuran sesquiterpene in celastrus angulatus is alternate normal - phase and reserve - phase high performance liquid chromatography 結(jié)果表明,對(duì)苦皮藤中富含二氫沉香呋喃倍半萜類化合物部分進(jìn)行分離的過(guò)程中,采用正相、反相高壓制備柱層析交替進(jìn)行的方法最為有效。
In these bicyclic sesquiterpanes , the relative abundance of the rearranged drimane is regularly changed in spatial distribution , which may indicate the characteristics of petroleum migration and accumulation in qhd32 - 6 oilfield 該油田雙環(huán)倍半萜中重排補(bǔ)身烷的相對(duì)豐度在縱向上和橫向上都表現(xiàn)出有規(guī)律的變化,這種規(guī)律性的變化可能反映了秦皇島32 - 6油田油氣運(yùn)移與聚集的特徵。
Artemisinin , a sesquiterpene lactone containing an endoperoxide bridge , is a kind of phytoalexin . sa , a key signal molecular during systemic acquaired resistance ( sar ) , is related to the biosynthesis of phytoalexin . aba , a stress - resistance plant hormone can influence the secondary metabolism to stimulate phytoalexin biosynthesis 青蒿素屬于萜烯類化合物(倍半萜類)是植保素( phytoalexin )的一種, sa是植物產(chǎn)生系統(tǒng)獲得性抗性的重要信號(hào)分子,與植保素的產(chǎn)生相關(guān)。