Topic
Terpene
About: Terpene is a research topic. Over the lifetime, 2208 publications have been published within this topic receiving 51480 citations. The topic is also known as: terpenes.
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TL;DR: In this article, the terpene and sesquiterpene hydrocarbons in celery essential oil that was recovered by two different methods were separated from the oxygen containing materials by column chromatography and analyzed by temperatureprogrammed gas chromatography.
Abstract: SUMMARY: The terpene and sesquiterpene hydrocarbons in celery essential oil that was recovered by two different methods were separated from the oxygen containing materials by column chromatography and analyzed by temperature-programmed gas chromatography. The essential oils were prepared from celery puree by a batch distillation procedure, and by vaporization in a Votator Turba-Film evaporator and rectification of the vapors in a packed distillation column. The terpenes α-pinene, β-pinene, myrcene, limonene, γ-terpinene and cymene; and the sesquiterpenes β-elemene, β-caryophyllene, α- and β-humulene and β-selinene were identified as constituents of the essential oils. The qualitative and quantitative relationships of the hydrocarbons between the two different oils were established and discussed.
26 citations
TL;DR: This was the first study to investigate the action of terpenes on AChE from susceptible and resistant R. (B.) microplus in correlation with their acaricidal activity.
26 citations
TL;DR: It is demonstrated that terpene synthases with substrate promiscuity are widely distributed in nature, forming a rich resource for engineering terPene biosynthetic pathways for biotechnology.
Abstract: Terpenes are the largest class of natural products with extensive structural diversity and are widely used as pharmaceuticals, herbicides, flavourings, fragrances, and biofuels. While they have mostly been isolated from plants and fungi, the availability and analysis of bacterial genome sequence data indicates that bacteria also possess many putative terpene synthase genes. In this study, we further explore this potential for terpene synthase activity in bacteria. Twenty two potential class I terpene synthase genes (TSs) were selected to represent the full sequence diversity of bacterial synthase candidates and recombinantly expressed in E. coli. Terpene synthase activity was detected for 15 of these enzymes, and included mono-, sesqui- and diterpene synthase activities. A number of confirmed sesquiterpene synthases also exhibited promiscuous monoterpene synthase activity, suggesting that bacteria are potentially a richer source of monoterpene synthase activity then previously assumed. Several terpenoid products not previously detected in bacteria were identified, including aromandendrene, acora-3,7(14)-diene and longiborneol. Overall, we have identified promiscuous terpene synthases in bacteria and demonstrated that terpene synthases with substrate promiscuity are widely distributed in nature, forming a rich resource for engineering terpene biosynthetic pathways for biotechnology.
26 citations
15 Jul 2005
26 citations
TL;DR: Two terpenoids, 12-methoxycarnosic acid and 3β-hydroxyoleanan-13β → 28 lactone, have been isolated from the leaves of Salvia lanigera, together with two known diterpenes and two triterbenes.
26 citations