نتایج جستجو برای: cineole
تعداد نتایج: 853 فیلتر نتایج به سال:
Terpenoids form the largest and stereochemically most diverse class of natural products, and there is considerable interest in producing these by biocatalysis with whole cells or purified enzymes, and by metabolic engineering. The monoterpenes are an important class of terpenes and are industrially important as flavors and fragrances. We report here structures for the recently discovered Strept...
The chemical composition of the essential oil of Etlingera yunnanensis rhizomes and its contact and repellent activities against Tribolium castaneum (Herbst) and Liposcelis bostrychophila (Badonnel) were investigated. The essential oil obtained from E. yunnanensis rhizomes with hydrodistillation was performed by gas chromatography-flame ionization detection and gas chromatography-mass spectrome...
Gene therapy is in its development stage as a novel method for cancer treatment. Liposomes look promising as gene delivery vectors; however, investigations have shown that these vesicles are not doing well in some cases. It was decided here to investigate the possibility of augmentation of liposomal gene delivery by chemical penetration enhancers. Cationic liposome containing antisense oligonuc...
The concept of plant chemotype has long been useful to describe secondary chemical phenotypes; however, the idea has practical limitations, especially when applied to ecological questions. This work reports the discovery of a new 1,8-cineole chemotype of Thymus vulgaris from a well-studied area in southern France. Multivariate statistical analysis of ethanol-extracted plant terpenes was used to...
A simple method to transform the easily available 1,8-cineole (1) into the more valuable compound seudenone, 3-methyl-2-cyclohexenone (4), a sex pheromone of Dendroctonus pseudotsugae Hopkins, is described. © 2000 Elsevier Science B.V. All rights reserved.
We examined multivariate evolution of 20 leaf terpenoids in the invasive plant Melaleuca quinquenervia in a common garden experiment. Although most compounds, including 1,8-Cineole and Viridiflorol, were reduced in home compared with invaded range genotypes, consistent with an evolutionary decrease in defense, one compound (E-Nerolidol) was greater in invaded than home range genotypes. Nerolido...
Cytochrome P450cin (CYP176A1) is a bacterial P450 isolated from Citrobacter braakii that catalyzes the hydroxylation of cineole to (S)-6beta-hydroxycineole. This initiates the biodegradation of cineole, enabling C. braakii to live on cineole as its sole source of carbon and energy. P450cin lacks the almost universally conserved threonine residue believed to be involved in dioxygen activation an...
Neuroprotective Effects of 1,8-Cineole on Apoptosis Inhibition and Bcl-2/Caspase-3 mRNA Expression in the Hippocampus Epileptic Pilocarpine Model Rats
در این تحقیق آنالیز شیمیایی اسانس استخراج شده از دو گیاه anthemis rhodocentra وpulicaria gnaphalodes مورد بررسی قرار گرفت. در گیاه anthemis rhodocentra ترکیبات مهم موجود در روغن اسانسی: n-octane(35.21%) ,n-decane(6.19%), ,borneol(5.45%) ,spathulenol(7.42%) caryophyllene oxide ((5.92% می باشد. همچنین در این گیاه درصد مونوترپن ها (12.93%) و درصد سزکوئی ترپن ها(28.71%)است. در گیاه anthemis rhodo...
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