Essential Oil of Arischrada korolkowii from the Chatkal Mountains of Uzbekistan

The herbal parts of Arischrada korolkowii (Regel et Schmalh.) Pobed. (Lamiaceae) growing in Uzbekistan were hydrodistillated to yield 1.1% of essential oil. The essential oil was analyzed by GC/MS. Eighty eight compounds were characterized representing 98% of the essential oil with 1,8-cineole (29.3%), camphor (9.8%), -caryophyllene (8.5%), bornyl acetate (7.7%), caryophyllene oxide (7.2%), and borneol (5.6%) as the main constituents.     

Isolation of Some Soluble and Dispersed Materials of Oregano Water

Recent results obtained on determining the extraction efficiency and composition of organic volatiles in Oregano Water obtained from Origanum onites L. are described. Oregano Water was subjected to liquid-liquid extraction with a range of solvents with different polarities and each extract was analyzed by GC/MS.     

Composition and Antimicrobial Activity of the Essential Oil of Origanum × dolichosiphon P. H. Davis

The essential oil obtained by hydrodistillation from aerial parts ofOriganum × dolichosiphonP. H. Davis (Lamiaceae), a hybrid ofO. AmanumPost ×O. LaevigatumBoiss., was analyzed by GC/MS. Ninety-five compounds were characterized representing 92% of the oil. The major compounds were bicyclogermacrene (19.9%),-caryophyllene (13.0%), and germacrene D (10.8%). The antimicrobial activity of the oil was also determined     

Comparative Study of the Essential Oils of Heracleum sphondylium ssp. Ternatum Obtained by Micro- and Hydro-distillation Methods

The volatile compounds obtained by hydro- and micro-distillation methods from crushed fruits of Heracleum sphondylium ssp. ternatum (Velen.) Brummitt were analyzed by GC/MS. Both distillation methods and analysis results were compared.     

新开花粉蛋白的盐酸胍去折叠过程

本文利用荧光光谱和园二色光谱了新开花粉蛋白的盐酸胍去折叠过程。结果显示：新开花粉蛋白的盐酸胍去折叠是一个只包含天然蛋白和变性终态的二态过程,与已经报道的天花粉蛋白的盐酸胍去折叠的过程不同。     

Review of nanofluids for heat transfer applications

Research on nanofluids has progressed rapidly since its enhanced thermal conductivity was first repotted about a decade ago,though much controversy and inconsistency have been reported,and insufficient understanding of the formulation and mechanism of nanofluids further limits their applications.This work presents a critical review of research on heat transfer applications of nanofluids with the aim of identifying the limiting factors so as to push forward their further development.     

Lipids and essential oil ofOriganum onites

Neutral lipids, glycolipids, phospholipids, pigments, and essential oil of the above-ground part ofOriganum onites L. (Lamiaceae) are isolated and characterized for the first time. The fatty-acid composition of the lipids and the components of the hydrocarbons, sterols, and essential oil are determined by GC/MS. Linolenic and palmitic acids dominate in the acids of the lipids. The main components of the hydrocarbons are nonacosane; of the sterols, \-sitosterol; of the pigments, chlorophylls a and b. A total of 54 components are identified in the essential oil.Presented at the IIIrd International Symposium on the Chemistry of Natural Compounds, Bukhara, Uzbekistan, 19–22 December, 1998.Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 106–109, March–April, 2000.     

Essential oils of three species of <Emphasis Type="Italic">Heracleum</Emphasis>. Anticandidal activity

Fruits of Heracleum crenatifolium Boiss., Heracleum sphondylium L. subsp. ternatum (Velen.) Brummitt, and Heracleum platytaenium Boiss. (Umbelliferae) were hydrodistilled to obtain essential oils that were then analyzed by GC and GC/MS. The major component was identified as octyl acetate (93.7, 87.6 and 31.6% respectively). Octyl butyrate was also characterized as the main component in H. platytaenium oil. Furthermore, anticandidal activity of the oils was evaluated using the microdilution broth method. All the oils showed good inhibitory effects against C. glabrata.Published in Khimiya Prirodnikh Soedinenii No. 6, pp. 448–450, November–December 2004.This revised version was published online in April 2005 with a corrected cover date.