Volatile components from Rhizoma Alpiniae Officinarum were respectively extracted by three methods including hydrodistillation, headspace solid-phase microextraction (HS-SPME) and diethyl ether extraction. A total of 40 (hydrodistillation), 32 (HS-SPME) and 37 (diethyl ether extraction) compounds were respectively identified by gas chromatography-mass spectrometry (GC/MS) and 22 compounds were ...

The chemical composition, antioxidant and antibacterial activities of essential oil from peel of Citrus unshiu which cultivated in South Korea were investigated. Eight compounds were identified as l-limonene (88.11%), γ-terpinene (4.66%), cyclohexane, 2,4-diisopropenyl-1-methyl-1-vinyl (1.82%), diethyl phthalate (1.02%), β-linalool (0.97%), β-myrcene (0.91%), α-farnesene (0.91%) and o-cymene (0...

UNLABELLED BACKGROUND The biological importance of members of genus Ferula promoted us to investigate the leaves of Ferula vesceritensis Coss et Dur. (endemic plant) previously not investigated. This study presents the chemical composition and antibacterial activities of the hydrodistilled oils. RESULTS Volatile components of the leaves of F. vesceritensis have been studied by gas chromato...

Phalaenopsis is the most important economic crop in the Orchidaceae family. There are currently numerous beautiful and colorful Phalaenopsis flowers, but only a few species of Phalaenopsis have an aroma. This study reports the analysis volatile components present in P. Nobby's Pacific Sunset by solid-phase microextraction (SPME) coupled with gas chromatography (GC) and gas chromatography/mass s...

The chemical composition of the volatile oil from aerial parts of Hypericum triquetrifolium Turra was studied by GC-MS. Fifty components (97.1% of the total composition) were detected in the volatile oil. Germacrene-D (21.7%), β-caryophyllene (18.3%), δ-cadinene (6.4%), trans-β-farnesene (4.3%), α-humulene (3.8%), β-selinene (3.7%), γ-cadinene (3.3%) and trans-phytol (3.2%) were found to be the...

A genetic screen to identify mutants that can increase flux in the isoprenoid pathway of yeast has been lacking. We describe a carotenoid-based visual screen built with the core carotenogenic enzymes from the red yeast Rhodosporidium toruloides. Enzymes from this yeast displayed the required, higher capacity in the carotenoid pathway. The development also included the identification of the meta...

Based on the previously researches, this manuscript comprehensively analysed chemicals in essential oil (EO) from pericarp of Nanfengmiju, a variety Citrus kinokuni Hort. ex Tanaka. The isolated crystals EO were mainly composed series alkanes. In total, 33 alkanes identified, which 14 ones firstly reported peels EOs L., to best my knowledge. Previously, neglected and never thought as chemical m...

Background & Aim: White horehound (Marrubium vulgare L.) is a perennial medicinal plant of the family Lamiaceae. The aim of this study was to identify of the chemical components of white horehound collected from Isfahan.  Experimental: The aerial parts of M. vulgare were collected from (Kamu Mountain) Isfahan province central of Iran, during 2014. The essential oils of sample...

The objective of this study is determination the volatile compounds of Matricaria chamomilla of an inorganic–organic hybrid material based on ZnO nanoparticles anchored to a composite made from polythiophene and hexagonally ordered silica (ZnO/PT/SBA-15) as a solid-phase fiber microextraction (SPME). Microextraction techniques with nanoparticles ZnO/PT/SBA-15 resulted in a more efficient analyt...

Leucas zeylanica is one of the most precious gifts nature to entire civilization. It offers folkloric system a dependable option heal numerous diseases like- burning urination, toothaches, common skin diseases, gout, inflammatory conditions, rheumatic abdominal pain, worms, anorexia, colic, flatulence, etc. Many these ancient practices have got their scientific resemblances using as an agent fo...