The chemical composition of essential oils isolated from the leaves of Juniperus oxycedrus by hydrodistillation was analyzed by GC-MS. 42 compounds, representing 96.73% of total oil, were identified. J. oxycedrus oil was found to be rich in α-pinene (39.63%), manoyl oxide (12.34) and z-caryophyllene (4.1%) and characterized by relatively high amounts of monoterpenes hydrocarbons and sesquiterpe...

Apical meristems and nodal plant parts were used for mass propagation of Peperomia obtusifolia. Different concentrations of BAP (6-benzylaminopurine), TDZ (Thidiazuron) and KIN (Kinetin) were used in MS medium. The highest shoot proliferation and multiplication formation occurred in the MS basal medium containing 1.0 mg/mL BAP. Maximum number of shoots and shoot lengths were 9.80 ±0.50 and 35.4...

Nepeta L. is one of the important genus in Lamiaceae family. It includes ca. 300 herbaceous species and mostly grows Eurasia. represented Turkey by 40 taxa these 16 are endemic. commonly utilized traditional medicine local people, primarily as spasmolytic, diuretic, bronchodilator agents. As a consequence studies on taxa, terpenoids flavonoids have been identified most common components. In thi...

The present study reports a bioassay-guided isolation of β-caryophyllene from the essential oil of Aquilaria crassna. The structure of β-caryophyllene was confirmed using FT-IR, NMR and MS. The antimicrobial effect of β-caryophyllene was examined using human pathogenic bacterial and fungal strains. Its anti-oxidant properties were evaluated by DPPH and FRAP scavenging assays. The cytotoxicity o...

Leaf-cutting ants are pests of great economic importance due to the damage they cause to agricultural and forest crops. The use of organosynthetic insecticides is the main form of control of these insects. In order to develop safer technology, the objective of this work was to evaluate the formicidal activity of the essential oils of two Hyptis pectinata genotypes (chemotypes) and their major c...

Compositions of true lavender (Lavandula angustifolia) and spike lavender (Lavandula latifolia) essential oils, cultivated and extracted in the Southeast of Spain, were determined by gas chromatography coupled with mass spectrometry detection, obtaining both relative (peak area) and absolute (using standard curves) concentrations. Linalool (37-54 %), linalyl acetate (21-36 %) and (E)-β-caryophy...

The Adolpho Ducke Forest Reserve is a fragment of the Amazon Rainforest that has highest density collections deposited in INPA herbarium, and this characterized, vascular flora been an important basis for chemical studies. This paper describes composition volatiles aerial parts four species Protium occurr Reserve. essential oils obtained by hydrodistillation were analyzed using GC-FID GC-MS. P....

The constituents of the essential oil of Stachys laxa Boiss. & Buhse growing wild in Iran were investigated by GC-MS for the first time. Thirty-three constituents were identified. Germacrene-D (40.1%), b -caryophylene (16.7%), b -phellandrene (5.5%), caryophyllene oxide (4.6%), linalool (3.2%) and ?-cadinol (2.6%) were found to be the major constituents of the oil.

The constituents of the essential oil of Stachys laxa Boiss. & Buhse growing wild in Iran were investigated by GC-MS for the first time. Thirty-three constituents were identified. Germacrene-D (40.1%), b -caryophylene (16.7%), b -phellandrene (5.5%), caryophyllene oxide (4.6%), linalool (3.2%) and ?-cadinol (2.6%) were found to be the major constituents of the oil.

BACKGROUND Under aerobic conditions, acetic acid is the major byproduct produced by E. coli during the fermentation. And acetic acid is detrimental to cell growth as it destroys transmembrane pH gradients. Hence, how to reduce the production of acetic acid and how to utilize it as a feedstock are of intriguing interest. In this study, we provided an evidence to produce β-caryophyllene by the en...