Essential Oil of Betula pendula Roth. Buds

The essential oil of Betula pendula Roth. buds was obtained using both hydrodistillation and microdistillation techniques and their chemical compositions were analyzed using both gas chromatography (GC) and gas chromatography–mass spectrometry (GC-MS). Overall, more than 50 compounds were identified representing 80% and 92% for hydrodistillation and microdistillation, respectively. The main components (by hydrodistillation and microdistillation, respectively) found were α-copaene (12% and 10%), germacrene D (11% and 18%) and δ-cadinene (11% and 15%) in the analyzed essential oils. The microdistillation technique proved to be a useful tool and compliant alternative when compared to hydrodistillation

Composition of the essential oil of Echinophora lamondiana B. Yildiz et Z. Bahcecioglu

Essential oil from hydrodistilled herbal parts of Echinophora lamondiana (Umbelliferae), a newly described endemic species of Turkey, was analyzed by GC/MS. Forty-three compounds representing 99.1% of the oil were identified with delta-3-carene (48.00/0), alpha-phellandrene (27.7%) and p-cymene (7.4%) as main constituents

Effect of brining on biological activity of leaves of Vitis vinifera L. (Cv. Sultani Cekirdeksiz) from Turkey

Leaves of Vitis vinifera (Fam. Vitaceae) cv. 'Sultani Çekirdeksiz' cultivated in Manisa-Alaşehir in western Turkey, were processed with or without brine. Fresh, brined, and nonbrined leaves (after being subjected to 3 months of fermentation) were sampled and extracted with distilled water under reflux. Antioxidant, anti-inflammatory, and anti-nociceptive activities of the water extracts were investigated using in vitro and in vivo methods. Free radical scavenging activity (1,1-diphenyl-2-picrylhydrazyl, DPPH • assay), iron(III) reductive activity (reducing power activity assay), capacity of inhibition of linoleic acid peroxidation (ferric thiocyanate and thiobarbituric acid method), anti-nociceptive activity (p-benzoquinone- induced abdominal constriction test), and anti-inflammatory activity (carrageenan-induced hind paw edema model) were used to determine biological activities of the extracts. In addition, the contents of total phenolics, flavonoids, and flavonols in the extracts were determined by spectrophotometrical methods. Results were compared with those of ascorbic acid, butylated hydroxytoluene, and gallic acid as reference antioxidants. The extracts of fresh, brined, and nonbrined leaves showed almost the same activity in all antioxidant assays. These extracts inhibited the oxidation of linoleic acid to the same extent as BHT. Compositions of the extracts were analyzed by a reverse phase HPLC-PDA method. The occurrence of hydroxycinnamic acids (e.g., caffeic acid) and flavonoids (e.g., quercetin) was verified in the extracts. The content of total flavonoids as well as quercetin was increased by fermentation

Composition of the essential oils of scutellaria galericulata and S. Tortumensis from Turkey

The genus Scutellaria L. (Lamiaceae) is represented by 39 taxa in Turkey. The ratio of endemism in Turkey is 43.6%. The chemical compositions of the essential oils obtained by hydrodistillation of Scutellaria galericulata and S. tortumensis from Turkey were analyzed by gas chromatography and gas chromatography-mass spectrometry, simultaneously. The main components were determined as caryophyllene oxide (27.5%), β-caryophyllene (13.4%) and caryophylla-2(12),6-dien-5β-ol (4.8%) in the oil of S. galericulata. Germacrene D (29.8%), β-caryophyllene (17.1%) phytol (8.3%) and nonacosane (7.1%) were found as major components in the oil of S. tortumensis. Overall, S. galericulata and S. tortumensis essential oils representing 88.6% and 94.3% of the total, respectively. © 2019, Badebio Biotechnololgy Ltd. All rights reserved