11-Hydroxy-2,4-cycloeudesmane from the Leaf Oil of Juglans regia and Evaluation of its Larvicidal Activity.

Leaves of Juglans regia L. collected from two different locations [Adana (A) and Ankara (B)] from Turkey were subjected to hydrodistillation in a Clevenger type apparatus to yield the essential oils (EOs). GC/MS and GC-FID analyses revealed that the A EO was rich in thymol (23.

High Amounts of n-Alkanes in the Composition of Asphodelus aestivus Brot. Flower Essential Oil from Cyprus.

There is only a couple of reports indicating essential oil composition of Asphodelus species in the literature. However, from the members of this genus many non-volatile secondary metabolites were isolated. In Cyprus, Asphodelus aestivus Brot.

Unexpected Irregular Monoterpene "Yomogi Alcohol" in the Volatiles of the Lathyrus L. species (Leguminosae) of Cyprus.

Lathyrus species including L. ochrus and L. sativus are known for their food, feed and horticultural uses.

Sitophilus granarius L. (Coleoptera) Toxicity and Biological Activities of the Essential Oils of Tanacetum macrophyllum (Waldst. & Kit.) Schultz Bip.

Insecticides of the natural origin are an important alternative to the synthetic insecticides that are being employed for the preserving stored products. The volatiles obtained from T. cinerariifolium (=Pyrethrum cinerariifolium) is being used for many types of insecticidal applications; however there is a very little information on the insecticidal activity of the essential oils of other Tanacetum species.

Antimicrobial and antioxidant activities of Stachys lavandulifolia subsp. lavandulifolia essential oil and its infusion.

Stachys lavandulifolia Vahl. subsp. lavandulifolia (Lamiaceae) is widely used in south Anatolia as a herbal tea.

One-step multiple component isolation from the oil of Crinitaria tatarica (Less.) Sojak by preparative capillary gas chromatography with characterization by spectroscopic and spectrometric techniques and evaluation of biological activity.

Gas chromatographic analysis revealed that the oil of Crinitaria tatarica was rich in sabinene (32.1%), β-pinene (8.8%), and two unknown (M+200) compounds (I) and (II) (21.

Antimicrobial activity and essential oil composition of a new T. argyrophyllum (C. Koch) Tvzel var. argyrophyllum chemotype.

Water-distilled essential oils from flowers and stems of Tanacetum argyrophyllum var. argyrophyllum from Turkey were analyzed by GC and GC/MS. The flower oil of T.

Microbial transformation of (-)-carvone.

The cyclic monoterpene ketone (-)-carvone was metabolized by the plant pathogenic fungus Absidia glauca. After 4 days of incubation, the diol 10-hydroxy-(+)-neodihydrocarveol was formed. The absolute configuration and structure of the crystalline substance was identified by means of X-ray diffraction and by spectroscopic techniques (MS, IR and NMR).

In vitro antioxidant properties and phenolic composition of Salvia virgata Jacq. from Turkey.

Antioxidant activities and phenolic compositions of the active fractions of Salvia virgata Jacq. (Lamiaceae) from Turkey were examined. The aerial part of S.

Antispasmodic and spasmogenic effects of Scolymus hispanicus and taraxasteryl acetate on isolated ileum preparation.

Taraxasteryl acetate was identified as the major triterpenoid of the ethanolic extract of the root bark of Scolymus hispanicus L. Antispasmodic and spasmogenic effects of the ethanolic extract, its fractions, taraxasteryl acetate, and a fluid extract of this plant were tested on isolated rat ileum preparations. The strong biphasic responses observed suggested a possible lithuretic activity of the compounds and the fractions tested.

A simple method to obtain essential oils from Salvia triloba L. and Laurus nobilis L. by using microwave-assisted hydrodistillation.

A microwave-assisted hydrodistillation protocol was modified to extract essential oils from leaves of Salvia triloba L. and Laurus nobilis L. The essential oils of these plants are generally obtained by hydrodistillation or steam distillation.

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.

Screening of free radical scavenging compounds in water extracts of Mentha samples using a postcolumn derivatization method.

An on-line high-performance liquid chromatography-1,1-diphenyl-2-picrylhydrazyl (HPLC-DPPH*) method has been improved for the detection of polar and nonpolar radical scavenging compounds in complex plant extracts. Nine water extracts were prepared from different Mentha species, varieties, hybrids, and cultivars. After the components within each extract had been separated by reverse phase chromatography using 10-100% methanol with 2% acetic acid as a mobile phase, analytes within the eluent capable of scavenging a citric acid-sodium citrate-buffered methanol 1,1-diphenyl-2-picrylhydrazyl solution were detected by postcolumn derivatization at 517 nm.

Testing Wound-healing Activity in T15 Fibroblast Cultures: A Morphometric Analysis.

The purpose was to evaluate the use of mouse T15 fibroblast cell cultures for the investigation of wound-healing activity. In order to investigate their mechanisms of action, the effects of drugs with wound-healing activities were compared by using morphometric analyses by microscopy after cell staining. A number of parameters were used to evaluate the effects of titrated extracts from Centella asiatica and dexpanthenol (drugs that have been used in medical practice for their wound-healing activities) on cultured mouse T15 fibroblasts.