background: thymus daenensis celak. is one of the medicinal plants which cultivated in iran. this plant involve high amount of polyphenols including thymol and carvacrol, which were reported to possess the high antioxidant activity. objective: antioxidative activity (aoa) and chemical constituents of thymus daenensis essential oil (tdeo) were examined. also, the effect of thermal treatments (80...

background & aim: staphylococcus aureus is one of the bacterial pathogens and the most important factor in hospitalized infections in human community. this bacterium is becoming resistance to chemical drugs quickly. lots of countries are trying to find new compositions as a suitable replacement for these antibiotics. the aim of this study was antibacterial activity and chemical composition ...

this study aims to investigate the essential oils content of thymbr spicata l. in two times before flowering and full flowering in shirpenah area in ilam province. both samples were dried out in shade and without humidity. then 50 grams of each sample were powdered after obtaining the essential oils by hydro distillation using a clevenger apparatus for 2 hours. resulted oils were dried by anhyd...

The peel which is the primary waste of citrus fruit processing usually discarded. But these peels are good source pectin, phenols, flavonoids, and limonene. can be used to extract essential oil that in food system. present study aimed extraction analyse chemical composition by hydrodistillation soxhlet methodThe optimum condition for method was standardized efficient at 95 °C. time 3 hours with...

Aerial parts of the plant (250 g) were collected during flowering in April 2000 from Tehran province in Iran. The essential oil was obtained by steam distillation of air-dried aerial parts in an all-glass apparatus. The sample oil that was light yellow in color was dried over anhydrous sodium sulfate and stored under nitrogen in a sealed vial until required. The essential oil was examined by GC...

Background: The post-harvesting process of medicinal plants such as drying operation and storage conditions has great influence on their quality and quantity of the active ingredients. Objective: The aim of this experiment was to investigate the effect of pre-drying operation and also storage conditions and duration on the essential oil content and composition of Thymus daenensis. Methods: A ...

The essential oil extracted from the soft coral of Sinularia sp. have been extracted by soxhlet and analyzed by gas chromatography coupled to mass spectrometry (GC–MS). The principal compounds were found to be δ-Cadinene (12.4%), α-terpinene (10.7%) and α-Muurolene (8.3%). It is worth mentioning the presence of sesquiterpenes and diterpenes as main compounds of the essential oil. This is the fi...

In this research, essential oils (EOs) were extracted through steaming from aerial parts of three plants: basil (Ocinum basilicum L.), peppermint (Mentha piperita L.) and oregano (Origanum vulgare form Sibiu County, Romania. The GC-MS analysis indicated that eugenol apiol the major compounds in EO. Timol, ɣ-terpinene, p-cymene volatile oil menthol methone main components first 48 h analysis, EO...

Aerial parts of the plant (250 g) were collected during flowering in April 2000 from Tehran province in Iran. The essential oil was obtained by steam distillation of air-dried aerial parts in an all-glass apparatus. The sample oil that was light yellow in color was dried over anhydrous sodium sulfate and stored under nitrogen in a sealed vial until required. The essential oil was examined by GC...