background and objectives: dracocephalum kotschyi is a plant which belongs to the lamiaceae family and exists mostly in south-west asian countries, including iran. this plant is used as antispasmodic, analgesic and anti-inflammatory to treat rheumatoid diseases. methods: in order to investigate the impact of the harvesting time changes on the quantity and quality of mono- and sesquiterpenoid co...

the object of this research was to find an alternative to fungicide for the prevention of postharvestfruits. therefore the effect of zataria multiflora essential oil on the quality of sultana grapes followingthe harvest was investigated. the essential oil was extracted by hydro-distillation and analyzed using acombination of gc and gc/ms. the results indicated a high percentage of anti-fungal c...

background: artemisia species with common persian name of dermaneh are found all over iran and are used for treatment in infectious diseases such as malaria, hepatitis and other diseases. some artemisia species are used in traditionally as tonic and anti-helmintic in north of iran. objective: the aim of this study was to investigate chemical composition of the essential oil of artemisia hausskn...

Background & Aim: Peppermint (Mentha piperita L.) oil is one of the most popular and widely used as an essential oil. The aim of this study was to identify of the chemical components of peppermint cultivated in Isfahan climatic conditions. Experimental: The aerial parts of the plants were collected from a filed in Meymeh, Isfahan province in 2012. The essential oil was extracted by a ...

The volatile oil from the stem bark of Scutia buxifolia (Rhamnaceae) has been obtained by hydrodistillation and analyzed by GC-MS. Twenty-one components were identified representing 99.93 % of the total oil composition, spathulenol (35.87%), β-cubebene (17.26%), germacrene D (6.43%), linalool (5.19%), carvacrol (4.05%) were the main components of S. buxifolia essential oil. Antioxidant and anti...

b a ckground: application of plant derivatives have been suggested as alternative sources for mosquito control. m ethods: the root essential oil and methanol extract of c ionura erecta (l.) griseb was tested under laboratory conditions for larvicidal and skin repelleny activities against anopheles stephensi . the chemical compositions of essential oils were analyzed using gas chromatography- ma...

water-distilled essential oil of ferulago macrocarpa (umbelliferae) fruits was analyzed using gc-ms for the first time. forty-two components comprising 99.5% of the total oil were identified, of which bornyl acetate (40.8%), 2,3,6-trimethyl benzaldehyde (7.2%), δ-selinene (5.5%), 1,10-di-epi-cubenol (5.1%), germacrene d (3.5%), β-phellandrene (3.5%) and α-pinene (3.4%) were found to be the majo...

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...

     The essential oil obtained by hydrodistillation of the aerial parts of Rosa damascenea Mill. was analyzed by GC/MS. The yield of the oil was 0.16% (V/W). Among twenty five components, eight components, representing 99.98% of the oil, were characterized. Nonadecane (39.73%), heneicosane (32.38%), docosane (7.34%), citronellol (6.14%) and 9-nonadecene (5.69%), were found to be major...