the essential oils of peucedanum ruthenicum m. bieb. (umbelliferae) leaves, flowers and fruits were prepared by hydrodistillation and analyzed by gc and gc-ms and the composition of the three essential oils were compared. thirty-three, thirty-seven and thirty-one compounds were identified in leaves, flowers and fruits essential oils representing 89.13%, 88.66% and 76.45% of total oils respectiv...

background & aim: salvia spinosa l. is a perennial shrub and aromatic plant belongs to the family lamiaceae. s. spinosa grows wild in some districts of iran. the aim of this study was to identify of the chemical components of s. spinosa in isfahan climatic conditions. experimental: the aerial parts of the plants were collected from isfahan province in 2014. the essential oil was extracted ...

Comprehensive gas chromatography-mass spectrometry (GC×GC-MS) provides a different perspective in metabolomics profiling of samples. However, algorithms for GC×GC-MS data processing are needed in order to automatically process the data and extract the purest information about the compounds appearing in complex biological samples. This study shows the capability of independent component analysis...

background & aim: elaeagnus angustifolia and elaeagnus orientalis have a lot of medical utilization. in folk medicine, the fruit and flower of these plants are used as a tonic and antipyretic agent. the aim of the present study was to chemical analysis of volatile constituents of e. angustifolia and e. orientalis flowers.  experimental: the essential oils of e. angustifolia and e. orientali...

background & aim: saline lands can be utilized by planting native medicinal plants tolerant to salinity. the quantity and quality these plants are changed during various seasons in agriculture systems. thus, this study carried out under salinity stress in order to examine the effect of sowing in two seasons on growth characteristics and essential oil  components of ajowan (carum capticum l....

in this experiment, the chemical composition of the essential oils obtained from ferula assa-foetida oleo-gum resin collected from two different sites of yazd province (tabas and yazd) in the center of iran, were identified. the gas chromatography mass-spectroscopy (gc/ms) data showed that the qualitative composition of the components appeared to be constant in two different regions. moreover, ...

background and objectives: several natural compounds have been identified for the treatment ofleishmaniasis. due to a few safe drugs and the side effects caused by available chemotherapy, some new drugs for treatment of leishmaniasis are requested.  the genus pulicaria (asteraceae) is represented in the flora of iran by five species. phytochemical studies on pulicaria species have revealed some...

dibutyl phthalate (dbp) is a phthalic acid ester and is widely used in polymeric products to make them more flexible. dbp is found in almost every plastic material and is believed to be persistent in the environment. various analytical methods have been used to measure dbp in different matrices. considering the ubiquitous nature of dbp, the most important challenge in dbp analyses is the contam...

cucumber is one of the main vegetables in iranian food basket. a wide range of pesticides are used for crops protection during the cultivation of vegetables such as cucumber due to heavy pest infestation. analysis of pesticide residues in food and other environmental commodities have become essential requirement for consumers, producers, and food quality control authorities. this study was aime...

the chemical composition of the hydrolate of citrus aurantium l. (rutaceae) flowers (neroli) grown in iran, and two commercial hydrolates were analyzed by gc/ms. thirty compounds (90.3%) were identified in the hydrolate by the use of laboratory apparatus, thirty-eight compounds (83.4%) in the hydrolate from the traditional method and fifteen compounds (98.3%) in the industrially produced sample...