Ferula assa-foetida gum oleoresin (FAGO) is traditionally used for treatment of different ailments. The subject of this article was to evaluate the chemical composition and antibacterial effects of the different types of bitter FAGO essential oils in the natural habitat of Southwest Iran. α-pinene (38.2%), and (Z)-propenyl sec-butyl disulfide (12.4%) were the main components of F. assa-foetida tear type essential oil, with high antibacterial, anti-biofilm and cytotoxic activities, followed by paste and mass types, respectively. α-pinene (27.8%), and (Z)-propenyl-sec-butyl disulfide (24.2%) were identified as main components of paste type. α-pinene (33.4%), β-pinene (16.3%), and (Z)-propenyl sec-butyl disulfide (16.1%) were the main components of asafoetida mass type gum oleoresin essential oil. FAGO essential oil specially tear one could serve as suitable candidate for further studies.

In the present study, productivity, essential oil variability and antioxidant activity of Ferula assa-foetida oleo-gum-resin (OGR) collected at different collection times (July, August, September, ...

Kelussia odoratissima Mozaff. is a medicinal species native to Iran. The goal of this research was to determine the environmental factors important for the distribution of K. doratissima in Iran using BMLR modeling. Six random transects were established throughout the species’ habitat, and 220 quadrats with an area of 4 m² were plotted. The canopy cover percentages of K. doratissima were estimated in each quadrat. Topographic factors, including elevation, slope, and aspect maps, were generated by creating DEM images. Land use, land evaluation, evaporation, temperature, and precipitation maps of the area were created accordingly. The data collected from the experiments were analyzed using the Minitab and R statistical packages. To determine the effect of the studied factors in the distribution of K. doratissima, we ran a set of backward multiple linear regressions. The results showed that the effects of evaporation, elevation, and slope were significant in the species’ distribution, with elevation having a positive effect and evaporation and slope showing negative effects. Further, elevation had the highest effect on distribution (greatest absolute value of beta at 9.660). The next most significant factors in the plant’s distribution were evaporation (beta = 8.282) and slope (beta = 0.807), respectively.

Boiss. is an vulnerable plant species which is applied as gastrointestinal invigorator and stimulants in traditional medicine. A study was done to investigate the variation of essential oil (EO) composition of this species among seven wild populations distributed in various microclimates of Zagros Mountain, Iran. Based on the gas chromatography analyses, twenty-one constituents were monitored including 98.6–99.2% of the EO compositions. The major chemical components of essential oils were α-phellandrene (23.7–36.2%), α-pinene (9.5–24.8%), β-myrcene (3.3–17.5%), linalool (1.8–6.7%), β-phellandrene (3.4–5.5%), methyl eugenol (1.1–15.1%), citronellol (0.5–6.4%) and verbenone (1.9–4.9%). Classification of populations revealed four main chemotypes. There were a positive and significant correlation between soil organic carbon and α-terpineol and a negative correlation between α-phellandrene and β-phellandrene contents and the soil EC. The observed variability among the studied populations can provide the best source of materials with favorable components for industrial uses and pharmaceutical industries.