introduction sahandian savory (satureja sahandica bornm.) is an indigenous perennial aromatic plant growing in the west and north west of iran. its growing season starts from march till end of september. oil and its quality are abundantly variable among different savory species (ahmadi et al., 2009). although, thymol, p-cymene and γ-terpinen have been determined as the main components of sahand...

Background: Thymus daenensis is on e of the endemic aromatic species in Iran that its essential oil is used in food and pharmaceutical industries. Objective: In this study, the effects of plant growth stages and distillation methods on essential oil content and thymol percentage of this species were evaluated. Methods: The aerial parts of Th. daenensis were collected in three stages of plan...

Polycyclic aromatic hydrocarbon (PAH) levels were determined in tissues of wild mussels (Mytilus galloprovincialis) collected at 17 stations along the Cantabrian coast (N Spain), from Navia (Asturias) to Fuenterrabía (Basque Country), in order to assess the extent of the environmental impact caused by the Prestige oil spill (November 13, 2002). Six sampling campaigns were carried out in April, ...

A potential new alternative oilseed crop from the genus Lesquerella is being domesticated for the southwestern United States and other arid climates of the world. This crop has seed oil rich in hydroxy fatty acids used to produce a variety of industrial, cosmetic, and pharmaceutical products. Many of the industrial products are replacements for non-degradable and non-renewable petroleum-based p...

A total of 270 fingerlings of Asian sea bass (Lates calcarifer) were allotted into three equal treatments with three equal replicates for each to investigate the effect of dietary supplementation of two levels of Black cumin seeds (Nigella sativa) and Turmeric (Curcuma longa) mixture (BTM) on growth performance and blood chemistry throughout the experimental period (98 days). Fish of the first ...

Tall oil fractions obtained from Norwegian spruce pulping were hydrodeoxygenated (HDO) at pilot scale using a commercial NiMo hydrotreating catalyst. Comprehensive two dimensional gas chromatography (GC×GC) showed that HDO of both tall oil fatty acids (TOFA) and distilled tall oil (DTO) produced highly paraffinic hydrocarbon liquids. The hydrotreated fractions also contained fatty acid methyl e...

Biodiesel is an alternative diesel fuel made from renewable biological resources. During the process of biodiesel production, lipase-catalyzed transesterification is a crucial step. However, current techniques using methanol as acyl acceptor have lower enzymatic activity; this limits the application of such techniques in large-scale biodiesel production. Furthermore, the lipid feedstock of curr...

to evaluate the effects of planting date and plant density on morphological characteristics, including essential oil content of ajowan (trachyspermum ammi) a study was conducted during the years 2003 and 2004 at the experimental farm, faculty of agriculture, ferdowsi university of mashhad. treatments were laid out in a factorial form based on a complete randomized block design of three replicat...

background & aim:mentha longifolia (l.) huds is an aromatic perennial herb that belongs to the   family lamiaceae. the aim of this study was to identify chemical composition of aerial parts   (including leaf, stem and flowers) of m. longifolia collected from   (kamu mountain) isfahan province. experimental: the essential oils were extracted   using the hydrodistillation method and analysed by g...