Seyed Fazel Mirahmadi

Velayat university · Department of Agriculture and natural resources

BACKGROUND Oxalic acid is a common antinutrient in the human diet, found in large quantities in spinach. However, spinach is highly regarded by vegetable producers because of its nutritional content and economic value. One of the primary purposes of spinach‐breeding programs is to improve the nutritional value of spinach by adjusting oxalate accumu...

Iran is considered as one of the main centers of diversity of spinach species and one of the biggest producers, worldwide. However, there is no comprehensive information on the chromosomal characteristics of its wild species and the possible association of these indices with morphological and physiological features. The present study was conducted...

In this study, the chemical composition of essential oil isolated by hydrodistillation from the aerial part of Achillea biebersteinii, growing wild in Iran was analyzed by GC and GC-MS. Eleven compounds were identified, representing 96.6% of total components. 1,8-cineole (45.2%), p-cymene (20.8%) and cis-chrysanthenyl acetate (20.4%) were found to...

Background: In the recent decade, artificial drying has been one of the most important needs of the pharmaceutical industries. In addition, different drying methods have different effects on the quantity and quality of the essential oils produced from medicinal plants. Objective: The main objective of this study was to evaluate the effects of diff...

Drying affects essential oil content and composition of aromatic plants. In this study the effect of drying temperature and air velocity on the chemical content and composition of the essential oils of Lavandula officinalis was evaluated. For this purpose aerial parts without inflorescence (just leaves and stems) of this plant were collected at ful...

Phlomis cancellata Bunge. is a native plant belongs to Labiatae family which can used more in modern medicine and different industries for its essential oil particulars, in addition to Iranian folk medicine. In this study, P. cancellata were collected in full flowering stage from mountain of Gaduk area in Mazandaran province, Iran. The aerial parts...

The seasonal variation in the yield and compositions of the essential oil from samples of Thymus fedtschenkoi Ronniger collected in west Iran is reported. Essential oil was obtained by hydrodistillation in a Clevenger type apparatus. Analysis was performed by GC and GC-MS. The yield in essential oil showed a maximum at the flowering stage (2.9 %) a...

Tanacetum polycephalum subsp. duderanum, a member of Asteraceae family, is an endemic plant of Iran. In this study, volatile constituents of the aerial parts of the plant were investigated by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). In total, 26 components representing about 98.4 % of its composition were identified...

In this study, the chemical composition of essential oils from twenty-three wild populations of Achillea biebersteinii Afan., growing wild in different parts of Iran, were determined by means of gas chromatography (GC) and GC–mass spectrometry (GC–MS) analyses. Based on the dry weight of samples, the oil content of studied populations varied from 0...

In this study, the essential oil content and composition of Achillea biebersteinii Afan. at different phenological stages including vegetative, floral budding, full flowering (leaves, stems and flowers) and fruit set were studied by means of gas chromatography (GC) and gas chromatography–mass spectometry (GC–MS). All oil samples from different plan...

Chemical composition of essential oils from five populations of Thymus daenensis Celak. subsp. daenensis, an important medicinal plant endemic to Iran, was investigated by means of GC and GC/MS. All oils were characterized by a high content of monoterpenoid compounds, especially oxygenated ones (75.4–83.0%), and a small amount of sesquiterpenes (1....

In this study, genetic diversity among 25 populations (each population 6 plants) of Achillea bieberstenii Afan. collected from 12 provinces of Iran using a total of 35 morphological and agronomical characteristics including 31 quantitative and 4 qualitative traits was evaluated as an important step for possible use in the breeding programs of this...