M.B. Amiri; P. Rezvani Moghaddam; M. Jahan; M. Salehabadi; N. Naseri
Abstract
This research was aimed to investigate the effects of plant density and organic and chemical fertilizers on some phytochemical characteristics of Iranian ox-tongue (Echium amoenum Fisch. & Mey.). The study was conducted as a split plot experiment based on RCBD design with three replications, conducted ...
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This research was aimed to investigate the effects of plant density and organic and chemical fertilizers on some phytochemical characteristics of Iranian ox-tongue (Echium amoenum Fisch. & Mey.). The study was conducted as a split plot experiment based on RCBD design with three replications, conducted in 2011-2014, in Ferdowsi University of Mashhad, Iran. The main and sub plots included three plant densities (10, 5 and 3 plants per m2) and three types of organic fertilizers and one type of chemical fertilizer (compost, vermicompost, cow manure, nitrogen chemical fertilizer and control), respectively. The results showed that the highest antioxidant activity was obtained in a density of 10 plants per m2 (79 mg/ml) and the highest total phenols was observed in a density of 5 plants per m2 (51 mg GAE/g flower DW). Compost, vermicompost, cow manure and chemical fertilizer increased total phenols to 51, 35, 40 and 63%, respectively compared to control. Application of vermicompost and cow manure in a density of 3 plants per m2 increased total flavonoid up to 39 and 38%, respectively compared to control. The highest total anthocyanin was obtained in a density of 5 plants per m2. Vermicompost and cow manure increased the seed oil (10 and 13%), and seed protein content (34 and 13%), respectively compared to control. In general, according to the findings of this research, it seems that the use of eco-friendly inputs and determining the optimal density of Iranian ox-tongue could result in improving the quality and health of product and minimizing the damage caused by chemical inputs.
M. Shahi; M. Saghari; E. Zandi Esfahan; K. Jaimand
Abstract
Given the extent of saline lands in Iran, cultivation and utilization of halophytes and salt tolerant species under the condition that both water and soil are saline could be a viable option in production and extraction of vegetable oils from halophytes and salt tolerant species. The aim of this study ...
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Given the extent of saline lands in Iran, cultivation and utilization of halophytes and salt tolerant species under the condition that both water and soil are saline could be a viable option in production and extraction of vegetable oils from halophytes and salt tolerant species. The aim of this study was to investigate the potential of Suaeda fruticosa (L.) Forssk. and Salicornia herbacea L. as a source of edible oil as well as qualitative and quantitative analysis of the oil. For this purpose, the seeds of Suaeda fruticosa and Salicornia herbacea were collected from saline soils of Garmsar and Kal-e Shur Desert Research Station. In this study, a random sampling was done by replicated plots. The extraction of fatty acids was performed by solvent in Soxhlet method, and GC was used to analyze the fatty acids. The average oil yield was calculated to be 30.76 and 13.88% in Suaeda fruticosa and Salicornia herbacea, respectively. According to the results, in both species, palmitic acid and linoleic acid were identified as the major saturated and unsaturated fatty acids, respectively. Our data clearly indicate that the seeds of halophyte Suaeda fruticosa could be used as a source of oil for human consumption.
S. Saffarpour; M.H. Givianrad; P. Beheshti
Abstract
This paper is the first report on detection and determination of antioxidant compounds in seed oil of medicinal and edible shrub of Capparis spinosa L. collected from Dashte-Moghan. The results are expressed as the mean of three separate replications. Seed oil was extracted by hexane in a soxhelt apparatus ...
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This paper is the first report on detection and determination of antioxidant compounds in seed oil of medicinal and edible shrub of Capparis spinosa L. collected from Dashte-Moghan. The results are expressed as the mean of three separate replications. Seed oil was extracted by hexane in a soxhelt apparatus and 2.36% was recorded as the total percentage of unsaponifiable matter. Detection and determination of some of the components of the unsaponifiable matter which have antioxidant properties shows that 0.27 % of the oil is related to sterols. β-sitosterol (60%), campestrol (13%) and stigmasterol (10%) are as the most abundant sterols and this oil has a great potential source of -avenasterol (7%). Moreover, the sterol composition of this oil is comparable to peanut oil and olive oil. Total content of tocopherols and tocotrienols was 93.43 ppm which is too close to olive oil. In addition, g-isomer is predominant tocopherol. This oil is rich of beta-carotene (280mg/kg) that is close to the unbleached palm stearin. The total phenolic compounds were ignorable.
