Moslem Mousavian; Eidi Bazgir; Aref Moradpour
Abstract
Cinnamon essential oil has been used for centuries to protect food from microbiological infection and in the last ten years. Cinnamon essential oil is also incorporated into food packaging materials as antimicrobial agent. The Main objectiveof the present study was to determine the antifungal activity ...
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Cinnamon essential oil has been used for centuries to protect food from microbiological infection and in the last ten years. Cinnamon essential oil is also incorporated into food packaging materials as antimicrobial agent. The Main objectiveof the present study was to determine the antifungal activity of cinnamon essential oil against Botrytis cinerea, Aspergillus niger and Penicillium digitatum fungi isolated from grapes, tomato, and orange. Cinnamon Essential oil was extracted by the Clevenger-type apparatus and identification and amount of the essential oil was performed by using chromatography–mass spectroscopy and gas chromatography. Analysis of the total essential oil content showed that cinnamaldehyde (89.51%), cinnamyl acetate (4.56%), cinnamaldehyde (p-methoxy) (0.97%) and cubebene (0.29%) were the major constituents. The minimum inhibitory concentrations of cinnamon oil against B.cinerea, A. niger and P. digitatum were 200 µl/l and minimum fungicidal concentrations were 400 µl/l for three pathogens. The antifungal activity of cinnamon oil against A. niger and B.cinerea was stronger than that against P. digitatum in MIC concentration and the activity was improved with increasing its concentration. In vivo study, the fungi in the vicinity of concentration 600 µl/l of cinnamon essential oil grown in fruits, 11.53% for strawbery, 7.30% for tomato and 10.10% for orange. These results revealed that cinnamon essential oil has a good potential to be as a natural antifungal agent for control postharvest fruit and vegetables disease.
siavash ariafar; Ali Reza Sirousmehr
Abstract
In order to study the effects of water stress and municipal compost on qualitative and quantitative characteristics of Nigella sativa, this experiment was conducted in 2012 at the Agricultural Research Station of University of Zabol, Iran in a complete randomized block in split plot design with three ...
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In order to study the effects of water stress and municipal compost on qualitative and quantitative characteristics of Nigella sativa, this experiment was conducted in 2012 at the Agricultural Research Station of University of Zabol, Iran in a complete randomized block in split plot design with three replications. Treatments included irrigation intervals: Every seven days (without stress), every nine days (mild stress) and every 12 days (severe stress) and municipal compost treatments include: without municipal compost application (control), 10, 20 and 30 tons per hectare. The results showed that the effect of water stress was significant on the biological and seed yield, proline and chlorophyll (a). Also biological yield, grain yield and chlorophyll (a) decreased in water stress condition. But proline content in leaves increased with increasing stress level. According to results highest biological yield, grain yield, essential oil percentage, proline, chlorophyll a, chlorophyll b, total chlorophyll and carotenoids were obtained In municipal compost application. The Interaction between water stress and municipal compost treatments on chlorophyll a, chlorophyll b, total chlorophyll and carotenoid were significant. According to results, the best treatment at the increase on seed yield and essential oil content were application 30 tons per hectares of municipal compost in Zabol weather conditions.
mahboubeh Ashnavar; Mohammad Ali Bahmanyar; Vahid Akbarpour; Nayereh Ghorbani
Abstract
Fertilizer management is one of the most important factors in successful cultivation of medicinal plants. Meanwhile, identification of eco-friendly and suitable fertilizers could have favorable effects on quantitative and qualitative indexes of plant. For this purpose, an experiment was conducted based ...
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Fertilizer management is one of the most important factors in successful cultivation of medicinal plants. Meanwhile, identification of eco-friendly and suitable fertilizers could have favorable effects on quantitative and qualitative indexes of plant. For this purpose, an experiment was conducted based on factorial in a completely randomized design with two factors, nanophosphorus for foliar application (0, 2 and 4 g.l-1) in three stages and vermicompost (0, 5 and 10 percent by weight of pot soil), in Sari Agricultural Sciences and Natural Resources University with three replications in 2014. Results indicated that all traits such as number of flower per plant, fresh and dry flower yield, essential oil percentage, essential oil yield and kamauzolen percentage were affected by different fertilizer treatments. The highest number of flower per plant, fresh and dry flower yield and essential oil yield was obtained using 2 g.l-1 nanophosphorus + 10 percent vermicompost and the lowest amount was belonged to control. The maximum essential oil percentage (4.46 percent) was obtained by applying the highest levels of fertilizer (4 g.l-1 nanophosphorus + 10 percent vermicompost) that increased 43 percent compared to the control. Also, kamauzolen percentage was the highest amount in control (15.9 percent) which positioned in the same statistical level with 2 g.l-1 nanophosphorus + 5 percent vermicompost (15.43 percent).