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1 - Optimization of the Extraction Process of Aqueous and Alcoholic (Ethanol) Extracts of Allium Ampelloprasuml Plant by Response Surface Methodology and Its Antioxidant Effect on Soybean Oil Stability over Shelf Life
الهام Azadfar Maryam Sabetghadam زهره Bahrami بیتا Beyzaei

Plants contain phenolic compounds ranging from simple molecules such as phenolic acids to highly polymerized molecules such as tannins Phenols and polyphenols in plant tissues have gained increasing scientific interest because of their potential beneficial effects on hu More

Plants contain phenolic compounds ranging from simple molecules such as phenolic acids to highly polymerized molecules such as tannins Phenols and polyphenols in plant tissues have gained increasing scientific interest because of their potential beneficial effects on human health..In this study, Allium ampelloprasum L plant was prepared and homogenized from Sabzevar. The extraction was performed by the ultrasound extraction method using ethanol and water solvent. The amount of and antioxidant compounds of extracts was investigated by and DPPH methods, respectively. The results of the optimization process have shown that the optimum conditions of alcoholic extraction were determined as 17.81 minutes with the concentration of 800. Also, the optimum conditions for the aqueous extraction were determined as the concentration of 800 ppm and the time of 13.52 minutes. According to the optimization results, the extraction amount of antioxidant compounds in aqueous and alcoholic extractions were reported as 33.893-33.499, respectively. The results of the oxidative stability of oil have shown that the peroxide and thiobarbituric acid index in water and alcoholic extraction were 1.938-3.158 and 0.173-0.337, respectively. Manuscript profile
Open Access Article
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2 - Antioxidant Effect optimization of ethanol extract of Cirsium vulgare on oxidative stability of soybean oil and comparison with synthetic antioxidant (BHT)
الهام Azadfar Maryam Sabetghadam زهره Bahrami بیتا Beyzaei
10.30495/jfm.2021.683625

Various factors such as oxygen, light, heat, metal ions and enzymes can affect the oxidative stability of oils and lipids and finally, oxidative rancidity can occur. The application of synthetic antioxidants has been questioned to delay oxidative rancidity due to their More

Various factors such as oxygen, light, heat, metal ions and enzymes can affect the oxidative stability of oils and lipids and finally, oxidative rancidity can occur. The application of synthetic antioxidants has been questioned to delay oxidative rancidity due to their toxicity and carcinogenic probability. This study aims to optimize the oxidant performance of an ethanolic extract of Cirsium vulgare on oxidative stability of soybean oil and compare it with synthetic antioxidants (BHT). In this study, Cirsium vulgare extract was extracted under the influence of concentration (100-300 ppm), duration hours and temperatures . After performing different experiments on the extraction of the best extraction conditions, the best extraction conditions were determined using response surface methodology and extraction in optimum conditions. Data analysis was carried out. The results of the optimization process showed that the oxidative stability of oil showed that; time 24.0 min and concentration 100/01temperature 44/745 were determined. Results showed that the optimum sample of Cirsium vulgare in the stability of soybean oil during storage time was more effective than synthetic antioxidant (BHT), due to higher levels of phenolic compounds and antioxidant present in the optimized sample of Cirsium vulgare. Manuscript profile

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List of Articles مریم ثابت قدم