The effect of cold argon plasma on the activity of oxidative enzymes of important commercial soybean cultivars used in aquatic diets
Subject Areas : New Technologies in Aquaculture Development
1 - Physics Department, Faculty of Converging Sciences and Technologies, Science and Research Branch, Islamic Azad University, Tehran, Iran
Keywords: Antioxidant, soybean, Keywords: Cold plasma, Argon, Aquatic diets,
Abstract :
Abstract Cold plasma due to its temperature in the range of 25-100° C under atmospheric or even lower pressure, can be employed to improve healthy and quality of crops. By using this technique, industrial food developers are not forced to employ chemical materials or other toxic methods. In the present study, the impact of cold argon plasma on 4 cultivars and 2 within cultivar (class) of soybean seeds cultivars used in aquatic diets was studied. In this manner, activity of catalase, ascorbate peroxidase and superoxide dismutase were measured respectively by Chance-Maehly, Nakano-Asada and Giannopolitis-Ries. The observations confirmed the activity of catalase, ascorbate peroxidase and superoxide dismutase increased as 0.88-4.40, 0.4-4.01 and 0.86-5.89 fold, respectively. The corresponding values were obtained by the plasma for 60 s and almost all enzymes indicated a lower activity with the plasma treatment for 420 s. These observations confirmed that for promotion of seed germination and enzyme activity, the plasma for 60 s with the frequency and voltage of 8 kHz and 5 kV is needed. In contrast, the longer exposure times make a lower physiological activity in seeds. In general, this method is suggested to reach healthier and heavier seeds.
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