Dielectric barrier discharge cold atmospheric plasma: Bacterial inactivation mechanism

2019 ◽  
Vol 39 (6) ◽  
Author(s):  
Oladipupo Odunayo Olatunde ◽  
Soottawat Benjakul ◽  
Kitiya Vongkamjan
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Atmospheric Plasma ◽  
Bacterial Inactivation ◽  
Dielectric Barrier ◽  
Cold Atmospheric Plasma ◽  
Inactivation Mechanism

scholarly journals An Application of Cold Atmospheric Plasma to Enhance Physiological and Biochemical Traits of Basil

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2088
Author(s):  
Faezeh Mirazimi Abarghuei ◽  
Mohammad Etemadi ◽  
Asghar Ramezanian ◽  
Ali Esehaghbeygi ◽  
Javad Alizargar
Keyword(s):  
Antioxidant Activity ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Leakage Rate ◽  
Atmospheric Plasma ◽  
Ion Leakage ◽  
Biochemical Traits ◽  
Dielectric Barrier ◽  
Cold Atmospheric Plasma ◽  
Physiological And Biochemical

This study aimed to investigate the effects of dielectric barrier discharge cold atmospheric plasma on the performance of basil (Ocimum basilicum L. cv. Genovese Gigante). Evaluations were carried out on several physiological and biochemical traits, including ion leakage, water relative content, proline and protein accumulation, chlorophyll and carotenoid contents, and antioxidant activity. Before planting, basil seeds were treated by cold atmospheric plasma under voltages of 10, 15, and 20 kV for 10, 20, and 30 min. The ion leakage rate in plants was significantly affected by the interaction between plasma and radiation time. In most treatments, the application of plasma significantly reduced the ion leakage rate. The application of plasma (10 and 20 kV) for 10 min significantly increased the relative water content of basil leaves. The maximum amount of total chlorophyll and carotenoid content occurred after applying plasma for 20 min with 15 kV. Furthermore, 10 and 15 kV treatments of atmospheric cold plasma for 10 min caused a significant increase in antioxidant activity. The highest total flavonoids were obtained after applying 15 kV treatments for 20 min and 20 kV for 30 min, respectively. Cold atmospheric plasma significantly increased the activity of peroxidase as an antioxidant enzyme. Moreover, the minimum and maximum values of microbial load based on logarithm ten were reached after applying 10 kV for 30 min and in the control group, respectively. In general, the results showed that dielectric barrier discharge cold atmospheric plasma could significantly improve basil plants’ physiological and biochemical traits.

scholarly journals USE OF ATMOSPHERIC PLASMA IN GERMINATION OF Hybanthus calceolaria (L.) Schulze-Menz SEEDS

2018 ◽  
Vol 31 (3) ◽  
pp. 632-639 ◽  
Author(s):  
DINNARA LAYZA SOUZA DA SILVA ◽  
MIKELLY DE LIMA FARIAS ◽  
JUSSIER DE OLIVEIRA VITORIANO ◽  
CLODOMIRO ALVES JÚNIOR ◽  
SALVADOR BARROS TORRES
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Plasma Jet ◽  
Cost Effective ◽  
Atmospheric Plasma ◽  
Helium Plasma ◽  
Application Time ◽  
Plasma Technology ◽  
Dielectric Barrier ◽  
Weight Variation

ABSTRACT Plasma technology is a fast, cost-effective, and pollution-free method that can be used in place of conventional methods to overcome seed dormancy. The goal of the present study was to determine the effect of different application times of atmospheric plasma on soaking and germination of Hybanthus calceolaria seeds in order to accelerate these processes. Helium plasma jet produced by dielectric barrier discharge was used to treat H. calceolaria seeds with applications of 1, 5, and 10 minutes. The treated seeds were characterized considering their weight variation during soaking, changes in electrical conductivity, and pH. It was found that germination depended on the plasma application time. The treatment of H. calceolaria seeds with atmospheric plasma for 1 minute provided 3.5 times greater germination in comparison to untreated seeds. Atmospheric plasma technology obtained by dielectric barrier discharge had potential of being used as a germination accelerant in H. calceolaria seeds. The treatment of H. calceolaria seeds using atmospheric plasma for 1 minute favored germination.

Study of PVA on Polyester Desizing with Atmospheric Pressure Dielectric Barrier Discharge Plasma

2013 ◽  
Vol 681 ◽  
pp. 11-15 ◽  
Author(s):  
Li Ming Li ◽  
Yong Qiang Li ◽  
Jin Qiang Liu
Keyword(s):  
Plasma Treatment ◽  
Dielectric Barrier Discharge ◽  
Atmospheric Pressure ◽  
Discharge Plasma ◽  
Barrier Discharge ◽  
Polyester Fabric ◽  
Atmospheric Plasma ◽  
Dielectric Barrier Discharge Plasma ◽  
Dielectric Barrier ◽  
Barrier Discharge Plasma

The effect of atmospheric pressure dielectric barrier discharge plasma treatment on desizing polyvinyl alcohol (PVA) on polyester fabric was discussed as compared desizing with alkali through a combination of desizing rate, field scanning electron microscopy and strength test. The dyeing properties of polyester fabrics treated with atmospheric plasma have also been studied. The results show that plasma treatment can improve desizing rate, surface color depth and dye-uptake for polyester fabric.

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