Analysis of short-term treatment effects of dielectric barrier discharge plasma to improve germination characteristics of wheat seeds

Jangra, Sushma; Mishra, Ritesh; Mishra, Abhijit; Pandey, Shikha; Prakash, Ram

doi:10.1080/10420150.2024.2378437

Radiation Effects and Defects in Solids

2024

DOI: 10.1080/10420150.2024.2378437

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Analysis of short-term treatment effects of dielectric barrier discharge plasma to improve germination characteristics of wheat seeds

Sushma Jangra,

Ritesh Mishra,

Abhijit Mishra

et al.

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2024

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Analysis of discharge parameters of an argon cold atmospheric pressure plasma jet and its impact on surface characteristics of White Grapes

Mishra,

Siddiqui

et al. 2024

Phys. Scr.

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An argon cold atmospheric-pressure plasma (CAP) jet operated using bipolar pulsed power supply has been characterised electro-optically and the discharge parameters are optimized. An analysis has been done on the impact of the argon CAP jet treatment on the surface properties of white grapes for different treatment time period. The developed argon CAP jet is a plasma source based on dielectric barrier discharge (DBD) that has been tuned at various input parameters including applied voltage, frequency, average power consumption, and argon flow rate. Optical Emission Spectroscopy (OES) is used to identify the generated species along with plasma parameters. The collisional–radiative (CR) model is employed to extract the electron density (ne) and electron temperature (Te) from the spectra at the optimised applied voltage of 4 kV, frequency 20 kHz and argon flow rate of 4 slpm. The OES results coupled with the CR model (ne ~ 1014 cm-3 and Te ~ 1 eV) and the plasma gas temperature measurement through OH (A-X) transitions (Tg ~310.5 K) show the non-equilibrium nature of the argon CAP jet. A comparative analysis between untreated and treated white grapes reveals that the argon CAP jet treatment influences surface microstructure, increasing hydrophilicity (with a ~49.3% decrease in water contact angle) along with slight changes in surface temperature (~5°C increase), colour (ΔE* < 1.5), and physiochemical properties such as chemical composition (no change) and Total Soluble Solid (TSS) content (~8.3 %). It is inferred that this type of CAP jet treatment of white grapes only affects the physical characteristics of the grape surface and does not alter any chemical compositions.

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Analysis of discharge parameters of an argon cold atmospheric pressure plasma jet and its impact on surface characteristics of White Grapes

Mishra,

Siddiqui

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

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Analysis of short-term treatment effects of dielectric barrier discharge plasma to improve germination characteristics of wheat seeds

Cited by 1 publication

References 21 publications

Analysis of discharge parameters of an argon cold atmospheric pressure plasma jet and its impact on surface characteristics of White Grapes

Analysis of discharge parameters of an argon cold atmospheric pressure plasma jet and its impact on surface characteristics of White Grapes

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