Vegetos
(An International Journal of Plant Research & Biotechnology)
Comparative structural and techno-functional properties of barnyard, browntop and little millet starch by dielectric gas discharge and vacuum plasma
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Srivastava Yashi, Chandwani Nisha, Dave Purvi Kikani, Patil Chirayu
Research Articles | Published: 30 May, 2025
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Keywords: Barnyard, Browntop, Little Millet, Dielectric barrier discharge, Vacuum plasma
Abstract
The millet starch treated with dielectric barrier discharge atmospheric plasma and vacuum plasma spectra showed absorption bands at wave number 3436 cm−1 (–O–H–; Vibrational mode starch), 2931 cm−1 & 1650 cm−1 (–C–H–; glucose unit deformation) and 1167 cm−1, 1079 cm−1, 994 cm−1. The compound class alcohol with –O–H– bond stretching is observed in the millet flour at the absorbance range of 3436 cm−1. In comparison to DBD, the vacuum plasma treated millet samples showed more absorption values at wavenumber 3436 cm−1 (–O–H– bond stretching), 1167 cm−1, 1079 cm−1 and 994 cm−1 (–C–O–H–; Stretching vibration). It showed more hydrophilicity of vacuum-treated samples at 10–15 min than DBD. The contact angle formed by DBD showed lesser values than vacuum treated samples. The crystallinity of DBD-treated samples showed a decreasing trend with the course of exposure time.
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Author Information
Department of Applied Agriculture, Central University of Punjab, Bathinda, India