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Zein film: Effects of dielectric barrier discharge atmospheric cold plasma
Author(s) -
Pankaj S. K.,
BuenoFerrer Carmen,
Misra N. N.,
Bourke Paula,
Cullen P. J.
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40803
Subject(s) - dielectric barrier discharge , materials science , dielectric , plasma , fourier transform infrared spectroscopy , surface roughness , moisture , chemical engineering , analytical chemistry (journal) , composite material , chemistry , optoelectronics , environmental chemistry , physics , quantum mechanics , engineering
Dielectric barrier discharge atmospheric plasma is a novel nonthermal technology for the food and packaging industry. The effects of dielectric barrier discharge plasma on the surface, structural, thermal, and moisture sorption properties of edible zein films have been examined. Plasma treatment increased the surface roughness and equillibrium moisture content of the zein film in a direct relationship with the applied voltage level. No significant difference in the thermal stability of the zein film is also observed after plasma treatment. Dielectric barrier discharge plasma treatments of zein film lead to a change in the protein conformation which is confirmed by X‐ray diffraction and Fourier transform Infrared spectroscopy. The evaluation of films modifications by plasma discharge will contribute to enhance the in‐package decontamination studies of food products by plasma. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40803.