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Modelling perforated mediated modified atmospheric packaging of capsicum
Author(s) -
Pandey Sushil Kumar,
Goswami Tridib Kumar
Publication year - 2012
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.2011.02877.x
Subject(s) - modified atmosphere , thermodynamics , mass transfer , perforation , carbon dioxide , materials science , permeability (electromagnetism) , mechanics , chemistry , analytical chemistry (journal) , composite material , chromatography , physics , biochemistry , food science , organic chemistry , membrane , shelf life , punching
Summary Perforation of a film would otherwise have a low permeability is an alternative to obtain optimum oxygen and carbon dioxide concentration in modified atmosphere packages. In present study, gas exchange was studied through a macroperforated packet containing capsicum having different number of holes, 1–4, of diameter 0.3 mm at temperatures of 5 and 25 °C. A model combining the Michaelis–Menten kinetics to describe the respiration rate of the product with mass transfer equation to describe the gas transfer across the package provided a good fit to the experimental data. Its applicability was further validated in a dynamic test, subjecting a package to a variable temperature programme simulating conditions in distribution chains. Model showed good agreement between predicted and observed values for both storage conditions with constant temperatures and variable temperature conditions of distribution chain, as mean relative deviation modulus ( E ) value was <10%.