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Evaluation of physical and microstructural properties of hydroxypropylmethyl nanocomposite edible film Cellulose contains nanoclay and essential oil
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Mohamad Faghei Shahrbabaki   , Alireza Shahab Lavasani * , Nazanin Zand , Leila Nateghi , Mohammad Reza Eshaghi |
| Associate Professor, Department of Food Science and Technology, Faculty of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran |
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Abstract: |
The use of edible coatings as a food storage method and as a technique to maintain and improve quality during storage is of great importance. The aim of this study is to optimize the formulation of hydroxypropyl methyl cellulose nanocomposite film containing nanoclay and dill essential oil. In this research, An optimized sample of hydroxypropyl methyl cellulose nanocomposite film containing nanoclay and dill essential oil containing 26.4% by weight of nanoclay and 1.70% dill essential oil was reproduced and its physical and microstructural parameters included Elongation to breaking point, solubility in water and permeability to water vapor were evaluated by infrared spectroscopy and thermal changes of the optimal sample were evaluated against the control sample and the sample without essential oil. The results showed that the optimal sample of HPMC film had the lowest force required to tear, the lowest water vapor penetration and the lowest solubility in water, compared to other samples. The results of FTIR analysis also showed that all the peaks in the control film were more intense than the spectra of the films containing nanoclay and essential oil, and with the increase in the amount of nanoclay in the film samples, the glass transition temperature increased. Based on the results of the present study, it can be said that using the optimal sample of hydroxypropyl methyl cellulose film containing nanoclay and dill essential oil can be used as an edible coating.
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| Keywords: dill essential oil, hydroxypropyl methyl cellulose film, response surface design, nanosoil |
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Type of Study: Research |
Subject:
General
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