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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/24271
Title: Microwave-assisted micro-encapsulation of phase change material using zein for smart food packaging applications
Authors: Singh S.
Gaikwad, Kirtiraj K.
Lee M.
Lee Y.S.
Published in: Journal of Thermal Analysis and Calorimetry
Abstract: Abstract: Novel zein/tet (tetradecane) and zein/tet/APC (aqueous potassium chloride) micro-encapsulated functional materials were synthesized using a microwave-assisted encapsulation technique. This technique can produce microcapsules in a very short time. In this study, we optimized the methodology used to obtain micro-encapsulation structures based on zein (a maize protein). Zein was mixed with functional materials in ratios of 1:1 and 1:2 (w/v) using ethanol as a solvent. After sonication, each mixture was treated up to 550 s at a power of 450 W in a microwave oven. Subsequently, nitrogen was pumped into the solution for 1 h to remove any residual ethanol from the system and the samples were freeze-dried to yield the dry powder. The thermal performance was analyzed using differential scanning calorimetry and thermogravimetric analysis. The encapsulation morphology and chemical structure were analyzed using scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. Tetradecane was found to be properly encapsulated in the microstructure of zein under two different conditions with an average capsule diameter of 13950 nm. The melting point, crystallization point, and latent heat of encapsulated zein/tet are 4.95, 0.68 °C, and 107 J g−1, respectively. Thermal cycling tests indicated that zein/tet and zein/tet/APC have good thermal stability with negligible changes in their melting and crystallization temperatures. Heat management with tet has been modified using potassium chloride to support a suitable temperature range for food packaging. The encapsulated materials can be potentially used for temperature control during the transport of temperature-sensitive products. Graphical Abstract: [Figure not available: see fulltext.]. © 2017, Akadémiai Kiadó, Budapest, Hungary.
Citation: Journal of Thermal Analysis and Calorimetry, 131(3): 2187-2195
URI: https://doi.org/10.1007/s10973-017-6768-4
http://repository.iitr.ac.in/handle/123456789/24271
Issue Date: 2018
Publisher: Springer Netherlands
Keywords: Encapsulation
Microwave
Phase change material
Tetradecane
Zein
ISSN: 13886150
Author Scopus IDs: 57145063200
56954807800
57190163808
12242077800
Author Affiliations: Singh, S., Department of Packaging, Yonsei University, Wonju, Gangwon-do 220-710, South Korea
Gaikwad, K.K., Department of Packaging, Yonsei University, Wonju, Gangwon-do 220-710, South Korea
Lee, M., Department of Packaging, Yonsei University, Wonju, Gangwon-do 220-710, South Korea
Lee, Y.S., Department of Packaging, Yonsei University, Wonju, Gangwon-do 220-710, South Korea
Funding Details: This work was supported by the Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry, and Fisheries (IPET) through the High Value-Added Food Technology Development Program, funded by the Ministry of Agriculture, Food, and Rural Affairs (MAFRA) (316067-3). Ministry of Agriculture, Food and Rural Affairs, MAFRA: 316067-3; Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry and Fisheries, iPET; Korea Institute of Planning and Evaluation for Technology in Food, Agriculture and Forestry, IPET
Corresponding Author: Lee, Y.S.; Department of Packaging, South Korea; email: leeyouns@yonsei.ac.kr
Appears in Collections:Journal Publications [PT]

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