Influence of natural fillers on the properties of starch-based biocomposite films |
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| Affiliation: | 1. Department of Food Science and Technology, University of Tabriz, Tabriz 51666-16471, Iran;2. Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran;3. Department of Food Engineering, Faculty of Engineering, Near East University, P. O. Box 99138, Cyprus, Mersin 10, Nicosia, Turkey;1. Istituto per i Polimeri, Compositi e Biomateriali (IPCB), Consiglio Nazionale delle Ricerche (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, NA, Italy;2. Istituto per le Macchine Agricole e Movimento Terra (IMAMOTER), Consiglio Nazionale delle Ricerche (CNR), Strada delle Cacce 73, 10135 Torino, Italy;1. Bioprocess Engineering Laboratory (BPEL), Department of Food Science and Engineering, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj, Iran;2. Department of Food Science and Technology, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran;3. Department of Engineering, University of Rome “Niccolo Cusano”, INSTM RU, Via Don Carlo Gnocchi, 3, 00166 Rome, Italy;1. Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, China;2. Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China;3. School of Oceanographic Science and Bioengineering, Qingdao University of Science and Technology, Qingdao, 266042, China |
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| Abstract: | Starch microparticles (SMs) were prepared by delivering ethanol into starch solution. Chemically modified starch microparticles (CMSs) by reaction with malic acid were obtained and incorporated within glycerol plasticized-corn starch (GCS) matrix, composites being further prepared by the casting process. Three natural fillers (NFs) – keratin, lignin, and spruce cellulose – were incorporated within the CMS–GCS matrix. The surface properties and water sorption, as well as mechanical and thermal properties of chemically modified starch/plasticized starch/natural filler (CMS/S/NF) films were investigated. The water resistance and thermal stability were improved through addition of NF. Higher tensile strength and lower elongation capacity were also observed. |
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