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Title The Influence of Intermolecular Interactions between Maleic Anhydride, Cellulose Nanocrystal, and Nisin-Z on the Structural, Thermal, and Antimicrobial Properties of Starch-PVA Plasticized Matrix
ID_Doc 29094
Authors de Oliveira, TV; de Freitas, PAV; Pola, CC; Terra, LR; da Silva, JOR; Badaró, AT; Nelson, S Jr; de Oliveira, MM; Silva, RRA; Soares, NDF
Title The Influence of Intermolecular Interactions between Maleic Anhydride, Cellulose Nanocrystal, and Nisin-Z on the Structural, Thermal, and Antimicrobial Properties of Starch-PVA Plasticized Matrix
Year 2021
Published Polysaccharides, 2.0, 3
DOI 10.3390/polysaccharides2030040
Abstract On behalf of a circular economy, regular plastics have been replaced by biodegradable packagings. Besides, active films have been applied to improve the shelf-life and quality of foods. In this work, blends were developed using starch as a low-cost natural polymer, mixed with poly(vinyl alcohol) due to its physical-chemical and biodegradable properties. Moreover, maleic anhydride (MaAh), cellulose-nanocrystal (CN), and nisin-z (N-Z) were added, respectively, as a compatibilizer, a mechanical-reinforce, and antimicrobial agents. The thermal stability of the films was analyzed, which blends' melting temperature occurred around 200-207 degrees C, and it was influenced by CN, N-Z, and MaAh amounts. N-Z and MaAh acted against S. aureus and P. aeruginosa by compound diffusion (inhibition-halo around 1.85 and 2.18 cm); while S. Choleraesuis and E. coli were inhibited by contact. Therefore, these blends presented the potential to be used as active biodegradable packaging in the food industry.
Author Keywords active packaging; biodegradable blends; intermolecular interactions; thermal stability
Index Keywords Index Keywords
Document Type Other
Open Access Open Access
Source Emerging Sources Citation Index (ESCI)
EID WOS:001109243400001
WoS Category Polymer Science
Research Area Polymer Science
PDF https://www.mdpi.com/2673-4176/2/3/40/pdf?version=1628666754
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