Journal
CARBOHYDRATE POLYMERS
Volume 211, Issue -, Pages 209-216Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2019.02.013
Keywords
Biopolymers; Polysaccharides; Food packaging; Nanoparticles; Reinforcement
Categories
Funding
- Brazilian Agricultural Research Corporation (Embrapa) [02.14.04.002.00.00]
- National Council for Scientific and Technological Development, CNPq [402561/2007-4]
- Coordination for the Improvement of Higher Education Personnel (CAPES) [1376677, 2017SLR-17925]
- Fundacao Cearense de Apoio ao Desenvolvimento Cientifico e Tecnologico (FUNCAP) [BMD-0008-00640.01.11/15]
- CNPq [305504/2016-9, 302381/2016-3]
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Mango seeds have been used to obtain components for nanocomposite films, namely, starch and starch nanocrystals (SNC) from seed kernels, and cellulose nanocrystals (CNC) from seed shells. Lignin was also recovered from shells. Starch-based films were prepared with different contents and combinations of SNC and CNC. SNC exhibited round-like rather than platelet-like morphology, and their effect on water vapor barrier was not as high as that of the needle-like CNC. Also, CNC were more effective than SNC to increase elastic modulus. On the other hand, CNC impaired more the elongation. The optimized conditions (1.5 wt% CNC and 8.5 wt% SNC on a starch basis) resulted in a film with enhanced strength, modulus, and barrier to water vapor when compared to the unfilled film, although the elongation has been impaired.
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