期刊
CARBOHYDRATE POLYMERS
卷 144, 期 -, 页码 41-49出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.02.024
关键词
Blue agave; Yellow squat lobster; Cellulose; Chitin; Nanocrystals; Antifungal properties
资金
- Department of Education, Universities and Investigation of the Basque Government [IT672-13]
- Mexican Council of Science and Technology (CONACyT) [216178]
Cellulose nanofibers and chitin nanocrystals, two main components of agricultural and aquacultural by-products, were obtained from blue agave and yellow squat lobster industrial residues. Cellulose nanofibers were obtained using high pressure homogenization, while chitin nanocrystals were obtained by hydrolysis in acid medium. Cellulose nanofibers and chitin nanocrystals were characterized by X-ray diffraction, Atomic Force Microscopy and Infrared spectroscopy. Self-bonded composite films with different composition were fabricated by hot pressing and their properties were evaluated. Antifungal activity of chitin nanocrystals was studied using a Cellometer (R) cell count device, mechanical properties at tension were measured with a universal testing machine, water vapor permeability was evaluated with a thermohygrometer and surface tension with sessile drop contact angle method. The addition of chitin nanocrystals reduced slightly the mechanical properties of the composite. Presence of chitin nanocrystals influenced the growth of Aspergillus sp fungus in the surface of the composites as expected. (C) 2016 Elsevier Ltd. All rights reserved.
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