Data/hora: 07/06/2024 17:24:57

Biblioteca(s): | Embrapa Agroindústria de Alimentos.
Data corrente: | 19/05/2020
Data da última atualização: | 17/12/2020
Autoria: | COELHO, C. C. de S.; SILVA, R. B. S.; CARVALHO, C. W. P. de; ROSSI, A. L.; TEIXEIRA, J. A.; FREITAS-SILVA, O.; CABRAL, L. M. C.
Afiliação: | Caroline Corrêa de Souza Coelho, UFRJ; Raysa Brandão Soares Silva, PUC - RIO; CARLOS WANDERLEI PILER DE CARVALHO, CTAA; André Linhares Rossi, CBPF; José A. Teixeira, entre of Biological Engineering, Universidade do Minho; OTNIEL FREITAS SILVA, CTAA; LOURDES MARIA CORREA CABRAL, CTAA.
Título: | Cellulose nanocrystals from grape pomace and their use for the development of starch-based nanocomposite films.
Ano de publicação: | 2020
Fonte/Imprenta: | International Journal of Biological Macromolecules, v. 159, p. 1048-1061, 2020.
DOI: | https://doi.org/10.1016/j.ijbiomac.2020.05.046
Idioma: | Inglês
Conteúdo: | Nanocompositefilms prepared from starch (ST) in the presence of cellulose nanocrystals (CNCs) was performedusing grape pomace asraw material.CNCswere obtainedbyacidhydrolysis and added tofilmogenic solutions (1,2, 5, 10 and 15 g/100 g of ST). Cellulose, CNCs and Nanocomposites were characterized. Amorphous non-cellulosic materials were removed from the grape pomace presented values for CrI 64% and 71% and yield 12and 70% in Cellulose and CNCs, respectively. Nanocomposites showed smaller permeability and the addition of5 to 15% CNCs formed more opaquefilms and had improved tensile strength and Young’s modulus. The additionof CNCs from 5 to 15% proved to be effective in improving mechanicalproperties and decreasing water vaporper-meability, important characteristics in food packaging materials. This study provided an effective method to ob-tain CNCs from the agroindustrial waste and open the way to produce high-value starch based nanocomposites.
Palavras-Chave: | Barrier properties.
Thesaurus Nal: | Biopolymers; Food technology; Mechanical properties; Nanocomposites; Packaging.
Categoria do assunto: | --
Registro original: | Embrapa Agroindústria de Alimentos (CTAA)
Exemplares: | CTAA - (14897-1) - UPC - AP - DD -  -  -  - DIS