Reinforcing canola protein matrix with chemically tailored nanocrystalline cellulose improves the functionality of canola protein-based packaging materials.
Food Chem
; 383: 132618, 2022 Jul 30.
Article
em En
| MEDLINE
| ID: mdl-35255367
ABSTRACT
Canola protein derived from the canola industry byproduct is a potent biopolymer source to develop sustainable food packaging materials, but it has limitations due to its poor mechanical and barrier properties. Nanomaterials such as nanocrystalline cellulose (NCC) have shown promising potential in improving material properties. The current study aimed to enhance the functionality of canola protein-based films using TEMPO ((2,2,6,6-Tetramethylpiperidin-1-yl)oxyl) modified nanocrystalline cellulose (TM-NCC). TEMPO modification was performed using TEMPO/NaClO/NaBr based oxidation. Modified and unmodified nanocrystalline cellulose (U-NCC) were used at different weight ratios to prepare the films. TEMPO-mediated oxidation converted 19.61 ± 3.53 % of primary -OH groups into -COOH groups. The addition of U-NCC and TM-NCC significantly increased the tensile strength reporting the highest value of 8.36 ± 0.85 MPa for 5% TM-NCC, which was only 3.43 ± 0.66 MPa for control films. Interestingly, both U-NCC and TM-NCC enhanced the films' water barrier and thermal properties compared to control.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Brassica napus
/
Nanopartículas
Idioma:
En
Revista:
Food Chem
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Canadá