authors |
Moreirinha, C; Vilela, C; Silva, NHCS; Pinto, RJB; Almeida, A; Rocha, MAM; Coelho, E; Coimbra, MA; Silvestre, AJD; Freire, CSR |
nationality |
International |
journal |
FOOD HYDROCOLLOIDS |
author keywords |
Arabinoxylans; Brewers' spent grain; Nanofibrillated cellulose; Feruloylated compounds; Nanocomposite films; Active food packaging |
keywords |
FOOD; ANTIBACTERIAL; EXTRACTION; BEHAVIOR; WATER |
abstract |
In this study, brewers spent grain (BSG) arabinoxylans-based nanocomposite films were prepared by solvent casting of arabinoxylans (AX) suspensions containing different amounts of nanofibrillated cellulose (NFC, 5, 10, 25, 50 and 75% mass fraction). The obtained nanocomposite films were homogeneous and presented thermal stability up to 230 degrees C and good mechanical properties (Young's modulus up to 7.5 GPa). Additionally, the films with 50% NFC were loaded with ferulic acid or feruloylated arabinoxylo-oligosaccharides enriched fraction from BSG (75 mg per g of film). This combination enhanced the UV-Vis barrier properties and imparted additional functionalities to the films, namely (i) antioxidant activity up to 90% (DPPH scavenging activity), (ii) antibacterial activity against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria, and (iii) antifungal activity towards the polymorphic fungus Candida albicans. Therefore, these fully biobased nanocomposite films show potential for application as active food packaging systems. |
publisher |
ELSEVIER SCI LTD |
issn |
0268-005X |
isbn |
1873-7137 |
year published |
2020 |
volume |
108 |
digital object identifier (doi) |
10.1016/j.foodhyd.2020.105836 |
web of science category |
Chemistry, Applied; Food Science & Technology |
subject category |
Chemistry; Food Science & Technology |
unique article identifier |
WOS:000565531600004
|