TY - JOUR
T1 - Carbon dots, cellulose nanofiber, and essential oil nanoemulsion from Torreya grandis aril added to fish scale gelatin film for tomato preservation
AU - Bao, Junjun
AU - Hu, Yuanyuan
AU - Farag, Mohamed A.
AU - Huan, Weiwei
AU - Wu, Jiasheng
AU - Yang, Dapeng
AU - Song, Lili
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/8/1
Y1 - 2023/8/1
N2 - In this study, carbon dots (CDs), cellulose nanofibers (CNF) and essential oil nanoemulsion (EON) were extracted from the aril waste of Torreya grandis following nuts production. These three nanomaterials were formulated for the preparation of a composite film to be employed for postharvest tomato storage. Visual, microscopical and physicochemical properties of the prepared nanocomposite films were analyzed at different levels of CDs and CNF for optimization purposes. The UV absorption and antioxidant capacity of gelatin film with 10 % CDs (G/10CD) were enhanced compared with gelatin (G) film, concurrent with a reduction in water barrier capacity, water contact angle (WCA) and tensile strength (TS). Compared with G/10CD film, the WCA of G film after incorporation of 10 % CDs and 3 wt% CNF (G/10CD/3CNF) was significantly increased by 14.5°at 55 s. In contrast, TS increased by 1.26 MPa, as well as the significant enhancement in water barrier capacity. The above composite film mixed with EON (G/10CD/3CNF/EON) exerted further antimicrobial effects against Escherichia coli. G/10CD/3CNF/EON coating effectively extended tomato shelf life compared with the control group. Therefore, this new eco-friendly film presents several advantages of biodegradability, sustainability as well as multifunctional properties posing it as potential packaging material for food applications.
AB - In this study, carbon dots (CDs), cellulose nanofibers (CNF) and essential oil nanoemulsion (EON) were extracted from the aril waste of Torreya grandis following nuts production. These three nanomaterials were formulated for the preparation of a composite film to be employed for postharvest tomato storage. Visual, microscopical and physicochemical properties of the prepared nanocomposite films were analyzed at different levels of CDs and CNF for optimization purposes. The UV absorption and antioxidant capacity of gelatin film with 10 % CDs (G/10CD) were enhanced compared with gelatin (G) film, concurrent with a reduction in water barrier capacity, water contact angle (WCA) and tensile strength (TS). Compared with G/10CD film, the WCA of G film after incorporation of 10 % CDs and 3 wt% CNF (G/10CD/3CNF) was significantly increased by 14.5°at 55 s. In contrast, TS increased by 1.26 MPa, as well as the significant enhancement in water barrier capacity. The above composite film mixed with EON (G/10CD/3CNF/EON) exerted further antimicrobial effects against Escherichia coli. G/10CD/3CNF/EON coating effectively extended tomato shelf life compared with the control group. Therefore, this new eco-friendly film presents several advantages of biodegradability, sustainability as well as multifunctional properties posing it as potential packaging material for food applications.
KW - Functional composite film
KW - Nanomaterials
KW - Torreya grandis aril waste
UR - https://www.scopus.com/pages/publications/85163871259
U2 - 10.1016/j.ijbiomac.2023.125482
DO - 10.1016/j.ijbiomac.2023.125482
M3 - 文章
C2 - 37348576
AN - SCOPUS:85163871259
SN - 0141-8130
VL - 245
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
M1 - 125482
ER -