Effects of chestnut shell extract and citric acid on the properties of navel orange pomace/chitosan composite films.

Autor: Wang J; College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi 341000, China., Chen D; College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi 341000, China; National Navel Orange Engineering Research Center, Ganzhou, Jiangxi 341000, China., Ran L; College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi 341000, China., Xu D; School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China., Sun H; College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi 341000, China., Yang J; Jiangxi Bojun Ecological Agriculture Development Co., Ltd., Fuzhou, Jiangxi 344700, China., Zhu B; College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi 341000, China; National Navel Orange Engineering Research Center, Ganzhou, Jiangxi 341000, China. Electronic address: nczb615@163.com.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Dec; Vol. 283 (Pt 3), pp. 137575. Date of Electronic Publication: 2024 Nov 18.
DOI: 10.1016/j.ijbiomac.2024.137575
Abstrakt: The improper use of citrus peel and nondegradable plastic film can cause substantial issues, such as environmental pollution and resource waste. Herein, navel orange pomace powder (NOPP) and chitosan (CS) were used as the raw material and film-forming additive, respectively, to prepare biobased composite films. Chestnut shell extract (CHE) and citric acid (CA) were added to the prepared NOPP/CS biobased multifunctional films. Based on ensuring the tensile strength of the film above 10 MPa, the elongation at break of the film can be increased from 19.11 % to 34.93 %, the water contact angle can reach 60°, and the water vapor transmittance can be significantly reduced to approximately 1.1 × 10 -10 gs -1 m -1 Pa -1 . Additionally, the antibacterial ability and antioxidant capacity of the composite film were improved. We observed that the multifunctional film could significantly inhibit the browning of fresh-cut apples, where the browning index was maintained between 60 and 65, which was 25 % lower than that of the control. The newly developed film therefore possesses the potential to replace the traditional plastic cling film. This research contributes to the literature regarding the source of raw materials for biobased materials and highlights the value of navel orange processing by-products.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: