학술논문
Novel films of pectin extracted from ambarella fruit peel and jackfruit seed slimy sheath: Effect of ionic crosslinking on the properties of pectin film.
Document Type
Academic Journal
Author
Nguyen TTT; Nong Lam University Ho Chi Minh City, Ho Chi Minh City 700000, Viet Nam. Electronic address: nguyenthanhthuy@hcmuaf.edu.vn.; Ho HT; Nong Lam University Ho Chi Minh City, Ho Chi Minh City 700000, Viet Nam.; Hoang D; Faculty of Materials Science and Technology, University of Science, Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam.; Nguyen QAP; Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Department of Organic Chemical Technology, Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Viet Nam.; Tran TV; Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Viet Nam. Electronic address: tranvt@ntt.edu.vn.
Source
Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 8307156 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1344 (Electronic) Linking ISSN: 01448617 NLM ISO Abbreviation: Carbohydr Polym Subsets: MEDLINE
Subject
Language
English
Abstract
Here, we prepared ionically crosslinked films using pectin extracted from agro-wastes, specifically ambarella peels (AFP) and jackfruit seed slimy sheath (JFS). Physiochemical properties of pectins, including moisture content, molecular weight (Mw), degree of esterification (DE), and galacturonic acid (GA), were analyzed. Optimal extraction was determined, i.e., citric acid concentration 0.3 M, time 60 min, solid/liquid ratio 1:25, and temperature 90 °C for AFP or 85 °C for JFS. Pectin yields under these conditions were 29.67 % ± 0.35 % and 29.93 ± 0.49 %, respectively. AFP pectin revealed Mw, DE, and GA values of 533.20 kDa, 67.08 % ± 0.68 %, and 75.39 ± 0.82 %, while JFS pectin exhibited values of 859.94 kDa, 63.04 % ± 0.47 %, and 78.63 % ± 0.71 %, respectively. The pectin films crosslinked with Ca 2+ , Cu 2+ , Fe 3+ , or Zn 2+ exhibited enhanced tensile strength and Young's modulus, along with reduced elongation at break, moisture content, water solubility, water vapor permeability, and oxygen permeability. Structural analyses indicated metal ions were effectively crosslinked with carboxyl groups of pectin. Notably, the Cu 2+ -crosslinked film demonstrated superior water resistance, mechanical properties, and exhibited the highest antioxidant and antibacterial activities among all tested films. Therefore, the pectin films represent a promising avenue to produce eco-friendly food packaging materials with excellent properties.
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 Ltd. All rights reserved.)
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 Ltd. All rights reserved.)