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Li M, Liu Y, Wang Y, Liu T, Li Z, Jiang L. Development, characterization and application of chitosan/locust bean gum based multifunctional green food packaging containing Koelreuteria paniculata Laxm. bracts extract and Ti-carbon dots. Int J Biol Macromol 2024; 278:134610. [PMID: 39128737 DOI: 10.1016/j.ijbiomac.2024.134610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 08/05/2024] [Accepted: 08/07/2024] [Indexed: 08/13/2024]
Abstract
Multifunctional green food packaging films were developed by incorporating Koelreuteria paniculata Laxm. bract extract (KBE) and bio-waste-derived Ti-doped carbon dots (Ti-CDs) into a chitosan/locust bean gum (CG) matrix for the first time. Results from FTIR and XRD demonstrated the precise bonding of Ti-CDs to CG through a Schiff base reaction and hydrogen bonding, while KBE was effectively immobilized within the film matrix via hydrogen bonding. SEM and TGA analysis demonstrated enhanced thermal stability and density of the films. Addition of Ti-CDs synergistically improved the barrier properties and mechanical strength of the films through enhanced hydrogen bonding and Schiff base reactions. Specifically, the incorporation of 3 wt% Ti-CDs increased the oxygen barrier properties, tensile strength, water resistance, and vapor permeability of CG films by approximately 1.18, 0.75, and 1.51 times, respectively. Furthermore, the antimicrobial and antioxidant capabilities were significantly improved with the addition of KBE to films. The CG-3%CDs-KBE film coating effectively prolonged the shelf life of strawberries. Additionally, these films exhibited superior pH responsiveness and ammonia-sensitivity, enabling visual monitoring of shrimp freshness during storage. Importantly, CG-3%CDs-KBE films exhibited biodegradability in soil and displayed good biosafety. Overall, these findings underscore the promising potential of CG-3%CDs-KBE films as multifunctional green food packaging materials.
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Affiliation(s)
- Mei Li
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China
| | - Yingzhu Liu
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China.
| | - Yanyan Wang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Research Center for High Value Utilization of Characteristic Agricultural Products, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Tiantian Liu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Research Center for High Value Utilization of Characteristic Agricultural Products, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Ziao Li
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Research Center for High Value Utilization of Characteristic Agricultural Products, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Longwei Jiang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Research Center for High Value Utilization of Characteristic Agricultural Products, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China.
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2
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Tian Y, Zhou L, Liu J, Yu K, Yu W, Jiang H, Chen X, Peng S, Zhong J, Liu W. Metal-organic frameworks-based moisture responsive essential oil hydrogel beads for fresh-cut pineapple preservation. Food Chem 2024; 451:139440. [PMID: 38692245 DOI: 10.1016/j.foodchem.2024.139440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/07/2024] [Accepted: 04/20/2024] [Indexed: 05/03/2024]
Abstract
The preservation of fresh-cut fruits and vegetables has attracted attention to the shelf-life reduction caused by high humidity. Herein, alginate/copper ions cross-linking, in-situ growth and self-assembly techniques of metal-organic frameworks (MOFs) were utilized to prepare a moisture responsive hydrogel bead (HKUST-1@ALG). As the multistage porous structure formation, tea tree essential oil (TTO) load capacity in hydrogel bead (TTO-HKUST-1@ALG) was increased from 6.1% to 21.6%. TTO-HKUST-1@ALG had excellent moisture response performance, and the release rates of TTO increased from 33.89% to 70.98% with moisture increasing from 45% to 95%. Besides, TTO-HKUST-1@ALG exhibited excellent antimicrobial, antioxidant capacity, and biocompatibility. During storage, TTO-HKUST-1@ALG effectively improved the cell membrane integrity by maintaining the balance of reactive oxygen species metabolism. The degradation of cell wall structure and tissue softening were delayed by inhibiting the cell wall-degrading enzymes activity. Briefly, TTO-HKUST-1@ALG improved the storage quality and extended shelf-life of fresh-cut pineapple, which was a promising preservative.
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Affiliation(s)
- Yuqing Tian
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Lei Zhou
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
| | - Junping Liu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Kaibo Yu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Wenzhi Yu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Hongwei Jiang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Xiaowei Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Shengfeng Peng
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Junzhen Zhong
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Wei Liu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China; National R&D Center for Freshwater Fish Processing, Jiangxi Normal University, Nanchang 330022, China.
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Ma J, Liu Y, Xu J, Chen Y, Liu L, Zhang H. An insect lac blanket-mimetic and degradable shellac hydrogel/chitosan packaging film with controllable gas permeation for fresh-cut vegetables preservation. Int J Biol Macromol 2024; 275:133131. [PMID: 38945721 DOI: 10.1016/j.ijbiomac.2024.133131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 06/03/2024] [Accepted: 06/11/2024] [Indexed: 07/02/2024]
Abstract
Fresh-cut products are extremely perishable due to the processing operations, and the atmosphere environment, especially CO2, O2 and H2O, could profoundly affect their shelf life. Herein, an insect "lac blanket"-mimetic and facile strategy was proposed for fresh-cut vegetables preservation, employing porous shellac hydrogel microparticles as gas "switches" in chitosan film to regulate CO2, O2 and H2O vapor permeability. Thus, the shellac hydrogel/chitosan hybrid film presented the controllable and wide range of gas permeability, compared with the chitosan film. The shellac-COOH nanoscale vesicles aggregated to form shellac hydrogel network via hydrophobic binding. The shellac hydrogel microparticles played a certain lubricating effect on the hybrid film casting solution. The hydrogen bond network between shellac hydrogel and chitosan contributed to the excellent mechanical properties of the hybrid film. The hybrid film also exhibited remarkable water-resistant, antifogging properties, optical transparency and degradability. The hybrid packaging films prepared through this strategy could adjust the internal gas (CO2, O2, H2O and ethylene) contents within the packages, and further exhibited admirable preservation performance on three fresh-cut vegetables with different respiratory metabolisms. This gas permeation-controlled strategy has great potential in fresh food preservation and various other applications that need a modified atmosphere.
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Affiliation(s)
- Jinju Ma
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650233, China; Nanjing Forestry University, Nanjing 210037, China
| | - Yupeng Liu
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Juan Xu
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650233, China; Key Laboratory of Breeding and Utilization of Resource Insects, National Forestry and Grassland Administration, Kunming 650233, China
| | - Youqing Chen
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650233, China.
| | - Lanxiang Liu
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650233, China; Research Center of Engineering and Technology of Characteristic Forest Resources, National Forestry and Grassland Administration, Kunming 650233, China
| | - Hong Zhang
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650233, China.
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Song Y, Sun S, Hao Q, Gao S, Wang W, Hou H. Effect of polydimethylsiloxane on the structure and barrier properties of starch/PBAT composite films. Carbohydr Polym 2024; 336:122119. [PMID: 38670751 DOI: 10.1016/j.carbpol.2024.122119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 03/28/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024]
Abstract
This study aimed to investigate the effects of polydimethylsiloxane (PDMS) with a low surface energy on the structure and physicochemical properties of starch/poly (butylene adipate-co-terephthalate) (PBAT) blown films. The film's appearance was not significantly changed after the addition of PDMS. Compared with the films without PDMS, the films with PDMS displayed a smoother surface. A 2% w/w PDMS addition resulted in the maximum mechanical properties (8.10 MPa of strength, 211.00% of modulus) and surface hydrophobicity (87°) of the films. By contrast, the film with 3% w/w PDMS showed the lowest light transmittance, water vapor (2.73 × 10-11 g·cm·cm2·s-1·Pa-1) and oxygen permeability (9.73 × 10-13·cm3·cm·cm-2·s-1·Pa-1), owing to the improved tightness of the matrix, which increased the zigzag path for molecules to pass through. Films with higher PDMS contents effectively extended the shelf life of packaged bananas and shiitake mushrooms, benefiting from the outstanding and appropriate barrier properties, according to principal component analysis results. Findings supported that high-content starch/PBAT films containing PDMS had potential in the preservation of fresh agricultural products.
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Affiliation(s)
- Yizhao Song
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Shenglin Sun
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Qian Hao
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Shan Gao
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong Province 271018, China
| | - Wentao Wang
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong Province 271018, China.
| | - Hanxue Hou
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong Province 271018, China.
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Guo JS, Lu G, Song FL, Meng MY, Song YH, Ma HN, Xie XR, Zhu YJ, He S, Li XB. Odor Fingerprinting of Chitosan and Source Identification of Commercial Chitosan: HS-GC-IMS, Multivariate Statistical Analysis, and Tracing Path Study. Polymers (Basel) 2024; 16:1858. [PMID: 39000713 PMCID: PMC11243783 DOI: 10.3390/polym16131858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 07/17/2024] Open
Abstract
Chitosan samples were prepared from the shells of marine animals (crab and shrimp) and the cell walls of fungi (agaricus bisporus and aspergillus niger). Fourier-transform infrared spectroscopy (FT-IR) was used to detect their molecular structures, while headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) was employed to analyze their odor composition. A total of 220 volatile organic compounds (VOCs), including esters, ketones, aldehydes, etc., were identified as the odor fingerprinting components of chitosan for the first time. A principal component analysis (PCA) revealed that chitosan could be effectively identified and classified based on its characteristic VOCs. The sum of the first three principal components explained 87% of the total variance in original information. An orthogonal partial least squares discrimination analysis (OPLS-DA) model was established for tracing and source identification purposes, demonstrating excellent performance with fitting indices R2X = 0.866, R2Y = 0.996, Q2 = 0.989 for independent variable fitting and model prediction accuracy, respectively. By utilizing OPLS-DA modeling along with a heatmap-based tracing path study, it was found that 29 VOCs significantly contributed to marine chitosan at a significance level of VIP > 1.00 (p < 0.05), whereas another set of 20 VOCs specifically associated with fungi chitosan exhibited notable contributions to its odor profile. These findings present a novel method for identifying commercial chitosan sources, which can be applied to ensure biological safety in practical applications.
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Affiliation(s)
- Jin-Shuang Guo
- Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China; (M.-Y.M.); (Y.-H.S.); (H.-N.M.); (X.-R.X.); (Y.-J.Z.); (S.H.); (X.-B.L.)
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Gang Lu
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Fu-Lai Song
- Qingdao Health Ocean Biopharmaceutical Co., Ltd., Qingdao 266001, China;
| | - Ming-Yu Meng
- Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China; (M.-Y.M.); (Y.-H.S.); (H.-N.M.); (X.-R.X.); (Y.-J.Z.); (S.H.); (X.-B.L.)
| | - Yu-Hao Song
- Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China; (M.-Y.M.); (Y.-H.S.); (H.-N.M.); (X.-R.X.); (Y.-J.Z.); (S.H.); (X.-B.L.)
| | - Hao-Nan Ma
- Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China; (M.-Y.M.); (Y.-H.S.); (H.-N.M.); (X.-R.X.); (Y.-J.Z.); (S.H.); (X.-B.L.)
| | - Xin-Rui Xie
- Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China; (M.-Y.M.); (Y.-H.S.); (H.-N.M.); (X.-R.X.); (Y.-J.Z.); (S.H.); (X.-B.L.)
| | - Yi-Jia Zhu
- Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China; (M.-Y.M.); (Y.-H.S.); (H.-N.M.); (X.-R.X.); (Y.-J.Z.); (S.H.); (X.-B.L.)
| | - Song He
- Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China; (M.-Y.M.); (Y.-H.S.); (H.-N.M.); (X.-R.X.); (Y.-J.Z.); (S.H.); (X.-B.L.)
| | - Xue-Bo Li
- Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China; (M.-Y.M.); (Y.-H.S.); (H.-N.M.); (X.-R.X.); (Y.-J.Z.); (S.H.); (X.-B.L.)
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Zhang M, Liu S, Gao X, Jiang X, Zhang E, Fan H, Zhu S. Highly flexible carbon nitride-polyethylene glycol-cellulose acetate film with photocatalytic antibacterial activity for fruit preservation. Int J Biol Macromol 2024; 266:131161. [PMID: 38547947 DOI: 10.1016/j.ijbiomac.2024.131161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
Cellulose acetate film, as a biodegradable and biomass-derived material, has great potential applications in food packaging. However, the poor mechanical and antibacterial properties limit its applications. Herein, a highly flexible carbon nitride-polyethylene glycol-cellulose acetate (CN-PEG-CA) film was successfully prepared by combining graphitic carbon nitride (g-C3N4) photocatalyst with cellulose acetate (CA). The g-C3N4 enables the film with antibacterial activity, as a green photocatalyst. PEG softens the rigid polymer CA and crosslinks CA, PEG, and g-C3N4 together by hydrogen bonding, as a flexible crosslinker. X-ray diffractometer (XRD), scanning electron microscope (SEM), and Fourier transform infrared spectrum (FT-IR) characterizations confirmed the successful preparation of the CN-PEG-CA film. The mechanical property tests demonstrated that adding PEG increased the elongation at break of the film by about 4 times. The composite film had high antibacterial activity, and the bactericidal rates on Escherichia coli and Staphylococcus aureus were 99.98 % and 99.89 %, respectively. It effectively extended the shelf life of strawberries to 96 h and effectively maintained the quality of strawberries during storage. After 96 h, the weight loss rate of strawberries packaged with 15 % CN-PEG-CA film was 21.83 %, vitamin C content was 45.47 %, titratable acidity content was 0.89 %, and color, hardness and total soluble solids were well maintained. And biocompatibility test results showed that the film was safe and nontoxic. From the ecological and economic point of view, the highly flexible and biodegradable films with efficient photocatalytic antibacterial activity synthesized in this paper have great potential in the field of food packaging.
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Affiliation(s)
- Mengting Zhang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Shujun Liu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Xianqiang Gao
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Xiaokang Jiang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Enze Zhang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Hai Fan
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| | - Shuhua Zhu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China.
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Cabrera-Barjas G, Albornoz K, Belchi MDL, Giordano A, Bravo-Arrepol G, Moya-Elizondo E, Martin JS, Valdes O, Nesic A. Influence of chitin nanofibers and gallic acid on physical-chemical and biological performances of chitosan-based films. Int J Biol Macromol 2024; 263:130159. [PMID: 38368972 DOI: 10.1016/j.ijbiomac.2024.130159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 02/05/2024] [Accepted: 02/11/2024] [Indexed: 02/20/2024]
Abstract
In this work, chitosan films loaded with gallic acid and different content of chitin nanofibers were prepared and subjected to different characterization techniques. The results showed that the inclusion of gallic acid to chitosan films caused moderate decrease in water vapor permeability (by 29 %) and increased tensile strength of films (by 169 %) in comparison to the neat chitosan films. Furthermore, it was found that the addition of chitin nanofibers up to 30 % into chitosan/gallic acid films additionally improved tensile strength (by 474 %) and reduced plasticity of films (by 171 %), when compared to the chitosan/gallic acid films. Increased concentration of chitin nanofibers in films reduced the overall water vapor permeability of films by 51 %. In addition, gallic acid and chitin nanofibers had synergic effect on high chitosan film's antioxidant and antifungal activity toward Botrytis cinerea (both above 95 %). Finally, chitosan/gallic acid/chitin nanofibers films reduced decay incidence of strawberries, increased total soluble solid content, and promoted high production of some polyphenols during cold storage, in comparison to the control chitosan films and uncoated strawberry samples. Hence, these results suggest that chitosan/gallic acid/chitin nanofibers can present eco-sustainable approach for preservation of strawberries, giving them additional nutritional value.
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Affiliation(s)
- Gustavo Cabrera-Barjas
- Facultad de Ciencias del Cuidado de la Salud, Universidad San Sebastian Campus Las Tres Pascualas, Lientur 1457, 4080871 Concepción, Chile.
| | - Karin Albornoz
- Departamento de Produccion Vegetal, Facultad de Agronomia, Universidad de Concepcion, Concepcion, Chile.
| | - Maria Dolores Lopez Belchi
- Departamento de Produccion Vegetal, Facultad de Agronomia, Universidad de Concepcion, Concepcion, Chile.
| | - Ady Giordano
- Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Chile.
| | - Gaston Bravo-Arrepol
- Unidad de Desarrollo Tecnológico, Parque Industrial Coronel, Universidad de Concepción, Concepción 3349001, Chile; Centro Nacional de Excelencia para la Industria de la Madera (CENAMAD), Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, 7810000, Chile.
| | - Ernesto Moya-Elizondo
- Departamento de Produccion Vegetal, Facultad de Agronomia, Universidad de Concepcion, Concepcion, Chile.
| | - Juan San Martin
- Departamento de Produccion Vegetal, Facultad de Agronomia, Universidad de Concepcion, Concepcion, Chile.
| | - Oscar Valdes
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca, Chile.
| | - Aleksandra Nesic
- University of Belgrade, Department of Chemical Dynamics and Permanent Education, Vinca Institute of Nuclear Sciences - National Institute of the Republic of Serbia, Serbia.
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Lv Y, Li P, Cen L, Wen F, Su R, Cai J, Chen J, Su W. Gelatin/carboxymethylcellulose composite film combined with photodynamic antibacterial: New prospect for fruit preservation. Int J Biol Macromol 2024; 257:128643. [PMID: 38061514 DOI: 10.1016/j.ijbiomac.2023.128643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/28/2023] [Accepted: 12/04/2023] [Indexed: 01/26/2024]
Abstract
Plastic packaging causes environmental pollution, and the development of simple and effective biodegradable active packaging remains a challenge. In this study, gelatin (G) and sodium carboxymethylcellulose (CMC) were used as film materials, with the addition of curcumin (Cur), a photosensitive substance, to investigate the changes in the physical and chemical properties of the film and its application in fruit preservation. The results demonstrated that Cur was compatible with the film. With the addition of Cur, the thickness of the film increased up to 1.3 times, while the moisture content was reduced to 12.10 %. The tensile strength (TS) and elongation at break (EAB) of the film can reach 8.84 MPa and 19.33 %, respectively. The photodynamic antibacterial experiment revealed that the film containing 0.5 % Cur exhibited the highest antibacterial rate, reaching 99.99 % against Staphylococcus aureus (S. aureus) and 95 % against Escherichia coli (E. coli). During storage, the grapes remained unspoiled for up to 9 days after being phototreated with the film and the microbial content of the skin was much lower than that of the control group. In addition, Cur provided antioxidant activity for the film, with a scavenging activity of 39.54 % against the 2,2-diphenyl-1-picrind radical (DPPH). Bananas exposed to the film-forming solution for a short period of time remained fresh for up to 6 days. During preservation, the weight of the treated bananas decreased more slowly than that of the control group. In addition, the activity of SOD on the 7th day was approximately 20 U/g higher than that of the control group, which helped to reduce oxidative stress during banana preservation. In summary, G-CMC/Cur film is an optional fruit-cling film that can be used in food packaging.
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Affiliation(s)
- Yingbin Lv
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Peiyuan Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.
| | - Lei Cen
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Fangzhou Wen
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Rixiang Su
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Jinyun Cai
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Jingdi Chen
- Marine College, Shandong University, Weihai 264209, China
| | - Wei Su
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China.
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9
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Huang L, Liao R, Bu N, Zhang D, Pang J, Mu R. Electrospun Konjac Glucomannan/Polyvinyl Alcohol Long Polymeric Filaments Incorporated with Tea Polyphenols for Food Preservations. Foods 2024; 13:284. [PMID: 38254585 PMCID: PMC10814646 DOI: 10.3390/foods13020284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/14/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
In this study, nanofiber films were prepared by electrospinning technology with polyvinyl alcohol (PVA) and konjac glucomannan (KGM) as raw materials. Tea polyphenols (TPs) were incorporated in the above matrix, which increased physicochemical (thermal and mechanical characteristics) and antibacterial properties of the nanofiber films. The release behavior of phenolic compounds from PVA/KGM-TPs nanofiber films was determined in different food simulants; antioxidant and antibacterial activity of the films were also evaluated. The results showed that the addition of KGM increased the physical and chemical properties of the films. The tensile strength (TS) and elongation at break (EB) increased from 5.40 ± 0.33 to 10.62 ± 0.34 and from 7.24 ± 0.32 to 18.10 ± 0.91, respectively. PVA/KGM-TPs nanofiber films performed controlled release of TPs, with final release of 49.17% in 3% acetic acid, 43.6% in 10% ethanol, and 59.42% in 95% ethanol. The nanofiber films showed good antioxidation properties, with the free radical scavenging rate increasing from 1.33% to 25.61%, and good antibacterial properties with inhibition zones against E. coli and S. aureus of 24.33 ± 0.47 mm and 34.33 ± 0.94 mm, respectively. In addition, the as-prepared films showed significant preservation performance for raw bananas at 25 °C.
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Affiliation(s)
| | | | | | | | | | - Ruojun Mu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China (R.L.); (D.Z.); (J.P.)
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10
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Wang F, Xie C, Tang H, Li H, Hou J, Zhang R, Liu Y, Jiang L. Intelligent packaging based on chitosan/fucoidan incorporated with coleus grass (Plectranthus scutellarioides) leaves anthocyanins and its application in monitoring the spoilage of salmon (Salmo salar L.). Int J Biol Macromol 2023; 252:126423. [PMID: 37604418 DOI: 10.1016/j.ijbiomac.2023.126423] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/07/2023] [Accepted: 08/17/2023] [Indexed: 08/23/2023]
Abstract
The innovation of this study was to develop a novel biodegradable intelligent packaging based on chitosan/fucoidan combined with different amounts (1, 3 and 5 wt% on chitosan basis) of coleus grass (Plectranthus scutellarioides) leaves anthocyanins (CGL) to monitor the spoilage of salmon (Salmo salar L.). The addition of fucoidan improved the barrier and mechanical properties of the chitosan films (CS) due to hydrogen bonds and intermolecular electrostatic interactions. Moreover, the addition of CGL not only improved the physical properties but also improved the biological activity of chitosan/fucoidan film (CF). The DPPH and ABTS radical scavenging activity of CF contained 5 wt% CGL was 1.83 and 1.75 times than CF, respectively. The inhibition zone size of CF films containing 5 wt% CGL (CF-5%CGL) was approximately 2.04 (Escherichia coli) and 2.16 (Staphylococcus aureus) times higher than that of CF. Moreover, CF-CGL displayed obvious color changes in different pH environments and is highly sensitive to ammonia gas. The CF-CGL has visible color changes during the monitoring of salmon spoilage and extended the shelf life of salmon. According to our findings, CF-CGL film might be employed as a possible intelligent packaging material for monitoring and preserving salmon in the future.
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Affiliation(s)
- Fenghui Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Cancan Xie
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Hongjie Tang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Hanyu Li
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jingjie Hou
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Rui Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Yingzhu Liu
- School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China; College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China.
| | - Longwei Jiang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Modern Agricultural Engineering Key Laboratory at Universities of Education Department of Xinjiang Uygur Autonomous Region, China.
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Cejudo C, Ferreiro M, Romera I, Casas L, Mantell C. Functional, Physical, and Volatile Characterization of Chitosan/Starch Food Films Functionalized with Mango Leaf Extract. Foods 2023; 12:2977. [PMID: 37569246 PMCID: PMC10418412 DOI: 10.3390/foods12152977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/03/2023] [Accepted: 08/06/2023] [Indexed: 08/13/2023] Open
Abstract
Active packaging is one of the currently thriving methods to preserve highly perishable foods. Nonetheless, the integration of active substances into the formulation of the packaging may alter their properties-particularly mass transfer properties-and therefore, the active compounds acting. Different formulations of chitosan (CH), starch (ST), and their blends (CH-ST), with the addition of mango leaf extract (MLE) have been polymerized by casting to evaluate their food preservation efficiency. A CH-ST blend with 3% MLE using 7.5 mL of the filmogenic solution proved to be the most effective formulation because of its high bioactivity (ca. 80% and 74% of inhibition growth of S. aureus and E. coli, respectively, and 40% antioxidant capacity). The formulation reduced the water solubility and water vapor permeability while increasing UV protection, properties that provide a better preservation of raspberry fruit after 13 days than the control. Moreover, a novel method of Headspace-Gas Chromatography-Ion Mobility Spectrometry to analyze the volatile profiles of the films is employed, to study the potential modification of the food in contact with the active film. These migrated compounds were shown to be closely related to both the mango extract additions and the film's formulation themselves, showing different fingerprints depending on the film.
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Affiliation(s)
- Cristina Cejudo
- Chemical Engineering and Food Technology Department, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Avda. República Saharaui, s/n, 11510 Cadiz, Spain; (C.C.); (I.R.); (C.M.)
| | - Marta Ferreiro
- Analytical Chemistry Department, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Avda. República Saharaui, s/n, 11510 Cadiz, Spain
| | - Irene Romera
- Chemical Engineering and Food Technology Department, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Avda. República Saharaui, s/n, 11510 Cadiz, Spain; (C.C.); (I.R.); (C.M.)
| | - Lourdes Casas
- Chemical Engineering and Food Technology Department, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Avda. República Saharaui, s/n, 11510 Cadiz, Spain; (C.C.); (I.R.); (C.M.)
| | - Casimiro Mantell
- Chemical Engineering and Food Technology Department, Wine and Agrifood Research Institute (IVAGRO), University of Cadiz, Avda. República Saharaui, s/n, 11510 Cadiz, Spain; (C.C.); (I.R.); (C.M.)
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