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Lin Y, Lin Y, Zhang H, Lin M, Chen L, Li H, Lin H. Hydrogen peroxide induced changes in the levels of disease-resistant substances and activities of disease-resistant enzymes in relation to the storability of longan fruit. Food Chem X 2023; 20:100923. [PMID: 38144865 PMCID: PMC10740103 DOI: 10.1016/j.fochx.2023.100923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/24/2023] [Accepted: 10/02/2023] [Indexed: 12/26/2023] Open
Abstract
The influences of hydrogen peroxide (H2O2) on the storability and metabolism of disease-resistant substances in fresh longan were investigated. Compared to the control samples, H2O2-treated longan exhibited a higher index of fruit disease, pericarp browning, and pulp breakdown, a higher rate of fruit weight loss, but lower chromaticity values (L*, a* and b*) in pericarp appearance, and a lower commercially acceptable fruit rate. Additionally, H2O2-treated longan showed a lower lignin content, lower activities of enzymes including phenylalnine ammonia lyase (PAL), cinnamate 4-hydroxylase (C4H), 4-coumaryl coenzyme A ligase (4-CL), cinnamate dehydrogenase (CAD), peroxidase (POD), chitinase (CHI), and β-1,3-glucanase (GLU). These data collectively suggest that H2O2 negatively impacted the storability of fresh longan. This can be attributed to H2O2's role in reducing the levels of disease-resistant substances and suppressing the activities of disease-resistant enzymes, implying that H2O2 reduced the postharvest storability of longan by compromising its disease resistance.
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Affiliation(s)
- Yixiong Lin
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou, Fujian 363000, China
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Yifen Lin
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Huili Zhang
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Mengshi Lin
- Food Science Program, Division of Food, Nutrition & Exercise Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Lian Chen
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou, Fujian 363000, China
| | - Hui Li
- School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou, Fujian 363000, China
| | - Hetong Lin
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
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Zhang J, Zhu L, Li KM, Ye J, Xiao X, Xue M, Wang M, Chen YH. Preparation of bio-based modified starch film and analysis of preservation mechanism for sweet cherry. Food Chem X 2022; 16:100490. [PMID: 36339321 PMCID: PMC9634007 DOI: 10.1016/j.fochx.2022.100490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/23/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
Preparation of modified bio-based starch film by casting method. Mechanism characterization of modified bio-based starch film. Modified bio-based starch film has preservation effect on sweet cherry.
This study aimed to synthesize packaging films using bioactive ingredients. The composite film was prepared by blending octenyl succinate cassava starch ester (OSCS) with chitosan (CS) nano-ZnO and then adding ε-polylysine (ε-PL). The study also explored the effect of different concentrations of ε-PL on OSCS/CS/ZnO films. Fourier infrared spectroscopyand fluorescence microscopy revealed that the composite film was formed by both hydrogen bonding and a Schiff base reaction. The diffraction peaks of the original materials in X-ray diffraction disappeared after film formation, indicating good miscibility between the materials. Scanning electron microscope showed that the density of its structure increased with increasing the ε-PL content. The thermogravimetric analysis showed that the addition of ε-PL improved the thermal stability of the composite film to some extent. When used in cherry preservation, the bio-based modified starch film effectively reduced cherry decay, stem dryness, and weight loss, maintained surface color, and increased the soluble solid content.
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Affiliation(s)
- Jie Zhang
- College of Tropical Crops, Hainan University, Haikou 570228, China,Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Lin Zhu
- College of Food Science and Technology, Hainan University, Haikou 570228, China
| | - Kai-mian Li
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Jianqiu Ye
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Xinhui Xiao
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Maofu Xue
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Ming Wang
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agriculture Sciences, Haikou 571101, China
| | - Yin-hua Chen
- College of Tropical Crops, Hainan University, Haikou 570228, China,Corresponding author.
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Amelioration of chilling injury and enhancement of quality maintenance in cold-stored guava fruit by melatonin treatment. Food Chem X 2022; 14:100297. [PMID: 35372825 PMCID: PMC8971855 DOI: 10.1016/j.fochx.2022.100297] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/21/2022] [Accepted: 03/25/2022] [Indexed: 12/01/2022] Open
Abstract
Melatonin treatment ameliorated chilling injury in cold-stored guava fruit. Melatonin treatment reduced cell membrane permeability and weight loss in guava fruit. Melatonin treatment retained higher TSS, total sugar, sucrose and vitamin C in guava. The optimal concentration of melatonin for postharvest guava fruit was 100 μmol/L. Melatonin displayed a great potential application for postharvest guava fruit.
The influence of melatonin treatment on the quality and chilling injury of guavas during storage at 4 ± 1 °C were evaluated. Compared with control group, fruit of guava cv. Xiguahong exposed to various concentrations (50, 100, 150, and 200 μmol/L) of melatonin showed a significantly lower fruit respiration rate, weight loss, cell membrane permeability, and chilling injury index, but a higher commercially acceptable fruit rate, higher peel L*, h° value, and chlorophyll content. Melatonin treatment also delayed the decreases of fruit firmness, sucrose, total soluble sugar, vitamin C, titratable acidity, and total soluble solids. These data indicate that melatonin treatment could increase chilling tolerance and retain quality of cold-stored guavas. Among various concentrations of melatonin treatment, 100 μmol/L melatonin-treated guavas showed the preferable quality properties and lowest chilling injury index. Thus, melatonin may be a novel method of postharvest handling to enhance cold resistance and extend storage-life of cold-stored guava fruit.
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Sun J, Chen H, Xie H, Li M, Chen Y, Hung YC, Lin H. Acidic electrolyzed water treatment retards softening and retains cell wall polysaccharides in pulp of postharvest fresh longans and its possible mechanism. Food Chem X 2022; 13:100265. [PMID: 35498983 PMCID: PMC9040007 DOI: 10.1016/j.fochx.2022.100265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 02/11/2022] [Accepted: 02/21/2022] [Indexed: 12/05/2022] Open
Abstract
AEW delayed pulp softening of longans via suppressing cell wall disassembly. AEW down-regulated expression levels of longan pulp cell wall degrading-related genes. AEW decreased activities of cell wall degrading enzymes in pulp of harvested longans. AEW retained higher levels of longan pulp CWM, CSP, ISP, cellulose, and hemicellulose.
Effects of acidic electrolyzed water (AEW) treatment (pH = 2.5, ACC = 80 mg L−1, 10 min) on pulp firmness, amounts of CWM and CWP, activities and expression of relevant genes of CWDEs in pulp of Fuyan longan during storage at 25 °C were evaluated. Compared to control samples, during storage, AEW-treated fruit retained a higher pulp firmness, prevented WSP formation, reduced the degradation of CSP, cellulose and hemicellulose, and lowered CWDEs activities and their corresponding gene expression. When stored for 5 d, pulp firmness (113.6 g mm−1), CWM (13.9 g kg−1), and CSP (1.4 g kg−1) in AEW-treated fruit displayed the clearly higher contents than those in control samples. These data suggest that AEW treatment can slow down the pulp softening and retain higher pulp CWP levels in postharvest fresh longans, which was because AEW lowered activities of CWDEs and its gene expression levels, and maintained the cell wall structure's integrity.
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Key Words
- 1-MCP, 1-methylcyclopropene
- AEW, acidic electrolyzed water
- Acidic electrolyzed water
- CEL, cellulase
- CSP, covalent-soluble pectin
- CWDEs, cell wall degrading enzymes
- CWM, cell wall materials
- CWP, cell wall polysaccharides
- Cell wall degrading enzymes
- Cell wall polysaccharides
- Gene expression
- ISP, ionic-soluble pectin
- Longan fruit
- NFT, near freezing temperature
- PE, pectinesterase
- PG, polygalacturonase
- Pulp firmness
- WSP, water-soluble pectin
- XET, xyloglucan endotransglycosylase
- β-Gal, β-galactosidase
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Affiliation(s)
- Junzheng Sun
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Hongbin Chen
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou, Fujian 362000, China
| | - Huilin Xie
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Meiling Li
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Yihui Chen
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
- Corresponding authors.
| | - Yen-Con Hung
- Department of Food Science and Technology, University of Georgia, 1109 Experiment Street, Griffin, GA 30223, United States
| | - Hetong Lin
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
- Corresponding authors.
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Abdelgawad KF, Awad AHR, Ali MR, Ludlow RA, Chen T, El-Mogy MM. Increasing the Storability of Fresh-Cut Green Beans by Using Chitosan as a Carrier for Tea Tree and Peppermint Essential Oils and Ascorbic Acid. PLANTS (BASEL, SWITZERLAND) 2022; 11:783. [PMID: 35336665 PMCID: PMC8954194 DOI: 10.3390/plants11060783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
The quality of fresh-cut green beans deteriorates rapidly in storage, which contributes to increased food waste and lower perceived customer value. However, chitosan (Cs) and certain plant essential oils show promise in reducing postharvest quality loss during storage. Here, the effect of Cs and the combinations of Cs + tea tree oil (TTO), Cs +x peppermint oil (PMO), and Cs + ascorbic acid (AsA) on the quality of fresh-cut green bean pods (FC-GB) is studied over a 15-d storage period at 5 °C. All four FC-GB treatments reduced weight loss and maintained firmness during storage when compared to uncoated FC-GB. Furthermore, all treatments showed higher total chlorophyll content, AsA, total phenolic compounds, and total sugars compared to the control. The best treatment for reducing microbial growth was a combination of Cs + AsA. Additionally, the combination of Cs with TTO, PMO, or AsA showed a significant reduction in the browning index and increased the antioxidant capacity of FC-GB up to 15 d postharvest.
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Affiliation(s)
- Karima F. Abdelgawad
- Vegetable Crops Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt; (K.F.A.); (A.H.R.A.)
| | - Asmaa H. R. Awad
- Vegetable Crops Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt; (K.F.A.); (A.H.R.A.)
| | - Marwa R. Ali
- Food Science Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt;
| | - Richard A. Ludlow
- School of Biosciences, Cardiff University, Sir Martin Evans Building, Cardiff CF10 3AX, UK;
| | - Tong Chen
- Key Laboratory of Plant Resources, Institute of Botany, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China;
| | - Mohamed M. El-Mogy
- Vegetable Crops Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt; (K.F.A.); (A.H.R.A.)
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