Propyl Gallate Treatment Improves the Postharvest Quality of Winter Jujube (<i>Zizyphus jujuba</i> Mill. cv. Dongzao) by Regulating Antioxidant Metabolism and Maintaining the Structure of Peel
The quality and color of winter jujube fruits are easy to change after harvest. We studied the regulation mechanism of propyl gallate (PG) on post-harvest physiological quality of winter jujube, from the perspective of antioxidant metabolism and peel structure. In our research, winter jujube fruits...
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2022-01-01
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author | Chao Wang Cunkun Chen Xiaoyang Zhao Caie Wu Xiaohong Kou Zhaohui Xue |
author_facet | Chao Wang Cunkun Chen Xiaoyang Zhao Caie Wu Xiaohong Kou Zhaohui Xue |
author_sort | Chao Wang |
collection | DOAJ |
description | The quality and color of winter jujube fruits are easy to change after harvest. We studied the regulation mechanism of propyl gallate (PG) on post-harvest physiological quality of winter jujube, from the perspective of antioxidant metabolism and peel structure. In our research, winter jujube fruits were treated with 0.001 mol L<sup>−1</sup> PG solution for 20 min. Our results showed that PG delayed the development of peel color, and improved the firmness, total soluble solids (TSS), and titratable acid (TA) of winter jujube. Meanwhile, the PG treatment had higher content of total phenols, total flavonoids, ascorbic acid (AsA), and reduced glutathione (GSH), and kept the enzyme activity including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POD) at a higher level. PG treatment reduced membrane oxidative damage and maintained the integrity of pericarp structure by reducing electrolyte leakage (EL), lipoxygenase activity (LOX), hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), and malondialdehyde (MDA) content in the peel. Accordingly, PG improved the postharvest quality of jujube fruits by regulating antioxidant metabolism and maintaining the structure of peel. The appropriate concentration of PG has good application potential in the storage and preservation of fresh fruits such as winter jujube. |
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spelling | doaj.art-7b7a784203084e94852078f5fde183f92023-11-23T13:45:59ZengMDPI AGFoods2304-81582022-01-0111223710.3390/foods11020237Propyl Gallate Treatment Improves the Postharvest Quality of Winter Jujube (<i>Zizyphus jujuba</i> Mill. cv. Dongzao) by Regulating Antioxidant Metabolism and Maintaining the Structure of PeelChao Wang0Cunkun Chen1Xiaoyang Zhao2Caie Wu3Xiaohong Kou4Zhaohui Xue5School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaNational Engineering Technology Research Center for Preservation of Agricultural Products, Key Laboratory of Storage of Agricultural Products, Ministry of Agriculture and Rural Affairs, Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Tianjin 300384, ChinaSchool of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaCollege of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, ChinaSchool of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaSchool of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, ChinaThe quality and color of winter jujube fruits are easy to change after harvest. We studied the regulation mechanism of propyl gallate (PG) on post-harvest physiological quality of winter jujube, from the perspective of antioxidant metabolism and peel structure. In our research, winter jujube fruits were treated with 0.001 mol L<sup>−1</sup> PG solution for 20 min. Our results showed that PG delayed the development of peel color, and improved the firmness, total soluble solids (TSS), and titratable acid (TA) of winter jujube. Meanwhile, the PG treatment had higher content of total phenols, total flavonoids, ascorbic acid (AsA), and reduced glutathione (GSH), and kept the enzyme activity including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POD) at a higher level. PG treatment reduced membrane oxidative damage and maintained the integrity of pericarp structure by reducing electrolyte leakage (EL), lipoxygenase activity (LOX), hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), and malondialdehyde (MDA) content in the peel. Accordingly, PG improved the postharvest quality of jujube fruits by regulating antioxidant metabolism and maintaining the structure of peel. The appropriate concentration of PG has good application potential in the storage and preservation of fresh fruits such as winter jujube.https://www.mdpi.com/2304-8158/11/2/237winter jujubepropyl gallateantioxidant enzyme activitynon-enzymatic antioxidantpeel microstructure |
spellingShingle | Chao Wang Cunkun Chen Xiaoyang Zhao Caie Wu Xiaohong Kou Zhaohui Xue Propyl Gallate Treatment Improves the Postharvest Quality of Winter Jujube (<i>Zizyphus jujuba</i> Mill. cv. Dongzao) by Regulating Antioxidant Metabolism and Maintaining the Structure of Peel Foods winter jujube propyl gallate antioxidant enzyme activity non-enzymatic antioxidant peel microstructure |
title | Propyl Gallate Treatment Improves the Postharvest Quality of Winter Jujube (<i>Zizyphus jujuba</i> Mill. cv. Dongzao) by Regulating Antioxidant Metabolism and Maintaining the Structure of Peel |
title_full | Propyl Gallate Treatment Improves the Postharvest Quality of Winter Jujube (<i>Zizyphus jujuba</i> Mill. cv. Dongzao) by Regulating Antioxidant Metabolism and Maintaining the Structure of Peel |
title_fullStr | Propyl Gallate Treatment Improves the Postharvest Quality of Winter Jujube (<i>Zizyphus jujuba</i> Mill. cv. Dongzao) by Regulating Antioxidant Metabolism and Maintaining the Structure of Peel |
title_full_unstemmed | Propyl Gallate Treatment Improves the Postharvest Quality of Winter Jujube (<i>Zizyphus jujuba</i> Mill. cv. Dongzao) by Regulating Antioxidant Metabolism and Maintaining the Structure of Peel |
title_short | Propyl Gallate Treatment Improves the Postharvest Quality of Winter Jujube (<i>Zizyphus jujuba</i> Mill. cv. Dongzao) by Regulating Antioxidant Metabolism and Maintaining the Structure of Peel |
title_sort | propyl gallate treatment improves the postharvest quality of winter jujube i zizyphus jujuba i mill cv dongzao by regulating antioxidant metabolism and maintaining the structure of peel |
topic | winter jujube propyl gallate antioxidant enzyme activity non-enzymatic antioxidant peel microstructure |
url | https://www.mdpi.com/2304-8158/11/2/237 |
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