Melatonin Treatment Affects Wax Composition and Maintains Storage Quality in ‘Kongxin’ Plum (<i>Prunus salicina</i> L. cv) during Postharvest
Cuticular wax is an essential barrier against biological and abiotic stress and is also an important factor affecting fruit storage quality. This paper investigated the effect of melatonin treatment on cuticular wax and the storage quality of plum fruit at low temperature storage of 4 ± 1 °C. ‘Kongx...
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MDPI AG
2022-12-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/11/24/3972 |
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| author | Xin Lin Shian Huang Donald J. Huber Qin Zhang Xuan Wan Junsen Peng Dengcan Luo Xiaoqing Dong Shouliang Zhu |
| author_facet | Xin Lin Shian Huang Donald J. Huber Qin Zhang Xuan Wan Junsen Peng Dengcan Luo Xiaoqing Dong Shouliang Zhu |
| author_sort | Xin Lin |
| collection | DOAJ |
| description | Cuticular wax is an essential barrier against biological and abiotic stress and is also an important factor affecting fruit storage quality. This paper investigated the effect of melatonin treatment on cuticular wax and the storage quality of plum fruit at low temperature storage of 4 ± 1 °C. ‘Kongxin’ plum was treated with 150 μmol·L<sup>−1</sup> melatonin, dried overnight at room temperature 25 ± 1 °C, and then stored at 4 ± 1 °C for 40 d. The microstructure of the fruit epidermis was examined after 0, 20, and 40 d of storage, and the wax composition and fruit storage quality were measured at 10 d intervals. The results demonstrated that melatonin promoted the disintegration and thickening of rod-shaped waxy crystals of ‘Kongxin’ plum fruit and inhibited the combination of disintegrated wax and inner wax. Melatonin maintained fruit firmness and decreased the correlation between fruit firmness and other storage quality parameters. The correlation between firmness and wax composition was enhanced. Melatonin promoted long-chain alkanes that were positively correlated with firmness and water retention and strengthened the correlation between the length of the alkane chain and storage quality parameters but reduced the difference between alkane isomers and storage quality parameters. |
| first_indexed | 2024-03-09T16:43:19Z |
| format | Article |
| id | doaj.art-c4f81952d79446ff9a2c60099d66deef |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-09T16:43:19Z |
| publishDate | 2022-12-01 |
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| record_format | Article |
| series | Foods |
| spelling | doaj.art-c4f81952d79446ff9a2c60099d66deef2023-11-24T14:50:08ZengMDPI AGFoods2304-81582022-12-011124397210.3390/foods11243972Melatonin Treatment Affects Wax Composition and Maintains Storage Quality in ‘Kongxin’ Plum (<i>Prunus salicina</i> L. cv) during PostharvestXin Lin0Shian Huang1Donald J. Huber2Qin Zhang3Xuan Wan4Junsen Peng5Dengcan Luo6Xiaoqing Dong7Shouliang Zhu8Fruit Crops Center of Guizhou Engineering Research, College of Agricultural, Guizhou University, Guizhou 550025, ChinaFruit Crops Center of Guizhou Engineering Research, College of Agricultural, Guizhou University, Guizhou 550025, ChinaHorticultural Sciences Department, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611-0690, USAFruit Crops Center of Guizhou Engineering Research, College of Agricultural, Guizhou University, Guizhou 550025, ChinaFruit Crops Center of Guizhou Engineering Research, College of Agricultural, Guizhou University, Guizhou 550025, ChinaFruit Crops Center of Guizhou Engineering Research, College of Agricultural, Guizhou University, Guizhou 550025, ChinaFruit Crops Center of Guizhou Engineering Research, College of Agricultural, Guizhou University, Guizhou 550025, ChinaFruit Crops Center of Guizhou Engineering Research, College of Agricultural, Guizhou University, Guizhou 550025, ChinaGuizhou Workstation for Fruit and Vegetables, Guizhou 550025, ChinaCuticular wax is an essential barrier against biological and abiotic stress and is also an important factor affecting fruit storage quality. This paper investigated the effect of melatonin treatment on cuticular wax and the storage quality of plum fruit at low temperature storage of 4 ± 1 °C. ‘Kongxin’ plum was treated with 150 μmol·L<sup>−1</sup> melatonin, dried overnight at room temperature 25 ± 1 °C, and then stored at 4 ± 1 °C for 40 d. The microstructure of the fruit epidermis was examined after 0, 20, and 40 d of storage, and the wax composition and fruit storage quality were measured at 10 d intervals. The results demonstrated that melatonin promoted the disintegration and thickening of rod-shaped waxy crystals of ‘Kongxin’ plum fruit and inhibited the combination of disintegrated wax and inner wax. Melatonin maintained fruit firmness and decreased the correlation between fruit firmness and other storage quality parameters. The correlation between firmness and wax composition was enhanced. Melatonin promoted long-chain alkanes that were positively correlated with firmness and water retention and strengthened the correlation between the length of the alkane chain and storage quality parameters but reduced the difference between alkane isomers and storage quality parameters.https://www.mdpi.com/2304-8158/11/24/3972melatonin‘Kongxin’ plumcuticular waxmorphologycompositionstorage quality |
| spellingShingle | Xin Lin Shian Huang Donald J. Huber Qin Zhang Xuan Wan Junsen Peng Dengcan Luo Xiaoqing Dong Shouliang Zhu Melatonin Treatment Affects Wax Composition and Maintains Storage Quality in ‘Kongxin’ Plum (<i>Prunus salicina</i> L. cv) during Postharvest Foods melatonin ‘Kongxin’ plum cuticular wax morphology composition storage quality |
| title | Melatonin Treatment Affects Wax Composition and Maintains Storage Quality in ‘Kongxin’ Plum (<i>Prunus salicina</i> L. cv) during Postharvest |
| title_full | Melatonin Treatment Affects Wax Composition and Maintains Storage Quality in ‘Kongxin’ Plum (<i>Prunus salicina</i> L. cv) during Postharvest |
| title_fullStr | Melatonin Treatment Affects Wax Composition and Maintains Storage Quality in ‘Kongxin’ Plum (<i>Prunus salicina</i> L. cv) during Postharvest |
| title_full_unstemmed | Melatonin Treatment Affects Wax Composition and Maintains Storage Quality in ‘Kongxin’ Plum (<i>Prunus salicina</i> L. cv) during Postharvest |
| title_short | Melatonin Treatment Affects Wax Composition and Maintains Storage Quality in ‘Kongxin’ Plum (<i>Prunus salicina</i> L. cv) during Postharvest |
| title_sort | melatonin treatment affects wax composition and maintains storage quality in kongxin plum i prunus salicina i l cv during postharvest |
| topic | melatonin ‘Kongxin’ plum cuticular wax morphology composition storage quality |
| url | https://www.mdpi.com/2304-8158/11/24/3972 |
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