Impact of Low-Frequency Alternating Electromagnetic Fields on Postharvest Preservation of Satsuma Mandarins
Low-frequency alternating electromagnetic fields (LF-AEMF) represent an innovative processing technology with significant potential for extending the shelf life of fruits and vegetables by modulating key physiological processes. In this study, the impact of the LF-AEMF intensities (1300, 1800, and 2...
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MDPI AG
2025-06-01
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| author | Qunhui Dong Jiamiao Hu Yihui Lu Yujin Cao Shaoling Lin |
| author_facet | Qunhui Dong Jiamiao Hu Yihui Lu Yujin Cao Shaoling Lin |
| author_sort | Qunhui Dong |
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| description | Low-frequency alternating electromagnetic fields (LF-AEMF) represent an innovative processing technology with significant potential for extending the shelf life of fruits and vegetables by modulating key physiological processes. In this study, the impact of the LF-AEMF intensities (1300, 1800, and 2500 V) on the postharvest preservation of satsuma mandarins was evaluated. Compared to the control group, the LF-AEMF-treated samples exhibited reduced weight loss (0.62% vs. 2.11%), respiration rate (32.73 vs. 40.08 mg/kg·h), and malondialdehyde (MDA) content (40.80 vs. 34.87 nmol/g) after 40 days of storage. In addition, LF-AEMF treatment also effectively preserved titratable acidity (TA) (0.34% vs. 0.30%), vitamin C (Vc) content (7.77 vs. 7.05 g/100 g), and phenylalanine ammonia-lyase (PAL) activity (79.757 vs. 62.395 U/g). E-nose analysis and low-field NMR further revealed that the application of LF-AEMF effectively facilitated the superior preservation of the intrinsic flavor profile of the satsuma mandarins and mitigated the loss of free water within the fruit. Overall, this research provides valuable insights for the potential application of LF-AEMF in extending the storage life of citrus fruits, which may also be applicable to other seasonal fruits and vegetables that require long-term storage. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2025-06-01 |
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| spelling | doaj-art-e5a67ffaa68f455cac7368977c42ab2a2025-08-20T03:50:17ZengMDPI AGFoods2304-81582025-06-011413230710.3390/foods14132307Impact of Low-Frequency Alternating Electromagnetic Fields on Postharvest Preservation of Satsuma MandarinsQunhui Dong0Jiamiao Hu1Yihui Lu2Yujin Cao3Shaoling Lin4College of Food Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Food Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Food Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Food Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Food Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaLow-frequency alternating electromagnetic fields (LF-AEMF) represent an innovative processing technology with significant potential for extending the shelf life of fruits and vegetables by modulating key physiological processes. In this study, the impact of the LF-AEMF intensities (1300, 1800, and 2500 V) on the postharvest preservation of satsuma mandarins was evaluated. Compared to the control group, the LF-AEMF-treated samples exhibited reduced weight loss (0.62% vs. 2.11%), respiration rate (32.73 vs. 40.08 mg/kg·h), and malondialdehyde (MDA) content (40.80 vs. 34.87 nmol/g) after 40 days of storage. In addition, LF-AEMF treatment also effectively preserved titratable acidity (TA) (0.34% vs. 0.30%), vitamin C (Vc) content (7.77 vs. 7.05 g/100 g), and phenylalanine ammonia-lyase (PAL) activity (79.757 vs. 62.395 U/g). E-nose analysis and low-field NMR further revealed that the application of LF-AEMF effectively facilitated the superior preservation of the intrinsic flavor profile of the satsuma mandarins and mitigated the loss of free water within the fruit. Overall, this research provides valuable insights for the potential application of LF-AEMF in extending the storage life of citrus fruits, which may also be applicable to other seasonal fruits and vegetables that require long-term storage.https://www.mdpi.com/2304-8158/14/13/2307alternating electromagnetic fieldcitrus fruitssatsuma mandarinspostharvest storageelectromagnetic field intensity |
| spellingShingle | Qunhui Dong Jiamiao Hu Yihui Lu Yujin Cao Shaoling Lin Impact of Low-Frequency Alternating Electromagnetic Fields on Postharvest Preservation of Satsuma Mandarins Foods alternating electromagnetic field citrus fruits satsuma mandarins postharvest storage electromagnetic field intensity |
| title | Impact of Low-Frequency Alternating Electromagnetic Fields on Postharvest Preservation of Satsuma Mandarins |
| title_full | Impact of Low-Frequency Alternating Electromagnetic Fields on Postharvest Preservation of Satsuma Mandarins |
| title_fullStr | Impact of Low-Frequency Alternating Electromagnetic Fields on Postharvest Preservation of Satsuma Mandarins |
| title_full_unstemmed | Impact of Low-Frequency Alternating Electromagnetic Fields on Postharvest Preservation of Satsuma Mandarins |
| title_short | Impact of Low-Frequency Alternating Electromagnetic Fields on Postharvest Preservation of Satsuma Mandarins |
| title_sort | impact of low frequency alternating electromagnetic fields on postharvest preservation of satsuma mandarins |
| topic | alternating electromagnetic field citrus fruits satsuma mandarins postharvest storage electromagnetic field intensity |
| url | https://www.mdpi.com/2304-8158/14/13/2307 |
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