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Objective To study the effects of modified atmosphere packaging on the quality changes of lotus seeds during storage. Methods Fresh lotus seeds were used as the test material, and the appearance and nutritional quality of the lotus seeds were treated with a film-covered 20% modified atmosphere packaging (T1), and a film-covered 20% modified atmosphere packaging with 1-methylcyclopropene (T2), with a regular preservation box used as the control (CK). Results The results showed that compared to CK, both T1 and T2 treatments significantly reduced the weight loss and browning of lotus seeds, and maintained the content of nutrients such as vitamin C, amylose, total phenols and soluble solids. Under the condition of 7 days of room temperature storage, the weight loss of CK was 16.4%, T1 was 3.4%, and T2 was 4.0%. The total phenol content of CK, T1 and T2 was 5.453, 9.210 and 10.916 mg/g, respectively. The vitamin C content in T1 and T2 was 0.41 mg/100 g and 0.84 mg/100 g higher than that of the control group, and the amylose content was 0.856 mg/g and 1.438 mg/g higher than that of the control group. Conclusion The results of the study indicate that the T1 and T2 treatments have a good effect in reducing the post-harvest nutrient consumption of lotus seeds and maintaining their color, with T2 treatment showing a more significant effect compared to T1 treatment. This research provides practical evidence for the optimization of post-harvest preservation techniques for fresh lotus seeds.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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