中国食品学报

采前喷施壳寡糖对采后西梅抗氧化代谢及贮藏品质的影响

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范雅青 ¹ , 吴颖颉 ¹ , 朱璇 ¹ , 张新祺 ¹ , 李文博 ¹ , 张璇 ¹ , 赵亚婷 ¹

中国食品学报 | 贮藏与保鲜 2026,26(1): 247-259

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中国食品学报 | 贮藏与保鲜 2026, 26(1): 247-259

采前喷施壳寡糖对采后西梅抗氧化代谢及贮藏品质的影响

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范雅青¹, 吴颖颉¹, 朱璇¹, 张新祺¹, 李文博¹, 张璇¹, 赵亚婷¹

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^1.新疆农业大学食品科学与药学学院乌鲁木齐 830052

Effect of Preharvest Spraying of Chitosan on Antioxidant Metabolism and Storage Quality of Postharvest Prunes

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出版时间: 2026-01-31 doi: 10.16429/j.1009-7848.2026.01.022

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目的:探究采前喷施壳寡糖(COS)对采后西梅抗氧化代谢及贮藏品质的影响。方法:以西梅为试材，采用不同质量浓度的(0.5，1.0，2.0 g/L)COS分别在坐果期、膨大期、转色期和成熟期喷施，采后将果实置于温度(1.0±1)℃、相对湿度90%～95%条件下贮藏90 d，每15 d取样1次，测定相关指标。结果:采前喷施COS使西梅果实在贮藏期间保持较高的硬度、可滴定酸和可溶性固形物含量，有效抑制了表面色泽变暗，显著降低了西梅果实呼吸强度和失重率，感官品质明显优于对照组，其中1.0 g/L COS处理组与对照组相比，硬度高57.24%，可滴定酸含量高115.38%，可溶性固形物含量高19.38%，呼吸强度降低22.09%，失重率低48.42%，效果最佳。与对照组相比，采前喷施1.0 g/L COS促进了谷胱甘肽(GSH)和抗坏血酸(ASA)含量的积累。提高了过氧化氢酶(CAT)、过氧化物酶(POD)、超氧化物歧化酶(SOD)、抗坏血酸过氧化物酶(APX)、谷胱甘肽还原酶(GR)活性，降低了超氧阴离子(O₂-·)产生速率和过氧化氢(H2O₂)的含量，抑制了丙二醛(MDA)含量积累与细胞膜渗透率的上升。结论:采前喷施COS能通过调控西梅果实贮藏期间的抗氧化代谢，保持其贮藏品质。

关键词

壳寡糖 / 采前喷施 / 西梅 / 抗氧化代谢 / 贮藏品质

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Objective: To investigate the effects of preharvest spraying of chitosan oligosaccharides (COS) on the antioxidant metabolism and storage quality of postharvest prunes. Methods: Xinjiang ｀French' prunes were used as test material， and different concentrations of COS (0.5， 1.0， 2.0 g/L) were sprayed during fruit set， expansion， color change and ripening， respectively. The postharvest fruits were stored at a temperature of (1.0±1) ℃ and a relative humidity of 90%-95% for 90 d， and the relevant indexes were determined by sampling every 15 d. The results were summarized as follows Samples were taken every 15 d and related indexes were measured. Results: Pre-harvest application of COS maintained higher firmness， titratable acidity， and soluble solids content in plum fruits during storage. It effectively suppressed surface color darkening， significantly reduced respiratory intensity and weight loss rate， with superior sensory quality compared to the control group. Among the treatments， the 1.0 g/L COS group exhibited the most favorable effects: 57.24% higher firmness， 115.38% higher titratable acidity， 19.38% higher soluble solids content， 22.09% lower respiration rate， and 48.42% lower weight loss compared to the control. Compared with the control group， pre-harvest spraying with 1.0 g/L COS promoted the accumulation of ascorbic acid (ASA) and glutathione (GSH) content. Increased levels of superoxide dismutase (SOD)， catalase (CAT)， peroxidase (POD)， ascorbate peroxidase (APX)， glutathione reductase (GR) activity， reduced the rate of superoxide anion (O₂-·) production and hydrogen peroxide (H2O₂) content， and inhibited the accumulation of malondialdehyde (MDA) content and the increase of cell membrane. Conclusion: The preharvest spraying of COS can regulate the antioxidant metabolism of prune fruits during storage and maintain the storage quality of prune fruits.

Key words

chitosan oligosaccharides / pre-harvest spraying / plums / antioxidant metabolism / storage quality

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范雅青, 吴颖颉, 朱璇, 张新祺, 李文博, 张璇, 赵亚婷. 采前喷施壳寡糖对采后西梅抗氧化代谢及贮藏品质的影响. 中国食品学报, 2026 , 26 (1) : 247 -259 . DOI: 10.16429/j.1009-7848.2026.01.022

. Effect of Preharvest Spraying of Chitosan on Antioxidant Metabolism and Storage Quality of Postharvest Prunes[J]. Journal of Chinese Institute of Food Science and Technology, 2026 , 26 (1) : 247 -259 . DOI: 10.16429/j.1009-7848.2026.01.022

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自治区重点研发计划项目

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2026年第26卷第1期

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doi: 10.16429/j.1009-7848.2026.01.022

接收时间：2025-01-02
首发时间：2026-05-27
出版时间：2026-01-31

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收稿日期：2025-01-02

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自治区重点研发计划项目

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^1.新疆农业大学食品科学与药学学院乌鲁木齐 830052

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2种不同金属材料的力学参数

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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