湖北农业科学 ›› 2026, Vol. 65 ›› Issue (10): 178-187.doi: 10.14088/j.cnki.issn0439-8114.2026.10.026

• 贮藏·加工 • 上一篇    下一篇

体外模拟胃肠消化对粗梗稠李多酚抗氧化活性的影响及其对草莓保鲜效果评价

陈旋, 杨国琴, 周启武   

  1. 滇西科技师范学院,云南 临沧 677000
  • 收稿日期:2026-05-06 出版日期:2026-10-25 发布日期:2026-10-23
  • 作者简介:陈 旋(1990-),女,云南玉溪人,讲师,硕士,主要从事农产品功能活性与开发研究,(电话)15198906163(电子信箱)15198906163@163.com 通信作者:周启武(1987-),男,云南牟定人,副教授,硕士,主要从事农产品质量安全与营养功能研究,(电话)15208830335(电子信箱)zhqiwu1987@163.com。
  • 基金资助:
    云南省科技厅地方本科高校基础研究联合专项(202101BA070001-264); 云南口岸经济中缅沿边产业及民族文化研究专项(DXZX202402); 兴临人才支持计划-产业领军人才专项(2025)

Effects of in vitro simulated gastrointestinal digestion on antioxidant activities of Prunus napaulensis polyphenols and evaluation of their preservation efficacy for strawberry

CHEN Xuan, YANG Guo-qin, ZHOU Qi-wu   

  1. West Yunnan University, Lincang 677000,Yunnan,China
  • Received:2026-05-06 Published:2026-10-25 Online:2026-10-23

摘要: 为明确粗梗稠李[Prunus napaulensis (Ser.) Steud.]经胃肠消化后生物活性的变化规律,探究其多酚的抗氧化性与抑菌特性,并验证其实际保鲜应用价值,采用体外模拟胃肠消化对粗梗稠李进行抗氧化活性研究,并通过将粗梗稠李多酚、壳聚糖和乳酸链球菌素复合涂膜草莓,进行贮藏试验。结果表明,粗梗稠李多酚在胃消化时段的抗氧化能力稍弱,而经过肠消化后抗氧化能力各项测定指标有明显增长趋势。采用复合涂膜技术的草莓样品在贮藏过程中失重率和腐败率明显降低,同时有效抑制了可滴定酸含量的减少,并有效维持了草莓中维生素C和可溶性固形物含量。其中,复合涂膜剂配方为0.05 mg/mL粗梗稠李多酚粗提液、2%壳聚糖和0.03%乳酸链球菌素时处理效果最佳,能保持草莓良好的品质和商品价值。研究揭示了粗梗稠李抗氧化活性成分的消化增效作用,填补了该野生资源在果蔬保鲜领域的应用研究空白,为粗梗稠李资源化高值开发、绿色无添加果蔬天然保鲜剂的研制与落地应用提供完整理论依据和试验数据支撑。

关键词: 粗梗稠李[Prunus napaulensis (Ser.) Steud.], 多酚, 体外模拟胃肠消化, 抗氧化活性, 草莓保鲜, 复合涂膜

Abstract: To clarify the variation in biological activities of Prunus napaulensis following gastrointestinal digestion, explore the antioxidant and antibacterial properties of its polyphenols, and verify its practical application value in preservation, in vitro simulated gastrointestinal digestion was adopted to investigate the antioxidant activities of Prunus napaulensis. Storage experiments were carried out by coating strawberries with composite films consisting of Prunus napaulensis polyphenols, chitosan and nisin. The results showed that the antioxidant capacity of Prunus napaulensis polyphenols was relatively weak during gastric digestion, whereas all measured antioxidant indices exhibited a distinct increasing trend after intestinal digestion. For strawberry samples treated with the composite coating, weight-loss rate and decay rate were significantly reduced during storage. Meanwhile, the decrease in titratable acid content was effectively inhibited, and the contents of vitamin C and soluble solids in strawberries were well maintained. Among all treatments, the composite coating formulated with 0.05 mg/mL crude Prunus napaulensis polyphenol extract, 2% chitosan and 0.03% nisin achieved the optimal performance, which could preserve favorable quality and commercial value of strawberries. This study revealed the digestion-induced enhancement effect of antioxidant components from Prunus napaulensis, filled the research gap regarding the application of this wild resource in fruit and vegetable preservation, and provided a comprehensive theoretical basis and experimental data support for high-value resource utilization of Prunus napaulensis, as well as the development and practical application of green additive-free natural fruit-and-vegetable preservatives.

Key words: Prunus napaulensis, polyphenols, in vitro simulated gastrointestinal digestion, antioxidant activity, strawberry preservation, composite coating

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