Preparation and characterization of lotus root starch based bioactive edible film containing quercetin-encapsulated nanoparticle and its effect on grape preservation

文献类型： 外文期刊

第一作者： Zeng, Ya-Fan

作者： Zeng, Ya-Fan;Chen, Ying-Ying;Zheng, Chao;Hong, Cheng-Zhi;Li, Qiang-Ming;Yang, Xue-Fei;Pan, Li-Hua;Luo, Jian-Ping;Li, Xue-Ying;Zha, Xue-Qiang;Zeng, Ya-Fan;Chen, Ying-Ying;Zheng, Chao;Hong, Cheng-Zhi;Li, Qiang-Ming;Yang, Xue-Fei;Pan, Li-Hua;Luo, Jian-Ping;Li, Xue-Ying;Zha, Xue-Qiang;Deng, Yuan-Yuan

作者机构：

关键词： Bioactive edible film; Carboxymethyl lotus root starch; Quercetin; Nanoparticles; Grape preservation

期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：10.7； 五年影响因子：10.2 ）

ISSN： 0144-8617

年卷期： 2024 年 323 卷

页码：

收录情况： SCI

摘要： The present work aimed to develop a novel bioactive edible film prepared by adding quercetin-encapsulated carboxymethyl lotus root starch nanoparticles (QNPs),gellan gum and lotus root starch. The physicochemical characteristics, preservation effect and mechanism on grapes of the prepared film were investigated. SEM results showed that QNPs (5 %) were dispersed uniformly within lotus root starch matrix, indicating the formation of a stable composite nanoparticle film. In addition, the incorporation of QNPs (5 %) effectively improved the mechanical strength, thermal stability, barrier property and antioxidant activity of QNPs/starch film. Moreover, compared with the control, the QNPs/starch (5 %) film showed effective preservation effect on grapes during 21 days of storage at room temperature, based on the characterization by grape appearance, weight loss, firmness, and titratable acidity. Further studies found that QNPs/starch (5 %) film could exhibit enhanced antioxidant activity and potent anti-fungal ability against Botrytis cinerea, , thus extending grape shelf life. In conclusion, the obtained QNPs/starch (5 %) film presented a promising application as an edible packing material for fruit preservation by antioxidant and preventing Botrytis cinerea contamination.

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