新疆农业科学院机构知识库

Bioactive pterostilbene encapsulated in zein via an in-situ co-precipitation strategy for efficient antimicrobial and fruit preservative

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文献类型：外文期刊

作者： Fang, Chunli ¹ ; Fu, Zhinan ³ ; Wei, Nan ² ; Wei, Jia ² ; Li, Shuying ² ; Feng, Ting ² ; Tan, Zicheng ² ; Wang, Junyou ³ ; Wu, Bin ² ; Guo, Xuhong ¹ ;

作者机构： 1.Shihezi Univ, Sch Chem & Chem Engn, State Key Lab Incubat Base Green Proc Chem Engn, Shihezi 832000, Xinjiang, Peoples R China

2.Inst Agroprod Storage & Proc, Xinjiang Acad Agr Sci, Urumqi 830091, Xinjiang, Peoples R China

3.East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

关键词： Zein; Biobased nanopreservative; In-situ co-precipitation; Antimicrobial; Fruit protection

期刊名称：FOOD HYDROCOLLOIDS （影响因子：12.4；五年影响因子：13.3 ）

ISSN： 0268-005X

年卷期： 2025 年 168 卷

页码：

收录情况： SCI

摘要： Pterostilbene (PTS) mainly originated from grapes and palm trees, is a promising bioactive phytoalexin, as it possesses excellent activity against the food-deteriorating microorganisms. For effective use in food preservation, stable encapsulation of a large amount of low-soluble PTS within biomaterials is crucial. In this work, plantsourced zein macromolecule was used for the efficient encapsulation of PTS (PTS-loaded NPs) via an in-situ co-precipitation strategy for the first time. Compared with conventional stirring precipitation methods, this flowbased new approach demonstrated superior encapsulation efficiency (>93 %) and controllable operating mode. By regulating fluid-involved parameters such as feeding components and flow rates, the particle size, size distribution, and PTS loading efficiency could be easily adjusted. The optimal PTS-loaded NPs demonstrated exceptional storage stability (>14 days), prolonged release property (>48 h), and enhanced antioxidant activity. Additionally, the PTS-loaded NPs exhibited strong antimicrobial action, reducing the growth of A. niger by 50 % and that of E. coli and S. aureus by 99 % when compared to the control. Profiting from the food-grade biomaterial, the non-toxic PTS-loaded NPs enhanced the shelf life of strawberries over 3 days when compared to control with respect to color, weight loss, firmness, and total soluble solids.

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