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

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

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  • NETL
  • NSTL
  • Elsevier
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.

ZeinBiobased nanopreservativeIn-situ co-precipitationAntimicrobialFruit protectionPHYSICOCHEMICAL STABILITYCOMPOSITE NANOPARTICLESFLASH NANOPRECIPITATIONRESVERATROLFABRICATIONMECHANISMRELEASE

Fang, Chunli、Fu, Zhinan、Wei, Nan、Wei, Jia、Li, Shuying、Feng, Ting、Tan, Zicheng、Wang, Junyou、Wu, Bin、Guo, Xuhong

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Shihezi University School of Chemistry and Chemical Engineering||Inst Agroprod Storage & Proc

East China University of Science and Technology State Key Laboratory of Chemical Engineering

Inst Agroprod Storage & Proc

Shihezi University School of Chemistry and Chemical Engineering||East China University of Science and Technology State Key Laboratory of Chemical Engineering

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2025

10.1016/j.foodhyd.2025.111529

Food hydrocolloids

Food hydrocolloids

SCI
ISSN：0268-005X
年,卷(期)：2025.168(Dec.)
  • 57