Construction and characterization of Pickering emulsion stabilized by agar-phenylalanine complex microgel particles

IF 10.7 1区化学 Q1 CHEMISTRY, APPLIED

Carbohydrate Polymers Pub Date : 2025-06-30 DOI:10.1016/j.carbpol.2025.123985

Zizhou Chen , Xiuling Wang , MeixiLiu , Huifen Weng , Xiaoyan Zhuang , Anfeng Xiao , Qiong Xiao

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引用次数: 0

Abstract

Polysaccharide-based food-grade microgel particles show promise as Pickering stabilizers when modified with biological components to optimize wettability. This study developed agar-amino acid complex microgel particles (AAMs) by integrating non-polar amino acids (e.g., phenylalanine) into agar's gel network via hydrogen bonding and hydrophobic interactions. Through thermoreversible gelation and fragmentation, AAMs were engineered to act as sustainable emulsifiers. The agar-phenylalanine complex microgel particles (APMs) exhibited enhanced surface hydrophobicity and negative charge compared to native agar microgels, enabling robust adsorption at oil-water interfaces. APMs stabilized emulsions via a self-assembled network that restricted droplet mobility and provided a physical barrier against coalescence. Critically, APM-stabilized emulsions retained stability under extreme conditions (pH 1–11, temperatures up to 70 °C), demonstrating suitability for diverse food applications. This work advances green strategies for fabricating food-grade Pickering emulsions with tunable environmental resilience.

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琼脂-苯丙氨酸复合微凝胶稳定皮克林乳液的构建与表征

以多糖为基础的食品级微凝胶颗粒在与生物成分修饰以优化润湿性时显示出作为皮克林稳定剂的希望。本研究通过氢键和疏水相互作用将非极性氨基酸（如苯丙氨酸）整合到琼脂凝胶网络中，开发了琼脂-氨基酸复合物微凝胶颗粒（AAMs）。通过热可逆凝胶化和破碎，AAMs被设计成可持续的乳化剂。与天然琼脂微凝胶相比，琼脂-苯丙氨酸复合物微凝胶颗粒（APMs）表现出增强的表面疏水性和负电荷，在油水界面具有强大的吸附能力。APMs通过一个自组装的网络来稳定乳剂，该网络限制了液滴的流动性，并提供了防止聚结的物理屏障。关键是，apm稳定的乳剂在极端条件下（pH 1-11，温度高达70°C）保持稳定性，证明适合各种食品应用。这项工作推进绿色战略制造食品级皮克林乳剂可调的环境弹性。

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来源期刊

Carbohydrate Polymers 化学-高分子科学

CiteScore

22.40

自引率

8.00%

发文量

1286

审稿时长

47 days

期刊介绍： Carbohydrate Polymers stands as a prominent journal in the glycoscience field, dedicated to exploring and harnessing the potential of polysaccharides with applications spanning bioenergy, bioplastics, biomaterials, biorefining, chemistry, drug delivery, food, health, nanotechnology, packaging, paper, pharmaceuticals, medicine, oil recovery, textiles, tissue engineering, wood, and various aspects of glycoscience. The journal emphasizes the central role of well-characterized carbohydrate polymers, highlighting their significance as the primary focus rather than a peripheral topic. Each paper must prominently feature at least one named carbohydrate polymer, evident in both citation and title, with a commitment to innovative research that advances scientific knowledge.