ph调节OSA淀粉/乳清蛋白纤维复合物的结构和界面特性以改善柑橘精油乳剂的储存和消化稳定性

IF 10.7 1区化学 Q1 CHEMISTRY, APPLIED

Carbohydrate Polymers Pub Date : 2025-06-26 DOI:10.1016/j.carbpol.2025.123961

Run Ji , Haowen Sun , Zhao Chen , Shuang Song , Hao Guo , Xiuling Zhang , Fei Wu

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引用次数: 0

摘要

本研究以乳清蛋白纤维（WPF）和OSA变性淀粉（OFE）为基础，研制了柑橘精油（CEO）乳状液，并通过pH调节提高了CEO乳状液的稳定性和生物可及性。系统考察了ph调节和OFE改性对WPF-OFE结构、乳化性能和CEO释放行为的影响。傅里叶红外光谱（FTIR）和分子对接分析表明，OFE为WPF的有序结构的形成提供了基础，WPF与OFE之间的主要相互作用是氢键和静电相互作用。与WPF相比，ofe改性的WPF增强了油水界面的吸附。WPF-OFE乳液具有较高的乳化活性指数和乳液稳定性指数，特别是在pH 6.0时，其值分别达到23.89±0.48 m2/g和46.81±1.41 min。值得注意的是，显著改善(P <；0.05)的贮藏稳定性、紫外稳定性和热稳定性，证实了WPF-OFE在提高乳状液稳定性方面的作用。在pH 6.0时，OFE通过抑制胃消化过程中WPF的降解有效延缓CEO的释放，并通过降低肠消化过程中油滴的空间阻力促进CEO的释放，最终实现CEO的高生物利用度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

pH-regulated structural and interfacial properties of OSA starch/whey protein fiber complexes to improve the storage and digestive stability of citrus essential oil emulsions

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pH-regulated structural and interfacial properties of OSA starch/whey protein fiber complexes to improve the storage and digestive stability of citrus essential oil emulsions

In this study, an emulsion delivery system for citrus essential oil (CEO) based on whey protein fiber (WPF) and OSA modified starch (OFE) was successfully developed, and the stability and bioaccessibility of the CEO emulsion were enhanced by pH regulation. The impact of pH-regulated and OFE modification on the structure, emulsification properties, and CEO release behavior of WPF-OFE was systematically examined. Fourier transform infrared spectroscopy (FTIR) and molecular docking analyses revealed that OFE provided the basis for the formation of the ordered structure, and the main interactions between WPF and OFE were hydrogen bonding and electrostatic interactions. Compared with WPF, OFE-modified WPF enhanced the adsorption at the oil-water interface. The WPF-OFE emulsions showed higher emulsification activity index and emulsion stability index, particularly at pH 6.0, where values reached 23.89 ± 0.48 m²/g and 46.81 ± 1.41 min, respectively. Notably, significant improvements (P < 0.05) in storage stability, UV stability, and thermal stability confirmed the efficacy of the WPF-OFE in enhancing emulsion stability. At pH 6.0, OFE effectively retarded CEO release by inhibiting WPF degradation in the gastric digestion and facilitated CEO release by reducing the spatial resistance of oil droplets during intestinal digestion, ultimately achieving high bioavailability of CEO.

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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.