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榛子蛋白与海藻酸钠复合凝聚层：一种用于包封疏水性多酚槲皮素的有效工具。

Hazelnut Protein and Sodium Alginate Complex Coacervates: An Effective Tool for the Encapsulation of the Hydrophobic Polyphenol Quercetin.

作者信息

Adrar Nabil, Ceylan Fatma Duygu, Capanoglu Esra

机构信息

Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, 34469 Istanbul, Turkey.

出版信息

ACS Omega. 2024 Aug 20;9(35):37243-37252. doi: 10.1021/acsomega.4c04859. eCollection 2024 Sep 3.

DOI:10.1021/acsomega.4c04859
PMID:39246501
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11375722/
Abstract

For valorization purposes of hazelnut byproducts, complex coacervation of hazelnut protein isolate (HPI) with sodium alginate (NaAlg) was investigated by turbidimetric analysis and zeta potential determination as a function of pH and protein/alginate mixing ratio. HPI-NaAlg complex coacervates were used as an encapsulating material of quercetin (QE) at different concentrations. The optimal pH and mixing ratio resulting in the highest turbidity and neutral charge were 3.5 and 6:1, respectively. The coacervation yield was 74.9% in empty capsules and up to 90.0% in the presence of QE. Under optimal conditions, HPI-NaAlg complex coacervates achieved an encapsulation efficiency higher than 99% in all coacervate/QE formulations. Fourier transform infrared spectroscopy (FTIR) results revealed the occurrence of electrostatic interactions between different functional groups within the ternary complex in addition to hydrogen and hydrophobic interactions between QE and HPI. HPI-NaAlg complex coacervates can serve as an alternative matrix for the microencapsulation of bioactive ingredients with low water solubility in food formulations, which adds an additional valorization of hazelnut byproducts.

摘要

为了实现榛子副产品的增值利用，通过比浊分析和zeta电位测定，研究了榛子分离蛋白（HPI）与海藻酸钠（NaAlg）在不同pH值和蛋白质/海藻酸盐混合比例下的复凝聚作用。HPI-NaAlg复合凝聚层被用作不同浓度槲皮素（QE）的包封材料。导致最高浊度和中性电荷的最佳pH值和混合比例分别为3.5和6:1。空胶囊中的凝聚产率为74.9%，在存在QE的情况下高达90.0%。在最佳条件下，HPI-NaAlg复合凝聚层在所有凝聚层/QE配方中的包封效率均高于99%。傅里叶变换红外光谱（FTIR）结果表明，除了QE与HPI之间的氢键和疏水相互作用外，三元复合物中不同官能团之间还存在静电相互作用。HPI-NaAlg复合凝聚层可作为食品配方中低水溶性生物活性成分微胶囊化的替代基质，这为榛子副产品增加了额外的价值。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/0d80e507ea26/ao4c04859_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/29a7cee4d7b6/ao4c04859_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/8b12d45a69f9/ao4c04859_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/c99bb7537af7/ao4c04859_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/0d80e507ea26/ao4c04859_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/29a7cee4d7b6/ao4c04859_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/8b12d45a69f9/ao4c04859_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/c99bb7537af7/ao4c04859_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4006/11375722/0d80e507ea26/ao4c04859_0004.jpg

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本文引用的文献

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