Microencapsulation of Acer truncatum seed oil using chickpea protein isolate–low/high-methoxy citrus pectin complex coacervates: Preparation, stability analysis, and application in milk

IF 11 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Hydrocolloids Pub Date : 2025-03-19 DOI:10.1016/j.foodhyd.2025.111368

Mo Chen , Bo Zhang , Min Wang , Jin-yue Sun , Mu-xuan Wang , Meng-qi Zhang , Ying-ying Chen , Qi-dong Ren , Shu-tao Sun , Mohamed A. Farag , Xu Guo , Chao Liu

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引用次数: 0

Abstract

Acer truncatum seed oil (ATSO) is a promising novel food resource. However, ATSO's low solubility in water, poor stability, and low oral bioavailability limit its application in the food industry. Herein, ATSO was microencapsulated using complex coacervates formed by food-derived bio-macromolecular chickpea protein isolate (CPI), low-methoxy citrus pectin (LMCP), and high-methoxy citrus pectin (HMCP). The CPI-LMCP and CPI-HMCP complex coacervates were prepared and characterized. The selected protein-to-pectin ratio was 6:1 at pH 4.1. Characterization by Fourier transform infrared spectroscopy and scanning electron microscopy confirmed that the formation of CPI-LMCP and CPI-HMCP complex coacervates was driven by electrostatic interactions and exhibited a gel network structure. The successful encapsulation of ATSO in CPI-LMCP or CPI-HMCP complex coacervates was confirmed using inverted fluorescence microscopy characterization. The encapsulation efficiency of CPI-HMCP-ATSO microcapsules (80.22 % ± 2.16 %) was higher than that of CPI-LMCP-ATSO microcapsules (76.25 % ± 3.46 %). In addition, both microcapsules maintained their structural integrity in simulated food matrices with high salt and sucrose levels. The encapsulated ATSO exhibited higher thermal and oxidative stability than free oil. In vitro, gastrointestinal digestion studies revealed that CPI-HMCP-ATSO microcapsules significantly stabilized ATSO in simulated gastric fluid and achieved controlled release in simulated intestinal fluid. Additionally, ATSO microcapsules were incorporated into milk for the first time. Milk supplemented with ATSO microcapsules had a better sensory profile compared to the control formulation. Overall, the successful preparation of ATSO microcapsules promoted the generation of well-characterized nervonic acid–rich dairy products.

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来源期刊

Food Hydrocolloids 工程技术-食品科技

CiteScore

19.90

自引率

14.00%

发文量

871

审稿时长

37 days

期刊介绍： Food Hydrocolloids publishes original and innovative research focused on the characterization, functional properties, and applications of hydrocolloid materials used in food products. These hydrocolloids, defined as polysaccharides and proteins of commercial importance, are added to control aspects such as texture, stability, rheology, and sensory properties. The research's primary emphasis should be on the hydrocolloids themselves, with thorough descriptions of their source, nature, and physicochemical characteristics. Manuscripts are expected to clearly outline specific aims and objectives, include a fundamental discussion of research findings at the molecular level, and address the significance of the results. Studies on hydrocolloids in complex formulations should concentrate on their overall properties and mechanisms of action, while simple formulation development studies may not be considered for publication. The main areas of interest are: -Chemical and physicochemical characterisation Thermal properties including glass transitions and conformational changes- Rheological properties including viscosity, viscoelastic properties and gelation behaviour- The influence on organoleptic properties- Interfacial properties including stabilisation of dispersions, emulsions and foams- Film forming properties with application to edible films and active packaging- Encapsulation and controlled release of active compounds- The influence on health including their role as dietary fibre- Manipulation of hydrocolloid structure and functionality through chemical, biochemical and physical processes- New hydrocolloids and hydrocolloid sources of commercial potential. The Journal also publishes Review articles that provide an overview of the latest developments in topics of specific interest to researchers in this field of activity.