High-efficiency and eco-friendly extraction of brown algal polyphenols using an optimized alcohol-salt aqueous two-phase system

IF 3.5 2区农林科学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Food and Bioproducts Processing Pub Date : 2025-01-01 DOI:10.1016/j.fbp.2024.12.011

Hongyu Gan , Yiruo Wang , Qifeng Wei , Xiulian Ren

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引用次数: 0

Abstract

This study presents the development and optimization of an alcohol-salt aqueous two-phase system to extract and purify brown algal polyphenols from Laminaria japonica efficiently. A systematic investigation was conducted on the effects of various process parameters, including the type and concentration of alcohol and salt, temperature, and pH value, on extraction efficiency. Under optimal conditions, using 20 % ethanol and 22 % ammonium sulfate at 20 ℃ and a pH of 4, the extraction rate of polyphenols exceeded 80 % after three purification cycles, significantly enhancing antioxidant activity. Compared to traditional methods such as water-insoluble organic solvent liquid-liquid extraction and macroporous resin adsorption, the alcohol-salt aqueous two-phase system demonstrated superior performance, offering higher extraction efficiency and environmental sustainability. The recyclability of alcohol and salt further improved cost-effectiveness and reduced environmental impact. This study highlights the potential scalability and sustainability of the alcohol-salt aqueous two-phase system for producing high-purity natural antioxidants.

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来源期刊

Food and Bioproducts Processing 工程技术-工程：化工

CiteScore

9.70

自引率

4.30%

发文量

115

审稿时长

24 days

期刊介绍： Official Journal of the European Federation of Chemical Engineering: Part C FBP aims to be the principal international journal for publication of high quality, original papers in the branches of engineering and science dedicated to the safe processing of biological products. It is the only journal to exploit the synergy between biotechnology, bioprocessing and food engineering. Papers showing how research results can be used in engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in equipment or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of food and bioproducts processing. The journal has a strong emphasis on the interface between engineering and food or bioproducts. Papers that are not likely to be published are those: • Primarily concerned with food formulation • That use experimental design techniques to obtain response surfaces but gain little insight from them • That are empirical and ignore established mechanistic models, e.g., empirical drying curves • That are primarily concerned about sensory evaluation and colour • Concern the extraction, encapsulation and/or antioxidant activity of a specific biological material without providing insight that could be applied to a similar but different material, • Containing only chemical analyses of biological materials.