A process for extracting pea protein isolate

By employing sodium hexametaphosphate chelating agent, multi-enzyme stepwise hydrolysis, nanocellulose crystal self-assembly, and plasma activation, the problems of low extraction rate and purity of pea protein isolate were solved, improving the product's solubility, emulsification, and dietary fiber solubility, thus achieving efficient resource utilization and product stability.

CN122397833APending Publication Date: 2026-07-17

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing pea protein isolate extraction processes struggle to effectively break down the complex interactions between proteins and cell wall polysaccharides, resulting in large fluctuations in protein extraction rates, difficulty in consistently achieving high purity levels, and ineffective modification of byproducts, leading to significant resource waste, inconsistent product performance, and an inability to meet the requirements of high-end applications.

Method used

Sodium hexametaphosphate chelating agent is used to shield ion bridging, combined with multi-enzyme stepwise hydrolysis and high-pressure microfluidic induction of interfacial self-assembly between nanocellulose crystals and sodium caseinate, energy field activation and covalent cross-linking of glutamine transaminase are carried out using dielectric barrier discharge plasma, and finally the powder is dried by flash evaporation.

Benefits of technology

It significantly improves protein extraction rate and purity, enhances product solubility, emulsification, and the solubility and physiological adsorption activity of dietary fiber, ensuring product processing stability and uniformity, and possesses excellent industrial application value.

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Abstract

本发明涉及蛋白提取技术领域,具体为一种提取豌豆分离蛋白的工艺。本发明克服了现有豌豆纤维纯度低、功能特性差等技术问题,利用六偏磷酸钠屏蔽离子桥连实现蛋白与纤维高效剥离;通过多酶分步水解深度除杂;引入纳米纤维素晶与酪蛋白酸钠,结合高压微射流诱导界面自组装;利用介质阻挡放电等离子体进行能量活化,引入活性基团并诱导谷氨酰胺转胺酶共价交联,最后经闪蒸干燥成粉。最终实现了蛋白质的高效回收,提升了膳食纤维的可溶性膳食纤维占比、持水持油力及生理吸附活性,改善了加工稳定性,具有极高的工业应用价值。
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