Study on Configuration Design and Numerical Simulation of Twin-Screw Extruder Cooling Die Based on Pea Protein Isolate Flow Properties.

Miao Yang, Xun Zhang, Min Wu, Tianqi Zhang, Fanglei Zou, Shuqi Yang

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Article in Foods (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Miao YangCollege of Engineering, China Agricultural University, Beijing 100083, China.

Xun ZhangCollege of Engineering, China Agricultural University, Beijing 100083, China.

Min WuCollege of Engineering, China Agricultural University, Beijing 100083, China.ORCID 0000-0003-0283-6218

Tianqi ZhangCollege of Engineering, China Agricultural University, Beijing 100083, China.

Fanglei ZouCollege of Engineering, China Agricultural University, Beijing 100083, China.ORCID 0009-0007-0442-2752

Shuqi YangCollege of Engineering, China Agricultural University, Beijing 100083, China.

Funding

National Natural Science Foundation of China 32171912Natural Science Foundation of Beijing Municipality 6232018

6 · The paper itself

Abstract

This study developed an optimized cooling die configuration to improve the fibrous structure and texture of protein extrudates. Six designs, combining three cross-sectional shapes and two flow channel layouts, were evaluated through numerical simulations based on the physical properties of pea protein isolate (PPI) and extrusion parameters. The results show that PPI exhibits pronounced shear-thinning behavior, with viscosity decreasing by more than 85% as the temperature increases from 35 °C to 135 °C. Among all designs, the rectangular outlet with a serpentine cooling channel performed best, showing a center-to-wall temperature difference of 12.4 °C compared with 7.8 °C for the circular die, a 35% higher heat transfer coefficient, a wall-to-center viscosity ratio of 7.4 compared with 4.9 for the square die and 3.7 for the circular die, and a maximum wall shear rate of 3.42 s

Indexed as

configuration designcooling dienumerical simulationpea protein isolatetwin-screw extruder

Identifiers

PMID40941253

DOI10.3390/foods14173137

PMCPMC12427867

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.