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Helmick H, Tonner T, Hauersperger D, Ettestad S, Hartanto C, Okos M, Liceaga A, Bhunia AK, Kokini JL. Physicochemical characterization of changes in pea protein as the result of cold extrusion. Food Chem 2023; 423:136240. [PMID: 37163915 DOI: 10.1016/j.foodchem.2023.136240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 05/12/2023]
Abstract
Pea protein is a popular plant-based protein for mimicking textures in meat and dairy analogues which are more sustainable than their animal-based counterparts. However, precise mechanisms for generating specific textures through different processing methods are still being evaluated. This work utilizes a novel low-temperature extrusion process to selectively alter the chemical structure of pea protein. Changes in secondary structure, surface hydrophobicity, electrostatic interactions, and disulfide bonding are characterized through FTIR, ANS- probes, zeta potential, and SDS-PAGE. Extrudates are further characterized using texture parameter analysis. It was found that a linear combination of physicochemical data, generated with multiple linear regression modelling, led to reasonable estimates of the specific mechanical energy and textural properties. This work offers a new method of reactive extrusion to selectively modify interactions in pea protein using low temperature extrusion, and applications may include fatty textures, since the extrudates are found to be largely stabilized through hydrophobic interactions evaluated with surface hydrophobicity measurements.
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Affiliation(s)
- Harrison Helmick
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States
| | - Troy Tonner
- Department of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette, IN 47907, United States
| | - Daniel Hauersperger
- Department of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette, IN 47907, United States
| | - Sarah Ettestad
- Department of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette, IN 47907, United States
| | - Christabel Hartanto
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States
| | - Martin Okos
- Department of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette, IN 47907, United States
| | - Andrea Liceaga
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States
| | - Arun K Bhunia
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States
| | - Jozef L Kokini
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States.
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Helmick H, Hartanto C, Ettestad S, Liceaga A, Bhunia AK, Kokini JL. Quantitative structure-property relationships of thermoset pea protein gels with ethanol, shear, and sub-zero temperature pretreatments. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Helmick H, Hartanto C, Bhunia A, Liceaga A, Kokini JL. Validation of Bioinformatic Modeling for the Zeta Potential of Vicilin, Legumin, and Commercial Pea Protein Isolate. FOOD BIOPHYS 2021. [DOI: 10.1007/s11483-021-09686-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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