The potential use of texturized pea protein in meat analogues was investigated by comparing the effects of fermentation on pea and myofibrillar pork proteins in a model system including additives, microbial starters, and proteases. Model fermentation was controlled for 15 days by a pH decrease and microbial count and free amino acid increase. Besides, volatile production and sensory properties were evaluated at the end of fermentation. Protein type affected free amino acid generation and volatile profile. Models supplemented with proteases showed an increase in amino-acid-derived compounds (branched aldehydes and alcohols) and fruity odor notes. During fermentation, protease addition significantly reduced the production of linear aldehydes (pentanal, hexanal, and octanal) in vegetal models, while pyrazine compounds were not affected. This changes in the volatile profile reduced the legume beany odor but increased the perception of toasted cereal-like notes generated by the texturization process.
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http://dx.doi.org/10.1021/acs.jafc.3c08432 | DOI Listing |
Gels
January 2025
Faculty of Food Engineering, Stefan cel Mare University of Suceava, 720229 Suceava, Romania.
The amount of saturated fat in cookies can be reduced by replacing margarine with oleogel, resulting in healthier products. In this study, the rheological and textural profile of cookies formulated with oleogel as the main margarine substitute was evaluated. Hemp seed vegetable oil was oleogelized with four types of waxes: beeswax (BW), carnauba wax (CW), candelilla wax (DW), rice bran wax (RW), and three oleogeling agents, sitosterol (S), pea protein (PP), and xanthan gum (XG), respectively.
View Article and Find Full Text PDFGels
December 2024
Department of Food Science and Technology, The Ohio State University, 2015 Fyffe Rd., Columbus, OH 43210, USA.
The effects of CaCl addition before (PreCa) or after (PostCa) heating pea protein-pectin dispersions on the formed gel's rheological and microstructural properties were investigated. Isothermal titration calorimetry (ITC) revealed that CaCl bound both pea proteins and pectins through a spontaneous exothermic reaction and pectin exhibited a stronger binding affinity to CaCl. In PreCa gels, low levels of CaCl (5 and 10 mM) increased the gel elasticity (increase in the storage modulus, G') and their microstructural compactness.
View Article and Find Full Text PDFFood Chem X
January 2025
College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, 163319, China.
The objective of this study was to substitute partially fat with pea protein isolate (PP)/rutin (Ru) complexes to produce a healthy and stable low-fat whipped cream. Ru enhanced the foam properties of PP. The Ru binding equivalent was the best at a mass ratio of PP/Ru of 64:4, the PP/Ru complexes particle size was the smallest.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Agricultural Biotechnology, Seoul National University, 1 Gwanakro, Gwanakgu, Seoul 08826, Republic of Korea; Research Institute for Agriculture and Life Sciences, Seoul National University, 1 Gwanakro, Gwanakgu, Seoul 08826, Republic of Korea; Center for Food and Bioconvergence, Seoul National University, 1 Gwanakro, Gwanakgu, Seoul 08826, Republic of Korea. Electronic address:
This study investigated the effects of oil addition on the physical and chemical properties of high-moisture texturized proteins (HMTPs), focusing on soy protein isolate (SPI) and pea protein isolate (PPI). Rheological analysis revealed contrasting behaviors: SPI exhibited decreased rheological parameters at low oil concentrations (1, 3 %), followed by a significant increase at higher concentrations (5, 10 %), whereas PPI showed a consistent decline across all oil concentrations. The superior emulsifying and gelling abilities of SPI resulted in stronger protein-protein interactions and greater hardness at higher oil concentrations.
View Article and Find Full Text PDFJ Food Sci
January 2025
Department of Food Science, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Protein bar hardening negatively impacts shelf life, quality, and consumer acceptance. Although oxidation is known to negatively affect the flavor and texture of foods, the specific roles of lipid and protein oxidation in bar hardening have not been thoroughly investigated. Furthermore, most research has concentrated on dairy proteins, with a notable lack of studies addressing the hardening of plant-based protein bars.
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