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Updated: Jul 27, 2025

AirID-Based Proximity Labeling for Protein-Protein Interaction in Plants
Published on: September 16, 2022
Flavor-protein interactions for four plant proteins with ketones and esters
Silvia J E Snel1,2, Mirela Pascu3, Igor Bodnár3
1Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland, CH-1950 Sion, Switzerland.
Abstract:
The interaction between flavors and proteins results in a reduced headspace concentration of the flavor, affecting flavor perception. We analyzed the retention of a series of esters and ketones with different chain lengths (C4, C6, C8, and C10) by protein isolates of yellow pea, soy, fava bean, and chickpea, with whey as a reference. An increase in protein concentration led to a decrease in flavor compound in the headspace as measured with atmospheric pressure chemical ionization time-of-flight mass spectroscopy (APCI-TOF-MS). Flavor retention was described with a flavor-partitioning model. It was found that flavor retention could be well predicted with the octanol-water partitioning coefficient and by fitting the hydrophobic interaction parameter. Hydrophobic interactions were highest for chickpea, followed by pea, fava bean, whey, and soy. However, the obtained predictive model was less appropriate for methyl decanoate, possibly due to its solubility. The obtained models and fitted parameters are relevant when designing flavored products with high protein concentrations.
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