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Non-Volatile Compounds Involved in Bitterness and Astringency of Pulses: A Review
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Non-Volatile Compounds Involved in Bitterness and Astringency of Pulses: A Review
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Non-Volatile Compounds Involved in Bitterness and Astringency of Pulses: A Review
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Journal Article
Non-Volatile Compounds Involved in Bitterness and Astringency of Pulses: A Review
2023
Overview
Despite the many advantages of pulses, they are characterised by off-flavours that limit their consumption. Off-notes, bitterness and astringency contribute to negative perceptions of pulses. Several hypotheses have assumed that non-volatile compounds, including saponins, phenolic compounds, and alkaloids, are responsible for pulse bitterness and astringency. This review aims to provide an overview highlighting the non-volatile compounds identified in pulses and their bitter and/or astringent characteristics to suggest their potential involvement in pulse off-flavours. Sensorial analyses are mainly used to describe the bitterness and astringency of molecules. However, in vitro cellular assays have shown the activation of bitter taste receptors by many phenolic compounds, suggesting their potential involvement in pulse bitterness. A better knowledge of the non-volatile compounds involved in the off-flavours should enable the creation of efficient strategies to limit their impact on overall perception and increase consumer acceptability.
