The present invention in a first aspect relates to taste improvement of foodstuffs, beverages, pharmaceutics, tobacco products and oral care products, using a substance according to formula (I), or edible salts thereof: formula (I) : R1-CR2(OR3)-CO-X. It was found that substances represented by formula (I) are capable of modifying and complementing, the sensory impact of taste imparting substances. Thus, the present taste improving substances are advantageously applied in flavour compositions, foodstuffs, pharmaceutics, tobacco products and oral care products. Typical examples of taste improving substances according to the present invention include N-lactoyI GMP, N-lactoyl AMP, N-lactoyI CMP, N-lactoyI IMP, N-gluconyl GMP, N-gluconyl AMP, N-gluconyl CMP, N-gluconly IMP, O-lactoyl-GMP, O-lactoyl AMP, O-lactoyl CMP, O-lactoyl IMP, O-gluconyl GMP, O-gluconyl AMP, O-gluconyl CMP and O-gluconyl IMP and mixtures thereof.
