Sweetness enhancement technology using volatile compound mixtures

Overview

This research presents a novel sweetness enhancement technology based on approximately 100 volatile compounds that amplify the perceived sweetness of sugars and artificial sweeteners. The core innovation lies in combining multiple sweetness-enhancing volatiles so that their individual flavors cancel each other out, similar to how smells suppress one another in mixtures. This results in a sweetener system that delivers enhanced sweetness without introducing unwanted flavor notes. Because the volatiles can be selected from GRAS (Generally Recognized as Safe) ingredients and used at very low concentrations, the approach offers a safe method for sweetening foods and beverages.

Technical specifications

• Sweetness-enhancing volatiles: A library of approximately 100 volatile compounds that have been shown to enhance perceived sweetness of sugars or artificial sweeteners
• Flavor cancellation principle: When multiple volatiles are combined and perceived as flavors (in-mouth rather than sniffed), their individual flavor intensities suppress one another, with overall flavor intensity declining below that of individual components
• Low concentration application: Both volatiles and sweeteners can be used at very low concentrations while still achieving meaningful sweetness enhancement
• GRAS-compliant ingredients: Volatiles can be selected from GRAS-approved substances, supporting food and beverage safety requirements
• Novel screening method: A simple, inexpensive technique for identifying sweetness-enhancing volatiles: plug nose, place sweetener and volatile in mouth, rate sweetness, open nose, and rate again. An increase in sweetness when the nose opens indicates the volatile enhances sweet perception
• Psychophysical validation: Uses the Global Sensory Intensity Scale methodology for valid cross-subject comparisons of perceived sweetness

Technology readiness level

This technology is at an early-to-mid stage of development. Pilot data has demonstrated sweetness enhancement by adding appropriate volatiles to small amounts of sweetener. Laboratory work in the Sobel lab has shown cancellation of volatile smells in mixtures, and pilot data indicates similar cancellation occurs when volatiles are perceived as flavors. Additionally, pilot data shows that the perceived flavor intensity of 55 volatiles is lower than some of their individual components. Future validation efforts will systematically demonstrate flavor suppression among volatiles, determine the relationship between the number of volatiles and degree of suppression, apply psychophysical methodology to identify individual differences, and continue expanding the library of sweetness-enhancing volatiles.