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Updated: Jan 5, 2026

Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans

Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans

Published on: June 4, 2014

An improved method for examining fat taste.

Gregory Smutzer¹, Jesus J Alvarado², D'Nea Z Haggard²

¹Laboratory of Molecular Psychophysics, Department of Biology, Temple University, 1900 N. 12th Street, Philadelphia, PA, 19122, USA. smutzerg@temple.edu.

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|October 21, 2019

Summary

This summary is machine-generated.

Researchers developed edible strips to deliver hydrophobic fat taste stimuli, enabling detection of fatty acids like linoleic acid by most individuals. This method aids in studying human fat taste perception and its health implications.

Keywords:

Edible strips Fat taste Linoleic acid Stearic acid Xanthan gum

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Last Updated: Jan 5, 2026

Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans

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Published on: June 4, 2014

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Published on: February 11, 2021

Area of Science:

Sensory Science
Food Chemistry
Human Physiology

Background:

Detecting fat taste in humans is challenging due to the low water solubility of hydrophobic stimuli.
Existing methods for administering fat taste stimuli are often inefficient and difficult to prepare.

Purpose of the Study:

To develop an improved method for preparing and delivering hydrophobic stimuli for human fat taste detection.
To assess the efficacy of edible strips in delivering fatty acids for psychophysical studies.

Main Methods:

An improved protocol was developed for creating thin edible strips containing 18-carbon fatty acids.
The method involves using xanthan gum as a dispersing agent and high drying temperatures.
Edible strips were prepared within 4-5 hours, exhibiting flexibility and even dispersion of fatty acids.

Main Results:

Psychophysical studies using edible strips showed nearly all participants detected linoleic acid.
Stearic acid was perceived by fewer individuals, with responses mostly in the barely detectable range.
Fatty acids elicited fatty/oily or bitter taste perceptions, leading to the development of edible circles for tongue testing.

Conclusions:

The novel edible strip delivery method is effective for studying human fat taste perception.
This method can help characterize variations in fat taste perception among individuals.
It is expected to contribute to understanding the role of fat taste in human health.