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Jiang, Jung, and Lee: Correlations Among Threshold and Assessment for Salty Taste and High-salt Dietary Behavior by Age
Research Article

Korean Journal of Community Nutrition 2016; 21(1): 75-83.

Published online: 29 February 2016

DOI: https://doi.org/10.5720/kjcn.2016.21.1.75

Correlations Among Threshold and Assessment for Salty Taste and High-salt Dietary Behavior by Age

Lin Jiang, Yun-Young Jung, Yeon-Kyung Lee

Department of Food Science and Nutrition, Kyungpook National University, Daegu, Korea.

Corresponding author: Yeon-Kyung Lee. Department of Food Science and Nutrition, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, Korea. Tel: (053) 950-6234, Fax: (053) 950-6229, yklee@knu.ac.kr

Received 11 February 2016       Revised 18 February 2016       Accepted 25 February 2016

Copyright © 2016 The Korean Society of Community Nutrition

(open-access):

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives

The purpose of this study was to analyze correlation thresholds and assessment for salty taste and high-salt dietary behaviors by age.

Methods

A total of 524 subjects including 100 each of elementary school students, middle school students, college students, and elderly as well as 124 adults were surveyed for detection and recognition thresholds, salty taste assessments, and high-salt dietary behaviors.

Results

Elementary students had a lower detection threshold (p<0.05) and recognition threshold (p<0.01) than did the other groups. Salty taste assessments were lowest among elementary students, followed by middle school students, while college students, adults, and elderly had higher assessment score (p<0.001). Elementary students had significantly lower scores for high-salt dietary behavior than did middle school students, college students, adults and elderly (p<0.001). Middle school students had higher scores for high-salt dietary behavior than did elementary school students and elderly (p<0.001) but no meaningful difference was found in dietary behavior scores between college students, adults, and elderly. There were positive correlations between high-salt dietary behavior and detection thresholds (p<0.001), recognition thresholds (p<0.001), and salty taste assessment (p<0.001). High-salt dietary behavior was more positively correlated with salty taste assessment than detection and recognition thresholds for salty taste.

Conclusions

This study suggested that salty taste assessments were positively associated with scores for the detection and recognition thresholds and high-salt dietary behavior.

Keywords: detection threshold, recognition threshold, salty taste assessment, high-salt dietary behavior

Figures and Tables

Table 1

Comparison of the detection threshold, recognition threshold and salt taste assessment by age groups

kjcn-21-75-i001

1) Mean±SD

2) Total score of salty taste assessment is 5.

*: p < 0.05, **: p < 0.01, ***: p < 0.001

Values with the different small superscript are significantly different among subjects by Duncan's multiple range test.

Table 2

Comparison of the detection threshold, recognition threshold and salt taste assessment by smoking and drug use

kjcn-21-75-i002

1) Mean±SD

2) Total score of salty taste assessment is 5.

Table 3

Comparison of high-salt dietary behavior by age groups

kjcn-21-75-i003

1) Mean±SD

*: p < 0.05, **: p < 0.01, ***: p < 0.001

abc: Values with the different small superscript are significantly different among subjects by Duncan's multiple range test. Total score of high-salt dietary behavior is 50.

Table 4

Comparison of the detection threshold, recognition threshold, and dietary behaviors by salty taste assessment

kjcn-21-75-i004

1) Mean±SD

**: p < 0.01, ***: p < 0.001

ab: Values with the different small superscript are significantly different among subjects by Duncan's multiple range test.

Total scores of dietary attitudes and dietary behaviors were 50.

Table 5

Comparison of the detection threshold, recognition threshold, high-salt dietary attitude and dietary behaviors by taste preference

kjcn-21-75-i005

1) Mean±SD

**: p < 0.01, ***: p < 0.001

abc: Values with the different small superscript are significantly different among subjects by Duncan's multiple range test.

The score of detection threshold and recognition threshold 1: 0.0175%, 2: 0.0233%, 3: 0.0350%, 4: 0.0467%, 5: 0.0701%, 6: 0.0933%, 7; 0.1403%, 8: 0.1987%, 9: 0.2631%, 10: 0.351%

Total score of high-salt dietary behavior is 50.

Table 6

Correlation coefficients by between high-salt behavior, and detection threshold, recognition threshold and salt taste assessment

kjcn-21-75-i006

*: p < 0.05, **: p < 0.01, ***: p < 0.001

Acknowledgments

This research was supported by a grant (1462MFDS136) from Ministry of Food and Drug Safety, 2011 and Kyungpook National Research Fund, 2012.

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ORCID iDs

Yeon-Kyung Lee
https://orcid.org/http://orcid.org/0000-0002-5975-3969

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