Nutr Res Pract.  2024 Apr;18(2):223-238. 10.4162/nrp.2024.18.2.223.

Development of cooking method for senior-friendly food using fruits suitable for older adults with masticatory dysfunction

• Kim D
• Ryu J
• Lim HS
• Kwon YS

• KMID: 2558500
• DOI: http://doi.org/10.4162/nrp.2024.18.2.223

Abstract

BACKGROUND/OBJECTIVES
The purpose of this study was to establish a fruit-cooking method suitable for older adults with masticatory dysfunction.
MATERIALS/METHODS
Five types of fruits were selected to make fruit jelly and puree: apple, sweet persimmon, mandarin, Korean melon, and watermelon. Recipes were selected based on the Korean Industrial Standard (KS) for senior-friendly foods (KS H 4897), which classifies foods into 3 levels (L1−L3) based on their hardness and viscosity.
RESULTS
In South Korea, senior-friendly foods are classified into 3 stages based on their hardness. Stage 1 is for foods that are able to eat with teeth (hardness greater than 50,000 N and less than 500,000 N), Stage 2 is for foods that are able to eat with gums (hardness greater than 20,000 N and less than 50,000 N), and Stage 3 is for foods that are able to eat with the tongue (hardness less than 20,000 N). As a result of measuring the hardness by varying the shape of the fruit, it was found that nearly all fruits could be eaten fresh by chewing with the teeth (L1) but did not meet the KS for mastication using the gums (L2) or tongue (L3), so the cooking method was selected as fruit jelly and fruit puree. Only sweet persimmon, which had a hardness of 61,624–496,393 N, was not suitable for consumption in fresh fruit, unprocessed form. Based on their hardness measurements, fruit jellies (27,869 to 36,343 N) and fruit purees (315 to 1,156 N) met the L2 and L3 requirements, respectively. The viscosity results of all fruit purees met the L3 requirement.
CONCLUSION
These results offer a simple cooking method to prepare texture-modified fruits suitable for safe consumption by older adults living with masticatory difficulties in general households and nursing facilities.

Keyword

Aged; mastication; fruit; chewing; hardness tests

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