• Korean Journal of Fisheries and Aquatic Sciences
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• v.54 no.3
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• pp.251-260
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• 2021

As the aging population of the world grows, senior-friendly foods are becoming increasingly popular. In this study, the quality characteristics of domestic commercial senior-friendly foods were investigated and compared to the standard specifications of the Food Code and KS H4897. Herein, 18 samples of domestic commercial senior-friendly foods were utilized to analyze their appearance, physical properties (hardness and viscosity), nutritional value (protein, vitamin, mineral and dietary fiber), digestion rate, and hygiene indicator bacteria. When compared to the hardness standards of the Food Code all 18 samples were found to be satisfactory; however, when compared to the nutritional standard (at least three types of nutrients must be above the minimum), only five products, HG-7, DW-1, PS-1, OH-1 and OH-2, were found to be satisfactory. In addition, when the 18 samples were compared to the Korean Industrial Standard (2020), all 18 products were found to be satisfactory for physical properties and hygiene standards; furthermore, all samples, excluding HB-2, were suitable for nutritional standards (at least one type of nutrient must be above the standard).

• Korean Journal of Fisheries and Aquatic Sciences
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• v.54 no.4
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• pp.532-542
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• 2021

The concern of senior-friendly foods has been increasing as the population of older in world grows at a rapid pace. This study was conducted to investigate general and nutrition characterization of domestic commercial senior-friendly foods (DC-SFF). The protein content of DC-SFF ranged from 1.1-14.6 g/100 g, which was 1.8-24.3% for male elderly people and 2.2-29.2% for female elderly people based on the daily recommended intake of protein. Total amino acid content of DC-SFF ranged from 1,038-14,539 mg/100 g. Salinity of DC-SFF ranged from not detected-1.9 g/100 g, which was 0.0-49.9% for elderly people based on the daily recommended intake of salinity. Mineral content of DC-SFF ranged from 11.0-414.4 mg/100 g calcium, 14.6-226.5 mg/100 g potassium, 1.9-30.4 mg/100 g magnesium and not detected-4.8 mg/100 g zinc. The fatty acid composition was mainly affected by main material and added oil.

• The Journal of the Korea Contents Association
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• v.22 no.2
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• pp.770-781
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• 2022

Korea's aging population is rapidly increasing, but there has been little research into senior-friendly foods. Therefore, this study aimed to provide basic data for the development of senior-friendly Home Meal Replacement(HMR) foods by conducting a survey among elderly and middle-aged persons highly likely to purchase senior-friendly foods in the near future. Study findings showed that the level of HMR purchase was higher among the middle-aged, many subjects preferred products requiring simple cooking, and a higher proportion of subjects purchased them offline. Five HMR selection attributes were identified, and dietary lifestyles were classified into four categories. Through a cluster analysis, 3 groups based on level of involvement were identified: high-level, mid-level, and low-level. Napping^® analysis showed that subjects classified food products into HMR and meal kits, and into products with a clear broth and products with a thicker broth. The study findings are expected to help suggest a differentiating approach in developing senior-friendly HMR foods.

• Food Science and Industry
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• v.53 no.4
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• pp.435-443
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• 2020

Korea has entered into an aged-society in 2018. If this trend continues to increase, it is expected that a super-aging society will take place by 2026. Therefore, Korea is placed in the situation of becoming the world's fastest aging nation as it becomes a super-aging society from an aged-society in twenty-six years. In order to provide an effective supply of nutrition for the socially weak, Japan developed a variety of foods with food texture improvements. Germany improved accessibility for meal service development. Senior-friendly food is a softened food or a highly concentrated drink, which is considered a texture-modified food, for the elderly with eating disorders to digest food more easily by making food particles smaller. Varying food processing techniques such as freeze-thawing enzyme impregnation, high-pressure processing, super-heated steam processing, 3D food print, and others used to produce texture-modified foods.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.56 no.6
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• pp.773-780
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• 2023

This study was conducted to prepare curry potato pancakes (CPP), curry fish balls (CFB) and steamed eggs (SE) using Pacific saury Cololabis saira as senior-friendly seafood and to determine the physical property stages and quality characteristics of the prepared food. Escherichia coli concentrations were undetected in all the products, which is considered an acceptable limit for senior-friendly foods. On applying the physical properties standards according to the Korean Industrial Standard, saury CPP, saury CFB, and saury SE were classified as the 1^st, 2^nd, and the 3^rd stages as senior-friendly seafood, respectively. Regarding the nutritional properties per 100 g of the three types of senior-friendly seafood using saury according to the Korean food code, CPP had three types of nutrients (protein, riboflavin, and niacin), whereas CFB and SE had four (protein, riboflavin, niacin and calcium) and six (protein, vitamin D, vitamin C, riboflavin, niacin, and calcium) types of nutrients, respectively.

• Nutrition Research and Practice
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• v.18 no.2
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• pp.223-238
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• 2024

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.

• Korean journal of food and cookery science
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• v.29 no.3
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• pp.257-265
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• 2013

The purpose of this study was to understand the characteristics of senior consumers' food-related lifestyle and to investigate their demand for menu development of senior' friendly food products. An one-to-one survey method was used for data collection, and the survey was conducted with 490 senior participants who are over 55 years-old living in Seoul and Kyunggi area. The main results of this study were as follows: Most participants usually spend from 60,000 to 150,000won on food a month, and the female participants played a decisive role on food purchasing and preparation. They preferred home meal for their three regular meals to bread, convenience food, or eating-out. For menu development of senior-friendly food products, the demand for food products using moist-heat cooking method was higher than those using dry-heat cooking method. Also, the respondents did not like strong taste such as salty, spicy, or bitterness in senior-friendly foods, and wanted to have a variety of noodle, kimchi, meat, seafood meals.

• Journal of the East Asian Society of Dietary Life
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• v.27 no.2
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• pp.124-136
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• 2017

This study was performed to investigate the perception and preferences regarding commercial universal design foods (UDF) made with different ingredients. A one-to-one interview was used for data collection and the survey was conducted on 41 elderly people (over age 65; males: 11, females: 30) attending senior welfare centers in Seoul. Twelve UDF samples were collected, which were widely sold in Japan. Majority of respondents prepared meals (53.7%) and ate alone (43.9%), respectively. The preferred cooking level of elderly food was "ready to eat (RTE)" (43.9%) or "ready to heat (RTH)" (43.9%) rather than fresh cut product. In most, the elderly had no problem with chewing-action (90.2%). Generally, food ingredients such as grain, meat, seafood and fruits showed higher preference than vegetable and nuts. Among 12 UDF samples, pumpkin gratin (4.17) and peach flavored jelly (4.27) showed higher preferences among tested samples on a 5-point facial hedonic scale. There were no significant differences in overall preferences of all samples by difficulty in terms of chewing and swallowing of respondents. Demi-glace sauce hamburger and pot sukiyaki were more preferred as age increased (p<0.05).

• Korean Journal of Fisheries and Aquatic Sciences
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• v.54 no.5
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• pp.703-713
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• 2021

Mackerel Scomber japonicus is an excellent source of vitamins (A, D and B₁₂), omega-3 fatty acids, dietary protein and minerals. This study was conducted to prepare mackerel-based processed seafood products such as grilled product with super-heated (GM), tang (TM) and salad with sweet potato (SSM) using mackerel as senior-friendly seafoods and to examine their quality characteristics. The hardness of GM, TM and SSM were 240.3×1.0³, 21.7×1.0³ and 7.4×1.0³ N/m², respectively. The viscosity of SSM was 25,450 m·Pas. The nutritional content of mackerel-processed products was within the senior-friendly standard specifications for protein, vitamin C, vitamin B₂ (riboflavin) and vitamin B₃ (niacin) ing GM, protein, vitamin B₃ and calcium for TM, and protein, vitamin D, vitamin B₂ and vitamin B₃ in SSM. All the mackerel-processed products were safe as senior-friendly seafoods, since digestibility rates were 81.5% for GM, 87.9% for TM and 93.5% for SSM. The physical, nutritional and the sanitation results indicated that senior-friendly seafoods classified of the mackerel-processed products was step 1 for GM, step 2 for TM and step 3 for SSM according to the Korean Food Code and Korean Indusrty Standards.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.55 no.2
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• pp.111-120
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• 2022

This study was conducted to prepare braised product with soy sauce (BP), rose gratin (RG) and white mousse (WM) using Japanese Spanish mackerel Scombermorus niphonius as senior-friendly seafoods with different physical and nutritional properties and to examine their quality characteristics. The hardness of BP, RG and WM were 428.0×10³, 46.9×10³ and 16.0×10³ N/m², respectively. The nutritional values of BP, RG and WM are 17.8, 9.1 and 18.5 g, respectively, for protein; 11.86, 23.32 and 13.35 ㎍ RAE, respectively, for vitamin A; 1.27, 0.49 and 0.17 ㎍, respectively, for vitamin D; 45.21, 12.79, and 35.54 mg, respectively, for vitamin C; 0.17, 0.13 and 0.23 mg, respectively, for riboflavin; 4.28, 2.94 and 3.65 mgNE, respectively, for niacin; 19.6, 104.0 and 48.1 mg, respectively, for Ca; 441.6, 271.1 and 250.1 mg, respectively, for K; 0.20, 0.80 mg and undetection, respectively, for dietary fiber. Escherichia coli was undetected in all the products. These results indicated that the products be classified as steps 1 for BP, step 2 for RG and step 3 for WM of senior-friendly seafoods based on the KS, and as nutritional and physical properties-improved senior-friendly seafoods based on the Food Code.