• Microbiology and Biotechnology Letters
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• v.24 no.4
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• pp.512-518
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• 1996

Eleven strains had been previously isolated from kimchi and identified in our laboratory. The ability of each strain in aroma production was investigated by sensory evaluation. Among them Saccharomyc s sp. YK-17, Saccharomyces sp. YK-18, Saccharomyces sp. YH-3 and Saccharomyces fermentati YK-19 produced fruity flavour. Especially, Saccharomyces fermentati YK-19 produced apple and pineapple-like flavours. Pichia media YK-11, Saccharomyces sp. YK-20 and Pichia chambardii YH-4 produced wine-like flavour. Debaryomyces sp. YK-6, Debarymyces coudertii YK-10, Saccharomyces sp. YK-12 and Pichia haplophilia YH-5 produced alcoholic flavours. Using the good flavour producing strains as starters, various groups of kimchi were fermented, and the sensory characteristics of each group such as odor, taste and total acceptability were evaluated. The acidic odor, moldy odor and taste were reduced by adding starter, while the fresh sourness odor and taste similar to fruity fiavour were increased by starter. Comparing with the control group, these odor, taste and total acceptability were increased in the starter-added groups, such as Pichia edia YK-11, Saccharomyces sp. YK-17, and Saccharomyces,fermentati YK- 19. Saccharomyces fermentati YK-19 added kimchi group was higher siginificantly (P<0.05) than the others at the total acceptability. Volatile compounds of the culture broth of Saccharomyces fermentati YK-19 were analysed by gas chromatography, and 6 species of esters and 4 species of alcohols were identified. Among them, the ester substances which broth largely responsible for the apple-like flavour in the sensory evaluation, were found to be ethyl 2-methyl butvrate, ethyl pentanoate and ethyl acetate.

• Journal of Oral Medicine and Pain
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• v.43 no.1
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• pp.8-15
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• 2018

Purpose: The purpose of this study was to assess the association of vocational interest and personality with oral mucosal diseases. Methods: Three hundred and fifty eight college students in Gyeonggi-do completed Vocational Preference Inventory L form and a questionnaire and collected data were analyzed by R program. Results: The prevalence of symptoms of oral mucosal diseases showed no significant difference among six vocational personality types. Compared to subjects with good or fair general health status, a significantly increased percentage of subjects with bad general health status showed herpetic stomatitis (p<0.01), oral malodor (p<0.01), and glossodynia (p<0.0001). Prevalence of taste disturbance increased significantly as the score of emotional instability (${\beta}=0.0438$, p=0.0082), anxiety (${\beta}=0.038$, p=0.0174), angry hostility (${\beta}=0.0398$, p=0.0061), depression (${\beta}=0.0443$, p=0.0035), and impulsiveness (${\beta}=0.0358$, p=0.0186) increased. Subjects who strongly felt oral malodor revealed significantly higher mean scales of scores of anxiety and angry hostility than subjects who did not feel oral malodor (p<0.05). Subjects who strongly felt oral malodor manifested significantly higher mean scales of scores of anxiety than subjects who slightly felt oral malodor (p<0.05). Conclusions: Taste disturbance was affected by emotional instability, anxiety, angry hostility, depression, and impulsiveness. Oral malodor was related to anxiety and angry hostility. Therefore, psychological aspects of taste disturbance and oral malodor could be evaluated by Vocational Preference Inventory L form.

• Journal of the East Asian Society of Dietary Life
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• v.24 no.5
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• pp.564-571
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• 2014

This study examined elementary school students' perceptions and acceptances related to kimchi in Jecheon area. This study examined with 388 elementary school students. Demographic characteristics of subjects, perceptions and acceptances related to kimchi were surveyed by self-developed questionnaires. Exactly 54.1% of subjects ate kimchi more than once per day, whereas 2.8% of subjects never ate kimchi. With regard to location, the home showed the highest percentage. Exactly 94.3% of respondents answered that eating kimchi was good for health. For acceptance, 86.9% of respondents answered that they liked kimchi. Reasons for liking kimchi were texture and special taste in order, whereas the most common reason for disliking was spicy taste. Baechu-kimchi (Chinese cabbage kimchi) was highly preferred, whereas pa-kimchi (green onion kimchi) was not. Subjects with an extended family preferred oisobagi (cucumber kimchi). There were significant differences between the groups with balanced dietary habits and unbalanced dietary habits in terms of acceptance for chonggak-kimchi (small radish kimchi), yeolmu-kimchi, kkadugi, mulkimchi (watery kimchi) and oisobagi. Elementary school students in Jecheon area recognized the importance and necessity of kimchi in Korean meals. Exactly 23.7% answered spicy taste as the reason for liking reason while 37.3% answered spicy taste as the reason for disliking. These results suggest that various kinds of kimchi need to be developed for elementary students with different levels of spiciness in addition to continuous nutrition education about balanced dietary behaviors at school and home.

• Journal of the East Asian Society of Dietary Life
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• v.16 no.5
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• pp.506-514
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• 2006

Sikhe a general Korean traditional drink, is a sweet drink fermented with malt powder rice(or glutinous rice). To investigate the perception and use behavior of Sikhe, 35.2% of the male and 64.8% of the female adults in Daegu and Kyungbuk area were surveyed. The methods frequency, percentage, chi-square test and one-way ANOVA were used to analyze the data. The main results were as follows : 36.1% of the participants usually preferred the traditional drinks and 94.7% of them had experienced Sikhe among the traditional drinks. Most respondents liked Sikhe owing to its good taste. In addition, the responses to 7 questions about the Sikhe were also measured on a 5-point likert scale. The statement 'Sikhe is a traditional food' and 'Sikhe is a natural food' received high positive responses and adults in their 50's had a generally better knowledge of Sikhe than the counterparts. furthermore, 54.8% sometimes purchased commercial Sikhe, but 40.7% didn't buy it at all due to bad taste. Therefore, to increase the intake of commercial Sikhe, the taste needs to be improved, and 59.8% of adults suggested that 'Add other ingredients and the taste can be improved', while 58.8% replied 'maintenance' prospects for Sikhe consumption.

• Journal of the East Asian Society of Dietary Life
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• v.23 no.2
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• pp.184-196
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• 2013

To investigate the image, preference, importance and satisfaction of foreign visitors to Korean foods, 220 visitors (male 104, female 115) were surveyed with questionnaires in English and Japanese. To achieve this research purpose, frequency analysis, exploratory factor analysis, t-test, and one way ANOVA was performed using the SPSS 15.0 program. Subjects had various nationality such as Europe/Oceania (24.7%/), Asia (23.3%), Africa (12.8), and North America (39.3). The representative food was kimchi > bibimbop > bulgogi but the most favorite food was bibimbop > kalbi > bulgogi in order. Like this, there are some discrepancies among the food choice, especially in kimchi, so the taste of kimchi should be improved according to the foreigners' taste. The results of the preference about the image get the high grade from those factors; the resonable price of Korean food, the spicy taste, various kinds of food according to the settings of the table, good for the health with excellent taste. Foreigners consider that the cleanliness of food and tableware, the sanitation of the restaurants, the taste of the food and freshness of ingredients are the important factors in Korean food and Korean restaurants. According to these factors, the satisfaction is affected by the attitude of servers > the taste of the food > the freshness of the ingredients > the amount of the food > the atmosphere of the restaurants > the cleanliness of the tableware in order. From the relationship between the importance and the satisfaction, the low grade food should improve the color and styling of the food and be served the appropriate amount of the food. Moreover, it is needed to improve the combining the spices and the ingredients to maintain a balance between strong and delicate flavors and with this, Korean food should be more globalized to promote the development of Korea tourism.

• The Korean Journal of Food And Nutrition
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• v.27 no.4
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• pp.716-724
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• 2014

This study was conducted as a comparative analysis, using the SPSS 17.0 program for a survey conducted from March to July 2013, on the level of perception and preference factors of Koreans and Americans residing in Virginia, USA(89 male and female adults of 20 years of age or above). For the information on the degree of obesity, a survey was used and the subjects provided with their heights and weights. The researcher used this data to calculated their BMI and distinguished the degrees of obesity. For the BMI, the obesity diagnosis of Korean Society for the Study of Obesity was used for Koreans, and the WHO's obesity diagnosis on adults were employed for Americans. First, regarding the Korean participants, the level of obesity appeared in the order of normal (79.6%), overweight (14.3%), and underweight (6.1%). Also, the level of perceptions of their health conditions appeared in the order of average (51.7%) and good (34.7%). No one perceived their health to be in poor condition. Meanwhile, for the American participants, the order was as follows: overweight at about 45%, normal weight at about 35%, obesity at about 12.5%, and underweight at about 7.5%. In terms of the level of perception of health during ordinary times, about 55% of the American participants answered that they are in good health. Therefore, the Americans were found to perceive their health to be in relatively better condition than the Koreans residing in the USA. Also, concerning the level of interest in health while eating food at ordinary times, the American participants were discovered to be more interested (about 62.5%) than the Korean participants. The research on their preference for salty taste was conducted as a survey, and the subjects were asked to choose an item according to their subjective feeling. Regarding the preference for salty taste, both Koreans and Americans residing in the USA responded as moderate. However, a higher proportion of Americans than Koreans responded to favor salty taste. Concerning the reason for their preference for salty taste, Koreans responded with various reasons whereas Americans mostly responded that it is because they eat salty food frequently. For any changes in dietary behavior related to eating salty food, both Korean and American respondents thought that the amount of their daily intake of salt is appropriate and that they consider taste as most important in selecting a snack. Based on the above data, the results of this research indicate a need for actual improvement in the diet with regard to salty food along with diverse policies for promoting life with a low salt diet in future.

• Journal of Physiology & Pathology in Korean Medicine
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• v.23 no.6
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• pp.1247-1260
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• 2009

This dissertation aims to study the five tastes in the Yellow Emperor's Canon of Internal Medicine. Medicinals as well as Foods are classified by the five tastes: sweet, sour, bitter, salty and pungent, which can be tasted by the tongue. With the development of the theory dealing with the medicinal properties, some flavors are summarized out of clinical actions of medicinals, therefore, there is a little difference between the flavors of medicinal herbs and the tastes got by tongue. Each taste acts on or has direct influence on a specific vital organ, and each of which has different physiologic actions. Taste also has a long-term or post digestive effect on the body and its metabolism. When each taste is consumed in moderation, it benefits the corresponding organ. Over-indulgence in any taste harms the organ and creates imbalance among the five vital organ systems. The Korean medicinal herbs with same flavor mostly possess similar actions while the medicinal herbs with different flavors show different actions in the treatment, which are shown as follows. Sour has absorbing, consolidating and astringent actions and acts on the liver. Bitter has the actions of drying or resolving dampness, purging and lowering and acts on the heart. Sweet has the nourishing, harmonizing and moistening actions and acts on the spleen. Pungent has an action of dispersing and promoting circulation of gi and blood and acts on the lungs. Salty has the effects of softening hard nodes or masses and promoting defecation, etc and acts on the kidneys. The five organ systems control and support each other. Proper coordination only exists when there is no one organ stronger or weaker than the rest. Since the five tastes have direct influences on the five organs, the diet we take should have a good combination of the five tastes in order to promote internal balance and harmony. They control our well-being and create dietary balance. Excessive consumption of any of these could result in adverse effects. In a word, when the properties of the five tastes respectively are distinguished, their natures and flavors cannot be separately considered. I think the harmonization of food and medicinals should be stressed on good nutritional diet to maintain good health. The traditional belief that food and medicine share the same origin is a part of Korean medicine tradition.

• Journal of the Korean Society of Food Science and Nutrition
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• v.24 no.6
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• pp.932-936
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• 1995

The effect of chitosan in a salting step on the shelf-life to kimchi was investigated. Kimchi, prepared by using Chinese cabbages soaked in 10% salt solutions containing 0, 5, 10, 20 or 30% of 0.5% chitosan solution, was examined for taste and texture by sensory and instrumental evaluation during fermentation at $10^{\circ}C$ for 20 days. Sensory tests of the control kimchi revealed a strong sour taste with poor crispness and overall taste after 10 days of fermentation. In comparison, the chitosan-supplemnted kimchi, especially that reated with 20 and 30% of a chitosan solution, revealed a sour taste only after 20 days of fermentation, while still maintaining good crispness and overall taste. Properties of hardness and gumminess of kimchi measured instrumentally were higher for the chitosan-added kimchi than for the control products. This increased with increasing volumes of chitosan solution throughout the fermentation periods. These results suggest that the shelf-life of kimchi can be extended approximately 10 days using Chinese cabbage soaked in 10% salt solutions containing 20 or 30% of a 0.5% chitosan solution.

• Korean Journal of Community Nutrition
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• v.25 no.4
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• pp.267-279
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• 2020

Objectives: This study investigated the utilization and satisfaction of lunchbox by considering the dietary lifestyle of the consumer, in order to refine the purchasing behavior of adults with experience in using lunchboxes, and to provide basic data for efficient menu configuration and direction towards improvement. Methods: A total of 600 adults in Seoul and Gyeonggi-do answered a self-administered questionnaire designed to investigate general characteristics, utilization, menu preference, satisfaction, prospection, and improvement of lunchbox, according to the dietary lifestyle. Results: The study subjects were classified into 5 groups: 'taste seeking group', 'safety seeking group', 'health seeking group', 'economic seeking group' and 'convenience seeking group. Considering purchase value of the lunchbox, the 'taste seeking group' had a high utilization rate (35.1%) for prices less than 4,000 won (P < 0.05). Lunchboxes were mainly purchased at the lunchbox store (43.3%) and convenience store (37.7%). The important factor that contributed to purchasing a lunchbox was taste (61.3%), which was highest in the 'taste seeking group' (P < 0.01). The 'health seeking group' showed the highest preference for the low-salt diet lunchbox menu (26.0%) (P < 0.05). The satisfaction of 'health seeking groups' was lowest when considering addition of condiments (2.34%), origin of ingredient (2.59%), and provided calorie (2.81%) (P < 0.05). The overall response indicated future use of the lunchbox (69.6%) (P < 0.01); 35.8% respondents recommended the purchase of lunchbox, where convenience of purchase was the highest factor contributing to recommendation (50.2%) (P < 0.05). Conclusions: Taken together, our results indicate that taste was emphasized in every group purchasing the lunch box. Convenience of purchase was the highest factor contributing to satisfaction, which was relatively low when considering addition of condiments, nutrition and origin of ingredients. We propose that it is necessary to improve the development of various menus for increasing satisfaction by selecting the right ingredients contributing to good health of the consumer.

• Journal of the East Asian Society of Dietary Life
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• v.17 no.5
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• pp.719-726
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• 2007

The results of adding citrus to Jeungpyun in order to diversify the kinds of Jeungpyun available as well as enhance the usage of citrus fruits, were assessed in this study. During fermentation pH was reduced carbon dioxide development was lowest in the citron product and then the tangerine, cumquat and control Jeungpyun, respectively. Volume and specific volume of Jeungpyun were highest id the cumquat Jeungpyun. For all the citrus additions, except for the cumquat there were no significant differences when compared to the control. The tangerine product showed the highest redness and yellowness among the types of citrus, fellowed by cumquat, citron, and lemon. In the textural property tests, hardness was highest in the lemon Jeungpyun. Then, less hardness occurred in the order of citron, control, tangerine and the cumquat Jeungpyun was the softest. In the sensory evaluation, preferred color was in the order of tangerine, cumquat citron, and lemon Jeungpyun. Ultimately, the tangerine Jeungpyun had the best color. In the taste test, preferred taste was in the order of cumquat, citron, tangerine, and lemon Jeungpyun, all resulting in better taste than the pure Jeungpyun. The softness of the Jeungpyun was good in the order of cumquat, tangerine, control, citron, and lemon Jeungpyun. Thus, the cumquat Jeungpyun was softest, while lemon Jeungpyun was hardest. Finally, overall acceptance was good in the order of cumquat, tangerine, citron, control, and lemon Jeungpyun.