• KOREAN JOURNAL OF CROP SCIENCE
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• v.36 no.3
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• pp.271-279
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• 1991

The changes in fat acidity of brown rice and eating quality of rice during long term grain storage of unhulled rice were evaluated for the government managed rices. The Tongil type rice grains had consistently significantly lower fat acidity during three and half year storage than the Japonica type rice. On sensory evaluation of the fresh milled cooked rice the eating quality of the long term stored rices, 1987, 1988, and 1989 produce Tongil did not differ much each other even though increase in fat acidity by year of storage. The Japonica rices produced in 1989 and 1990 in different locations and stored there also did not differ much in eating quality. The grains stored in storehouses of super grade did not differ significantly from those stored in the first grades, but the grains stored (4 $^{\circ}C$, RH 50%) grains have kept the eating quality almost same as the fresh grains even after two and half years. A higher degree of milling did not improve significantly the sensory taste of cooked rice of the grains long term stored.

• Journal of the Korean Society of Food Science and Nutrition
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• v.30 no.1
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• pp.70-74
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• 2001

The effects of aging time (1, 8 and 15 days) and endpoints cooking temperature (70, 75 and $80^{\circ}C$) on the physicochemical and sensory characteristics of pork neck were evaluated. Pork neck was obtained from the carcass (live weight, 105~110 kg ; grade B) chilled for 24 hours after slaughter. As a aging period became longer, the pH, L value and drip loss became higher while its a value and shear force value (SFV) of raw meat became lower. As a aging period became longer, the cooking loss, hardness, chewiness, SFV became lower, and its tenderness, juiciness and taste became better. However, no difference was observed in the aroma, and the one aged for 8 days in the cooked meat showed the best palatability. Increasing endpoint cooking temperature from 70 to $80^{\circ}C$ increased hardness, SFV and taste, and decreased chewiness, sensory tenderness and juiceness (p<0.05). However, it had no effect on the cohesiveness. Also, the one for which the endpoint cooking temperature became $75^{\circ}C$ in the cooked meat showed the best springiness, aroma and palatability.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.52 no.6
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• pp.562-570
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• 2019

To develop natural-tasting fish paste from the pufferfish Lagocephalus wheeleri, steamed pufferfish paste (SPP) was prepared and its optimal processing conditions, quality metrics, and shelf-life characteristics were examined. SPP was produced by thawing golden threadfin Nemipterus virgatus surimi (FA grade), then adding 10% unwashed pufferfish surimi (PS), 1.5% salt, 8.0% wheat starch, 0.25% calcium carbonate, 0.25% sugar, 0.75% sorbitol, 0.25% polyphosphate, and 12.0% pufferfish hot-water extract (Brix 10°). The meat was ground with a Stephan mixer, molded at low temperature (18℃, 10 h), vacuum packed in a laminated plastic film bag, heat treated with hot water (95℃, 50 min), and cooled. As the amount of PS added increased, the whiteness, gel strength, and shear strength of the SPP decreased slightly. However, the SPP folding test showed no deterioration in the texture. In the sensory evaluation, the SPP received a higher rating for taste, smell, and overall taste than commercial Japanese pufferfish Kamaboko. The total amino acid content of the SPP was 10,262.6 mg/100 g; the major amino acids were aspartic acid, glutamic acid, alanine, valine, leucine, lysine, and arginine. The free amino acid content was 133.0 mg/100 g; the major amino acids were taurine, glutamic acid, glycine, alanine, cystine, and lysine.

• Applied Biological Chemistry
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• v.31 no.3
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• pp.284-291
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• 1988

To establish the evaluation method of Korean green tea, the correlation between physicochemical characteristics and sensory scores by the expert panels were investigated using 15 kinds of green tea manufactured in 1985 from Korea, Taiwan and Japan. Tannin, caffeine and total free amino acid contents of Korean green tea are higher than foreign ones, but the chlorophyll content is the highest in Japanese high grade green tea. Sixteen free amino acids including theanine were identified, and theanine, glutamic acid, aspartic acid and arginine contents which affect the brothy taste of green tea infusion were highest in Korean green tea. Sensory score for the color of Korean green tea infusion were lower than Japanese tea, but the flavor and taste were the best. In multiple regression analysis, the quality affecting factors of the green tea were elucidated as the caffeine$(X_1)$, chlorophyll b$(X_2)$, total free amino acid contents$(X_3)$, and L value$(X_4)$ of green tea infusion. The regression equation was expressed as $Y=-21.5820+2.1691X_1+0.0130X_2+0.2314X_3-0.0001X_4$ and then $R^2$ was 0.8919.

• Journal of the Korean Dietetic Association
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• v.17 no.3
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• pp.276-286
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• 2011

This study aimed to examine consumers' interest, preference, and consumption frequency of Kimchi in elementary school students in the fifth grade and their mothers living in Changwon city. In a comparison of eating habits, students exhibited better eating habits than their mothers (P<0.01). Though the mothers' levels, were higher than those of the students in the category of 'eat foods with a bit of salt usually', the students' levels were higher in the rest of the eating habit categories. The categories of 'like Kimchi', 'spicy taste', and 'appropriately spicy taste' got high levels. Among several kinds of Kimchi, both students and mothers preferred 'cabbage Kimchi' the most. Among various Kimchi foods, preferences for 'Kimchi pancake', 'fried rice with Kimchi', and 'tuna Kimchi soup', were highest in that order. The preferences differed between students and mothers in each category; mothers' preferences were significantly higher than those of students. However, in the rest of categories, except 'boiled kimchi and fish' and 'Kimchi and stir-fried spicy pork', students' preferences were higher than mothers' ones. Compared to their preferences, students' consumption frequencies were significantly higher than mothers' ones (P<0.01). There were positive correlations among students' eating habits, awareness of Kimchi, consumption frequency, and preference. For mothers, there were positive correlations not only between eating habits and awareness, but also between awareness and preference.

• Journal of Korean Home Economics Education Association
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• v.11 no.2
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• pp.89-110
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• 1999

The purpose of this study was to investigate the perception and eating behaviors of middle school students in Kwangju area about food and nutrition section of Home Economics course. The subjects were 480 middle school students. The major results were as follows： On the perception f food and nutrition section, the 1st graders learned ‘how to settle the problems related to food and nutrition and food choices’. The 2nd graders learned ‘the knowledge and principle of food and nutrition for improving dietary life’. The 3rd graders learned ‘actual dietary life functions like arranging menu and preparing meals’. Consequently, there was a significant difference in each grade and all boy and girl students have the highest response to the item ‘they learn how to settle the nutrition problem and foods choices’. On the interests in food and nutrition section, lower graders and girl students have higher interest than hgiher graders and boy students. The area which was considered as most interesting in food and nutrition sections was ‘cooking’ in all students. The perception of the concern on dietary life after learning food and nutrition section was higher in the 1st graders. On the perception of the area where was a great change in their own dietary life after learning food and nutrition section, the 1st graders responded there was a great change in ‘balanced dietary life’, the 2nd graders in ‘eating habit and nutrition of adolescence’and the 3rd graders in ‘cooking’. Especially, girl students showed more changes. On the perception of degree which food and nutrition section gives a help to actual life, students over 50% responded that it was helpful to their actual life. This showed that the lower the grades, the more help it gave to those students. On the perception of mother’s job, the students with working mother considered that they learned ‘actual dietary life functions like functions like arranging menu and preparing meals’from the food and nutrition section. In addition, they had high interests in the area of ‘cooking’. It was recognized that as the family size was greater, the food and nutrition section gave more helps to actual life. On eating behaviors of breakfast, the higher the grade, the more frequent they don’t have breakfast, boy students have more frequencies of having breakfast than girl students and the primary reason of not having breakfast is poor appetite. On whether going without a meal affects study or not, most of the 1st, 2nd and 3rd graders whether they are boys and girls or not responded it affected their study. On eating behaviors of lunch, most of boy and girl students in the 1st, 2nd 3rd grade have lunch box. On eating behaviors of supper, eating time is usually between 7：00 and 8：00 p.m and eating hour is mostly 10 or 15 minutes. On eating behaviors between meals, frequency of eating between meals is mostly once or twice a day and girl students have more frequencies of eating between meals, and the cause was hunger commonly in boy and girl students and ‘killing time’in girl students. The focus in getting the foods is ‘taste’and favorite food is fruit regardless of the grade.

• Food Science of Animal Resources
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• v.24 no.1
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• pp.15-22
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• 2004

The effects of carcass grade and addition of mugwort powder on the quality of the boiled pork were investigated. Four kinds of boiled pork were denoted as B$\_$+/ or E$\_$+/ boiled porks which were made with 0.3% mugwort powder to carcass grade B or E, respectively, and B$\_$0/ or E$\_$0/ boiled porks which were made without mugwort powder. The effect of carcass grade and the added mugwort powder on the pH, volatile basic nitrogen(VBN), bacterial count, calorie, essential amino acids, free amino acids, unsaturated fatty acids, color difference and palatability of boiled porks were not significant. Water holding capacity(WHC), springiness and Hunter's L$\^$＊/ value of B$\_$0/ boiled pork were higher than those of E$\_$0/ boiled pork. Hunter's a$\^$＊/ value of B$\_$0/ boiled pork were lower than those of E$\_$0/ boiled pork. Sensory taste and tenderness value of B$\_$0/ boiled pork were higher than those of E$\_$0/ boiled pork(p>0.05). WHC, 2-thiobarbituric acid reactive substances(TBARS) value and residual nitrite of boiled pork with mugwort powder were lower than those of boiled pork without mugwort powder.

• Journal of the Korean Dietetic Association
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• v.21 no.3
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• pp.203-214
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• 2015

A survey was conducted to determine the perception of youku meat among college students majoring in food and/or nutrition. The survey participants were located nationwide, and the responses from the 2,454 students were analyzed. More male and higher grade students answered that they had heard about youku while only 20.0% had learned about Youku from class. Approximately 37.8% of the subjects recognized youku as 'dairy cattle which are too old to produce milk', 54.0% as 'all cattle grown for the purpose of meat', and 23.1% as 'all cattle except for Hanwoo'. Only 37.4% recognized youku correctly. Compared with the same quality grade, 25.3% recognized youku meat as being cheaper than imported beef, and only 25.6% of them recognized that youku meat has less fat than imported beef. As much as 83.3% of subjects did not know whether or not they were served youku meat, and 23.7% of subjects wanted increased availability of youku meat. As much as 22.9% of subjects opposed the increased use of youku meat, and the reasons were "it does not taste good" (18.1%), "it is not Hanwoo" (15.1%), "it is not sanitary" (13.1%), and "it is imported" (6.0%). The findings provide basic information on barriers regarding youku meat promotion among subjects who will be dieticians in food service or managers in purchase departments of catering companies in the future.

• Korean Journal of Health Education and Promotion
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• v.12 no.2
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• pp.120-138
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• 1995

In order to find smoking status and its related factors for female students, a survey was conducted for 1,045 female students of a women's university in Seoul from 22nd of May to 18th of June, 1995. The results were as follows: 1. Of the 1,045 respondents, 7.4% of them were current smokers and 20.6% of them were ex-smokers. The rate of smoking by the major field of study was 18.5% in art and physical education, 10.6% in liberal art and social science, 1.9% in natural science, and 1.2% in medical science. The rate of smoking by the grade was 4.1% in the freshman, 5.9% in the sophomore, 10.9% in the junior, and 10.0% in the senior grade. 2. 7.2% of respondents experienced first smoking at junior high school, 16.8% at senior high school, 4.1% after high school, and 69.2% at college. 3. The major motivation to start smoking was 'curiosity'(57.9%), 'releasing stress'(21.6%), and 'temptation from friend or senior'(12.0%). 4. The first smoking place was 'entertainment place'(49.6%), 'own room'(20.5%), and 'school '(11.3%). And the first smoking companion was 'friend'(62.3%), 'alone'(19.9%), and 'senior or junior'(5.1%). 5. The average quantity of a daily smoking was 6.16±5.29 cigarettes in current smokers and 31.2% of them had experience to quit smoking at least one or more time. 6. Most of the reasons to quit smoking in ex-smoker were due to 'bad taste '(60.5%), 'health concern'(27.4%) and 'religion'(2.3%). 7. Current smoker and ex-smoker had more positive attitude for the female smoking than nonsmoker. And 76.7% of nonsmokers answered that they would not smoke in the future. 8. Most correspondents(89.8% of nonsmoker, 83.7% of ex-smoker, 80.5% of current smoker) strongly supported the antismoking movement. 9. The major information source in smoking were from 'radio, TV'(51.0%), 'newspaper, magazine'(38.8%) and 'school'(7.7%). 10. The multiple logistic regression analysis showed that the related factors for smoking status were satisfaction of home life, coffee intake, alcohol drinking, sister's smoking, girl friend's smoking, and knowledge about smoking.

• Korean Journal of Community Nutrition
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• v.16 no.5
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• pp.539-547
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• 2011

This study evaluated effects of food additive nutrition education on food additives-related knowledge, subjective awareness, and perception and dietary behaviors of food label use and processed-food intake. The study subjects were 5th grade students attending an elementary school in Seoul. A total of 101 subjects were assigned to either education (N = 50) or control (N = 51) group, and 3 food additive nutrition education classes were implemented to the education group. Self-administered questionnaires were collected from all the participants twice, a week before and after the nutrition education to compare the changes between two groups. The food additives-related knowledge and subjective awareness significantly improved in the education group compared to the control group. The changes in perceived harmfulness and perceived necessity for taste were also detected significantly different between the two groups, with more positive changes in the education group. Dietary behaviors of checking food labels and trying to purchase processed-foods with less food additives improved in the education group at a significant level in comparison with the control group. Additionally changes in intake frequency of several processed-food items were significantly different between the groups, again in a more positive direction in the education group. The study findings showed short-term food-additive nutrition education including hands-on activities could positively modify elementary school children's food additives-related knowledge, perception, and certain dietary behaviors, stressing better settlement of in-class nutrition education within an elementary school's education curriculum.