Journal of the Korean Society of Food Science and Nutrition
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v.17
no.4
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pp.290-304
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1988
To evaluate the food habits of middle school students a survey was made by the method of questionaire on 820 middle school students consisted of 370 boys and 450 girls in Taegu city area. The results obtained are summarized as follows; Cookies, fruits, fruit juice and ice cream are their favorite eatings between meals in the decreasing order, And the eatings between meals are more frequent In girls and in the students from financially better homes and from the parents of higher education. More than half of the students have regular or irregular intake of additional vitamin tablets while about 22 percents of them skip their breakfast almost everyday. About 24% of the students hardly pay attention to the relationship between their nutritional condition and their meals. More than seventy percents of the students are taking the instant foods as one of their favorite dishes. The food intake score showed large variation($0{\sim}14$). In general the girls marked higher score than the boys. The students from financially better homes and the students from the parents of higher education marked higher scores. From the 5 scale preference test it was shown that fruits the most favored eatings of the students while the fish and crab scored the lowest mark.
This study was carried out to investigate the difference of the body image recognition, food habits, food behaviors and nutrient intake according to the obesity index(underweight-, normal-, obese group) in children(aged 10.8 ys, 47 boys, 33 girls). Subjects were eva1uated based an anthrofometric measurement and questionnaries including food record diary in Changwon. The results are summarized as follows. The weight, BMI, body fat, waist circumference, hip circumference and birth weight except height showed a significant difference between the three groups(p<0.001). The waist and hip circumference showed the possibility of being a predictor of obesity in children. The children's obesity was related to mother's weight(p<0.01), but not to father's. Ninety percent of the obese group, 47.8% of the normal group, and 37.8% of the underweight group preferred a thinner figure than their current status. The underweight group did more exercise regularly than the other groups. The underweight and obese groups had more irregular meal times and foster eating habits compared to the normal group. Most of subjects(89.9%) had an overeating habit, and tole ratio of the overeating habit increased with obesity. Fifty five percent of the subjects clad the habit of skipping meals, mainly breakfast. 46.8% of the subjects ate snacks more than twice per a day, the underweight and obese groups had snacks more of than the normal group. The preferred snack was 'cookies'and 'fruits & juices'. 53.8% of the subjects had a prejudice for special food(especially 'pulses'(37.9%) and 'vegetables'(31.0%)). The assessment scores of food behaviors was relatively low in most of the subjects. Most nutrient intakes, except vitamin B$_1$, C and phosphate, were lower than those of Korean RDA. The nutrient intake of the normal group was higher than the underweight and obese groups. The results of this study showed some nutritional problems, which indicates the need for nutritional management for the children. To educate children, who are able to change their food habits and lifestyle, each means to help healthy growth and to help them become healthy adults.
The aim of this study was to investigate the effect of sleep duration on dietary habits and body composition of university students. Sleep duration has recently been added to the list of risk factors for obesity. However, studies on this topic are fairly limited particularly in Korea. We studied the relationship between the duration of sleep and obesity principally based on body mass index and %body fat in university students. For this purpose, a survey was conducted on a total of 312 university students. The subjects enrolled for this study were divided into two groups: (1) those with sleep duration of <7 hours (148 students) and (2) those with sleep duration of >7 hours (164 students). Based on a self-reporting method, the participants filled up the questionnaires for more than 20 minutes. Based on the overall data obtained, we observed that most students (52.88%) skipped breakfast. This was mainly due to shortage of time (60.58%). We also observed that self-reporting dietary preferences included eating irregular meals (49.04%), overeating (19.55%), imbalanced diet (16.35%), and skipping meals (9.94%). It was found that cookies were the favorite snacks in the majority of the participants (50%). Our data reveal that the body mass index, fat mass, visceral fat, and subcutaneous fat, respectively of the shorter sleep duration group (<7 h/day) were 23.78 $kg/m^2$, 19.13 kg, 2.23 kg, and 11.15 kg. In contrast, in those of the control group (7 h/day), these values were found to be 21.84 $kg/m^2$, 13.88 kg, 1.56 kg, and 12.11 kg. We also observed that there were significant correlations of sleep duration with body mass index (p<0.05), fat mass (p<0.01), visceral fat (p<0.01), and beck depression score (p<0.01). Our data suggest that the body mass index in the shorter sleep duration group was higher than that of the control group; however, %fat, visceral fat, and subcutaneous fat in the shorter sleep duration group were found to be higher than those of the control group. The data obtained through our study suggest that short sleep duration is clearly associated with a modest increase in general and abdominal obesity particularly in university students.
This study was conducted to investigate the differneces in milling, physicochemical, rheological and end-product properties between Korean and American wheat cultivars. Also, rheological and bread baking properties of Korean wheat flour in blends with U.S. standard flour were investigated. The milling yield of Korean wheat rated 71.1% similar to 71.6% of U.S. wheat. The average AWRC 61.8% of the three Korean wheats ranked higher than the conventional value of 60% for classifying hard and soft wheat. The cookies made from Korean wheat flour showed comparatively good spread with diameter of 8.5-8.9 cm, and marked recommendable top grain score. The volume ranges 975-1175 cc of sponge cake made from all cultivars tested were lower about 4-26% than that of standard cake flour. especially, Wonkwang was selected as one which has special characteristics good for cookie and sponge cake. The volumes of breads from Korean wheat 리ours ranged 924-1020 cc, and Yongkwang of 1020cc marked the most appropriate characteristics for bread-making among the tested wheats. The proper blending ratio of Korean wheat flour to U.S. bread standard flour was revealed 30% in bread-making.
This study was conducted to provide basic information snack intake frequency, eating patterns and current dental caries in high school students. A total of 626 students (333 males, 293 females) in Gimhae city participated in this study. The survey conducted by using a self-administered questionnaire in January, 2008. Dental caries-related information was obtained during the students' physical examination at the designated clinical hospital in 2007. The results were as follows. Sixty three point nine percent of the students were shown to have dental caries, which includes a sealant. The average number of dental caries was 3.1, which was greater in female than in male students (p < 0.001). Eighty six percent of the students were shown to maintain correct toothbrushing habits to prevent dental caries. Twenty percent of the participants brushed there teeth ‘instantly’ a meal or snack, and 27.3% of the participants brushed there teeth, gum and tongue, and 58.9% of the participants received toothbrushing education. In snack intake frequency, participants with no dental caries had preference to white milk whereas those with dental caries had preference to snacks such as chewing gums and carbonated beverages. Female students were shown to have more dental caries maybe because of their higher snack intake frequency in chocolate, cookies and chips, yoghurt and ice-cream. Dental caries did not affect eating behaviors. This study suggests that more education for correct toothbrushing and cariogenic and detergent foods are needed for better dental hygiene.
3-MCPD created in manufacture process was regulated in our country about soy sauce and HVP. The latest paper reported that Bound 3-MCPD is created as intermediate. Germany common risk assesment reported that Bound 3-MCPD must be reduced because Bound 3-MCPD can be created in estimation circle when this is hydrolyzed in human body, but the data about the toxity of Bound 3-MCPD is lack. Therefore, We analysis about 209 items food such as soy sauce, seasoning food and meat-eating manufactured goods using bound 3-MCPD analysis method developed recently. As result of survey, bound 3-MCPD detected in 8 items among 44 traditional sauce (0.02~0.28ppm), 8 of soup 12 items (0.01~0.96ppm), in 22 items of sauce 60 items (0.01~0.55ppm), in 16 items of meat-eating manufactured foods 30 items (0.04~0.18ppm), in 20 items of snack cookies 28 items (0.09~1.43ppm), in 8 in roasted oil foods 10 items (0.04~1.22ppm), in 6 items of peanut processed food 10 items (0.06~0.25ppm), in 1 of vegetable cream 15 items (0.05ppm). Detected level was lower than the result of monitored by other countries.
Physicochemical properties and suitability of domestic wheat varieties for production of sugar-snap cookie were examined. Four kinds of commercially available wheat flour and six kinds of other domestic wheat varieties were tested. Domestic wheat varieties had protein contents ranging 7.7 to 11.5%, alkaline water retention capacity (AWRC) of 54.6 to 65.2%, Pelshenke values of 17 to 31 min, and sedimentation values of 19.6 to 30.8 mL. Peak viscosity range of Korean wheat flours measured by Rapid Visco Analyser was from 134.4 to 346.3 unit. Diameter of cookies fer US soft wheat flour was 7.8 cm and domestic wheat flours ranged from 7.2 to 7.9 cm. Cookie spread factors for Alchanmil, Tapdongmil, and Woorimil flours were higher than those of other flours. Protein content had significantly high correlation coefficient of $r=0.892^{**}$ with sedimentation value, and showed negative correlation with cookie diameter, spread factor, and top grain score. AWRC values had significantly high correlation coefficient of $r=-0.736^{**}$ with cookie diameter. Spread factor of cookie showed positive correlation with top grain score.
Cultural content is also the result of 'creation', but it is also the 'process' of understanding creation, practice, and difference. Therefore, content should be selected as high-quality content that fills the contents of fusion and knowledge, while it is popular. Confucius, the founder of East Asian humanism, influenced the philosophy of food and shelter, and the dietary life in the late Joseon period. Confucius influenced not only Confucian scholars but also the food hall of the Joseon Dynasty. "mwon-kyungje" Jeongjo-ji is an encyclopedia of food and cuisine, which consists of four volumes of seven chapters and deals with ingredients, recipes and benefits of foods and the relevant taboos. Here the author compiled more than a thousand recipes not just for meat and vegetable dishes but for various kinds of beverage such as soft and boiled drink, for confectionery sweets such as honey cookies and sugar candies, and even for wine and liquor "mwon-kyungje" As he lived to the age of 72, he looked back at his life and said that he should be careful about what to do and how to do well. The food culture of Confucius has been recorded in the daily life of the Josin period and is influenced by Suwon Seo-gu, "mwon-kyungje".
Juliano Rizzo and Thai Duong, the authors of the BEAST attack [11, 12] on SSL, have proposed a new attack named CRIME [13] which is Compression Ratio Info-leak Made Easy. The CRIME exploits how data compression and encryption interact to discover secret information about the underlying encrypted data. Repeating this method allows an attacker to eventually decrypt the data and recover HTTP session cookies. This security weakness targets in SPDY and SSL/TLS compression. The attack becomes effective because the attacker is enable to choose different input data and observe the length of the encrypted data that comes out. Since Transport Layer Security (TLS) ensures integrity of data transmitted between two parties (server and client) and provides strong authentication for both parties, in the last few years, it has a wide range of attacks on SSL/TLS which have exploited various features in the TLS mechanism. In this paper, we will discuss about the CRIME and other versions of SSL/TLS attacks along with countermeasures, implementations. We also present direction for SSL/TLS attacks resistance in practice.
This study was based on the information provided by 1,180 elementary school children (630 boys and 550 girls) of 5th or 6th grade in Changwon and Gimhae of Gyeongnam province. They were asked about perception and preference for rice foods by questionnaires. The purpose of this survey was to find the way of encouraging rice intake and preference which is currently getting lower because of increasing simple westernized eating habits, and to provide basic information needed for inheriting and improving our traditional rice-based dietary culture. The results are summarized as follows. Most of subjects (91.2%) thought that steamed rice is better than bread for own health. The reason why they chose to eat steamed rice was 'because it is good for health' (61.2%), and 'because it is staple food item that we eat everyday' (26.4%). Seventy one percent of girls and 52.7% of boys gave the answer 'because it is good for health' as the reason for eating steamed rice. The reasons for the importance of the rice-based dietary culture were 'because of its superior nutritional value' (40.8%), and 'because it is our traditional eating culture' (28.6%). While significantly more girls (42.9%) answered as 'because of its superior nutritional value', more boys (39.0%) answered as 'because it is our traditional dietary culture'. More boys (59.0%) preferred noodles than girls' (54.7%), and fruits were preferred more by girls than boys as substitution foods for steamed rice showing significant difference (p<0.01). They wanted rice product developed in the forms such as Ssalamyun (29.8%), Ssalmandoo (24.1%), rice noodles (20.6%), and rice bread (15.6%). The preference score on rice products of subjects was one dish meals (4.27) and drinks (4.26), snacks (3.72), convenience foods (3.61), and steamed rice (3.44) in order. Preferred food showing points over 4 were Ssalbap (plain steamed rice) (4.29) in steamed rice type food, Kimchi bokeumbap (4.56), Bokeumbap (4.55), Bibimbop (4.45), Omelet rice (4.44), Kimbap (4.42), Ddukkuk (4.33), Curried rice (4.33), Jajangbap (4.28), and Ddukmandookuk (4.24) in one dish meal type food, Samgak Kimbap (4.26) in convenience type food, Songpyun (4.48), Injulmi (4.18), Teokbokki (4.71), Ddukkochiguyi (4.46), and rice cookies (4.24) in snack type food, and Shikhye (4.61) and Misugaru (4.28) in drink type food. Based on these results, it may be said that elementary school children think the rice-based diet is good for health and this dietary culture should be inherited and developed not only in a traditional aspect but also in a nutritional aspect. Therefore, more studies are needed to develop various forms of rice food products and cooking recipes.
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