• 한국식생활문화학회지
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• 제26권3호
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• pp.295-306
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• 2011

This study was performed to investigate patterns of fortified food (FF) consumption and intake of vitamins and minerals from FFs among 577 Korean children (12.4 years of age) who attended elementary or middle school. FFs eaten by children as a snack were surveyed using the food record method during 3 days, including 2 week days and one weekend. As a result, 114 FF items were eaten by the children, and several kinds of nutrients such as vitamin A, D, E, B complex, C, calcium (Ca), iron (Fe), and zinc (Zn) were fortified in these foods. Ca-FFs (65.8%) were most frequently consumed, followed by vitamin C-FFs (33.4%) and vitamin D-FFs (33.3%). The number of FF items in each food group was the most in the milk group (n=24, 21.0%), followed by the beverage group (n=19, 16.7%), and the cookie/bread/cake group (n=17, 14.9%). Fortified nutrients in FFs were in various combinations, but the major combination patterns were Ca, Ca plus vitamins, Ca plus vitamins plus other minerals, and Ca plus other minerals. Daily mean intakes of vitamins and minerals from the FFs were 66-300% more than those of the recommended nutrient intake (RNI ) or adequate intake (AI) for most vitamins and minerals. Daily maximum intakes (95th percentile) of vitamins and minerals from FFs were 1-15 times the RNI or AI for most vitamins and minerals. Vitamin and mineral consumption ratios from each FF group were different according to the kind of fortified nutrient. For example, vitamin C was mostly eaten in fortified beverages (46-54%), and Fe was mostly eaten in fortified cookie/breads/cakes (87%). The above results show that FF consumption varied widely among the children, and that most of the children's foods were fortified with several vitamins and minerals without a common rule; thus, subjects risked over consuming vitamins and minerals by eating FFs. Therefore, practical guideline on FF use for children's optimal nutrition and health should be provided through nutrition education.

• 한국환경보건학회지
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• 제31권6호
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• pp.475-482
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• 2005

This study aimed to determine the fluoride intakes in 120 preschool children aged 3 to 6 residing in Jumunjin (community water fluoridation area) and Gangneung (non-fluoridation area). The parents were asked to collect 24-hour urine samples and to duplicate the samples of all the diets that their children ingested in the day of urine collection. The acid-diffusible fluoride in the food and non-carbonate beverages were isolated by the acid-diffusion technique and then measured with a fluoride electrode. The fluoride in carbonate beverages, drinking waters and urine samples were measured directly with a fluoride electrode. The geometric mean (geometric standard deviation) of daily fluoride intakes from all kinds of diet was 5.99 (2.27) $\mu$g/kg/day in the children in Gangneung and that of the children in Jumunjin was 18.36 (2.69). The amount of fluoride intake by food and drinking water in fluoridation area were significantly larger than that in non-fluoridation area but the statistical difference of fluoride intake by beverages between two areas was not observed. The GMs (GSDs) of daily fluoride excretion by urine of children in non-fluoridation area and in fluoridation area were 8.39 (1.73) and 18.62 (1.77) $\mu$g/kg/day, respectively. The correlation between fluoride intake from diet excluding beverage and urinary excretion was statistically significant. It is concluded that the amount of fluoride intake of children living in fluoridation area did not exceed the upper intake level to avoid the risk of dental fluorosis (2.2 mg/day in 4- to 8-year-olds) and urinary excretion of fluoride was good indicator of fluoride intake from diets.

• 대한지역사회영양학회지
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• 제28권5호
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• pp.363-375
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• 2023

Objectives: The objective of this study was to identify factors associated with adolescent obesity, as well as any new factors that correlated with a change in the rate of obesity over time. Methods: The study used 5-yearly data collected by the Korea Youth Risk Behavior Survey starting from the year 2006 up until 2021 (data from 2nd, 7th, 11th, and 17th surveys were analyzed). Factors such as demographics, dietary factors, health behavioral factors, and mental health factors were studied. All data were analyzed using IBM SPSS 27.0, employing chi-square tests and multiple logistic regression analysis. Results: This study included data from a total of 255,200 participants. Factors contributing to obesity varied with time. Over the survey duration of 15 years, low academic achievement, parents with low levels of education, low frequency of fruit consumption, low frequency of fast food intake, long periods of being seated, and high levels of stress were significantly associated with a high rate of obesity. Factors that showed a new correlation with an increase in obesity rates included living with single parents, low frequency of muscle strengthening exercises, and experiencing intense sadness and despair in the past year. Factors that were correlated with a change in obesity rates over time included household economic status, frequency of carbonated beverage consumption, frequency of intense physical activity, and frequency of alcohol consumption. Breakfast intake and smoking were not significantly associated with obesity rates in the 15-year period. Conclusions: While several factors associated with obesity remained consistent over time, several new factors have emerged in response to social, economic, and environmental changes contributed to a change in obesity rate over time. Therefore, to prevent and manage adolescent obesity, continuous research into the new emergent factors contributing to obesity is needed.

• 현장농수산연구지
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• 제25권2호
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• pp.30-35
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• 2023

본 연구에서는 E-nose 장비를 이용한 말고기와 소고기의 부위별 향기 특성을 확인하고, GC 분석을 통한 각 시료의 올레산 함량을 비교하여, 영양학적으로 높은 가치가 있으나 소비가 저조한 말고기 소비 시장에 대한 마육 가공식품의 대중화 가능성을 연구하였다. E-nose 분석 결과 말고기와 소고기의 향기의 종류에는 크게 차이가 없었다. 하지만, 부위별로 향기의 피크 최대치의 차이가 있어 향의 진하기에는 차이가 있는 것으로 나타났다. GC 분석 결과, 올레산 함량은 소고기가 높은 경향이었고, 말고기에서도 부위별로 유의한 차이가 있었다(p<0.05). 말의 부위별 차이에 대하여 향후 소와 말의 동일 부위별 지방산 비교 및 각 개체의 부위 간의 지방산 비교 연구가 필요하다. 본 연구 결과에서 소고기와 말고기의 육향은 차이가 없는 것으로 나타나, 비육마 가공식품은 소비자의 인식 변화 및 공급 유통망이 확보되면 제품 대중화가 가능할 것으로 판단된다.

• 한국식생활문화학회지
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• 제26권4호
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• pp.354-363
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• 2011

This study aimed to find the differences in weight control status and eating behavior of satisfied and dissatisfied female high school students regarding their own body shape. The participants consisted of 238 students at two female high schools in Nonsan-si, Chungnam-do in May of 2008. Self-assessment evaluated present body shape and ideal body shape they would like to have by providing silhouette drawings. The subjects were divided into two groups, 'satisfied' and 'dissatisfied', according to the differences between present body shape and ideal body shape. In the distribution of subjects according to body mass index, 100% of overweight, 97.0% of normal weight and 48.7% of underweight belonged to the dissatisfied group. There were significant differences in weight control and eating behavior between dissatisfied and satisfied groups in terms of frequency and reasons of conducting weight control behavior, body weight return after weight reduction, skipping breakfast and consuming fast food. The satisfied group was two times more likely to not conduct weight control behaviors compared to the dissatisfied group. The main reason for trying to control weight differed according to the group; the reason was feeling fat in the dissatisfied group and desiring to be healthy in the satisfied group. The percentage of subjects that returned to their original weights after weight reduction was 5 times higher in the dissatisfied group. The percentages of subjects that regularly skip breakfast and consume fast food were both higher in the dissatisfied group than in the satisfied group. The dissatisfied group responded 'eating alone' more frequently among nine binge eating behaviors compared to the satisfied group. Both groups, however, did not show any difference in overeating of meals, eating speed, intake frequency of regular meals, food preference, preferred cooking method, carbonated beverage intake and snack eating behavior. In summary, the dissatisfied group tried more unnecessary body weight reduction and had poor eating behavior. Accordingly, to correct the biased perception of body shape by the majority of female high school students, the values of our society should change toward the pursuit of beauty of health.

• Asian Pacific Journal of Cancer Prevention
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• 제16권17호
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• pp.7561-7566
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• 2015

Ziziphus jujuba (ZJ) fruit is rich in bioactive functional components such as polysaccharides, triterpenoid acid, flavonoids and oleamide. It has been commonly used in the treatment of various diseases including diabetes, digestive disorders, diarrhea, skin infections, liver and urinary diseases. However, its dietary effect on chemoprevention of colon cancer has never been studied. The present study was to evaluate the protective effects of dietary ZJ on colitis-associated colon carcinogenesis in azoxymethane (AOM)-dextran sodium sulphate (DSS)-treated mice. AOM was injected (10 mg/kg b.wt., i.p.) and three cycles of 2% DSS in drinking water for 7 days with 14 days of normal drinking water in-between was administered to induce colitis-associated colon cancer. ZJ fruit was supplemented in feed as 5 and 10%. Dietary ZJ significantly attenuated aberrant crypt foci (ACF) formation thereby decreasing the progression of hyperplasia to dysplasia. In addition, it significantly reduced circulating white blood cells, lymphocytes, neutrophils, monocytes, eosinophils, basophils and platelets compared to colon cancer mice. We conclude that ZJ supplementation delayed the progression of colon cancer from hyperplasia to dysplasia and ultimately adenocarcinoma and cancer. In addition, it decreased circulating tumor-related leucocytes, main regulators of cancer inflammation. Therefore, dietary consumption of ZJ fruit attenuated the formation of ACF and delayed the progression of colon cancer.

• 한국환경보건학회지
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• 제40권6호
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• pp.435-441
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• 2014

Objectives: Bisphenol A, or BPA, is a chemical component in polycarbonate plastic with which many people come into contact every day. A great deal of controversy has arisen over its safety since this material, which is known to disrupt the human endocrine system and cause neurological difficulties and cancer, is commonplace in beverage containers, food can liners, and receipt paper rolls. In this study, we determined the levels of exposure to BPA of workers in the service industry depending on the number of receipts contacted. Methods: The participants were 16 male and 18 female workers employed in the service industry. Using a questionnaire, we investigated general and job characteristics. Urine samples were collected and analyzed by the LC-MS/MS technique after enzymatic hydrolysis and solid phase extraction (SPE). Results: The geometric mean (GM) concentration of urinary BPA from all subjects was 1.02 ng/ml. Workers were exposed significantly to more BPA according to the number of receipts they contacted, their work experience, and working hours per day. The BPA concentration of those who touched more than 100 receipts per day was 3.09 ng/ml, while that of the other participants was 0.61 ng/ml. It was shown that wearing gloves can protect from BPA exposure. Conclusion: We determined the urinary BPA concentrations of workers in service industry and found that the contact with receipts could increase the BPA exposure of service workers.

• 한국조리학회지
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• 제21권5호
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• pp.204-213
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• 2015

본 연구의 목적은 말레이시아의 조호바루 지역에 거주하는 신세대 소비자들의 카페의 foodscape가 만족도와 행동의도에 어떠한 영향을 미치는지에 관한 것이다. 총 330명의 카페 고객을 대상으로 설문조사를 하였다. 말레이시아 조호바루 지역은 이웃국가인 싱가폴과 인접한 국경도시로, 말레이시아의 타지역에 비해서 신세대들이 보다 많이 거주하고 있다. 이에 따라 본 연구는 말레이시아의 타 지역과 인구통계학적으로 차별화가 되는 조호바루 지역을 선택함으로써 보다 차별화된 결과를 지니고 있다고 할 수 있다. 본 연구는 카페 고객이 느끼는 foodscape 요인들이 만족도와 향후행동에 어떠한 영향을 미치는지에 알아보고 있다. 카페의 음식의 presentation과 temperature와 freshness는 만족도에 긍정적인 영향을 미친다. 하지만 food variety는 만족도에 긍정적인 영향을 미치지 않는 것으로 나타났다. 또한, 만족도는 향후행동 의도에 긍정적인 영향을 미치는 것으로 나타났다. 향후 말레이시아의 국경도시인 조호바루에 진출하려는 cafe 관련 식음료 사업체들에 어떤점이 고객들에게 어필할 수 있는지를 보여주는 중요하고 의미 있는 연구라고 할 수 있다.

• 한국식품과학회지
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• 제20권3호
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• pp.317-325
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• 1988

농축대두단백으로 만든 두유를 여러 가지 정도로 가열 처리한 후 젖산균 5종을 각각 접종하여 두유의 가열처리가 젖산균의 생육과 산생성 그리고 대두요구르트의 관능성과 커드의 침전에 미치는 영향을 관찰하였다. 먼저 산생성을 보면 표준시료(비가열(非加熱)시료)에 비하여 $60^{\circ}C-10$분 또는 그 이상의 가열로 모든 균주에서 산생성이 촉진되었으며 그 촉진의 정도는 대체로 가열의 정도가 높을수록 점차적으로 증가하여 Streptococcus lactis를 제외한 4균주의 산생성이 $121^{\circ}C-1$분에서 가장 높았다. 그러나 생균수는 가열 처리로 큰 변화가 없었다. 대두젖산균 음료의 관능성에 미치는 영향을 보면 $95^{\circ}C-30$분 시료의 관능 성은 표준시료보다 현저하게 우수하였으나 $121^{\circ}C-15$분 시료의 관능성은 표준시료보다 현저하게 저조하였다. 한편 두유의 가열처리로 대두젖산균 음료의 침전이 지연디는 경향을 보였으며 특히 $121^{\circ}C-15$분의 가여로 침전이 현저하게 지연되었다.

• 한국식품과학회지
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• 제43권2호
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• pp.206-212
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• 2011

막걸리는 고려시대 이후 제조된 우리나라 전통술이다. 본 연구는 막걸리의 유기산 분석과 생리 기능활성을 평가하고자 수행하였다. 막걸리의 유기산 분석 결과, 막걸리는 유기산 중에서 유산균에 의한 대사 산물인 lactic acid를 가장 많이 함유하고 있었으며 시판 막걸리에 따라 다양한 유기산 조성을 나타내고 있었다. 막걸리의 항비만 효과를 전지방세포인 3T3-L1 세포주를 사용하여 평가한 결과, 대조군 대비 막걸리는 전지방세포 분화를 저해하였으며, 특히 $100{\mu}g/mL$의 농도에서 40-70% 수준으로 분화를 억제하였다. 또한 혈관신생 억제 효과와 항염증 활성을 관찰하기 위하여, 각각 CAM assay와 LPS를 처리하여 염증반응을 유발한 murine macrophage RAW264.7 세포주에서 NO를 정량하였다. 그 결과, 대부분의 막걸리는 50% 이상의 혈관신생 억제 효과를 확인하였다. 또한 농도의존적으로 NO의 생성량을 유의적 수준으로 저해하였다. 이런 결과를 종합할 때, 막걸리는 항비만, 혈관신생 억제, 그리고 항염증 활성을 가지고 있으며, 이는 막걸리의 누룩미생물 균총의 2차 대사산물의 효과에 기인한다고 생각된다.