• 한국식생활문화학회지
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• 제6권4호
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• pp.351-367
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• 1991

This research was attempted to investigate the correlation between food habits as well as preferences and health conditions of middle-aged people. 380 people living in Dae-gu, kimch$\breve{o}$n and k$\breve{u}$mr$\breve{u}$ng gun in the 40's or 50's were selected for this research as subjects from July 1 to August 15, 1990. The data analysis was made by way of frequency, percentage, ${\chi}^2-test$ and Pearson correlation using SAS package. The summarized results are as follows. 1. Among the total subjects of this research, 200 people (52.6%) were male and 180 people (47.4%) were female. The regional distribution was like this; 115 people (30.3%) lived in large city, 154 people (40.5%) in small and medium city and 111 people (29.2%) in rural region. 2. The survey on food life attitude on the subjects showed that they had a relatively good attitude, and there were little significant differences (p<.05) between men and women. But there were significant differences (p<.001) between rural region and city. 3. On the preferences for taste, food and cooked food the subjects showed the lowest preferences for processed milk-fat food and the highest for soybean and processed soybean food. 4. The research on health condition 1) 30.8% of the subjects were obesity. And this research showed that the percentage of obesity was higher among men (33.5%) than women (27.8%), and higher in cities (40.4, 34.4%) than rural region (16.2%), (p<.05, p<.01). 2) 90.8% of the subjects showed negative according to Diabetes inspection. 3) 2.0% of the subjects were hypertensive, and the percentage was higher among women than men, and higher in rural region than cities. 4) 12.6% of the subjects were anemia, and the percentage was higher among women (17.8%) than men (8.0%), and higher in rural region (23.4%) than cities (7.0, 9.1%). 5) DMFT index and DMF rate of dental caries was higher among women (DMFT index; 10.6 DMF rate; 88.9) than men (DMFT index; 7.3 DMF rate; 81.5), and higher in rural region (DMFT index; 11.8 DMF rate; 90.1) than cities (DMFT index; 7.4, 7.9 DMF rate; 79.1, 85.7). 6) According to the survey on self-diagnosed health status of subjects, the percentages of articular·neuralgia (48.9%) was the highest. And that of stomach digestion troubles (31.1%), headache (22.4%), anxiety excitement (12.9%), spastic constipation (12.4%), insomnia (9.7%), melancholia (7.9%) and etc (1.6%) followed. 7) People had allergied food which contained animal protein such as pork, chicken, mackerel, siakworm pupa, clam and so on. 8) In female cases, 46.7% of women became already menopausal and 13.3% of them was under menopause. 5. This research showed that there were significant correlation between food life attitude and health condition in obesity, anemia and dental caries but not in blood pressure. 6. And this research also showed that there were significant correlations between food preference and health condition in obesity, anemia and dental caries but not in blood pressure.

• Asian-Australasian Journal of Animal Sciences
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• 제18권10호
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• pp.1425-1429
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• 2005

Megaspahera elsdenii YJ-4, which was previously isolated as a producer of trans-10, cis-12 CLA, was studied for its carbon source on the CLA production. M. elsdenii YJ-4, was incubated with glucose and lactose, and cultured in batch and continuous culture systems with linoleic acid at various pHs to investigate CLA production. Batch cultures of the ruminal bacterium, M. elsdenii YJ-4, were resistant to stearic acid and linoleic acid, and little growth inhibition was observed even when the fatty acid concentration in the culture was as much as 4 mg $ml^{-1}$. Stationary phase batch cultures (0.25 mg bacterial protein $ml^{-1}$) that had been grown on lactate and incubated with linoleic acid (0.20 mg $ml^{-1}$) produced approximately 12 ${\mu}g$ trans-10, cis-12 CLA mg $protein^{-1}$ and little cis-9, trans-11 CLA was detected. Some linoleic acid was converted to hydrogenated products (chiefly stearic acid), but these fatty acids were less than 5 ${\mu}g$ mg bacterial $protein^{-1}$. Stationary phase batch cultures that had been grown on glucose produced at least 3-fold less trans-10, cis-12 CLA than ones grown on lactate. Cells from lactate-limited continuous cultures produced less trans-10, cis-12 CLA than those from batch culture, but only if the pH was greater than 6.4. When the pH of the lactate-limited continuous cultures was lower than 6.4, trans-10, cis-12 CLA and hydrogenated products declined. Cells from glucose-limited continuous cultures produced less trans-10, cis-12 CLA and hydrogenated products than the cells that had been limited by lactate, but pH had little impact on this production. These results support the idea that M. elsdenii YJ-4 could be one of the major producers of trans-10, cis-12 CLA which causes cows to produce milk with a low fat content.

• Journal of Nutrition and Health
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• 제44권2호
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• pp.152-161
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• 2011

Koreans have undergone many changes in dietary patterns with economic growth. The purpose of this research was to examine changes in dietary patterns using data from the 1998, 2001, and 2005 Korean National Health and Nutrition Examination Survey. The study included 21,525 subjects (8,295 from 1998, 6,880 from 2001, and 6,350 from 2005) who were 20 years or older and who participated in a 24-h diet recall. The percentage energy intake from 22 food groups was calculated, and a cluster analysis was applied to identify dietary patterns. Two dietary patterns emerged; the first pattern was characterized by high intake of white rice, legumes, vegetables, kimchi, and seaweeds, the so-called "traditional" pattern (53%), whereas the other pattern was characterized by high intake of other grains, noodle dumplings, floured bread, pizza, hamburgers, cereals and snacks, potatoes, sugared sweets, nuts, fruits, meat·its products, eggs, fish, milk and dairy products, oils, beverages and seasoning, or the so-called "modified" pattern. The modified pattern comprised a higher proportion of younger aged, metropolitan residents with more education and higher incomes. However, the gender distribution was not significantly different. The modified pattern had a significantly higher intake of all nutrients except carbohydrates and had a higher proportion of energy from fat and protein. No association with a risk for metabolic syndrome was found for either dietary pattern. After age was standardized, the traditional pattern included 52% of the respondents in 1998, 54% in 2001, and 50% in 2005. However, the modified pattern was significantly more prevalent in the younger age group (20-29 yr), whereas the traditional pattern increased significantly in the older age group (${\geq}$ 65 yr). In conclusion, a secular trend was found for dietary pattern by age group, suggesting that it is necessary to monitor the changes in dietary pattern by age group and to develop appropriate dietary education and guidelines.

• Journal of Nutrition and Health
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• 제31권1호
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• pp.46-61
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• 1998

This study was carried out to evaluate the effects of vitamin D nutritional status on bone mineral density of adults (21-49 years). To attain the aim, we measured bone mineral density (BMD) of the subjects at distal radius by single-photon absorptiometry (SPA). Serum level of 25-hydroxyvitamin D(25-(OH)D) , known to be the best indicator of indicator of vitamin D status in humans was analyzed . The factors affecting this vitamin D level were also investigated in autumn in 122 young adults. Serum level of 25-(OH)D was measured by high pressure liquid chromatography(HPLC) and biochemical variables, general health status, time spent outdoors, and dietary intakes of the subjects. BMD of the male subjects was significantly greater than that of female subjects. Weight, activity and total energy expediture (TEE) showed a positive correlation with distal BMD. The mean level of serum 25-(OH)D was 24.4$\pm$11.0 ng./ml and by sex, 26.0$\pm$6.8ng/ml for males and 23.3$\pm$12.3ng/ml for females , the level was significantly higher in male (p<0.01). there was significant correlation between BMD at distal-radius and s-25(OH)D levels (p<0.001). The serum level fo parathyroid hormone (PTH) showed a negative correlation with BMD(p<0.05), with the more obvious correlation in females. Vitamin D intake was estimated to be 3.75$\pm$2.19ug/day in average. Among the nutrients studied, protein ,fat, calcium , and vitamin D intake were positively correlated with distal BMD. When food frequencies were concerned , milk and dairy products showed a significant positive correlation with the BMD level, and driedfoods, eggs , fats and oils, and cereals also showed a positive correlation. Time spent outdoors was estimated to be about 70 minutes in average and positively correlated with the distal BMD level(p<0.01). During the day, the specific time between 12 :00pm and 2:00pm showed the most significant correlation with BMD (p<0.001). Multiple regression analysis with the variables showed that distal BMD could be fit 31.9% by the time spent outdoors a day, intake of Ca and vitamin D, and TEE. The standardized estimates were 0.344 for vitamin D intake, 0.284 for Ca intake 0.179 for the time spent outdoors a day and 0.273 for TEE. For males, s-25*OH)D level, TEE and time spent outdoors during a day showed a significant correlation. For females, intake of Ca and vitamin D could fit about 27.1% of the distal BMD.

• Journal of Nutrition and Health
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• 제6권2호
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• pp.25-33
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• 1973

With the object of the study id every possible correlation between daily food intake and growth rate of primary school students, aged eleven years old, the author distributed prepared questionnaires through 200 children of 5th grade in both sexes in K private primary school, Seoul. Specific object of this study were included following three points: such as daily food intake records for six days. daily food intake records for six days. school records of sample children at the end of 4th grade. physical growth index calculated by means of weight and height of sample children at the first part of the 5th grade. CR. t. F. test as well as percentage calculations were included for statistical analysis. The result of this study were as follows: 1. For the living circumstances a) Average numbers of brother and sister in sampled family were two to three. b) Approximately 50%of the children were brought up by mother's milk at their infants and about 35% of children were weaned at the age of 7 to 12 months. c) Thirty to forty percent of the respondents revealed irregulity in their meal time due to early school time in the morning. d) Monthly average expenditure for daily food reached 20 to 29% out of total income. e) The most favorit foods reflect as follows: The most favorit main dish is boiled rice mixed with other careals and side dish beaf. Fruits and juice are more popular snack among whole children. 2. Nutrition survey a) The calcium and thiamine were the most limited factors out of daily nutrients consumption. b) The total calory intake were composed of carbohydrate 63%, protein 16% and fat 21% respectively. c) The total food intake were composed of 20 to 24% of animal source of foods and 76 to 80% of plant source of foods (vegetables, grains, fruits) d) The total protein intake were composed of 46% of animal protein and 54% of others. e) The grain stuffs consumed in the largest quantity at the level of 50% out whole food groups. f) Twenty four percent of total food intake came from snack between meal time. 3. The result of statistical analysis were as follows: a) The correlation between the calory intake and plysical growth index revealed statistical significancy at the level of p<0.001. b) The correlation between the protein intake and physical growth index revealed statistical significancy at the level of p<0.001. c) The correlation between the meal time and physical growth index revealed statistical significancy at the level of 0.02

• Journal of Nutrition and Health
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• 제53권4호
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• pp.406-415
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• 2020

본 연구는 2013-2017년 국민건강영양조사 자료를 이용하여 만 19-64세 성인 남녀를 대상으로 채소·과일 섭취에 따른 일반적 사항과 식품 및 영양소 섭취 상태를 파악하고 채소·과일의 섭취와 천식 유병률의 관련성을 알아보고자 시행되었다. 전체 대상자의 천식 유병률은 2.6% 이었고, 채소·과일의 섭취량에 따라 1.8%-3.1%로 나타났다. 채소·과일 섭취량이 많을수록 평균 연령과 가구소득은 높았고 교육수준은 낮았으며, 흡연자의 비율과 알코올 섭취 빈도도 낮았다. 채소·과일의 섭취량이 많은 군이 우유 및 유제품을 제외한 모든 식품군의 섭취량이 많았고, 에너지를 포함한 영양소의 섭취량도 많았다. 열량영양소의 섭취비율의 경우, 채소·과일의 섭취량이 많은 군이 적은 군에 비해 탄수화물과 단백질의 섭취비율은 높고, 지방의 섭취비율은 낮았다. 채소와 과일 섭취량에 따른 3사분위군의 천식에 대한 위험도는 최하위 사분위군 대비 각각 35%, 40%까지 감소하였다. 그러나 최상위 사분위군의 경우, 최하위 사분위군과 비교하여 천식에 대한 위험도가 유의하게 감소하지 않았다. 이러한 결과를 통하여 권장량 수준의 적절한 채소·과일의 섭취가 천식을 예방 및 관리하는데 도움이 될 것이라 생각된다. 또한 채소·과일의 섭취가 천식의 발생과 치료효과에 미치는 영향을 파악하기 위해 장기간의 코호트 연구와 임상시험 연구가 필요할 것으로 생각된다.

• 한국미생물·생명공학회지
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• 제14권5호
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• pp.421-426
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• 1986

Lactobacillus casei YIT9018은 국내의 발효유제조에 널리 사용되고 있으며, 이에 대한 효과적인 동결건조 방법을 확립하기 위하여 glycine과 glutamic acid를 함유한 amino산 혼합액을 기본 현탁 배지로 사용하여 동결건조 및 rehydration을 실시하고 그 효과를 기존의 보호제들과 비교하였다. 아미노산 혼합액은 대조구에 비해서 현저한 동결보호 효과를 가지고 있었다. 또 glycine과 DL-glutamic acid는 단독 사용시보다 혼합할 경우 더욱 효과적이었으며 이때의 최적농도는 0.1M이었다. L. casei YIT9018주는 MRS 배지상에서 접종후 18시간만에 정상기에 들어갔으며 24시간 후에는 최대생육을 나타냈다. 또 이 24시간 균체가 동결건조에 대하여 가장 저항성이 큰 것으로 판명되었다. 아미노산 혼합액에 sucrose, lactose등의 이당류 및 NF-MS를 첨가하면 85％ 이상의 높은 생존율을 기대할 수 있으며, 최적농도는 당류의 경우 7.5-10％(w/v), NFMS의 경우는 10％정도였다. 이상의 결과로 보아 동결후의 생존율을 높이고 활력을 유지하기 위해서는 아미노산 혼합액에 NFMS의 첨가가 바람직하다고 생각되었다. 한편, rehydration media에 따라서도 생존율이 변하였는데 아미노산 혼합액은 대조구에 비해 약 3배의 동결 보호효과를 나타냈다.

• Journal of Nutrition and Health
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• 제29권8호
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• pp.849-860
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• 1996

The supply of different fatty acids during the development period has significant effects. This study examined the effects of dietary $\omega$3 and $\omega$6 fatty acid compositions on phospholipids (PLs) of RBC and rat brain subcellular fractions (synaptosome, microsome, mitochondria), and on learning ability of the 2nd generation rat. Rats were fed experimental diets 3-4 wks prior to the conception. Early in the lactation period, the feeding mothers were exchanged. Diets consisted of 10% fat(by weight), which was either safflower oil('S') poor in $\omega$3 fatty acids or computer-searched mixed oil('M') with P/M/S ratio, 1/1.4/1 and $\omega$6/$\omega$3 ratio, 6.1/1. The 'S' and 'M' rats were subdivided further into SS, SM, MS & MM rats according to their lactation stauts. At 3 (weaning) & 9 wks of age, the percentage of total $\omega$3 fatty acids to their lactation status. At 3 (weaning) & 9 wks of age, the percentage of total $\omega$3 fatty acids and the ratios of $\omega$3/$\omega$6 fatty acids in PLs of RBC and brain subcellular fractions in SM and MM groups fed milk from the mixed oil-fed mothers for 2 wks tended to be higher than those in SS and MS groups respectively. In contrast, the concentrations of $\omega$6 fatty acids, especially 22:5$\omega$6 in all fractions, were significantly lower in the SM & MM groups compared to those of the SS & MS groups respectively. In contrast, the concentration of $\omega$6 fatty acids, especially 22:5$\omega$6 in all fractions, were significantly lower in the SM & MM groups compared to those of the SS & MS groups, The values for the DHA$\omega$3/22:5$\omega$6 ratios after the lactation period were markedly higher in the groups (SM & MM) which were reared by mixed oil(MO) fed mothers. In carring out Y-water maze at 9th wk of age, the SM(4.2$\pm$0.5) & MM (5.3$\pm$0.5) groups made significantly less errors compared to the SS(6.2$\pm$0.6, p<0.05 compared with SM) & MM (7.2$\pm$0.5, p<0.05 compared with MM) groups which were lactated by the safflower oilfed mothers. Therefore, by feeding a balanced fatty acid diet from the lactation period up to 9 wks of age as compared with the groups fed $\omega$3 fatty acid-deficient diet regardless of mother's diet given before parturition. The levels of DHA(synaptosome) and 22:5$\omega$3 (mitochondria) were positively correlated not only with these values in RBC but also with visual discriminating ability. The levels of DHA and 22:5$\omega$3 in RBC can, therfore, reflect visual discriminatng ability in the rat.

• 농업과학연구
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• 제11권2호
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• pp.244-251
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• 1984

유산균(乳酸菌)의 발육(發育)에 미치는 홍삼(紅蔘) extract의 영향을 구명하기 위하여 조성분(組成分)이 수분(水分) 68.14%, 조단백질(粗蛋白質) 10.11%, 조지방(粗脂肪) 2.66%, 조회분(粗灰分) 5.23%, 총당(總糖) 56.90%, 환원당(還元糖) 18.80%, 총(總) Saponin이 9.09 %인 홍삼(紅蔘) extract를 고지유배지(股脂乳培地)에 0~10.0%를 첨가(添加)하고 유산발효(乳酸醱酵)에 미치는 영향과 배양중(培養中)의 세균(細菌)의 증식상태(增殖狀態)를 조사한 결과는 다음과 같다. 1. 발효중(醱酵中) 유산균(乳酸菌)의 산생성도(酸生成度)는 Str. lactis와 L. acidophilus에 있어서는 홍삼(紅蔘) extract 첨가구(添加區)가 Control구 보다 높고 L. helveticus에 있어서는 효과(效果)가 적었으며 Str. lactis 및 L. acidophilus에 있어서는 홍삼(紅蔘) extract의 증량(增量)에 따라 발효시간(醱酵時間)이 단축되었다. 2. 홍삼(紅蔘) extract 첨가량(添加量)의 증가(增加)에 따라 최종산도(最終酸度)가 상승하였으며 이와 같은 현상은 Str. lactis와 L. acidophilus에서 현저하였다. 3. 유산균수(乳酸菌數)는 홍삼(紅蔘) extract의 함량(含量) 증가(增加)에 따라 1.0%까지는 증가되었으나 그 이상의 첨가구(添加區)에서는 별로 증가되지 않았다.

• 대한지역사회영양학회지
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• 제7권6호
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• pp.833-843
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• 2002

This study was carried out to investigate the effect of hygiene education on the microbiological changes of processing utensils and the environmental in the manufacture of cereals and to evaluate the Cd, Pb contents and nutrient compositions of 11 cereals. The result of microbiological evaluation was that fungi, coliforms and staphylococcus species were detected in employees, on equipment, utensils and environments in the first inspection. Fungi were detected in most of the cereals, staphylococcus species were detected in soybeans, perilla seeds and sea tangle How, and bacillus cereus was detected in sorghum and black sesame seeds. The water content of rice, barley, glutinous rice, brown rice and carrot flour in packaged products, and in carrot flour, angelica keiskei, carrot, sea mustard and potato in bulk products was in excess of 8.0%. The Pb content of cereals was 0.14-0.51 mg/kg and Cd was not found. The acid value of Job s tears flour and black sesame seed flour was higher than 5.0 mg/g oil. Cereals were manufactured from 41 different cereals and grains, legumes, seeds and nuts, vegetables, potatoes, seaweeds, fruits, glucose and salt. The average content of cereals and grains, legumes, and seeds and nuts in cereals was 75.75%, 16.19% and 4.93%, respectively. The mean nutrient content per 100 g of cereals was calories 365.8kcal, protein 13.3 g, fats 5.9 g, carbohydrates 63.4 g, Ca 91.8 mg, p 269.9 mg, Fe 3.15 mg, Na 76.2 g, K 421.8 mg, Zn 2.33 mg, Vit. A 12.5 R.E., Vit. B$_1$0.23 mg, Vit. $B_2$ 0.16 mg, Vit. $B_6$ 0.46 mg, Niacin 3.5 mg, Vit. C 1.36 mg, folic acid 62.3 $\mu$g and Vit. E 1.24 mg. When nutrients value of 48 g of cereals and 200 $m\ell$l of milk was compared to 1/3 of the RDA, the values were below than 60% of 1/3 of the RDA except Na, K, Vitamin $B_1$ and C contents. The average carbohydrate : protein : fat ratio of energy intake was 54.27 : 17.45 : 28.28, respectively. Therefore, a training program consisting of the education of the staff in surveillance and standard operating procedures, the elimination of dangerous procedures, sanitation checklist, the implementation of Preparation methods and standard recipes for cereals is required.