In this study, we analyzed the biochemical factors in lotus (Nelumbo nucifera) leaf, stem, and yeonjabang and their effects on serum factor levels in mice fed a high-fat (HF) diet. The loutus leaf showed 9.47±0.30% moisture content, 8.25±0.39% ash, 21.45±1.25% crude protein, and 2.21±0.13% crude fat content; the lotus stem showed 11.84±0.43% moisture, 10.21±0.64% ash, 17.55±0.92% crude protein, and 4.16±0.23% crude fat content; and the lotus yeonjabang showed 11.86±0.50% moisture, 6.81±0.51% ash, 18.71±1.02% crude protein, and 3.95±0.15% crude fat. Blood triglyceride levels were higher in the HF group (146.43±38.81 mg/dL), and lower in the HF+yeonjabang groups (98.00±17.18 mg/dL). In particular, blood triglyceride levels were significantly lower in the groups that had 10% dry yeonjabang powder added to the high-fat diet. The inclusion of excessive high-fat diet increased concentrations of serum insulin and leptin. Serum leptin concentrations were highest in the HF group mice (3.00±1.35 ng/dL), whereas they were significantly lower in the HF+yeonjabang groups by 1.34±0.52 ng/dL (p<0.05). Thus, addition of dry yeonjabang powder to the high-fat diet was more effective in regulating the levels of serum triglycerides and leptin in mice. Additional studies would help in the development of yeonjabang as a functional food.

In this study, we determined the effect of the mulberry leaf powder on blood lipid metabolism and liver function improvement of mice fed a high fat diet. The mulberry leaf showed a moisture content of 10.74±0.56%, ash 9.67±0.56%, crude protein 25.24±1.02%, and crude fat 2.66±0.08%. In the group with high fat diet supplemented with mulberry leaf powder, serum low-density lipoprotein (LDL-cholesterol) and total cholesterol levels were significantly lower (p<0.05); also, serum phospholipid and aspartate amino transferase (AST) levels were significantly lower (p<0.05). Serum insulin and leptin levels were high in mice fed a high fat diet; however, addition of mulberry leaf powder 10% in the diet had no significant effect on blood insulin and leptin control. The results of the study suggested that various plant sterols in mulberry leaf improve lipid metabolism and liver function in ICR-mice.

This study analyzed the antioxidant properties of Equisetum arvense and its effects on serum factor levels in mice fed a high-fat diet. The aim was to establish a new effective resource for biologically active materials. E. arvense stem and root extracts were obtained using deionized water at 95℃, and 70.5% ethanol at 85℃. These extracts were used to analyze the total phenolic compounds and antioxidant (ABTS, DDPH, and FRAP) activities. The effects of prepared ground samples were evaluated by feeding them to mice. E. arvense extracts showed strong antioxidant effects. The caffeic acid content was highest in the 70.5% ethanol extract of the vegetative stem, as determined by high-performance liquid chromatography. The blood concentrations of insulin and leptin were significantly lower in mice fed a high-fat diet supplemented with extracts of the root, reproductive stem, and vegetative stem of E. arvense than in mice fed only a high-fat diet. These results suggest that the polyphenolic compounds in E. arvense extracts exert various antioxidant effects. The stems and root of E. arvense can lower the blood levels of insulin and leptin, even after consumption of a high-fat diet.

Taurine is an abundant amino acid in many animals, including humans. Relatively large amounts of taurine are found in leukocytes, heart, muscles, retinas, kidneys, bones, and liver. Taurine has antioxidant effects; it reacts with hydrogen peroxide to prevent oxidation of the cell membrane. Taurine enhances the effects of anticancer drugs, while also reducing side effects, and taurolidine, a taurine derivative, has been shown to exhibit anti-cancer effects without notable side effects in several types of cancer. Taurine aids in cholesterol metabolism by increasing the rate of synthesis of bile acids, and, thus, reduces triglyceride levels. In addition, taurine is involved in the growth and differentiation of nerve cells and is associated with some neurological disorders. Taurine aids in bone formation and prevents bone dissolution. Moreover, taurine prevents liver damage from a variety of drugs and, thus, protects the liver. Taurine is involved in the development and function of the retina and lens. It also has anti-atherosclerotic and anti-thrombotic effects that protect against cardiovascular disease. Taurine may have additional physiological functions, and warrants further investigation.

Taurine is one of the most abundant free β-amino acids in the human body that accounts for 0.1% of the human body weight. It has a sulfonic acid group in place of the more common carboxylic acid group. Mollusks and meat are the major dietary source of taurine, and mother`s milks also include high levels of this amino acid. The leukocytes, heart, muscle, retina, kidney, bone, and brain contain more taurine than other organs. Furthermore, taurine can be synthesized in the brain and liver from cysteine. There are no side effects of excessive taurine intake in humans; however, in case of taurine deficiency, retinal abnormalities, reduced plasma taurine concentration, and other abnormalities may occur. Taurine enters the cell via a cell membrane receptor. It is excreted in the urine (approximately 95%) and feces (approximately 5%). Taurine has a number of features and functions, including conjugation with bile acid, reduction of blood cholesterol and triglyceride levels, promotion of neuron cell differentiation and growth, antioxidant effects, maintenance of cell membrane stability, retinal development, energy generation, depressant effects, regulation of calcium level, muscle contraction and relaxation, bone formation, anti-inflammatory effects, anti-cancer and anti-atherogenic effects, and osmotic pressure control. However, the properties, functions, and effects of taurine require further studies in future.

This study was conducted to verify the effects of Erigeron annuus powder on serum lipid levels of high-fat diet-induced mice from a nutritional viewpoint. Erigeron annuus powder has been used as a folk remedy since ancient times in Korea. There was no significant difference in the weight of the kidneys and spleens of the mice. The high-fat diet group had a significantly higher kidney weight compared to other groups (p<0.05). In the group of mice fed 20% Erigeron annuus powder with a high-fat diet, the concentration of serum LDL-cholesterol was high (p<0.05), whereas the concentration of triglyceride was remarkably lower compared to other groups (p<0.05). The group fed 10% Erigeron annuus with a high-fat diet had the lowest concentration of blood phospholipids (p<0.05) as well as the highest alkaline phosphatase and alanine aminotransferase levels in blood (p<0.05). There was no difference in blood insulin concentration. However, blood leptin concentration was significantly higher (5.88±3.53 ng/dL) in mice fed a high-fat diet compared to other groups (p<0.05). Measurements of Erigeron annuus revealed that TPC, ABTS+ radical scavenging activity of trolox, DPPH radical scavenging activity, and the measured value of FRAP were higher in the ethanol extract than in the water extract. Especially, the antioxidant activity effects were excellent for the ABTS+ radical scavenging activities of trolox and FRAP values of Erigeron annuus. Therefore, Erigeron annuus powder showed antioxidant activity. Hence, Erigeron annuus powder drastically lessened triglyceride concentration in blood in high-fat diet-induced mice. Thus, the powder is considered to have utility in the food processing industry. Additional related experiments are ongoing.

Since Korean ancient times, powder of Rosa rugosa Thunberg has been used as a folk remedy. This study was conducted to verify the effects of Rosa rugosa Thunberg powder on in vitro antioxidant properties and serum lipid levels of high-fat diet-induced mice from a nutritional viewpoint. In the case of Rosa rugosa Thunberg powders, measurement of TPC, ABTS radical scavenging activity of trolox, DPPH radical scavenging activity, and measured value of FRAP were higher in ethanol extract than water extracts. For LDL-cholesterol concentration, mice fed 10% powder of Rosa rugosa Thunberg with high-fat diets showed a high numerical value compared with other groups (p<0.05). When testing for triglyceride concentrations in blood, mice fed 10% and 20% powder of Rosa rugosa Thunberg with high-fat diets showed the lowest numerical values (p<0.05). When testing for blood insulin concentrations, the high-fat diet group showed higher levels than compared to the control group (p<0.05). When testing for blood leptin concentrations, the high-fat diet group was 5.88±3.53 ng/dL, whereas mice fed 10% powder of Rosa rugosa Thunberg with high-fat diets showed a blood leptin level of 10.36±5.96 ng/dL (p<0.05). Therefore, results prove that powder of Rosa rugosa Thunberg reduces triglyceride concentrations in the blood, and could be used as an excellent natural antioxidant in the future.

우리나라 밀 품종 중 농가에서 많이 재배되고 있는 금강밀품종에 대하여 출수기 및 수량의 안정성을 전·답리작별 각 4개 지역에서 검정한 결과를 요약하면 아래와 같다. 1. 금강밀 품종의 평균출수기는 전작재배에서 대구가 4월 26 일로 가장 빠르고, 대전 및 청주가 각각 5월 2일, 5월 3일이 며, 수원이 5월 9일로 늦었다. 답리작재배에서는 나주가 4월 27일로 빠르고 진주, 밀양이 4월 28 ~ 29일, 익산이 5월 3일로 늦었다. Fig. 1. Regression coefficient of the wheat yield and environment index at four locations in cultivated upland in wheat variety “Keumkangmil”. Fig. 2. Regression coefficient of the wheat yield and environment index at four locations in cultivated paddy in wheat variety “Keumkangmil”. Fig. 3. The relationship of regression coefficients and mean yield in cultivated upland and paddy at four locations in wheat variety “Keumkangm 2. 10 a당 평균수량은 전작 530 kg, 답리작 417 kg으로서 전작에서 답리작보다 27% 증수되었으며, 전작재배에서는 수원 및 청주에서 평균수량 대비 각각 7%, 3% 증수하였으나, 대구는 11% 감수, 대전은 비슷한 경향을 보였다. 답리작재배에서 는 밀양에서 7% 증수된 반면, 나주는 4% 감수하였다. 3. 평균 m2당수수는 답리작에서 평균 751개로 전작의 656개보다 95개 많았으며, 지역별로는 거의 비슷한 경향을 보였다. 4. 평균 1수립수는 답리작에서 32립으로 전작의 25립보다 7립 정도 많고, 평균 천립중은 전작 47.9 g으로 답리작 45.3 g 과 비슷하였다. 5. Stroike and Johnson의 모델을 분석한 결과, 금강밀 품종의 환경지수는 −61에서 +35 미만으로서 환경 차이가 매우 작아 전 지역에서 안정적이며, 지역별 회귀계수는 수원, 청주, 대전 그리고 답리작의 밀양, 진주에서 1미만이고 표준편차평방화 값도 작어 평균 이상의 적응지역으로 나타났다. 6. Finlay and Wilkinson의 모델을 이용하여 안정성을 검정한 결과, 전작의 수원, 청주 그리고 답리작의 밀양, 진주가 가장 적응력이 높은 지역인 반면, 전작의 대구 및 답리작의 익산, 나주는 평균 안정성 이하의 지역으로 나타났다.

본 연구는 50~64세의 성인 남자를 대상으로 설문지를 통 해 일반사항, 건강관심도, 흡연 습관, 식습관 조사, 식생활 평 가 및 영양소 섭취 상태를 조사하였다. 1. 직업의 종류로는 비흡연군는 전문직, 흡연군의 경우는 영업직이 가장 많은 비율을 차지하였다(p<0.05). 한 달 수입 은 조사 대상자의 29.8%가 500만원 이상이라고 답하였으며, 한 달 용돈은 전체 조사 대상자의 58.7%가 20만원 이상이라 고 답하였다. 2. 흡연군(42.0%)은 비흡연군(67.2%)에 비해 건강에 대한 관심도가 낮았으며, 운동을 하는 비율(비흡연군의 85.9%, 흡 연군의 50.0%)도 낮게 조사되었다. 3. 흡연 습관을 보면, 흡연은 처음 군대에서 호기심으로 시 작한 비율이 높았으며, 하루에 흡연량은 10개피 이상 피는 비 율이 68.0%로 조사되었다. 흡연자의 88.0%는 금연을 시도한 적이 있지만, 대부분 의지 부족(62.0%)으로 실패했다고 응답 하였다. 4. 흡연군에서는 고지방 육류를 일주일에 두 번 이상 섭취 하는 비율이 높았으며, 비흡연군의 경우 54.7%는 고지방 육 류 섭취를 하지 않는 것으로 조사되었다(p<0.01). 비흡연군이 흡연군에 비해 세끼 식사를 규칙적으로 하는 것으로 조사되 었다. 5. 흡연군과 비흡연군에서 비타민 B2, 엽산 및 칼슘의 섭취 가 한국인영양섭취기준(2010)보다 매우 낮았다. 그러나 조사 한 영양소 중 나트륨의 섭취량은 두 군 모두에서 기준치(2010) 의 3배 이상을 섭취하는 것으로 조사되었다. 이상의 연구결과를 종합해 보면, 흡연군에 비해 비흡연군 에서 건강의 관심도가 높았으며, 고지방 육류의 섭취비율이 낮았고, 세 끼 식사를 규칙적으로 하는 것으로 조사되었다. 그러나 흡연군은 건강에 대한 관심도가 낮았고, 운동하는 비 율도 낮게 조사되었으며, 고지방 육류를 일주일에 두 번 이상 섭취하는 비율이 높았다. 영양소 섭취 상태에서는 두 군 모두 에서 비타민 B2, 엽산 및 칼슘의 섭취가 낮았고, 나트륨은 과 잉 섭취하는 것으로 조사되었다. 따라서 흡연자의 경우에는 육류의 섭취를 줄이고, 항산화 물질이 많이 함유한 과일이나 채소의 섭취를 늘리도록 유도해야 하며, 저염식을 위한 영양 교육이 실시되어야 할 것이다.

본 연구는 ICR-mouse를 실험군당 5마리를 공시하여 식이에 산벚나무 씨앗 기름 및 옥수수 기름을 첨가하여 배합한 사료의 섭취가 쥐의 혈중 지질 수준에 미치는 영향을 비교․ 분석하였다. 1. 산벚나무 씨앗에는 palmitic acid, oleic acid 및 linoleic acid 등이 함유되어 있으며, linolenic acid와 erucic acid가 소량 함유되어 있다. 2. 산벚나무 씨앗 기름의 항산화 값(DPPH)은 4.63%로 나 타났으며, 신장의 무게는 다른 두 군에 비해 산벚나무 씨앗 기름을 섭취한 군(1.24±0.22 g)에서 유의적으로 높았다(p<0.05). 3. 산벚나무 씨앗 기름을 섭취한 군에서 HDL-cholesterol 농 도는 가장 높았으며, 혈중 LDL-cholesterol 농도는 가장 낮았 다(p<0.05). 이상의 결과를 정리해 보면, 산벚나무의 씨앗 기름의 지방 산 조성은 다른 식물성 씨앗 등의 지방산 조성과 큰 차이가 없었으며, 혈중의 HDL-cholesterol 농도를 높여주는 반면에, LDL-cholesterol 농도는 낮추어 주는 것으로 나타났다. 따라서 산벚나무의 씨앗 기름을 현재 유지 자원으로 사용되고 있는 참깨나 들깨와 같이 식용유지 자원으로 개발하기 위해서는 Choi 등(2012)의 연구에서 지적했듯이 씨앗 기름의 항산화 효과, 산패 진행 정도 및 인체에 미치는 영향 등의 지속적인 연구가 이루어져야 한다고 사료된다.

This study is conducted to compare the problems affecting dietary habits and health status between a long-term exercise group and non-exercise group of males older than 50 years. Most subjects of the two groups consider regular exercise to be the most important factor for maintaining health, and recognize hypertension as the number one concern. The most common nutritional supplement among subjects is multiple vitamins, and sleeping time range from 6~8 hours. Breakfast fasting rate was 15.9% among non-exercise group (NEG), where overeating and eating out rates were higher among exercise group (EG) when comparing to NEG. Fasting rates of breakfast, and consumption rates of milk and dairy products, vegetables such as kimchi, and fruits and fruit juices are higher among the EG. Overeating and eating out rates are lower among NEG, whereas eating rates of proteins like meat, fish, eggs, beans, fried foods, high-fat meats carbonated drinks, ice cream, and salt intakes are higher. Rates of health, dietary habits, and nutrient intakes are higher among EG. Energy intakes among the two groups were below the standard level, Vitamin B2 intake is low in EG, and folic acid and calcium intakes were higher in NEG. The exercising group care more about health, eating habits and nutrient intakes, and low smoking rates are being observed. Thus, specific dietary improvement programs for adult men, are required, and it is necessary to consider the practice of nutrition education.

Our objectives in this experiment were to study the effects of oils that are high in contents of unsaturated fatty acids (olive, flaxseed, and perilla oils) and pyroligneous liquor on plasma lipid concentrations in mice. Male ICR-mouse (n=10 per group) were fed powdered form diets containing oil and pyroligneous liquor for 60 days. The cholesterol level of the PP group (96.71±25.75 ㎎/㎗) was lower than that of the COW group (133.56±21.53 ㎎/㎗). Levels of triglyceride of COP, CFP, and CPP groups were 121.10±50.79 ㎎/㎗, 77.80±38.58 ㎎/㎗, and 92.40±33.04 ㎎/㎗, respectively (p<0.05). The dietary addition of olive oil increased the plasma lsevels of cholesterol and LDL-cholesterol. On the other hand, the dietary addition of flaxseed oil and pyroligneous liquor increased the plasma level of HDL-cholesterol and decreased the plasma levels of LDL-cholesterol and triglyceride compared with those of the control group. Further, the dietary addition of perilla oil decreased plasma triglyceride but increased HDL-cholesterol. The decrease in the cholesterol level was much higher in the CFP group. In conclusion, the dietary addition of long-term pyroligneous liquor effectively decreased the plasma levels of cholesterol and triglyceride and increased the plasma level of HDL-cholesterol. The additional dietary administration of flaxseed and perilla oils increased the effect of pyroligneous liquor.

This study was conducted to obtain principal data on nutrition education according to college major after analyzing the nutrition status of 302 male university subjects. The 302 male subjects consisted of male students majoring in literature and science (109), food and nutrition (94), and physical education (99). Exactly 47.9% (highest among the groups) of male students majoring in food and nutrition ate regular meals, 39.4% ate breakfast. Precisely 29.4% of subjects majoring in literature and science never ate out. Exactly 23.2% of subjects majoring in physical education over ate frequently, and 31.3% enjoyed eating out. Intakes of protein, fat, vitamin A, B1, B2, B6, C, E, folic acid, Ca, Fe, sodium, and cholesterol among male students majoring in food and nutrition appeared to be significantly higher compared to those of other groups (p<0.05). Intakes of energy, Zn, dietary fiber, and cholesterol among male students majoring in physical education were higher, whereas intakes of all nutrients except for dietary fiber by subjects majoring in literature and science were lower than the other two groups. Exactly 20.2% of male students were interested in health. We found that 52.4% of subjects considered exercise as an important factor for maintaining health. Smoking rate was the highest (43.6%) among male students majoring in nutrition, and the drinking rate was highest (56.0%) among male students majoring in literature and science. We found that smoking was continued as a habit (61.5%) while drinking was essential for social relationships (73.9%). From this study, it was found that male students have problems associated with eating regular meals, skipping breakfast, overeating, and intake of unbalanced foods. Also, male students who majored in food and nutrition demonstrated problems in applying their knowledge to proper dietary habits. In conclusion, a systemic educational program needs to be introduced to promote healthful dietary habits in male students.

In this study, the effects of intake of Acer mono Max. seed oil, and Magnolia denudata seed oil on the lipid levels of mouse blood were compared to those of commercially available vegetable oils. FiveICR mice were each fed a corn oil, Acer mono Max. seed oil, and Magnolia denudata seed oil supplemented diet for a total of 8 weeks. The serum profiles of mice fed Acer mono Max. seed oil and Magnolia denudata seed oil were high in palmitic acid, oleic acid, and linoleic acid. The saturated fatty acid contents of mice fed Acer mono Max. seed oil and Magnolia denudata seed oil were 3.95% and 0.88%, whereas the unsaturated fatty acid contents were 8.71% and 4.60%, respectively. The liver and spleen weights of mice fed Acer mono Max. seed oil were higher than those fed corn oil (p<0.05). Total cholesterol level was highest in mice fed Acer mono Max. seed oil (p<0.05), whereas there were no significant changes in the cholesterol levels of mice fed Magnolia denudata seed oil and corn oil. The HDL-cholesterol levels in mice fed Acer mono Max. seed oil (175.80±27.66 ㎎/㎗) and in those fed Magnolia denudata seed oil (145.20±19.10 ㎎/㎗) were higher compared to those of mice fed corn oil (p<0.05). In conclusion, there were no significant differences in fatty acid composition between mice fed Acer mono Max. seed oil and Magnolia denudata seed oil. Future study on the antioxidant effects of seed oils should be carried out.

This study focused on the yearly-dietary habits, nutrition status, and health of female students residing in Seoul. A number of classes were assess based on their dietary behaviors in oder to attempt to determine differences in their attitudes to nutrition, according to age. The students of class 2011 (sophomore) ate meals more regularly than the female students of the 2008 class (p<0.05). It was found that sophomore female students of class 2008 consumed higher than average nutrient intake. Sophomore female students of the 2011 class consumed lower than average vitamin B₂, C, Ca, and Fe intakes. Folic acid in take was lower than average in both groups. Phosphorus and sodium intakes in both groups were excessive (p<0.05). When surveyed, sophomore female students of the 2008 class believed that the most important thing for health was exercise, whereas students of class 2011 believed that nutrient intake was the most important factor (p<0.05). Female students of the 2008 class exercised 1～2 times a week generally, whereas students of class 2011 exercised three times (43.2%) (p<0.05). Therefore, it is necessary to study changes in dietary habits and health status according to the age of students, and develop specific nutrition education programs for female students.