• Title/Summary/Keyword: vitamins and minerals

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Pasting and Nutritional Characteristics of Black Rices Harvested in Korea

  • Chung, Hyun-Jung;Lim, Seung-Taik
    • Preventive Nutrition and Food Science
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    • v.4 no.4
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    • pp.231-235
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    • 1999
  • Three black rices(Suwon 415, Iksan 427 and Sanghaehyanghyeolla) harvested in Korea were examined in their pasting characteristics, and minor nutrients(vitamins and minerals) in comparison to those of a brown rice (Dongjinbyo), whereas Iksan 427 and Sanghaehyanghyeolla were waxy rices(0.4 and 0.6%, respectively). Iksan 427 and Sanghaehyanghyeolla showed similar viscosity pattern with significantly low pasting temperatures and viscosity. Brown rice showed higher pasting viscosity and pasting temperature than black rices, and its viscosity pattern was similar to Suwon 415. Brown rice and Suwon 415 displayed higher hardness but lower adhesiveness of their gels. Black rices contained more non-carbohydrate components and dietary fiber than brown rice. From the amino acid analysis, black rices contained more acid amino acids (aspartic and glutamic acids) than brown rice. Among the black rices, Suwon 415 had the highest content of total essential amino acids(4.3%). Black rices also contained higher amounts of vitamin B complexes (thiamin, riboflavin and niacin) and minerals(K, Mg and Ca) than brown rice. Sanghaehyanghyeolla showed an exceptionally high amount of Ca (12mg%).

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Chemical Composition and Bioactivity of Korean Green Tea (Camellia sinensis) Pollen collected by Honey Bee (한국 녹차 화분의 화학적 조성과 기능성 연구)

  • Jang, Jae-Seon
    • The Korean Journal of Food And Nutrition
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    • v.31 no.1
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    • pp.89-93
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    • 2018
  • In this study, we investigated the nutritional composition including proximate, amino acid, vitamin, minerals, and the antioxidant activity of green tea (Camellia sinensis) pollen grains collected by Apis mellifera bees, for use as a health food. The crude protein and fat content was estimated at 26.14% and 3.49%, respectively. Eighteen amino acids were identified in green tea pollen, including 8 essential amino acids and 10 non-essential amino acids. The predominant amino acids were glutamic acid, proline and aspartic acid accounting for about 33.3% of total free amino acids. The concentration of vitamin C was the highest value of 35.7%, followed by $B_3$ and $B_2$ among the detected vitamins. The predominant minerals were potassium (790.32 mg/100g), followed by phosphorus (707.52 mg/100g) and sulfur (302.67 mg/100g), whereas copper, zinc and sodium were detected as minor elements. The antioxidant activity and phenolic content accounted for 33.8% at $500{\mu}g/mL$ extract and $2.55 {\mu}g/mg$, respectively.

A Study on the Constituents of the Pollen of Pinus densiflora Siebol et Zuccarini and Pinus rigida Miller -Proximate Composition, Mineral, Heavy Metal, Vitamin and Free Sugar Contents- (적송화분과 리기다송화분의 성분 조성에 관한 연구 -일반성분, 무기질, 중금속, 비타민, 유리당의 함량-)

  • 김혜자
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.21 no.2
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    • pp.201-206
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    • 1992
  • Pinus pollen is used as the chief ingredient for Song-wha-dashik (Korea's traditional pattern-pressed candy). It has been the food stuff indispensable especially on the occasion of performing ancestral rites and holding a banquet since Shilla and Koryo Dynasty. In this paper, therefore, a new examination is made of the nutritive ingredients of the very Pinus pollen. Analysis has been made of the proximate composition, minerals, heavy metals, vitamins and free sugars of the Pollen of both Pinus densinora Siebol et Zuccarini and Pinus rigida Miller. In the proximate composition, Pinus rigida Miller is high except in free sugar ; crude ash (4.0%), crude protein (15.0%), crude fat (2.5%), crude fiber (17.5%). A lot of minerals have been found in both the samples. They contain Mg, Cl, Ca, Fe, Mn, Na, Zn, etc. In heavy metals, both the samples contain the same quantity of Cd(0.3 ppm) and the contents of Pb, Cu, and As are lower than the maximal limit permitted for food stuff. The contents of vitamin B$_1$, B$_2$, vitamin C are a little higher in Pinus rigida Miller : in vitamin E, on the contrary, Pinus densiflora Siebol et Zucarini (1.6 mg) doubles Pinus rigida Miller (0.8 mg). In free sugars, the results is as follows : 6.6%/6.9% in sucrose : 0.2% in fructose : 2.1% /2.9% in glucose respectively.

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A Comparative Study of Obese Children and Normal Children on Dietary Intake and Environmental Factors at an Elementary School in Inchon (아동비만에 영향을 미치는 일반요인 및 식이섭취 실태에 대한 비만군과 대조군의 비교 연구 -인천시내 초등학교 중심으로-)

  • 이윤주;장경자
    • Korean Journal of Community Nutrition
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    • v.4 no.4
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    • pp.504-511
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    • 1999
  • The purpose of this survey was to investigate the relationship among obese children, dietary intake and environmental factors. Therefore, this survey compared obese children with normal children on dietary intake and environmental factors. The survey were 110 obese children and 110 normal children whose age, height, and sex were same as the obese children of 21 elementary school in Inchon. The statistical analysis of data was completed using SAS program. The results were summarized as follows : 1) The student's obesity was related to parent's obesity and number of their siblings. There were significant differences between obese groups and normal group for these two factors. 2) Meal time of the obese group showed more irregularity than that of the normal group. Otherwise, the normal group were more "piclity" about special food than the obese group(p<0.05). Also obese children showed unconsious eating while reading or watching TV(p<0.01). The normal group attended physical education class more eagerily the obese group(p<0.001). There was no significant difference between obese children and normal children for learning habits. 3) Obese children shoed higher intake of nutrients compared to normal children. Among all the nutrients, minerals and vitamins showed significant differences. Therefore, further study on obese children and their intake of minerals and vitamin is needed. Also, in order to prevent factors which influence obesity, nutrition education at home as well as school was needed.as needed.

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Effects of Deletion of Supplementary Vitamins and Trace Minerals on Performance, Muscle Vitamin E and Fecal Trace Mineral Contents in Finishing Pigs (비육후기 사료에서 비타민-미량광물질 첨가제의 제거가 돼지의 성장 능력, 근육 내 비타민 E 및 분 중 미량광물질 함량에 미치는 영향)

  • Lee, S.C.;Lee, C.E.;Kim, K.I.
    • Journal of Animal Science and Technology
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    • v.45 no.4
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    • pp.543-550
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    • 2003
  • Two experiments were conducted to determine the effects of deletion of vitamin and trace mineral premixes on growth, feed efficiency, backfat thickness, hemoglobin content, muscle vitamin E content, and fecal, serum and muscle trace mineral contents in finishing pigs raised under two different housing conditions. In Exp. 1, three pens (or experimental units) of five pigs each (average weight $\pm$ s.e., 70 $\pm$ 0.5 kg) were assigned to a control diet (with vitamin and trace mineral premixes) or diets with 50 or 100% of the premixes deleted. Pigs were fed to market weight under sub-optimal housing conditions with sawdust-covered concrete floor and no electrical ventilation. In Exp. 2, three pens of four pigs each (average weight $\pm$ s.e., 56 $\pm$ 1.1 kg) were assigned to a control (with vitamin and trace mineral premixes), Diet-P (100% of the premixes deleted) or Diet-P+E (Diet-P plus 100 mg $\alpha$-tocopherol acetate/kg diet fed for the last 2 wk before slaughter). Pigs were fed to market weight under optimal housing conditions with 70%-slatted concrete floor, electrical ventilation and temperature control. No significant differences were found in average daily gain (ADG), average daily feed intake (ADFI), and gain/feed among treatments in both experiments, but in Exp. 2 done with younger pigs, ADG and ADFI tended to be higher in the control group than in pigs fed diet without premixes. Hemoglobin content, hematocrit and red blood cell count were not influenced by the deletion of premixes. Backfat thickness was not different among treatments. Fecal Mn (twofold) and Zn (threefold) contents were higher in the control than in pigs fed diets without the premixes. Serum trace mineral contents were not influenced by diets. $\alpha$-Tocopherol content in gluteus maxima was decreased (P< 0.01) by deleting the dietary premixes, but increased to the level higher than the control by adding 100 mg $\alpha$-tocopheryl acetate/kg diet fed for the last 2 wk before slaughter. Results indicate that: 1) supplementary vitamins and trace minerals may not be necessary for optimum growth in finishing pigs, and 2) deletion of the dietary premixes reduces muscle vitamin E content, but the reduced content can be reversed by adding $\alpha$- tocopherol to diets fed for the last 2 wk before slaughter. The deletion may help to alleviate the environmental load of certain minerals from manure.

A Survey on Nutrition Attitude and Food Habit of Nationwide Middle School Student's Mothers (전국 중학생 어머니의 영양태도와 식습관에 관한 조사)

  • 김혜영
    • Journal of Nutrition and Health
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    • v.28 no.2
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    • pp.152-161
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    • 1995
  • The purpose of this study was to provide a baseline assessment and relationship of nutrition attitude and food habit among mothers of middle school students. Eighteen questions were developed to test nutrition attitude and food habit test was used to reflect dietary behavior. The questionnare was mailed to a representative sample of nationwide middle schools, and was asked to be answered by mothers of one class' students. Usable questionnares were recieved from 4,694 participants of 99 schools. The mean score of nutrition attitude was 65.9 out of minimum possible score 18 and maximum 90. Nutrition attitude was weaker in the areas of control and self-efficacy than in intention and outcome-expectation. The mean score of food habit was 38.6 out of minimum possible score 12 and maximum 60. Food habit was weaker in the areas of protein, vitamins & minerals and dietary fiber than in the other areas. Nutrition attitude and food habit scores were lower among rural, manually working, lower educated and low-income mothers. There was a significant correlation between nutrition attitude and food habit(r=0.37, p<0.001).

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Cholesterol-Lowering Effect and Anticancer Activity of Kimchi and Kimchi Ingredients (김치와 김치재료의 콜레스테롤 저하 및 항암효과)

  • 이재준;정영기
    • Journal of Life Science
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    • v.9 no.6
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    • pp.743-752
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    • 1999
  • The purpose of the paper is to explore the current knowledge on the nutritional evaluation, cholesterol-lowering effect and antitumor activity of kimchi and its ingredients(Korean cabbage, garlic, red pepper powder, ginger and onion). Kimchi contains high contents of nutrients such as vitamins(ascorbic acid, $\beta$-carotene and vitamin B complex), minerals(calcium, potassium, iron and phosphorous), essential amino acids and dietary fiber. Kimch also contains high levels of lactic acid bacteria, allicin, capsaicin, organic acid, phenol compounds, flavonoid and sulfur compounds. The dietary fiber and lactic acid bacteria isolated from kimchi are effective in improving intestinal microflora of human. Isoluble dietary fiber shows anticancer activity, but soluble dietary fiber shows hypocholesterolemic effect. Lactic acid bacteria isolated from kimchi acts as a hypocholesterolemic or anticancer agent. A major ingredient of kimchi is mainly cruciferous and allium family vegetables, which were also reported to prevent cancer and atherosclerosis. It is suggested that kimchi is important not only as one of the traditional fermented Korean food but also as therapeutic agent for carcinogenesis and hypercholesterolemic state.

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Physico-Chemical Characteristics of Mongolian Goat, Sheep and Cow Milk

  • Chuluunbat, Tsend-Ayush;Yoon, Yoh-Chang;Kim, Soo Yeon
    • Journal of Dairy Science and Biotechnology
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    • v.31 no.2
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    • pp.93-98
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    • 2013
  • For purposes of substantiation of organizing measures on industrial processing of goat's and sheep's milk in Mongolia and the production of dairy products we have conducted the studied physico-chemical characteristics of the Mongolian goat's and sheep's milks especially to recognize amino acids, minerals and vitamins in the milk and compare with the Mongolian cow's milk. And also was studied fractional structure of goat's milk whey proteins.

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The Traditional Method for Preparing Korean Vegetable Dishes - Especially about Na mul.Seng chae.Ssam - (채소의 전통 조리법 - 나물.생채.쌈을 중심으로 -)

  • 조후종
    • Korean journal of food and cookery science
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    • v.14 no.4
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    • pp.339-347
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    • 1998
  • Korean vegetable dishes-Na mul are indigenous and popular foods for a long time, and have been eaten by not only the common people but also the royale people in the ordinary meal and customary affairs. Grains are principal item of diet for Koreans and additions of Na mul in diet provide the nutritional minerals and vitamins. Especially vegetable oils in seasoning played the important role in nutrition balance. This manuscript historically investigate the Korean vegetable dishes-especially Na mul, Seng chae, Ssam, and the vegetables, additional ingredients and seasonings. 1. Foreign vegetable were introduced very actively. As the result of it, the more variety of vegetables are available. 2. Vegetable oils such as sesame oil, perilla oil, roasted sesame seed and pine nuts, etc were widely used for seasonings. 3. Seng chae dishes had been prepared with more than two different kinds of vegetables. Seasonings are used from the various sources, and combination of ingredients and development of condiments are expected to research further. 4. Ssam foods basically used uncooked vegetables, but steaming and boiling are also common methods.

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Distribution of root density in Pinus thunbergii Parlatore (해송(海松)의 근계밀도(根系密度)의 분포(分布)에 관(關)한 연구(硏究))

  • Joo, Sung Hyun
    • Current Research on Agriculture and Life Sciences
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    • v.9
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    • pp.109-114
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    • 1991
  • The depth and spread of root systems and the density of root branching affect the success and survival of plants subjected to drought. The type and size of root systems are controlled by heredity and soil conditions. There are also important interaction between roots and shoots; roots are dependent on shoots for carbohydrates, growth regulators, and certain vitamins, and shoots are dependent on roots for water, minerals, and certain growth regulators. Pinus thunbergii Parlatore had most of roots in the top 20cm of soil, and had little short of roots in the less than 80cm of soil. Average of root density was $270cm/cm^3$ in the upper soil(0~20cm). Root density of Pinus thunbergii Parlatore was similar to that of Cryptomeria japonica. There is no saying that Pinus thunbergii Parlatore has an advantage over Cryptomeria japonica in the drought. This data will be used to the root density values in the simulation model of black pine stands.

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