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        검색결과 340

        41.
        2017.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study, analyzed the general and minerals composition of kamut and investigated its effect on blood components in mice fed a high fat diet. The content of each general component of kamut was as follows: 11.02±0.75% water, 13.16 ±1.28% crude protein, 1.85±0.19% crude fat, and 1.97±0.13% ash. The leptin level was the highest in the HF group(30.00± 0.00 ng/mL) when compared to the control group. There was a significant decrease of 23.65±5.54 ng/mL in the HFK group when compared to the HF group (p<0.05). The blood LDL-cholesterol concentration was the lowest in the control group at 10.00±2.00 mg/dL. The level was highest in the HF group at 28.00±0.00 mg/dL when compared with the other groups (p<0.05). The aspartate transaminase (AST) level was significantly higher in the HFK group (179.33±173.88 U/L) than in the control (61.00±12.73 U/L) and HF groups (132.00±0.00 U/L). According to the results of this study, the consumption of kamut lowers the blood LDL-cholesterol level more than the consumption of wheat flour. Additionally, kamut contains antioxidant substances such as selenium and zinc, which are thought to contribute to vascular health and thus aid in maintaining good health. Therefore, it is necessary to develop a variety of health foods using kamut; it should be used as a functional food for the maintenance of good health.
        4,000원
        42.
        2017.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The objective of this experiment was to investigate amino acids and mineral compositions of the four major muscles (LD: longissimus dorsi, PM: psoas major, SM: semimembranosus, and GM: gluteus medius) from Korean native black goat (KNBG). Five uncastrated male KNBGs of 36 months of age were commercially slaughtered and the four muscles were sampled to determine concentrations of myoglobin, collagen, amino acids and minerals. There were significant differences (p<0.05) in myoglobin and collagen content among the four muscles. Myoglobin content of PM was significantly higher (p<0.05) than those of SM and GM. Collagen content of SM was significantly higher (p<0.05) than that of LD. There were significant differences (p<0.05) in cystine and leucine concentrations among the four muscles, and PM had the highest concentrations of the two amino acids compared to other muscles (p<0.05). Also, there were significant differences (p<0.05) in K, P, Mg and Fe contents among the four muscles from KNBG. PM had the highest mineral content while the lowest mineral content was observed in LD. In addition, Fe contents of PM and GM were higher than those of LD and SM (p<0.05). These results indicated that amino acids and mineral content vary considerably with the anatomical location of muscles of Korean native black goat.
        4,000원
        43.
        2017.10 구독 인증기관·개인회원 무료
        This work aimed to discriminate the geographical origins of Domestic and Chinese Wolfiporia extensa. subjected to of oxygen (45.32 to 48.07%), carbon (38.09 to 40.12%), hydrogen (6.05 to 6.78%), and nitrogen (0.16 to 0.23%). Antioxidant activity was examined by DPPH free radical scavenging activity. According to the results of the experiment, no significant differences were found between domestic (IC50, 7.25 mg/ml) and Chinese (IC50, 8.35 mg/ml) Poria cocos wolf. However, as determined by the inorganic mineral contents were significantly different between domestic and Chinese W. extensa. The amount of potassium in domestic and Chinese W. extensa was 47.60 ± 8.78% and 33.14 ± 17.27%, respectively. The results of this study suggested that the analysis of inorganic components by ED-XRF should be useful for origin identification of Poria cocos wolf.
        45.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study was to investigate ash and mineral contents of agricultural products that are widely and specifically grown in Korea, including 23 fruits, 11 cereals and specialty crops, and 11 leaves and vegetables. Pre-treatment of mineral was performed by microwave method. Mineral contents were analyzed by Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES) and Inductively Coupled Plasma Spectrophotometry Mass (ICP-MS). Ash contents ranged from 0.20 to 0.69 g/100 g in fruits, 1.62 to 3.80 g/100 g in cereals, and 0.28 to 2.93 g/100 g in leaves and vegetables. Among the 45 samples, the highest contents of ash were found in quinoa (average 3.80 g/100 g), the highest contents of calcium (Ca) were found in Hansan ramie leaves (average 894.79 mg/100 g), the highest contents of phosphorus (P) were found in yellow amaranth(average 661.88 mg/100 g), the highest contents of potassium (K) were found in quinoa (average 1,455.38 mg/100 g), the highest contents of magnesium (Mg) were found in red amaranth (average 434.02 mg/100 g), the highest contents of molybdenum (Mo) were found in moringa (average 482.50 μg/100 g), and the highest contents of selenium (Se) were found in apple mango(average 23.67 μg/100 g).
        4,000원
        46.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study aimed to discriminate the geographical origins of domestic and chinese Wolfiporia extensa. They were subjected to oxygen (45.32 to 48.07%), carbon (38.09 to 40.12%), hydrogen (6.05 to 6.78%), and nitrogen (0.16 to 0.23%). Antioxidant activity was examined by DPPH free radical scavenging activity. According to the results of the experiment, no significant differences were found between domestic (IC50, 7.25 mg/ml) and Chinese (IC50, 8.35 mg/ml) W. extensa. However, as determined by the inorganic mineral contents were significantly different between domestic and Chinese W. extensa. The amount of potassium in domestic and Chinese W. extensa was and 33.14 ± 17.27%, 47.60 ± 8.78%, respectively. The results of this study suggested that the analysis of inorganic components by ED-XRF should be useful for origin identification of W. extensa
        4,000원
        48.
        2016.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study evaluated the effects of TMC (trace mineral-fortified microbial culture) supplementation on growth performance, carcass characteristics, and meat quality parameters of Hanwoo steers during the last 4 months of finishing period. The TMC was a combination of 0.4% trace minerals, 20.0% Na-bentonite, and 79.6% feedstuffs, which was inoculated with a mixed microbial culture (Enterobacter ludwigii, Bacillus cereus, B. subtilis, Lactobacillus plantarum, and Saccharomyces cerevisiae). Twenty-four steers were blocked by initial BW (634 ± 16 kg) and randomly allocated to one of two treatments (control vs. 3.3% TMC). The effect of TMC supplementation on the growth performance was not significant. There was no incidence of urolithiasis in TMCfed steers. However 3 out 12 steers (25%) fed the control diet were observed to have urinary calculi. The carcass yield and meat quality parameters were not affected by TMC supplementation, however marbling score was increased in TMC-fed steers (P = 0.08). There was no effect of TMC treatment on the chemical composition of longissimus dorsi muscle (LM). The TMC supplementation increased concentrations of manganese (P < 0.01), cobalt (P = 0.02), iron, and copper (P = 0.06) in LM. In conclusion, TMC treatment did not negatively affect growth performance and meat quality parameters, and positively affected the trace minerals profile of LM.
        4,000원
        49.
        2016.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The aim of this study is to evaluate the effects of vitamin or mineral supplements on the conception rates of dairy heifers when replacing the last injection of GnRH with hCG in ovsynch protocol (experiment 1) and also to investigate whether the estrus synchronization treatment in the heifer stage affects the conception rates after 1st parturition (experiment 2). In experiment 1, 50 heifers were randomly assigned into 3 groups: 20 heifers each in groups 1 and 2, and 10 in group 3. All three groups were treated with an intramuscular injection of GnRH on day 0 (day 0 = the day of program start), PGF2α on day 7 and hCG on day 9, and were inseminated on day 10, 12~16h after hCG injection. In group 1 (vitamin group), the heifers were treated with an intramuscular injection of 5 ml of vitamin-ADE 500Ⓡ, and group 2 (mineral group) was treated twice with an intramuscular injection of 30 ml of mineral supplement-LAPTOVETⓇ on a one-week interval beginning on the day of hormone treatment (day 0 and day 7 respectively). Group 3 (control) was treated only with hormones. Pregnancy diagnosis was performed by ultrasonography through a rectal probe. First service conception rates (FSCR) and average services per conception (ASPC) were recorded for all subjects. Of the total 50 heifers, 6 (2 in group 1, 3 in group 2, and 1 in group 3) heifers were eliminated due to accidents during experiment 1. FSCRs were 58.8% (10/17), 66.7% (12/18) and 44.4% (4/9) in groups 1, 2 and 3, respectively. ASPCs were 1.53±0.72, 1.27±0.59 and 1.63±0.74 in groups 1, 2 and 3, respectively. Although there were no significant difference between the groups, relatively good results (higher FSCR and lower ASPC) were obtained in both group 1 and 2. In experiment 2, 11 primiparous cows from group 2 of experiment 1 in heifer stage which had been treated both with the hormones for estrus synchronizing and mineral supplements (ES group), and 12 primiparous cows treated only with minerals (non-ES group) were compared to examine the effects of estrus synchronization program on conception rates after 1st parturition. Following the examination, postpartum ASPCs were 1.55±0.82 and 2.17±1.47 in ES group and non-ES group, respectively. The postpartum average days open (ADO) were 116±56 and 197±93 in ES group and non-ES group, respectively. Although there were no significant difference between the two groups, desirable results (lower ASPC and shorter ADO) were found in ES group after 1st parturiton. In conclusion, experiment 1 indicates that vitamin or mineral supplement with ovsynch protocol may have some positive effect on FSCR and ASPC of dairy heifers, and in experiment 2, ES program in heifer stage had a positive effect on ASPC and ADO following 1st parturition.
        4,000원
        50.
        2016.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        국제지질자원인재개발센터는 지질자원 분야의 국내·외 인적자원개발을 목적으로 설립되었으며, 개원 이래 교육 훈련 목표 성과를 달성하며 운영되고 있다. 이 연구에서는 국제지질자원인재개발센터 성과의 객관성을 확인하기 위하여 교육인증과정 수료자를 대상으로 교육요구분석 및 교육훈련 과정 성과평가를 실시하였다. 교육요구분석을 위해 Borich 교육요구도와 Locus for Focus 방식을 활용하였다. 교육훈련 과정 성과평가는 성별, 연령별, 학력별, 수강구분에 따라 만족도 및 현업적용도 분석을 위해 설문조사 방식을 활용하였다. 연구결과, 지질학, 광물자원, 석유해저, 지구환경 분야 의 교육훈련 과정의 교육요구도가 도출되었으며, Locus for Focus 방식에 따라 교육과정 개발의 시급성을 판단하였다. 교육훈련 과정 성과평가 결과 광물자원, 지구환경 분야의 과정이 지질학 분야의 과정보다 학습성취에 대한 만족도가 높은 것으로 나타났다.
        4,500원
        51.
        2016.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        PURPOSES: The new waste management policy of South Korea encourages the recycling of waste materials. One material being recycled currently is tire-derived fuel (TDF) ash. TDF is composed of shredded scrap tires and is used as fuel in power plants and industrials plants, resulting in TDF ash, which has a chemical composition similar to that of the fly ash produced from coal. The purpose of this study was to evaluate the properties of an asphalt concrete mix that used TDF ash as the mineral filler. METHODS: The properties of the asphalt concrete were evaluated for different mineral filler types and contents using various measurement techniques. The fundamental physical properties of the asphalt concrete specimens such as their gradation and antistripping characteristics were measured in accordance with the KS F 3501 standard. The Marshall stability test was performed to measure the maximum load that could be supported by the specimens. The wheel tracking test was used to evaluate the rutting resistance. To investigate the moisture susceptibility of the specimens, dynamic immersion and tensile strength ratio (TSR) measurements were performed. RESULTS : The test results showed that the asphalt concrete containing TDF ash satisfied all the criteria listed in the Guide for Production and Construction of Asphalt Mixtures (Ministry of Land, Infrastructure and Transport, South Korea). In addition, TDF ash exhibited better performance than that of portland cement. The Marshall stability of the asphalt concrete with TDF ash was higher than 7500 N. Further, its dynamic stability was also higher than that listed in the guide. The results of the dynamic water immersion and the TSR showed that TDF ash shows better moisture resistance than does portland cement. CONCLUSIONS : TDF ash can be effectively recycled by being used as a mineral filler in asphalt, as it exhibits desirable physical properties. The optimal TDF ash content in asphalt concrete based on this study was determined to be 5%. In future works, the research team will compare the characteristics of asphalt concrete as function of the mineral filler types.
        4,000원
        52.
        2016.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 지역별로 생산되는 김의 일반성분, 무기질, 아미노산 성분함량 측정하여 비교분석하고자 하였다. 지역 구분은 한국의 전남, 중국의 강소성, 일본 아리아케 지역에서 생산되는 방사무늬김(Pyropia yezoensis)을 대상으로 일반성분은 AOAC 방법으로 분석하였으며, 무기물은 ICP-분광분석기, 아미노산은 아미노산 분석기로 정량정성 분석 하였다. 분석 결과 한국, 중국, 일본의 일반성분 함량의 범위에서 수분은 8.13±0.38 % 조단백은 37.25±1.15 % 조지방은 2.12±0.27 % 회분은 7.41±0.36 % 탄수화물 45.06±1.30 %을 확인하였고, 총 무기질 함량은 한국 28300.19±76.39 ppm, 중국 13945.63±7.73 ppm, 일본 12262.485±4.38 ppm으로 한국이 가장 높았으며, 총 아미노산의 경우 한국 265.28±0.38 mg g-1, 중국 209.19±0.19 mg g-1, 일본 157.61±0.43 mg g-1으로 나타났다. 원산지별 연안생태환경에 따라 일반성분 및 무기질, 아미노산 함량의 차이가 나타나는 것을 확인할 수 있었으며 향후 다양한 국가에서 생산되는 김에 대한 연구 기초자료로 활용될 수 있다고 사료된다.
        4,000원
        55.
        2015.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구의 목적은 광물자원에 관한 세 가지 유형의 스마트수업 모듈을 개발·적용한 후 그 효과를 밝히는 것이다. 연구대상은 일반계 여자고등학교 1학년 6개 학급으로 실험집단 100명, 통제집단 111명이다. 실험집단에게는 태블릿 PC를 2인당 1대 제공하고 세 가지 유형의 스마트수업을 실시하였고 통제집단에서는 교사중심의 강의식 수업을 실시하였다. 광물에 대한 흥미도 검사는 5단계 리커트 척도의 10문항을 사용하였고, 이해도 검사는 광물, 광상, 광물자원의 생성과정 등에 대한 15문항을 개발하여 사용하였다. 연구 결과 첫째, 광물과 광물관련 학습에 대한 흥미 범주에서 실험집단이 통제집단보다 유의미하게 높게 나타났으나, 광물과 암석을 직접 관찰하고자 하는 탐구의욕 범주에서는 두 집단 간의 유의미한 차이가 나타나지 않았다. 둘째, 광물에 대한 이해도에서 실험집단의 점수가 통제 집단보다 높게 나타났으며, 특히 상위수준 학생들에게 스마트수업이 더 효과적인 것으로 나타났다. 셋째, 스마트수업의 장단점에 대한 인식조사 결과, 관련 자료를 찾고 다양한 형태의 산출물을 만드는 경험을 흥미롭게 느끼며 장점으로 인식한 반면, 정보량이 많아 의견조율 및 의사결정이 어려운 점을 단점으로 지적하였다.
        4,300원
        56.
        2015.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 사양토에서 튤립의 구근생산을 위해 자구를 정식하기 전에 유기질과 무기질 비료 시용이 지상부와 구근의 생육에 미치는 영향을 알아보고자 실시하였다. 유기질 비료 처리에서 ‘Ile de France’ 품종은 초장과 개화율이 10a당 4800kg 처리하였을 때 가장 낮았으며, 600과 1200kg 처리에서 지상부 생육이 양호하였다. 구근의 생육은 10a당 0과 4800kg 처리에서 가장 불량하였으며, 1200kg 처리구에서 다른 처리들보다 양호하였다. ’Kees Nelis' 품종은 10a당 0과 4800kg 처리에서 지상부 생육이 불량하였으며, 600과 1200kg에서 초장, 엽장, 화장이 향상되었다. 또한 구근의 생육은 대조구에서 가장 불량하였으며, 10a당 600 ~ 4800kg 처리 간에는 통계적인 차이가 나타나지 않았다. 질소, 인산, 칼륨이 혼합된 무기질 비료처리시 ‘Ile de France' 품종은 10a당 무처리와 N-P-K 52.0-25.6-80.0kg 처리구에서 초장, 화장 등의 생육이 불량하였으며, 전반적으로 6.5-3.2-10.0kg 처리에서 지상부 생육이 가장 좋았다. 구근의 직경, 둘레, 무게 등 생육은 10a당 N-P-K 6.5-3.2-10.0, 13.0-6.4-20.0, 26.0-12.8-40.0kg 처리에서 양호하였다. ’Kees Nelis' 품종은 10a당 N-P-K 6.5-3.2-10.0kg 처리에서 초장, 엽장, 화장 등의 생육이 촉진되었으며, 구근 생육은 무처리와 N-P-K 52.0-25.6-80.0kg/10a 처리에서 가장 불량하였고, N-P-K 6.5-3.2-10.0, 13.0-6.4-20.0, 26.0-12.8-40.0kg 처리에서 둘레, 높이, 무게 등이 향상되었다. 따라서 튤립의 지상부와 구근의 생육을 위해서는 10a당 유기질 비료는 600~1200kg, 무기질 N-P-K 비료는 6.5-3.2-10.0kg을 시용하는 것이 가장 효과적일 것으로 판단되었다.
        4,000원
        57.
        2015.06 구독 인증기관 무료, 개인회원 유료
        In order to use as a new functional food material, we analyzed the chemical components including the organic compounds, minerals and Vitamin C of sorbus and acacia honey which were produced in South Korea. The condensed rate of methanol extraction in honey was 77% of sorbus honey and it was 93.06% of acacia honey. In the case of sorbus honey, main organic compounds that extract by organic solvents in GC-MS analysis were trichloromethane, propylcarbinol, cyclopentane, acetoxyethane, tetrasol, aziridine etc. and main aromatic compounds that extract by organic solvents in SPME analysis were Skelly solve, Benzaldehyde, Hyacinthin, Dodecanal, Lauraldehyde etc. Also, in occasion of acacia honey, main organic compounds were trichloromethan, Acetoxyethane, Hexanaphthene, acetidin etc. and main aromatic compounds were Hydrazomethan, Azulene, Cyclotrisiloxane, Hydrazine etc. Proximate composition was crude protein 0.54%, crude fat 0.44%, crude ash 0.25% in sorbus honey and crude protein 0.10%, crude fat 0.29%, crude ash 0.06% in acacia honey. Free sugar that analyze by HPLC was fructose 26.81%, glucose 20.42%, total sugars 47.23% in sorbus honey and fructose 48.52%, glucose 24.29%, total sugars 72.81% in acacia honey. Vitamin C was not detected in two sample honeys. Minerals by ICP analysis were detected total 18 kinds in sorbus honey, K 11.715 ppm>Na 7.857 ppm>Si 4.407 ppm>Ca 3.673 ppm etc. and total 22 kinds in acacia honey, Na 4.527 ppm>Si 3.420 ppm>K 3.091 ppm>Zn 1.482 ppm etc.
        4,000원
        58.
        2015.06 구독 인증기관 무료, 개인회원 유료
        In order to use as a new functional food material, we analyzed the chemical components including the organic compounds, minerals and vitamin C of canola honey which were produced in South Korea. The condensed rate of methanol extraction in honey was 90.5% and main organic compounds that extract by organic solvents in GC-MS analysis were propyl carbinol, cyclopentane, trichloromethane, vinegar naphtha and so on. Also, main aromatic compounds that extract by organic solvents in SPME analysis were diisooctyl adipate, furole, furaldehyde, cyclotetrasiloxane, trisulfide and many more. As proximate composition, crude ash content was lower than acacia honey (0.06%) and manuka honey (0.24%) by 0.01%, and crude protein was higher than acacia honey (0.10%) by 0.23%, but the crude fat of canola and manuka honey was lower content than acacia honey (0.44%) by 0.10%. Free sugar that analyze by HPLC consisted of fructose 44.11%, glucose 22.72%, and total sugars was 66.83%. Minerals by ICP analysis were detected total 15 kinds, Na 7.157 ppm>Ca 5.934 ppm>Si 4.049 ppm>K 1.443 ppm>Mg 1.218 ppm etc. Vitamin C was not detected.
        4,000원
        59.
        2015.04 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study was conducted to investigate the dietary and other factors affecting bone mineral density (BMD) in older Korean women. A total of 340 women aged 65 to 74 were recruited from the Kugoksoondam area (Kurye, Goksung, Soonchang and Damyang counties), known as the longevity-belt region in Jeonla province, Korea. They were categorized into two groups according to bone status by T-score : a nonosteoporotic group and an osteoporotic group. Demographic characteristics were collected, as well as information on physical measurements, blood tests for biochemical indicators, health status health-related life style, dietary behavior, favorite food groups, nutrient intake and mini nutrition assessment (MNA). The results are as follows: The mean age of 185 nonosteoporotic women was 69.6 years and that of 155 osteoporotic women was 70.9 years (p<0.001). The mean T-score of the nonosteoporotic group was -1.5 mg/cm3 and that of theosteoporotic group was -3.2 mg/cm3 (p<0.001). Height and body weight in the nonosteoporotic group were significantly higher than in the osteoporotic group (p<0.001, respectively). There was no significant difference in BMI, although the BMI in the nonosteoporotic group was slightly higher. Waist and hip circumferences in the nonosteoporotic group were significantly higher than in the osteoporotic group (p<0.01, respectively), and the mid upper arm and calf circumferences were also significantly higher than in the osteoporotic group (p<0.001, p<0.01, respectively). The 5 m walking ability was significantly superior compared to the osteoporotic group. Serum levels did not show any significant differences between the groups and were within normal range. The serum total protein, albumin and Insulin-like growth factor (IGFs) levels of the nonosteoporotic group were significantly higher than those of the osteoporotic group (p<0.05, p<0.05, p<0.001, respectively). IGF was 104.7 ng/mL for the nonosteoporotic group and 88.1 ng/mL for the osteoporotic group. Physical activity and appetite in the nonosteoporotic group were significantly higher (p<0.01, p<0.05, respectively). The favorite food groups of the nonosteoporotic group comprised more meats and fish than those of the osteoporotic group (p<0.05, respectively). Nutrient intake was not significantly different, with the exception of niacin intake (p<0.05), but the nutrient intake of the nonosteoporotic group was slightly higher than that of the osteoporotic group. The niacin intake of the nonosteoporotic group and the osteoporotic group were 11.4 mgNE and 10.0 mgNE, corresponding to 103.6% and 90.9% of the Korean EAR, respectively. The MNA score of the nonosteoporotic group was significantly more favorable than for the osteoporotic group. In conclusion, it is necessary to maintain adequate body weight and muscle mass. Habitual physical activity may have a beneficial effect on BMD for older women. Dietary factors, such as meat and fish, higher intake of niacin rich foods and nutrient status for older women also appear to have favorable effects on bone mineral density.
        4,500원
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