• 한국균학회지
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• 제11권4호
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• pp.159-162
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• 1983

The dried carpophores of Sarcodon aspratus were examined for mineral elements and a protein-polysacccharide. Calcium, iron, zinc, magnesium, manganese, copper, lead, cadmium and mercury were detected in that order of contents by atomic absorption spectrometry and automatic mercury analysis. The protein-polysaccharide fraction extracted from the carpophore was found to contain 31.5% protein and 52.8% polysaccharide. The fraction showed no antitumor activity against sarcoma 180 implanted in mice.

• Journal of Nutrition and Health
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• 제34권8호
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• pp.881-886
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• 2001

The purpose of this study was to Investigate the effects of green tea catechin on changes of mineral contents in chronic cadmium-poisoned rats. Sprague-Dawley male rats weighing 100 $\pm$ 10g were randomly assigned one of normal group and three cadmium poisoned groups. Cadmium groups were classified to catechin free diet(Cd-0C group), 0.25% catechin diet(Cd-0.25C group) and 0.5% catechin diet(Cd-0.5C group) according to the levels of catechin supplement. Animals were raised for 20 weeks. Cadmium was supplied in drinking water which contained 50ppm Cd$^{2+}$. Effects of catechin were analyzed on changes of mineral contents in chronic cadmium poisoned rats by determining the calcium accumulation in bones, blood, urine and faces and phosphorus In blood and urine. Cd-poisoning inducted the decrease of red blood cell(RBC), white blood cell(WBC), contents of blood hemoglobin and hematocrit, but the levels of those indices were increased by catechin supplementation. The contents of tibia and femur in Cd-0C group was significantly lower than in normal group, but those of catechin supplemetation group was similar to normal group. The calcium contents of urine and faces were higher in Cd-poisoned groups than in normal group, but they was lowered by catechin supplementation. The phosphorus contents of blood and urine in Cd-0C group was significantly lower than in normal group, but that of catechin supplementation group was similar to normal group. Catechin supplementation improved the calcium metabolism in chronic cadmium poisoned rats by increasing the contents of minerals such as calcium and phosphorus in blood and femur and by lowering the urinary and fecal calcium.m.

• International Journal of Industrial Entomology and Biomaterials
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• 제7권1호
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• pp.75-78
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• 2003

This study was carried out to investigate the mineral content of the feces of the $5^th$ instar larvae in a few silkworm species such as a parent domestic silkworm (Jam134), a hybrid (Kumok-jam), the Japanese oak silkworm, and the Chinese oak silkworm. The major minerals of all silkworms throughout all $5^th$ instar larval period are K, P, Mg and Ca, and the result is consistent with the previous study of the mineral content in the mulberry leaves. Although the calcium content decreased sharply at $7^th$ day of the $5^th$ instar, the crude protein content significantly increased at the same age in both domestic silkworms, suggesting a direct relationship between feeding behavior of the silkworms at the larval period and mineral/protein contents. However, this trend was not observed in both oak silkworms. In the comparison of the mineral content among silkworm species, two domestic silkworms were significantly higher in the calcium content compared with two oak silkworms, and the hybrid Kumok-jam was further higher significantly than the feces of parental Jam 143. Excluding the calcium content, overall no significant content variation in other minerals was observed among four silkworm species studied in this study.

• 한국식품조리과학회지
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• 제12권1호
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• pp.34-39
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• 1996

본 연구는 조리 방법에 따른 시금치, 배추, 양배추의 무기질 손실에 대한 기초 자료를 얻기 위하여 채소를 데치기, 압력조리, 찌기, microwave 가열하여 각 조리방법에 따른 무기질 잔존율, 색도 및 관능적 특성 등의 변화에 대하여 조사하였다. 그 결과 시금치, 배추, 양배추 모두 찌기나 microwave 가열이 무기질 잔존율 면에서나 기호적 특성 면에서 양호하게 나타나, 채소 조리시 데치기 위주의 종래 방법 보다 찌기나 microwave 가열을 활용하는 것이 바람직하다고 사료된다. 또 긴 시간 데치거나 압력 조리의 경우 무기질 손실이 크고, 물러져 기호도가 떨어지므로 엽채류 조리시 이 방법은 적합하지 않은 것으로 사료된다.

• 한국도로학회논문집
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• 제19권3호
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• pp.1-10
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• 2017

PURPOSES : This paper focuses on strength development according to the mix design with cement type and mineral admixture from laboratory and field tests in cool weather. METHODS : Two methods evaluated the mix design of concrete pavement in cool weather. Firstly, laboratory tests including slump, air contents, setting time, strength, maturity, and freezing-thawing test were conducted. Three alternatives were selected based on the tests. Secondly, a field test was conducted and the optimum mix design in cool weather was suggested. RESULTS : It is an evident from the laboratory test that a mix with type III cement showed better performance than the one with type I cement. There was a delay in strength development of a mix with mineral admixture compared to mix design without any mineral admixture. In the field test, type III cement+flyash 20% mix design proved the best performance. CONCLUSIONS : For concrete pavement in cool weather, mix design using type III cement could overcome the strength delay due to mineral admixture. Moreover, it is possible to make sure of durability of pavement. Therefore, strength and durability problems due to cool weather would decrease.

• Journal of Ginseng Research
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• 제4권1호
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• pp.55-64
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• 1980

The distribution pattern of mineral nutrients, among various Parts of Korea ginseng (Panax ginseng C.A. Meyer) was investigated to understand ginseng nutrition by simple correlation analysis. Five·year old ginseng plants grown under four different nutritional environments were sampled and separated into leaf, petiole, stem, rhizome, cortex and epidermis of tap foot, central part of tap root, cortex and epidermis of lateral root, central part of lateral root, fine root in the middle of truly, for chemical analysis. Between mineral nutrients in root, N and P showed highly significant positive correlation each other and with Mg and Cu while all other elements (K, Ca, Mg, Fe, Mn, Zn, Cu, B) showed highly significant positive correlation each other. In shoot, number of mineral nutrient pairs haying significant relation was much less than in root. (Negative: P with Ca or B, K with N, Fe, Mn or Cu, Positive: N with Mg, Fe, Mn or Cu, K with Zn, Ca with Mg, Zn, or B, Fe Mn Cu each other, Mn with B.) The number of pairs having significant correlation in whole plant was approximately the same as the number in root but three of them showed significant negative correlation. The distribution pattern similarity of mineral contents among various parts was also discussed in relation to physiological significance in Korea ginseng plant.

• 한국광물학회지
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• 제24권4호
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• pp.265-278
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• 2011

전남지역의 점토광상은 그 구성광물이 단사정계형 엽납석(pyrophyllite), 1T형 고령석(kaolinite)을 주로 하고 부구성 광물로서 견운모, 석영 및 장석류를 포함한다. 이들 점토광상은 유사한 시기에 유사한 성분을 가진 화산암류로부터 생성되었으며, 각 광상은 광물학적으로 엽납석과 고령석 중의 하나를 우세하게 포함하는 경향이다. 고령토 광상은 주로 다이아스포나 강옥을 포함하지 않지만, 광체 상부에 명반석을 흔히 포함한다. 반면에 강옥이나 다이아스포는 납석 광상에서 흔히 수반된다. 점토광체 상부의 규화응회암류와 응회암류 등 지질시대가 젊어짐에 따라 엽납석 및 고령석의 양은 감소하는 경향이며, 마침내는 나타나지 않게 된다. 반면에 견운모, 석영 및 사장석류는 미약한 상부층에서 흔히 나타난다. 대부분의 점토광체는 상단부에 저색 응회암층이 오고, 그 상부로는 규화대층, 응회암층, 그리고 최상부에 각력 응회암층이 온다. 화학성분 분석에 의하면, $Al_2O_3$는 중-저급의 점토광체뿐 아니라 응회암류에서도 다소 높게 나타내며, 그 이유는 응회암류의 주요 구성광물인 사장석 때문이다. 광체와 모암에서 $Na_2O$와 CaO는 비교적 낮은 함량을 나타내나, $K_2O$는 광체에서 좀더 낮게 나타난다. 점토의 작열 감량은 명반석이나 다이아스포를 포함하는 부분에서는 특히 높게 나타나는 것은 이들이 포함하는 $Al_2O_3$ 및 $SO_4$ 성분에 의한다. 희토류함량분석에 의하면, 경희토류가 중희토류보다 많이 포함되는 경향이며, 다소 미약하지만 부의 유러피움(Eu)이상대를 나타낸다. 대부분의 점토광체는 주로 유백-담회색의 미립이며 층리가 양호하여 야외에서 구분이 어렵지 않은 경우가 많지만, 괴상광체 등이 나타나는 곳에서의 효과적인 탐사를 위해서는 광체 상부 지층 중에서 확인되는 특징적 지층을 선정하는 것이 바람직하다. 전남지역에서 광체를 배태하는 층의 상단부에 연속성이 양호한 저색점토/응회암과 함께 그 상부로 층리와 연장성이 지극히 좋은 규화대가 확인되며, 광물조성 상으로도 광체 및 인근 지층과의 구분이 확실하므로 효과적인 점토광체 탐사를 위한 건층(key bed나 mark horizon)으로서의 역할이 가능하다.

• 광물과산업
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• 제26권
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• pp.22-31
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• 2013

한국지질자원연구원과 몽골 광물자원청은 몽골 항가이 희유금속 광화대 내 둘란하이한 W-Mo 산출지에 대해 공동조사를 하였다. 몽골 항가이 희유금속 광화대 둘란하이한 W-Mo 산출지에 대한 지질광상 조사결과 텅스텐 함량이 높은 광화점들을 발견하였고 텅스텐 광석 광물은 철망간중석, 철중석, 망간중석으로 분석되었다. 실루리아기 호톤트 층의 규암에서 채취한 시료의 텅스텐($WO_3$) 함량이 0.11-4.43%로 분석되었고, 페름기 델거한 복합체의 페그마타이트에서 채취한 시료의 텅스텐 함량이 137-3844ppm으로 분석되었다. 조사지역에서 채취한 시료들의 전체 $R_2O_3$의 평균값은 473ppm으로 지각의 평균 함량인 200ppm에 비해 약 2.5 배 정도 되는 값을 가지며 가장 높은 시료는 1326ppm으로 약 6.5 배 정도 되는 값을 갖는 것으로 분석되었다. 요인분석 결과에 따르면 둘란하이한 지역 내 텅스텐 함량이 높은 두 지역의 광화 작용은 상관관계의 유사성을 보이며 따라서 유사한 기원을 갖는 것으로 판단된다.

• 한국환경보건학회지
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• 제16권2호
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• pp.41-45
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• 1990

This study was performed to analyze for the mineral water (Saeng Su) from 12 pure beverage Co. products, which was obtained during March to May in 1988. The results were as follows: 1. The analytical results of contaminant materials in all the samples were suitable for drinking water standard. The mean value of NH$_{3}$-N, NO$_{3}$-N, Cl-and KMnO$_{4}$ consumption were ND, 49mg/l, 1.08mg/l and 8.14mg/l, respectively. 2. Total bacterial counts were 3/cc in average and Coliforms was negative in all samples. 3. The analytical results of Heavy metals were not detected or detected in a small amount, and the contents were different from each company. The CN, Hg, P were not detected in all the samples and the mean value of Cu, Fe, Mn were 0.0087mg/l, 0.0303mg/l, 0.018mg/l, respectively and it's contents were low. 4. The mean value of Pb, Zn, Cr$^{+6}$, As and Cd were 0.016mg/l, 0.015mg/l, 0.0025mg/l. 0.0059mg/l and 0.0011mg/l respectively.

• 동아시아식생활학회지
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• 제12권3호
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• pp.218-224
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• 2002

This study was undertaken to analyze chemical composition, macro- and micro-mineral contents of ostrich bone with flesh meat (BF), ostrich bone with flesh meat with herb medicine (BFll) and ostrich bone with internal organs (BI). Crude fat of the BFH was lower, but crude protein and crude ash of the BFH were significantly higher than those of the BF and the BI. Among the minerals, Ca, p, Mg, Fe, Cu, Zn content of the BFH were significantly higher than the content in the BF and the BI. The minerals, Pb, Cd and As were not detected in ostrich and herb medicine extracts. From the sensory test of ostrich and herb medicine, the preferences were in the fellowing order; ostrich bone with flesh meat with herb medicine (BFH), ostrich bone with flesh meat (BF), and ostrich bone with internal organs (BI) in extracts.