• Journal of agriculture & life science
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• 제46권2호
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• pp.49-61
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• 2012

This study was carried out to investigate the chemical composition and the inorganic constituents of the green tea at the 3 picking periods (Ujeon, Sejag, Jungjag) in Hadong. The results as follows ; The contents of chlorophyll, tannin, vitamin-c and total catechin were increased as picking periods increased but the contents of total nitrogen, total free amino acids, theanine and caffeine were decreased on the reverse. The inorganic constituents Mg, Ca and Mn were increased as picking periods getting late but the Na, K, B contents were decreased on the reverse. The contents of the total nitrogen, chlorophyll, total free amino acid, theanine, caffeine and total catechin and Na, Mg, Ca, B and Se were insignificant differences between Ujeon and Sejag.

• Journal of The Korean Society of Grassland and Forage Science
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• 제11권1호
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• pp.12-16
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• 1991

Three minerals in orchard grass (Dactylis glomerata Linn.) grown under different potassium (K20) levels in water culture, potassium(K), magnesium(Mg) and calcium(Ca) were divided into water, alcohol, and acid soluble fractions to know the reason of different lea¬ching rate. The results were as follows; (1) The percentage of K in each fraction to total K was not affected by the fertilization levels, and it was 90-93, 4-6, and 2~3% in water, methanol and 0.5% HCI soluble fractions, respectively. (2) About 800/c of the extractive Mg was water soluble, and 14-22% of total Mg were extracted by O. 5% HC! solution. (3) The percentage of water, O. 5% HCI- and 1 M HCI-soluble Ca to total Ca were affected by the fertilization levels, and were 26-46%, 44-54%, and 8-22%, respectively. From the above facts, it is known that the solubility in water was the highest in K and followed by Mg and Ca. While the solubility in HCI solution was opposite to that in water.

• Food Science and Preservation
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• 제11권3호
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• pp.424-429
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• 2004

Proximate components, minerals, vitamins and chlorophyll contents were determined in vegetables purchased at Garak-dong market and organic vegetables cultivated at Hongchun, Kangwon-do. The vegetables were Kale, Angelica Keiskei Koidz, Celery, Lettuce and Allium fistulosum. In proximate component contents, analyzed crude protein and fat contents of organic vegetables were higher than those of general vegetables. Organic vegetables had strong green color. Minerals such as sodium, potassium, calcium, phosphorus, iron as well as vitamins were determined. Contents of minerals and vitamins in organic vegetables were higher than those of general vegetables. Total mineral content of organic and general kales were 811.8 mg/l00g, and 688.1 mg/l00g, respectively. Total mineral content of organic Angelica Keiskei Kowz, Celery, Lettuce and Allium fistulosum were 447.9, 486.5, 368.6, and 320.9 mg/100g, respectively.

• Journal of the Korean Wood Science and Technology
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• 제39권4호
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• pp.370-380
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• 2011

This study was carried out to investigate the properties of soils in the sampling green tea farms and the chemical constituents of the green tea leaves at the 3 harvest stages (Ujeon ${\rightarrow}$ Sejag ${\rightarrow}$ Jungjag). The results as follows; The properties of the soils were sandy loam, loam, well drained and fertile-rich in phosphoric acids in general. The contents of chlorophyll, tannin, vitamin-c and total catechin were increased as harvest periods getting late but the contents of total nitrogen, free amino acids, theanine, caffeine were decreased on the reverse. The inorganic constituents Mg, Ca and Mn were increased as harvest periods getting late but the Na, K, B contents were decreased on the reverse. The contents of the total nitrogen, chlorophyll, total free amino acid, theanine, caffeine and total catechin and Na, Mg, Ca, B and Se were insignificant differences between Ujeon and Sejag.

• Korean Chemical Engineering Research
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• 제49권3호
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• pp.277-284
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• 2011

In this study, UV-curing type organic - inorganic hybrid hard coating solutions were prepared from alumina sols and acrylate monomers. The mixture of alumina sols, prepared from aluminum isopropoxide, and a silane coupling agent, methacryloxypropyl trimethoxysilane(MPTMS), was used as an inorganic component. Also, the mixture of acrylate monomers, pentaerythritol triacrylate(PETA), 1,6-hexanediol diacrylate(HDDA) and dipentaerythritol hexaacrylate (DPEHA), was used as an organic component. The organic-inorganic hybrid coating solutions were obtained by mixing the inorganic component and organic component, deposited on polycarbonate substrates by spin coating and densified by UV-curing. The effect of the amount of MPTMS in the inorganic component and the irradiation time during UV-curing was studied on the properties of coating films. As a result, when 0.20 mole of MPTMS was used, the pencil hardness of coated films showed an excellent pencil hardness of 3H and also exhibited a good abrasion resistance of 2% in haze.

• Journal of Life Science
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• 제16권7호
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• pp.1123-1126
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• 2006

The nutritional composition of Fomitopsis pinicola (F. pinicola) fruiting body has been analyzed for medicinal and edible uses. The contents of crude fibers, carbohydrates, crude protein, moisture, crude fats and ashes were 43.3%, 26.3%, 12.8%, 12.6%, 3.3% and 1.7%, respectively. Eighteen amino acids were found in F. pinicola. Among total amino acids, glutamate content was the highest (457 mg/100 g dry mushroom) and arginine, glycine, valine, aspartate and isoleucine were followed. Concerning free amino acids, glutamine, arginine, trytophan, and glutamate were dominant. The vitamin E content was the highest (276 mg/100 g dry mushroom), then vitamin H and vitamin B, were followed. The mineral contents were as follows: K 165.06 mg, P77.57 mg, Mg 46.11 mg, Fe 21.56 mg, and Ca 16.90 mg based on 100 g dry mushroom.

• Proceedings of the Korean Nutrition Society Conference
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• 한국영양학회 2001년도 춘계연합학술대회 초록
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• pp.191.1-191
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• 2001

• Journal of Mushroom
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• 제3권3호
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• pp.100-104
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• 2005

We investigated mineral difference from mushroom Phellinus linteus and Phellinus baumii on mulberry, oak and elm. ICP test, The major mineral components were K, Ca, and Fe, while Mg, Na, P, Cr, Mn, Cu and Zn were determined as micro mineral components. In case of P.linetus and P.baumii the component of K was shown as 699.0mg/100g and 630mg/100g, in oak, 340.7mg/100g and 314.6mg/100g in elm, and 311.6mg/100g and 311.6mg/100g in mulberry respectively. In Ca, mulberry fruiting body were shown about 2 times highest and expecially in case of Na was oak fruiting body were shown as 10 times highest as against the others sample groups. In micro mineral components, Zn component was shown very diffeence about sample groups. We concluded that the highest mineral component of K was shown in mushroom cultivated on oak of both P.linetus and P.baumii. As a results, mineral component has showed very difference on cultivated to timber. According to the results of mineral component we concluded that Phellinus linteus and Phellinus baumii has mineral component different depending on timber.

• Journal of Food Hygiene and Safety
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• 제13권2호
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• pp.94-98
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• 1998

Agaricus blazei Murill, a mushroom which is well known as a potent antitumor agent, contains abundant pharmaceutical substances. To identifY the major components of Agaricus blazei Murill fruiting bodies cultivated in a Korean local farm was analyzed. There were not large differences in chemical compositions of inorganic substances, carbohydrates, amino acids and fatty acids between Agaricus blazei Murill fruiting bodies cultivated in Korea and those in Japan. However, carbohydrate composition was significantly lower in Agaricus blazei Murill of Korea compared to those of Japan. Total amino acid contents were 280.75 mg% in Agaricus blazei Murill fruiting bodies. Sixteen species of amino acid were identified by high performance liquid chromatography except cysteine. Linoleic acid, the most abundant fatty acid contained in Agaricus blazei Murill fruiting bodies, was estimated to be 78.3% of total fatty acids.

• Korean Journal of Food Science and Technology
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• 제16권3호
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• pp.358-362
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• 1984

Soybeans were soaked in water for 3 hrs and germinated at $25^{\circ}C$ for 5 days followed by hot water extraction and boilding for 30 min. The prepared soymilk was analyzed for chemical composition, phytic acid and soluble minerals. Germination resulted in a slow decrease in total solids while protein recovery increased to a maximum of 92.5% after 2 days. Carbohydrate content was reduced to 65% by the 5th day of germination. The intial phytic acid content in soymilk of 1.26g recovered from 100g dry soybean was decreased by 41.3% while inorganic phosphorus increased more than four times from 31.3mg to 135.0mg. Total soluble minerals was also steadily increased.