• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2004.10a
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• pp.257-262
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• 2004

제주 재래마육의 영양학적 가치 구명을 위하여 재래마육 등심과 볼기부위를 분석한 결과 일반성분에서 수분 및 단백질함량에서 부위별 차이가 있었으며 콜레스테롤 함량은 등심과 볼기부위가 각각43.5 mg% 그리고 43.2 mg%였다. 마육에서 미네랄함량은 K가 가장 많았으며 다음으로 P>Na>Mg>Ca순이 었다. Vitamin A 함량은 등심과 볼기부위가 각각 9.62IU, 8.54 lU 였다. 등심과 볼기부위의 필수지방산이 각각 11.0%, 13.0%, 불포화지방산은 각각 62.6%, 63.7% 로 높게 나타났다. 함황아미노산은 경우 등심과 볼기부위가 각각 927.4 mg%, 1041.9 mg%였으며, 필수아미노산의 함량 비율은 각각 49.2 %, 49.7%로 나타났다.

• Journal of Dairy Science and Biotechnology
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• v.25 no.1
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• pp.55-60
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• 2007

Contents of scorched particles in infant formula were studied to provide a scientific evidence for standardization of Food Regulation in Korea. The specification of scorched particles in infant formula in Korea was satisfied with CODEX, USDA and so on. But food regulations for scorched particles in baby food are not mentioned in Korea. Nowadays social interests of scorched particles in infant formula are being increased in the respect of safety for baby food. The composition and contents of scorched particles were analyzed with Scanning Electron Microscope-Energy Dispersive X-ray Spectrometer(SEM-EDS) and Inductively Coupled Plasma Mass Spectrometer(ICP-MS). The results indicate that the scorched particles consist Ca, Na, Fe, Mg and trace elements derived from the ingredient of infant formula. Infant formula are composed of milk, skimmed milk, whey, mixed vegetable oils, minerals and vitamins. These results also show that the contents of scorched particles of infant formula in Korea are little or similar level to those reported in other countries. In general, heavy metals derived from scorched particle are originally used as a source of minerals in infant formula. And it has been thought that they doesn't effect on Provisional Tolerable Weekly Intake set by FAO/WHO for contents and composition of scorched particles.

• Journal of the Korean Recycled Construction Resources Institute
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• v.1 no.3
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• pp.225-232
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• 2013

The inorganic insulating material was fabricated with quartzite, ordinary portland cement(OPC), lime, anhydrous gypsum and foaming agent by hydrothermal reaction. The inorganic insulating material was fabricated by using autoclave chamber under high-temperature and high-pressure. The inorganic insulating material is a porous lightweight concrete. Because of its porous structure, properties of inorganic insulating material were light-weight and high-heat insulation property. Properties of fabricated inorganic insulating material were $0.26g/cm^3$ in specific gravity, 0.4MPa in compressive strength and 0.064W/mK in thermal conductivity. In this study, the inorganic insulating material was fabricated and analyzed at different size of quartzite/OPC, various foaming reagent and functional additives to improve the properties. Consequently, polydimethylsiloxane can improve density and thermal conductivity. Especially, polydimethylsiloxane showed excellent improvement in compressive strength.

• Journal of Food Hygiene and Safety
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• v.37 no.5
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• pp.323-327
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• 2022

The mineral content of Tricholoma matsutake was evaluated for comparison of mineral contents according to the area of cultivation. Ten domestic and thirty Chinese (10 Yanji, 10 Yunnan and 10 Tibet) T. matsutake specimens were assessed using an atomic absorption spectrophotometer (AAS) and inductively coupled plasma mass spectrometer (ICP-MS). The Na, Mg, K, and Ca contents of domestic T. matsutake were 128.12±85.25 mg/kg, 218.52±105.35 mg/kg, 7,534.58±2,691.52 mg/kg, and 17.69±7.14 mg/kg, respectively, while those of Yanji T. matsutake were 124.89±57.24 mg/kg, 64.07±27.52 mg/kg, 1,439.18±311.04 mg/kg, and 10.88±4.52 mg/kg, respectively. The Na, Mg, K, and Ca contents of Yunnan T. matsutake were 90.78±23.23 mg/kg, 77.40±28.36 mg/kg, 1,446.29±126.33 mg/kg, and 28.42±5.18 mg/kg respectively, while those of Tibet T. matsutake were 143.50±41.54 mg/kg, 124.64±50.18 mg/kg, 3,530.95±2,714.99 mg/kg, and 21.05±8.71 mg/kg, respectively. The Cu contents of domestic, Yanji, Yunnan, and Tibet T. matsutake were 105.43±32.97 mg/kg, 19.92±8.95 mg/kg, 54.51±16.91 mg/kg, and 64.80±23.01 mg/kg, respectively. Both domestic and Chinese T. matsutake samples showed significantly different K, Mg, and Cu levels in this study. Therefore, a comparative evaluation of the K, Mg, and Cu contents of multiple domestic and Chinese T. matsutake varieties is needed to determine the appropriate area of cultivation in the future.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.6
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• pp.923-928
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• 2016

To increase the consumption of head-type kimchi cabbage leaves as fresh food ingredients, the physicochemical composition was investigated depending on leaf parts. Kimchi cabbage leaves were divided into three portions, such as outer (L1), mid (L2), and inner (L3), and their proximate compositions were determined along with dietary fiber, free sugar, organic acid, free amino acid, and mineral contents. Contents of moisture, crude protein, and crude fat were highest in L1, whereas contents of crude ash and carbohydrate were highest in L3 (P<0.05). Calories ranged 24.5~26.5 kcal/100 g with no significant difference among leaf parts, and dietary fiber content of L1 was highest (P<0.05). Fructose, glucose, and sucrose contents were highest in L3 (P<0.05). Citric acid, malic acid, and succinic acid were detected, and contents of citric acid and malic acid were highest in L3, in contrast, succinic acid was highest in L1 (P<0.05). Glutamic acid, constituting over 30% of the total free amino acid contents, was highest in L3, whereas ${\gamma}-aminobutyric$ acid contents were highest in L1 (P<0.05). K, Na, Ca, and Mg were the major minerals in head-type kimchi cabbage, and their contents showed no significant differences (P<0.05). It can be proposed that marketing of head-type kimchi cabbage as a fresh-cut vegetable could be enhanced due to the different quality characteristics of its leaf parts.

• Food Science and Preservation
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• v.15 no.4
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• pp.576-581
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• 2008

The chemical components of the wild vegetables Solidago virgaurea spp. gigantea, Aster glehni var. hondoensis, and Aruncus dioicus var. kamtschaticus grown on Ulleung island, Korea were investigated. In dried powders of these three wild vegetables, the contents of moisture, crude protein, crude lipid, crude fiber, and crude ash were 3.77-5.72%, 15-29%, 3.50-6.68%, 4.00-6.01%, and 8.70-10.54%, respectively. There were differences in the levels and nature of organic acids in the vegetables; the major organic acids were succinic acid, citric acid, and malonic acid. The major free amino acids in the vegetables were glutamic acid, aspartic acid, arginine, and phenylalanine. Riboflavin contents were 90 mg% in Aruncus dioicus var. kamtschaticus and $2{\sim}3$ mg% in the other vegetables. The thiamin contents were 113 mg% in Aster glehni var. hondoensis, 85 mg% in Aruncus dioicus var. kamtschaticus, and 71 mg% in Solidago virgaurea spp. gigantea. The major fatty acids in the three vegetables were linolenic acid, linoleic acid, and palmitic acid; 60% of total fatty acid was linolenic acid. Catechins were present at 5.37 mg% in Aruncus dioicus var. kamtschaticus, 2.46 mg% in Solidago virgaurea spp. gigantea, 1.29 mg% in Aster glehni var. hondoensis.(-) ECC was detected in only Aruncus dioicus var. kamtschaticus. The contents of Ca, P, and Na in the three vegetables were higher than the contents of other minerals.

• Journal of Life Science
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• v.22 no.12
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• pp.1704-1711
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• 2012

Three mold strains, Aspergillus oryzae (A. oryzae), Aspergillus kawachii (A. kawachii), and Monascus purpureus (M. purpureus), were tested for fermentation of Acanthopanax senticosus (A. senticosus) leaf, root, stem, and fruit powders. The fermented A. senticosus materials were then tested for bioactive materials (phenolic compounds, flavonoids, mineral and fatty acid) and biological activities (DPPH free radical scavenging activity, reducing power, and tyrosinase inhibition activity). The highest concentrations of phenolic compounds and flavonoids were NFASL at 4.11% and MPASL at 2.30%, respectively. Major minerals were Ca, K, Mg and Mn. Major fatty acids in fermented A. senticosus powders were palmitic, linolenic, and stearic acids. DPPH radical scavenging activity was slightly stronger in non-fermented than in fermented A. senticosus. Tyrosinase inhibition activity was stronger in fermented A. senticosus than in NFAG. The Fe/Cu reducing powers were stronger in non-fermented A. senticosus than in any of the fermented A. senticosus materials. Overall, the study provides basic data for understanding the biological activities and chemical characteristics of A. senticosus fermented by molds for the development of functional foods.

• Food Science and Preservation
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• v.16 no.4
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• pp.549-553
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• 2009

The mushroom Agrocybe chaxingu was analyzed to evaluate the nutritional value of this potential food. The moisture content was 88.9% in the fruiting body of A. chaxingu, and the proportions of ash, crude fiber, carbohydrate, crude protein, and crude fat were 0.9%, 1.4%, 7.2%, 2.5% and 0.4% by weight, respectively. A. chaxingu contained 1.29 mg/100 g edible weight of vitamin $B_1$, and the contents of vitamin $B_2$, vitamin $B_3$, and vitamin C were 0.15 mg, 0.32 mg, and 18.4 mg per 100 g of wet mushroom. Potassium (3,318 mg/100 g, dry basis) was found at the highest concentration in A. chaxingu. In addition, the mushroom contained many other minerals (all figures are mg per 100 g of dried mushroom) such as phosphorus (909.7), magnesium (141.3), sodium (12.7), zinc (7.4), iron (6.5), copper (2.8), manganese (0.8), and nickel (0.1). The results indicate that A. chaxingu is a valuable nutrient source.

• Journal of the Korean GEO-environmental Society
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• v.14 no.8
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• pp.29-35
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• 2013

The objective of this research was to investigate the effect of various clay materials on the growth and change in mineral composition of soybean sprout. Further effect of sericite concentration on growth of soybean sprout was optimized. The experiments were carried by using three different viz., loess supernatant, tap water and sericite supernatant. From the obtained results it was found that a significant growth in soybean sprouts was observed while using sericite supernatant this growth was 14.71% and 50% more total growth than that of loess supernatant and tap water. In addition, using sericite supernatant the length of root of soybean sprouts was reached 17.30% and 36.50% longer than that of tap water and loess supernatant. The plausible reason for this growth using sericite supernatant may be due to the presence of various mineral($K^+$, $Ca^+$) in sericite. Further the mineral contents of sericite supernatant were 11.56% and 13.48% more than that for loess supernatant and tap water. Among the various sericite concentration used it was found that 100g/L sericite supernatant showed significant growth rate compared with other fractions. From the obtained results comparing with all materials 100g/L sericite concentration was economic for the cultivation of soybean sprout.

• Journal of Energy Engineering
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• v.25 no.4
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• pp.1-6
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• 2016

Seawater desalination plants generally have two inherent problems which stem from energy inefficiency and desalination concentrate management. The former has been somewhat resolved thanks to the innovative methods in utilizing new and renewable energy resources whereas the latter still has much issues to be dealt with. This paper introduces the application of a desalting process for the disposal of desalination concentrate (especially, Mg) and to improve its cost effectiveness of a MVR seawater desalination plant built in Jeju. Principal component analysis on the desalination concentrate has revealed a steady reduction of Mg with the application of the desalting process verifying its functional reliability. Also, it was found that our MVR seawater desalination plant is not only energy efficient but also could be effectively applied for the dual purpose of fresh water production and concentrate management.