• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.42 no.3
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• pp.14-21
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• 2010

Three different species of cattails (Typha orientalis, Typha angustata, Typha latifolia) cultivated in South Korea were examined as raw materials for the production of pulp and paper. Soda pulping with anthraquinone was used for the stems and the leaves of cattail, separately. Addition of anthraquinone in soda pulping improved the yield greatly. Chemical components between three cattail species and within each species (leaves and stem) gave little differences. Average fiber length of the bleached cattail fibers was a little shorter than that of the HwBKP of Eucalyptus. Average fiber width of the cattail fibers was a half of that of the HwBKP. Compared to the HwBKP, cattail pulp gave higher breaking length, higher opacity, and better smoothness at equivalent freeness.

• Food Science and Preservation
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• v.4 no.2
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• pp.173-180
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• 1997

The effects of sugars and heating methods on the sugar infilteration, hardness, color and organoleptic characteristics were investigated for quality improvement of sugared chestnuts. Among the tested sugars, isomaltooligosugar was the most effective on the rate of sugar infilteration. High temperature increased the rate of sugar infilteration during sugaring process, but color and flavor were deteriorated at 9$0^{\circ}C$. The most suitable temperature for sugaring process was 7$0^{\circ}C$. The product sugared with fructooligosugar recoreded the highest score in hardness, odor and preference than any other sugars tested and increased the rate of sugar infilteration when mixed with sugar at same amount. The changes of soluble solids in chestnuts boiled with microwave oven were ranged from 18。Brix to 32。Brix, while chestnuts heated in general were from 18。Brix to 28。Brix. Chestnuts boiled with microwave heating were sugared rapidly. The hardness of boiled and sugared chestnuts was lower when treated with microwave than with general heating. Hunter's L and b value of sugared chestnut treated with microwave decreased during processing but a value somewhat increased.

• 한국신재생에너지학회:학술대회논문집
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• 2008.10a
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• pp.234-237
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• 2008

분류층 가스화기에서 가스화기 운전 온도는 슬래그의 원활한 배출과 가스화기 성능 등에 영향을 미친다. 가스화기 운전온도는 또한, 석탄 및 산소 소비량에도 영향을 미쳐 궁극적으로는 가스화 플랜트의 주요 설비 용량을 결정하는 주요 요인중의 하나이다. 가스화기 운전 온도가 일정수준 이상으로 증가할 경우 냉가스 효율이 저하되고 가스화 성능에 약 영향을 미친다. 본 논문에서는 Coal 및 Flux 공급장치, 슬래그 배출장치 당의 구성을 설명하고 Flux 투입량에 따른 슬래그 Tcv, 가스화기 성능 등을 예측하였다. 또한, 300MW IGCC 실증 가스화플랜트 엔지니어링을 위한 예비단계로 석회석 투입에 따른 Flux 공급장치를 포함한 Feeding 설비 용량, 슬래그처리설비 용량, 가스화기 내부 및 출구 적정온도를 예측하였다.

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 2003.10a
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• pp.213.3-214
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• 2003

국내에서 생산된 쌀 6품종의 맥주제조특성을 국내 및 미국의 맥주회사에서 사용되는 쌀로가 비교해 볼 때 국내쌀의 수분함량은 11.4∼12.6% 로 미국 맥주회사에서 사용되는 쌀의 수분함량 10.7% 보다 높았다. 장립종(long grain)이며 Indica 품종인 IR36은 전분량이 적으나 단백질 함량이나 amylose 함량이 높았다. 맥아 60%에 쌀 40%를 혼합하여 맥즙을 제조한 결과 색, 점도, pH, 수용성단백질, 추출물 함량(％ extract), 당의 조성에서 Indica 품종은 Japonica 품종과 큰 차이를 나타내지 않았다. 국내에서 생산되는 쌀로 제조된 맥즙은 수용성 단백질, pH, 점도 등에서는 미국산 쌀로 제조된 맥즙과 큰 사치를 나타내지 않았으나 추출물함량은 약간 낮은 것으로 나타났다. 쌀을 혼합하여 제조한 맥즙의 glucose 와 maltose 함량은 맥아만으로 제조된 맥즙보다 더 낮았다.

• The Korean Journal of Food And Nutrition
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• v.8 no.1
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• pp.43-49
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• 1995

This studies were carried out to purification and seperation of chitooligosaccharides which containing excellent biological active substance. After deacetylation of chitosan (DAC%), DAC-45%, DAC-70%, DAC-95% and DAC-99% were used substrates and hydrolyzed by chitosanase (Bacillus pumilus BN-262) DAC-99% has excellent hydrolyzate which contained several chitooligosaccharides. Therefore, chitosan was hydrolyzed DAC-90 as substrate by chitosanase, and then purified and seperated of chitooligosaccharides Gel filteration and HPLC. This oligosaccharides composed with GlcN0, GlcN2, GlcN3, Glc5 and GlcN6.

• Journal of Korean Association for Spatial Structures
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• v.19 no.1
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• pp.37-44
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• 2019

Yangjindang house, which is located in Sang-ju province of South Korea, is one of the special Hanok structures dated back to Joseon dynasty. This study aims to examine structural safety of the Yangjindang wood frame building considering dynamic parameters such as the natural frequency and damping ratio. The numerical model of the wood frame building is implemented using Midas Gen, especially the wood joint where column and beam were connected. The behavior of the actual frame building was compared with the modeling results. In addition, structure responses such as shear force, axial force, flexural moment and deflections were calculated and compared with the allowable limits. Numerical results show that, generally, despite of some local members shear failure, Yangjindang's structural response does not exceed the limitation according to current standards.

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.13 no.1
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• pp.69-80
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• 2002

The grains were used as solid-substrate for the cultivation of basidiomycetes. The grains were fermented with Ganodema lucidum 7094, Fomitella fraxinea 81003, Phellinus igniarius 26005, and its free sugar composition was investigated. For the mass cultivation of mycelia, the hydrated grains with cold water were put into the plastic bottle. The mycelial growth rate in the bottled grains was high in the early stage with inoculation of homogenized mycelium. The activity of mycelium was maintained by adding sterilized water in the middle of cultivation. There was marked difference in the content of total free sugar and composition ratio of free sugar according to kinds of basidiomycetes. The content of free sugar increased far more in grains fermented with mycelium than in grains which was not fermented.

• KSBB Journal
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• v.9 no.5
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• pp.450-456
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• 1994

The effects of sucrose on cell growth and anticancer drug taxol production were investigated in cell suspension cultures of Taxus cuspidata. The cells were cultured at various concentrations of sucrose (20 to $100g/\ell$). The highest specific growth rata was achieved at $40g/\ell$ of sucrose as 0.076 day-1 and the highest final cell density, 34 g DCW/$\ell$ after 25 days of culture, was obtained at $60g/\ell$ of sucrose. The cell yield(Yx/s) was found to be 0.55g cell/g sucrose and doubling time (Td) was 9.12 day. High concentration of sucrose (80, $100g/\ell$) and the addition of osmoticum enhanced the production of taxol significantly. The maximum taxol production was $1.36mg/\ell$ at $80g/\ell$ of sucrose, which was 0.01% as a specific content.

• Applied Biological Chemistry
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• v.36 no.4
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• pp.310-314
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• 1993

High performance liquid chromatographic method using a TSK-gel amide 80 column and isocratic elution with acetonitrile-water (63 :35 ;v/v) mixture was used for the separation and the quantitation of fructo (GF2-GF7)- and inulo-oligosaccharides (F2-F4). Retention time of each standard carbohydrate was highly reproducible. Standardization curves obtained by plotting the peak areas against the amounts of each carbohydrate showed very high coefficient of determination$({\ge}0.9884)$ and similar slopes, and a wide range of y-intercepts. Our results suggest the use of each Pure oligosaccharide for its own standardization curve instead of using a certain carbohydrate as an internal standard.

• Journal of Embryo Transfer
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• v.18 no.2
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• pp.91-96
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• 2003

The aim of this study was conducted to evaluate the effect of sugar kinds and combination of various sugars on acrosome damage of post-thaw spermatozoa in canine. The extender used in this study was Tris-citric acid extender (Tris-buffer) supplemented with 20% Egg-yolk, 8% glycerol, 1% Equex STM paste, and 70 mM sugars such as monosaccharide (fructose and xylose) and disaccharide(trehalose). To evaluate of sugar combination, the sugars supplemented in Tris-buffer were combined such as control (fructose, xylose, trehalose), two combinations (Fru+Tre, Fru+Xyl, Tre+Xyl) and three combinations (Fru+Tre+Xyl). The acrosome damage rate of post-thaw spermatozoa in Eosin B & Fast Green stain in Fruc+Tre was higher than those in fructose, trehalose, xylose, Fruc+Xyl, Tre+Xyl, Fruc+Tre+Xyl (83.0$\pm$5.6 vs. 82.3$\pm$3.1%, 81.7$\pm$2.1%, 72.0$\pm$2.0%; 80.3$\pm$4.5%, 76.7$\pm$3.8%, 81.0$\pm$5.6). The motility after CASA analysis in Fru+Tre was higher than those in Fru+Tre+Xyl, Tre+Xyl, Fru+Xyl, Xylose, Trehalose, Fructose(79$\pm$6 vs 75$\pm$3, 74$\pm$8, 71$\pm$11, 70$\pm$4, 66$\pm$15, 63$\pm$ 12%). However, the progressive motility after CASA analysis in Fru+Tre group was higher than those in Fru+Tre+Xyl, Tre+Xyl, Fru+Xyl, Xylose, Trehalose, Fructose (67$\pm$7, 64$\pm$3, 62$\pm$6, 61$\pm$8, 60$\pm$2, 57$\pm$13, 53$\pm$10%). The results indicated that the acrosome damage & progressive motility of post-thaw spermatozoa in 70 mM Fruc+Tre (two combination) following Eosin B & Fast Green stain and CASA analysis.