• Journal of Ginseng Research
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• 제24권3호
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• pp.148-152
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• 2000

한국홍삼과 중국홍삼의 향 유형 및 강도를 관능적으로 비교한 결과 한국홍삼은 단 냄새와 구수한 냄새가 강한 반면에 중국홍삼은 흙 냄새, 나무냄새 및 건초냄새가 강한 경향이었다. 한국홍삼의 구수한 냄새와 단 냄새는 헤드스페이스추출물의 에테르분획, 그 중에서도 중성부에서 강하게 감지되었다.

• 한국식품영양과학회지
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• 제33권5호
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• pp.852-856
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• 2004

쌈샐러드 11종류의 일반성 분과 구조탄수화물인 식이섬유류(TDF, IDF, SDF, NDF, DFi)를 측정하였다 쌈샐러드의 조단백질과 조지방 함량이 2∼3배 높았으며 조회분의 경우 곡류보다 7배 가량 높았다. 전조물 기준으로 TDF 함유량에 있어서 Costamary가 32.61%로 낮았으나 Treviso가 41.22%로 높았으며, IDF는 Red leaf beet이 21.58%로 낮았고, Treviso가 28.95%로 높았으나 SDF는 Nakai이 6.60%로 낮았고 Common danelion이 14.70%로 매우 높았다. 건물기준으로 total carbohyate는 Salad bowl이 73.65%로 가장 높았고 Red leaf beet이 36.30%로 가장 낮았고, NDF는 Nakai가 48.83%로 가장 높았고 Red leaf beet이 29.60%로 가장 낮았다 ADL은 Salad bowl이 27.65%로 높았고 가장 낮은 것은 Com salad로 2.92%였으며 hemicellulose는 Nakai가 22.55%로 가장 높았고 Salad bowl이 2.15%로 낮았다.

• Toxicological Research
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• 제6권1호
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• pp.29-40
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• 1990

Cytotoxic effects of cytosine arabinoside and vinblastine on cultured fibroblasts were determined by colorimetric assays of neutral red (NR) and tetrazolium MTT, and by mutagenicity tests . Cytosine arabinoside and vinblastine were highly toxic by showing that concentrations of NR-50 and MTT-50 of two drugs were lower than 100 ${\mu}$M. At mid-point cytotoxicityvalue of two drugs, frequencies of micronuclei and SCEs were very high and chromosome showed structural abnormalities. The sizes of micronuclei formed by vinblastine were larger than those induced by cytosine arabinoside. These results suggest that cytosine arabinoside and vinblastine have highy mutagenic and severe cytotoxic effects on the cultured mouse fibroblasts.

• 한국염색가공학회지
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• 제12권1호
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• pp.12-16
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• 2000

Silk and cotton fabrics were dyed with Parmelia tinctorium that is a kind of lichen. Dyeing solution was prepared by fermentation in aqueous ammonia solution. The effects of pH and temperature in dyebath on dyeability were investigated. The maximum K/S value of each dyed fabrics was showed in 480nm. Silk fabrics showed better dyeability than cotton. Silk fabrics dyed well in acidic or neutral dyebath at $80^\circ{C}$ and cotton fabrics in neutral dyebath at $50^\circ{C}$. Both of silk and cotton fabrics showed poor dyeability in basic dyebath because of colouring anionic groups in lichen. The Munsell values of dyed silk fabrics were appeared in R(red) range, and them of cotton fabrics in YR(yellow-red) range. Light fastnesses of dyed fabrics were as poor as 2 or 2-3 grades. Also, Laundering fastnesses of dyed silk fabrics were as poor as 2 grade and those of cotton fabrics were 3 or 3-4 grades. But dry-cleaning fastnesses of all dyed fabrics were good.

• Natural Product Sciences
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• 제20권2호
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• pp.119-125
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• 2014

According to the results of my study on the chromatographic analysis of fresh ginseng (Panax ginseng C. A. Meyer) roots, most of the contents of protopanxadiol ginsenosides $Rb_1$, Rc, $Rb_2$, and Rd are derived from the corresponding malonyl ginsenosides in fresh ginseng by a heat process. Also, I confirmed that acetyl ginsenosides are naturally occurring constituents in fresh ginseng, not decarboxylates from malonyl ginsenosides. Seven neutral ginsenosides $Rg_1$, Re, Rf, Rc, $Rb_1$, $Rb_2$, and Rd were transformed to specific conversions in red ginseng preparation conditions. The conversion paths progress by three rules concluded from my study. These conversion rules are I: the ether bond is stable at positions 3 and 6 in the dammarane skeleton, II: the ether bond between sugars is stable in glycosides, and III: the ether bond to glycosides is unstable at position 20 in the dammarane skeleton.

• Toxicological Research
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• 제9권1호
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• pp.45-60
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• 1993

The present study was carried out to evaluate the cytotoxicity of cadmium on cultured rat fibroblasts. The colorimetric assays of neutral red and tetrazolium MTT, the lactatedehydrogenase activity, the amounts of total protein, the rate of DNA synthesis, the amounts of unscheduled DNA synthesis, the frequency of sister chromatid exchange, the releasing rate of intracellular calcium, and light and electron microscopic studies were performed on cultured rat fibroblasts maintained in the media containing various concentrations of cadmium. The results were as follows: The neutral red(NR) and MTT values were decreased dose-dependently by cadmium, and the NR90, NR50, MTT90 and MTT50 values of cadmium were 0.2mM, 21.5mM, 1.0Mm and 60.0Mm, respectively.

• Journal of Ginseng Research
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• 제23권1호
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• pp.8-12
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• 1999

알코올에 중독된 실험동물에 홍삼 산성다당류(AcPS)를 4주간 투여하며 성장지표를 비교해 본 결과, 알코을 중독시에 나타나는 영양 및 대사의 파괴를 막아주거나 경감시켜 지방간 및 간장비대 상태를 크게 호전시켰다. 혈중 지질대사 요소인 혈중 총콜레스테롤, HDL-cholesterol 및 중성지질의 농도는 정상치에 가깝게 낮추어 고지혈증상을 유의적으로 개선시킴을 확인할 수 있었으며, 혈중농도와 마찬가지로 간장조직중 농도에 미치는 영향도 신뢰성있는 개선 효과를 인정할 수 있었으며, 이러한 효과는 AcPS의 투여기간($1\~4$주)에 비례하는 것으로 나타났다.

• Bulletin of the Korean Chemical Society
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• 제26권8호
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• pp.1170-1176
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• 2005

The structures and conformations of ortho-, meta-, and para-methyl red (MR) upon proton gain and loss were studied by density functional calculations, and compared to methyl yellow for the effects of a carboxyl substitution. Internal hydrogen bonding causes the geometry of neutral o-MR planar, otherwise twist. Monoprotonated species of MR are planar where the proton is attached to $\beta$-azo nitrogen. This loses its azo character a bit, and shows strong delocalization characterized as a quinonoid canonical structure. Di-protonated species of MR is proved to hold two protons at the amino and $\alpha$-azo nitrogen atoms, and planar. It regains somewhat of its azo character, but still shows fairly delocalized property in terms of carbocationic canonical structures. The carboxyl substitution on 4-dimethylamino-trans-azobenzene structure has some delocalization effects on the geometry or conformation of MR derivatives whether neutral, mono-, di- or de-protonated.

• Journal of Information Display
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• 제10권4호
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• pp.164-170
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• 2009

The dependences of color gamut size and power consumption on the area ratio of the neutral and green subpixels for the RGB-LED-backlight RGBW LCD were studied, in which the red- and blue-subpixel areas are the same and represent one-quarter of the pixel aperture area. It was found that the color saturation of the RGBW LCD can be improved through the use of a smaller neutral- and green-subpixel area ratio, at the expense of higher power consumption.

• 한국의류학회지
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• 제26권2호
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• pp.263-269
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• 2002

This research was conducted to establish the efficient use of the colored rice bran fur dyeing textiles. To investigate the fabric dyeability of the colored rice bran extract, the anthocyanin pigments were extracted with water of different temperature ranges of 40 ~ 8$0^{\circ}C$ and were dyed on silk fabrics with different dyeing temperature $25^{\circ}C$~6$0^{\circ}C$, at acidic pH and neutral pH, respectively. Aluminum chloride was preheated with mordant K/S value and dyeing fastness of dyed silk fabrics were examined. The anthocyanins of the colored rice bran were stable and red color at acidic pH, red purple or purple blue at neutral pH, but unstable, blue color at alkaline pH. If extracting temperature and dyeing temperature of dyeing solution were higher, the dyeability was high, but the color of dyed fabric showed red tone. When extracting temperature was 8$0^{\circ}C$ and dyeing temperature of dyeing solution was 6$0^{\circ}C$, the dyeability was best. Without mordant, the dyeability of silk fabrics was higher in acidic pH than in neutral pH solution. With mordant, the dyeability was higher than without mordant, and also higher in acidic pH. Pretreatment of aluminum chloride resulted in the increase of color intensity and stability. The laundering fastness of dyed fabrics was good from grade 5 to grade 3-4. Because of the anthocyanins sensitivity on light radiation, the light fastness of dyed fabrics was poor from grade 3 to grade 1-2.