• 대한수의학회지
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• 제44권1호
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• pp.29-40
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• 2004

Because cleaning products are part of our everyday lives, it is essential that they should not present significant risks to health. However, many petrochemicals in most soaps and detergents can be absorbed through the scalp and skin and, over time, accumulate in the organs and tissues. This accumulation may result in brain, nerve, and liver damage. Therefore, it is interested in developing non-harmful detergent. According to Korea Research Institute of Chemical Technology, GC-100X may be non-harmful and non-corrosive alkaline ionic water (pH 12). It is composed of hydroxyl radicals and supplemented with xylitol. To evaluate influence of GC-100X on rats and beagles, GC-100X was diluted with distilled water (25%, 50%, and 100% solution respectively). Each of diluted GC-100X was daily treated per oral. In body weight analysis, urinary analysis, ophthalmological test and autopsy, we did not find any significance, but in serum biochemical analysis and hematological analysis, we found some significances in middle dose group compared with control group. These significances in serum biochemical analysis and hematological analysis may be not induced by GC-100X, because it was not found to be significant from control group in histopathological examination. Thus, it is concluded that NOEL(No Observed Effect Level) of GC-100X may be higher than all treatment doses used in this study, and GC-100X may be a non-toxic detergent.

• 패션비즈니스
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• 제10권1호
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• pp.120-131
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• 2006

Recently, it has been reported that chemical hair coloring can cause allergic reactions, the toxicity issue of chemical hair color was issued. Therefore, there is an increasing interest in the hair coloration technique using non-toxic and bio-compatible hair color gotten from natural resource. In this study, the possibility using fermented Indigo as natural hair coloring agent was investigated. Bleached hair samples were dyed using Indigo, and the effect of dyeing frequency, the physical change after dyeing, color, surface and cross-section characteristics, and tensile property were also studied. In addition, the protection property of cationic detergent finishing on damaged hair samples were also studied. The following conclusions are made; 1. While bleached hair samples with low value showed the negligible effect of repeated dyeing, bleached hair samples with high value showed the good effect of repeated dyeing. 2. Hair sample dyed with Indigo showed a high light-fastness, however, tensile strength and elongation showed very low values (high damage on hair sample). 3. Cationic detergent finishing did not affect on the colorfastness because of decoloration after dyeing, however, it increased the smoothness of hair sample, and therefore, can use as protectant of damaged hair. 4. Hair scale was damaged after dyeing. It seemed that the alkali, potassium carbonate, increased pH of dyeing bath to 11, as a result, the hair was swollen, weaken, and dissolved on the prolonged dyeing time. Dyed hair sample became stiff and fine. 5. The color difference was 4.62 (a high fastness value) in the test of sunlight exposure, shampoo, cationic detergent finishing, and acid perspiration fastness.

• Journal of Animal Science and Technology
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• 제49권1호
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• pp.67-78
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• 2007

본 연구에서는 새송이버섯 병재배방식과 느타리버섯 봉지재배방식의 재배단계별(최초 배지 단계, 균사체 배양 후 배지 단계, 자실체 수확 후 폐배지 단계)로 배지의 화학 성분의 흐름을 추적 구명하고, 독성 중금속(Cd, Pb, As)과 잔류 농약으로부터의 안전성을 평가하였다. 양 재배방식 공히 최초 배지와 비교해서 자실체 수확 후의 영양소의 양적 감소 정도에 있어서 총무게는 평균 29%, 건물과 유기물은 공히 21~25%, 섬유소는 19~22% 감소하였다. 재배단계에서 분해 이용된 유기물 량의 2/3~3/4은 섬유소(NDF)였으며, 이용된 섬유소의 주된 성분(50~70%)은 hemicellulose이었다. 균사체 성장이 배지의 화학적 성분에 미치는 효과는 새송이버섯의 병재배 시에는 미미하였으나(P>0.05), 느타리버섯의 봉지재배 시에는 ADF 성분을 제외한 거의 모든 유기물과 무기물이 분해 소실되는 것으로 나타났다(P<0.05). 자실체는 봉지재배 시보다는 병재배 시에 배지내의 영양소를 매우 활발하게 흡수하였다(P<0.05). 수확한 자실체는 폐배지보다 조단백질, 비섬유성탄수화물, 조회분 성분이 훨씬 높고(P<0.05), NDF 성분은 훨씬 낮아서(P<0.05), 폐배지의 화학적 조성에 바람직하지 못한 영향을 미치는 것으로 나타났다. 폐배지는 독성 중금속과 잔류농약의 오염이 거의 없어 위생적으로 안전하였다. 결론적으로 최초 배지와 비교해서 폐배지는 난분해성 섬유소 성분이 증가하고, 조단백질 중 순수단백질이 줄고, 비소화성단백질이 느는 등 질적으로 떨어져서 사료영양적 가치는 상대적으로 하락하는 것으로 나타났다.