• Journal of Pharmaceutical Investigation
• /
• v.4 no.4
• /
• pp.38-45
• /
• 1974

Sulfur had been used for the medical fields as fungacidal bacteriocides and gelatolytic agent from ancient B. C 700, their prepartiones contained the sulfur are restrict to freely medication, the restrutive reasones are the it's preparation stabilized sparing solubility, and limit to pharmaceutical development of colloidal sulfur-self. Anthors prepared white lotion, registered on U.S.P XIII from the colloidal sulfur, by the method midified buku zawa make the stabilized lotion by the various fatty alkyl sulfates, and the result obtained are as follows the suspending agents for stabilize to the colloidal sulfur are the fatty alcohol sulfates than natural clay on the imbibition appeareuce and usefulnss. The adequate quantities of stearic acid in lotion base are $1.5{\sim}2.0$ percent for refluidity and pourability. The carbon numbers in alkyl radical used fatty alcohol sulfates as anionic surfactants are maxture of $12{\sim}18$ about efficiency, as possible as, the electrolyte is removed from the white lotion.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.45 no.5
• /
• pp.625-633
• /
• 2016

Allium hookeri is known as a healthy food since it contains larger amounts of sulfur compounds than commonly known alliaceous plants. The antioxidant and anti-inflammatory effects of A. hookeri were compared between two types of extracts, $80^{\circ}C$ water and 95% ethanol extracts of A. hookeri roots. A. hookeri root 95% ethanol extracts displayed superior total polyphenol content, antioxidant activity [1,1-diphenyl-2-picrylhydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) radical scavenging activity], and anti-inflammation activity than those of water extracts (P<0.05). We studied the effects of A. hookeri root 95% ethanol extracts (95% ethanol extracts group: AHE) on acute alcohol-induced intoxication in mice. AHE [250, 500, and 1,000 mg/kg body weight (BW)/d] was orally administered to the study group once a day for 1 week. On the last day of AHE treatment, 40% ethanol (10 mL/kg BW) was orally administered to induce acute liver injury. The blood alcohol concentration of mice treated with AHE was significantly lower compared to the control group (P<0.05). The levels of hepatic aspartate aminotransferase and alanine aminotransferase were lower in the AHE-treated group than the control group (P<0.05). The RT-PCR results for alcohol dehydrogenase and aldehyde dehydrogenase measured based on mRNA in liver tissues showed that enzyme activities were higher in the AHE-treated group than in the control group at a low blood alcohol concentration.

• Proceedings of the Korean Society for Applied Microbiology Conference
• /
• 1986.12a
• /
• pp.521.3-522
• /
• 1986

A gene encoding alcohol dehydrogenase (ADH) in Zymomonas mobilis was cloned into E. coli JM 83 with plasmid pUC 9. The ADH produced by the E. coli transformant was purified bysonication, (NH$^4$)2SO4 fractionation, Affi-Gel blue and hydroxylapatite chromatography. The ADH produced by Z. mobilis was also purified by the same procedures. The two enzyme preparations were characterized and compared. It was found that the E. coli ADH was identical to one of two ADH isozymes of Z. mobilis. Analytical gel filtrations led to the conclusion that the molecule of E. coli ADH was composedv of four subunits having molecular weight of 40,000 (+1,000) dalton each The effect of metal ions on ADH activity and optimum pH were investigated.

• Proceedings of the Korean Fiber Society Conference
• /
• 1998.10a
• /
• pp.13-16
• /
• 1998

Poly(vinyl alcohol) (PVA) gels are easily formed via physical pathway. Most PVA solutions including PVA/water solution are well known to form thermally reversible gels at low temperature but these gels showed poor mechanical properties. In order to overcome this weak point, transparent crosslinked PVA hydrogels were prepared by electron beam irradiation or by chemical process with crosslinking agents or additives. (omitted)

• Proceedings of the Korean Fiber Society Conference
• /
• 2003.10b
• /
• pp.104-107
• /
• 2003

Poly(vinyl alcohol) (PVA) obtained by the saponification of poly(vinyl ester) like poly(vinyl acetate) o. poly(vinyl pivalate) is a linear semicrystalline polymer, which has been widely used as fibers for clothes and industries, films, membranes, medicines for drug delivery system, and cancer cell-killing embolic materials[1-3]. PVA fibers and films have high tensile and compressive strengths, high tensile modulus, and good abrasion resistance due to its highest crystalline lattice modulus. (omitted)

• Journal of The Korean Society of Agricultural Engineers
• /
• v.54 no.5
• /
• pp.9-16
• /
• 2012

In this study, the effect of metakaoline and silica fume on the bond performances of structural polyvinyl alcohol (PVA) fiber in cement mortar, including bond strength, interface toughness, and microstructure analysis are presented. Metakaoline and silica fume contents ranging from 0 % to 15 % are used in the mix proportions. Pullout tests are conducted to measure the bond performance of PVA fiber from cement mortar. Test results showed the incorporation of metakaoline and silica fume can effectively enhance the PVA fiber-cement mortar interfacial properties. Bond strength and interface toughness increased with metakaoline and silica fume content up to 10 % in cement mortar and decreased when the metakaoline and silica fume content reached 15 %. The microstructural observation confirms the findings on the interface bond mechanism drawn from the fiber pullout test results.

• Journal of Korea Technical Association of The Pulp and Paper Industry
• /
• v.36 no.2
• /
• pp.24-32
• /
• 2004

Toner used in xerographic printing process is hydrophobic powder with low surface energy. The toner ink film fused on paper surface can be efficiently detached from a fiber surface during pulping, but it does not fragment again into fine toner particles. Ink agglomerates that result have too large particle size to be deinked by flotation. The purpose of this study is to enhance toner agglomeration using 1-octadecanol for improving the toner removal by screening. The effect of pH, pulping temperature, and 1-octadecanol on toner agglomeration and removal by screening was investigated using image analysis methods. Results showed that the size of toner agglomerates increased substantially when pulping was carried out at high temperature under acidic condition. When toner agglomerates showed spherical shape, the particle removal efficiency of screening was improved.

• Journal of Life Science
• /
• v.28 no.6
• /
• pp.697-707
• /
• 2018

The aim of this study was to investigate the potential effects of extracts from silkworm (Bombyx mori L.) that was fermented with Bacillus subtilis KACC 91157 at the levels of 1%(v/w), 2.5%(v/w), and 5%(v/w) in alcohol-fed rats. Sprague-Dawley rats were divided into seven groups: normal group (N), alcohol treated group (C), silymarin treated group (PC, positive control), 5% silkworm powder treated group (SP5), 1% Bacillus subtilis-fermented silkworm powder treated group (BSP1), 2.5% BSP treated group (BSP2.5), and 5% BSP treated group (BSP5). The activities of AST, ALT, ALP, and LDH in the serum and the triglyceride concentrations in the liver and serum were increased by alcohol feeding but were reduced in the BSP5 group. In addition, the contents of total lipids, free fatty acids, and total cholesterol were increased in the alcohol-fed group but were reduced in the BSP5 group. The activities of ADH, ALDH and ADH, ALDH protein levels in the liver were increased in the BSP5 group. The TBARS contents in the liver, serum, liver mitochondria, and liver microsomes were slightly decreased in the BSP5 group compared to the C group. The hepatocytes in alcohol-fed rats contained numerous large droplets; however, BSP5 treatment prevented alcohol-induced lipid droplet accumulation in the hepatocytes. Based on these results, extracts from Bacillus subtilis-fermented silkworm (Bombyx mori L.) have significant potential for development into a functional health food that can improve alcoholic fatty liver conditions.

• Journal of Conservation Science
• /
• v.31 no.2
• /
• pp.95-104
• /
• 2015

Excavated archaeological cast iron objects in improper storage are quickly corroded and disintegrated into block and powder finally. Hence desalination treatment which is a way of removing internal corrosive factors, especially chloride ion, is an important process. But desalination is often omitted or objects are dehydrated by alcohol because the destruction of objects could occur during desalting. Although current desalting methods mostly use an aqueous alkali solution, $OH^-$ ions of water could accelerate corrosion and broaden internal cracks cause of high surface tension. Therefore this study experimented desalting using ethyl alcohol, which is low surface tension, to investigate an effect of desalination. As a result, desalting using ethyl alcohol showed the similar or more effective results of desalting using water. In addition, as aspects of desalting safety, ethyl alcohol desalting method was smaller destruction of objects and extraction of Fe from the objects than the aqueous alkali solution. However, this study explored the possibility of desalting methods using organic solvent in fieldwork, so the results would provide basic date for making the safe and effective desalting method for archaeological cast iron objects through further experiments.

• Journal of Life Science
• /
• v.18 no.4
• /
• pp.550-555
• /
• 2008

This study focused on alcohol fermentation properties of red ginseng extracts using Saccharomyces cerevisiae JF-Y3. Central composite design was employed to investigate the influence of red ginseng extract content ($10{\sim}50%$, v/v) and yeast extract ($0.5{\sim}2.5%$, w/v) on the properties of alcohol fermentation added with red ginseng extracts. Yeast cell growth was affected both by red ginseng extract content and yeast extract content, and red ginseng extract content had a greater effect on yeast cell number than yeast extract content. Yeast cell number increased along with decrease of the red ginseng extract content and with increase of yeast extract content. Alcohol content was maximal at 30% red ginseng extracts and 0.50% yeast extract and the predicted maximum value of alcohol content was 12.45%. Brix degree and total sugar content were significant within 1% level (p<0.01), and brix degree was affected both by red ginseng extract and yeast extract content. Total sugar content was significantly affected by red ginseng content.