• Title/Summary/Keyword: pasting agent

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Effect of Sizing Agent on the Enzymatic Finishing of Tencel Fabric by Cellulase (셀룰라아제에 의한 텐셀직물의 가공에 있어서 호제의 영향)

  • 최창남;황태연;고봉국;박원규;변수진;이웅의;정상귀;조성용
    • Textile Coloration and Finishing
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    • v.15 no.1
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    • pp.8-14
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    • 2003
  • The effect of pasting agent on the defibrillation of Tencel fabric was investigated. It was evaluated by the weigth loss of fabric when the fabric was treated with cellulase containing various kinds of pasting agents. The surface appearance of Tencel fabric was checked by SEM. Under the treatment condition without pasting agent, the weight loss of fabric was high at pH 5.0 and $60^\circ{C}$. This means that the cellulase activity was high at this condition. By increasing the concentration of carboxymethyl cellulose(CMC), the weight loss of fabric was decreased monotonously. This tendency was not appeared in other pasting agents. CMC is synthesized by the reaction of chloroacetic acid and cellulose. The glucose units may be remained after the reaction. So, it was considered that the degradation of glucose unit in Tencel was decreased, because cellulase had to attack both Tencel and CMC.

Studies on Properties of Avian Reovirus Isolated in Korea (국내에서 분리한 닭 레오바이러스의 성상에 관한 연구)

  • 김성식;박병옥;김순재
    • Korean Journal of Veterinary Service
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    • v.15 no.1
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    • pp.67-80
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    • 1992
  • Avian reoviruses have been implicated in respiratory disease enteric conditions including Cloacal pasting in young thicks, pericarditis, hydropericardium, anaemia with swollen spleen and liver and petechiation of skeletal muscle and viral arthritis. This study was conducted to examine properties of reovirus field 3 strains isolated from affected broiler from several farms. An infectious agent was isolated from leg tendons and intestine of broiler with clinical tenosynovitis. The agent grew well on the chicken embryo kideny cells(CEK). One of them produced cytopathic effects(CPE) of round type and formed intranuclear inclusions, and the other was characterized by CPE of syncytical type and cytoplasmic inclusion. The properties and serological classification of field strains were examined by hemagglutin test, virus neutralization test, agar gel precipitin, electropherotype. They showed no hemagglutination reactions and not well neutralization and to possess common antigens detectable by AGP test. RNA electropherotype presented 10 segment band as the previous report. These data suggest that the field strains and standard strains (1133, 1733) may be the same group.

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Characteristics of grain powder as a viscosity agent (증점제로서의 곡류 가루 특성 연구)

  • Sul, Yoona;Han, Jung-Ah
    • Korean Journal of Food Science and Technology
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    • v.50 no.6
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    • pp.608-613
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    • 2018
  • For increasing both the viscosity and intake of calories and nutrients, four cereal powders: Goami (GR), waxy barley (WBL), germinated brown rice (GBR), and oat (OT) were added to rice porridge, and the properties of the porridge were compared with that containing a commercial thickener. Among the samples, the porridge with WBL showed the highest viscosity, whereas that with GR showed the lowest. With regards to color properties, the porridge with GR showed the highest whiteness, while those with OT or GBR had the highest yellowness, affecting the color of the rice porridge. The viscosity level of porridges with cereal powders did not reach that of the porridge with the commercial thickener at $90-95^{\circ}C$; however, at $55-60^{\circ}C$, the viscosity of the porridge with cereals was enough to replace the commercial thickener. With regards to organoleptic tests, the overall acceptability was mainly attributed to color, and there were no significant differences in other properties. From these results, it seems that the cereal powders could be suitable substitutes for commercial thickeners.