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KMID : 0380020030180050393
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Korean Journal of Biotechnology and Bioengineering
2003 Volume.18 No. 5 p.393 ~ p.397
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The Effect of Corrosion Inhibitors on Antimicrobial Activity of Biocide in Water-soluble Cutting Fluid
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Kim Hyun-Ju
Kim Sung-Bae
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Abstract
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The effect of corrosion inhibitors on antimicrobial activity of biocides (Kathon 886 MW, Triadine 3, Triadine 10 and Grotan BK) was investigated using the Pseudomonas aeruginosa which frequency of occurrence in contaminated fluids is very high and its growth and survival is excellent. When a biocide was used with a corrosion inhibitor, the antimicrobial activity of it was affected by the corrosion inhibitor used. The antimicrobial activity of Kathon 886 MW increased when corrosion inhibitor (each of SS 510, MEA) was used. Triadine 3, Triadine 10, Grotan BK showed the similar trend of antimicrobial effect for the corrosion inhibitors used. Their antimicrobial activities increased when the corrosion inhibitor such as CP-105, CP-E-7 and MEA was used individually. The antimicrobial activity of each corrosion inhibitor was also compared. The results showed that CP-E-7 and MEA was bioresistant and the other corrosion inhibitors were biosupportive. The antimicrobial activity of biocides was in the order of Triadine 10 < Triadine 3 < Kathon 886 MW < Grotan BK.
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KEYWORD
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Water-soluble cutting fluid, antimicrobial activity, corrosion inhibitor, biocide
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