Bactericides, hydrogen peroxide

Bacteria, ozone disinfection, 616 Bactericides, hydrogen peroxide, 623 Baeyer-Vilhger oxidation, 538-56, 551-66 ketones, 784-7 tin(lV) chloride, 786-7 peroxyester determination, 700-1 Base-catalyzed reactions... 

The overall advantage of quaternary compounds is that their dosages are very low 1-2 ppm per week only, where we see that Baquacil, although a good bactericide, must be dosed in such a way that we obtain about 100 ppm to kill the algae and some 40 ppm of hydrogen peroxide (H2O2). 

Cavitation induced in any liquid system will result in the formation of radicals (see Section4.2.2). In the case of water sonication one chemical product is hydrogen peroxide which, together with the radical species provides a powerful bactericide and oxidant. 

Hydrogen peroxide is nsed in the food industry due to its bactericidal action it... 

Hydrogen peroxide is used in the food industry due to its bactericidal action67, l94,195 it was proposed as the bleaching agent of choice for apple pomace produced in apple juice and cider manufacture196. 

The results showed that honey with an average level of hydrogen peroxide activity is bacteriostatic at 4 to 8% (v/v) and bactericidal at 5 to 10% (v/v). The nonperoxide activity of an average manuka honey is bacteriostatic at 5 to 11% (v/v) and bactericidal at 8 to 15% (v/v). Activity (just bacteriostatic) was not seen with artificial honey unless it was at 20 to 30% (v/v), clearly showing the importance of factors other than sugar and acidity. 

Reiter, B., Marshall, V.M.E., Bjorck, L., and Rosen, C.G. 1976. Nonspecific bactericidal activity of the lactoperoxidase-thiocyanate-hydrogen peroxide system of milk against Escherichia coli and some Gram-negative pathogens. Infect. Immun. 13, 800—807. 

Arakawa H, Maeda M, Okubo S, Shimamura T. Role of hydrogen peroxide in bactericidal action of catechin. Biol Pharm Bull 2004,27 277-81. 

Laboratory scale experiments were carried out to investigate the bactericidal effectiveness of ozone-hydrogen peroxide and to ascertain the extent of its oxidation. It included the investigation of the effects of both ozone and ozone-hydrogen peroxide combination on THM formation. Filtered unchlorinated water from Banklen Water Treatment Pant in Bangkok was used as source water. 

E.L. Thomas, Myeloperoxidase, hydrogen peroxide, chloride antimicrobial system nitrogen-chlorine derivatives of bacterial components in bactericidal action again Escherichia coli, Infect. Immun. 23 522 (1979). 

Hydrogen peroxide has bactericidal properties, and is produced on a cathode surface as one of the reduction products of oxygen (another product is H2O or OH ). In an alkaline medium the following reaction occurs ... 

Hydrogen peroxide 0.5 % hydrogtai ptuoxide solution Bactericidal, fungicidal, mycobactericidal, virucidal, sporicidal... 

Bactericidal activity Lactobacilli ferment lactose to lactic acid, thereby reducing the pH to a level that harmful bacteria cannot tolerate. Hydrogen peroxide is also produced, which inhibits the growth of Gram-negative bacteria, ft has also been reported that lactic acid producing bacteria of the Streptococcus and Lactobacillus species produce antibiotics. 

Hydrogen peroxide is generated by the lactic acid bacteria in the presence of oxygen. Hydrogen peroxide is bactericidal but is mainly important as one of the components of the lactoperoxidase system (Lindgren and Dobrogosz, 1990). 

Baldry, M. G. C., 1983. The bactericidal, fungicidal and sporicidal properties of hydrogen peroxide and peracetic acid. Journal of Applied Bacteriology 54, 417-423... 

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