Quantification of Dibromodimethylhydantoin Disinfectants in Water by Chemiluminescent Method

Song, Shujuan; Liu, Peng; Song, Qi

doi:10.2116/analsci.23.327

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…E. coli O157:H7 was not enumerable from any of the 396 samples obtained during this study, so we could not determine whether HOBr treatment was effective in reducing the concentration of E. coli O157:H7 on hides. However, our laboratory recently demonstrated that spray treatment of inoculated beef carcass surfaces and beef hearts with the antimicrobial 1,3-dibromo-5,5-dimethylhydantion, which hydrolyzes to its active HOBr form in aqueous solution (23), was effective in reducing the levels of E. coli O157:H7 by 1.6 to 2.1 log CFU/100 cm 2 (16). Since we were able to demonstrate that HOBr reduced E. coli concentrations (ECC/100 cm 2 ) by 2.2 to 3.8 log (Table 1), it is reasonable to assume that enumerable E. coli O157:H7 concentrations, when present on hides, would be reduced by a similar level (4,18).…”

Section: Resultsmentioning

confidence: 99%

Efficacy of Hypobromous Acid as a Hide-On Carcass Antimicrobial Intervention

Schmidt

Wang

Kalchayanand

et al. 2012

Journal of Food Protection

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Escherichia coli O157:H7 and Salmonella on cattle hides at slaughter are the main source of beef carcass contamination by these foodborne pathogens during processing. Hypobromous acid (HOBr) has been approved for various applications in meat processing, but the efficacy of HOBr as a hide antimicrobial has not been determined. In this study, the antimicrobial properties of HOBr were determined by spraying cattle hides at either of two concentrations, 220 or 500 ppm. Treatment of hides with 220 ppm of HOBr reduced the prevalence of E. coli O157:H7 on hides from 25.3 to 10.1% (P < 0.05) and reduced the prevalence of Salmonella from 28.3 to 7.1% (P < 0.05). Treatment of hides with 500 ppm of HOBr reduced (P < 0.05) the prevalence of E. coli O157:H7 on hides from 21.2 to 10.1% and the prevalence of Salmonella from 33.3 to 8.1%. The application of 220 ppm of HOBr reduced (P < 0.05) aerobic plate counts, total coliform counts, and E. coli counts on hides by 2.2 log CFU/ 100 cm(2). The use of 500 ppm of HOBr resulted in reductions (P < 0.05) of aerobic plate counts, total coliform counts, and E. coli counts by 3.3, 3.7, and 3.8 log CFU/100 cm(2), respectively, demonstrating that the use of higher concentrations of HOBr on hides resulted in additional antimicrobial activity. These results indicate that the adoption of a HOBr hide wash will reduce hide concentrations of spoilage bacteria and pathogen prevalence, resulting in a lower risk of carcass contamination.

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Section: Resultsmentioning

confidence: 99%

Efficacy of Hypobromous Acid as a Hide-On Carcass Antimicrobial Intervention

Schmidt

Wang

Kalchayanand

et al. 2012

Journal of Food Protection

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“…It has also been reported that hydantoin derived from imidazole, such as 1,3-dibromo-5,5-dimethylhydantoin, which is a widely used disinfectant in water treatment, can oxidize luminol to give CL emission [130].…”

Section: Food and Environmental Applicationsmentioning

confidence: 99%

Advances and analytical applications in chemiluminescence coupled to capillary electrophoresis

2010

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Advances and analytical applications in chemiluminescence coupled to capillary electrophoresisThe present review presents the state of the art of the developments, key strategies and analytical applications of chemiluminescence detection coupled to CE (CE-CL). Different parts considering the most common CL systems have been included, such as the tris(2,2 0 -bipyridine)ruthenium(II) system, the luminol and derivatives reaction, the peroxyoxalate CL or direct oxidations. New advances in homemade configurations and applications in different fields such as clinical, pharmaceutical, environmental and food analysis have been included. The focus is on studies which appeared from 2000 to the end of 2009.

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“…However, there has been reported only a few examples of selective benzylic alcohol oxidations reactions in pure aqueous reaction conditions up to now [ 18 , 19 ]. 1,3-Dibromo-5,5-dimethyl hydatoin (DBDMH) has been -widely used as a green sterilizing disinfectant for various water purifications due to its very cheap and very low toxic properties [ 20 ]. DBDMH with a combination of chlorinated solvents has successfully been utilized in various bromination processes including benzylic bromination [ 21 ], dibromination of functionalized alkenes [ 22 ], oxidation of thiols [ 23 ], and bromination reactions of carboxylic acids [ 24 ].…”

Section: Introductionmentioning

confidence: 99%