AIMS: To evaluate disinfectants against Salmonella under conditions relevant for the feed industry. MATERIALS AND RESULTS: A survey on the use of disinfectants in feed industry showed that a range of different types was used. Nine disinfectants, reflecting the most commonly used active ingredients, were tested for bactericidal activity on Salmonella isolated from the feed industry. All disinfectants were efficient against Salmonella in suspension. The bactericidal effect varied considerably between different types of active compounds on bacteria dried on surfaces or grown as biofilm. Tenside-based disinfectants and hypochlorite were found to have low bactericidal activity and the efficiency was significantly reduced when the ratio of amount disinfectant per cell decreased. It was shown that concentrations of 70-80% ethanol were effective against Salmonella. Among the disinfectants tested a product containing 70% ethanol was most efficient followed by Virkon S. CONCLUSIONS: Many disinfectants had low bactericidal activity against Salmonella at surfaces while Virkon S and a product containing 70% ethanol were most effective. Another advantage of ethanol-based disinfectants is evaporation of ethanol, resulting in low residual water after use. SIGNIFICANCE AND IMPACT OF THE STUDY: Use of the disinfectants found to be efficient against surface associated Salmonella, may assist the industry in combating Salmonella.
AIMS: To evaluate disinfectants against Salmonella under conditions relevant for the feed industry. MATERIALS AND RESULTS: A survey on the use of disinfectants in feed industry showed that a range of different types was used. Nine disinfectants, reflecting the most commonly used active ingredients, were tested for bactericidal activity on Salmonella isolated from the feed industry. All disinfectants were efficient against Salmonella in suspension. The bactericidal effect varied considerably between different types of active compounds on bacteria dried on surfaces or grown as biofilm. Tenside-based disinfectants and hypochlorite were found to have low bactericidal activity and the efficiency was significantly reduced when the ratio of amount disinfectant per cell decreased. It was shown that concentrations of 70-80% ethanol were effective against Salmonella. Among the disinfectants tested a product containing 70% ethanol was most efficient followed by Virkon S. CONCLUSIONS: Many disinfectants had low bactericidal activity against Salmonella at surfaces while Virkon S and a product containing 70% ethanol were most effective. Another advantage of ethanol-based disinfectants is evaporation of ethanol, resulting in low residual water after use. SIGNIFICANCE AND IMPACT OF THE STUDY: Use of the disinfectants found to be efficient against surface associated Salmonella, may assist the industry in combating Salmonella.
Authors: Tone Mari Rode; Lars Axelsson; Per Einar Granum; Even Heir; Askild Holck; Trine M L'abée-Lund Journal: Appl Environ Microbiol Date: 2011-06-17 Impact factor: 4.792
Authors: Olivier Habimana; Trond Møretrø; Solveig Langsrud; Lene K Vestby; Live L Nesse; Even Heir Journal: BMC Vet Res Date: 2010-11-02 Impact factor: 2.741
Authors: M Corcoran; D Morris; N De Lappe; J O'Connor; P Lalor; P Dockery; M Cormican Journal: Appl Environ Microbiol Date: 2013-12-20 Impact factor: 4.792
Authors: Live L Nesse; Camilla Sekse; Kristin Berg; Karianne C S Johannesen; Heidi Solheim; Lene K Vestby; Anne Margrete Urdahl Journal: Appl Environ Microbiol Date: 2013-12-20 Impact factor: 4.792