Production of medicated bedding straw: challenges and perspectives

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Title: Production of medicated bedding straw: challenges and perspectives
Authors: Solan, Patrick J.
Valdramidis, Vasilis P.
Androny, Camille
O'Donnell, C. P. (Colm P.)
Scannell, Amalia G. M.
Curran, Thomas P.
et al.
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Date: Aug-2011
Abstract: Previous bacteriological findings have reported that animal disease outbreaks are associated with the quality of the animal environment. Animal bedding straw is a good source of bacteria and fungi, typically contaminated with (mycelia) yeasts and filamentous fungi species such as Aspergillus, Fusarium, Alternaria, Cladosporium, Epicoccum, Penicillium, Verticillium and Enterobacteria. The objective of this work was to assess the efficacy of different technologies on the production of medicated bedding straw. Four critical control points of an industrial straw disinfection processing line were identified. The levels of fungi and bacteria present in the straw during an industrially applied mechanical – chemical process were quantified. The plate counting revealed that propionic acid and formaldehyde chemicals reduced the microbial levels from the raw material and that they were more efficient on moulds than on bacteria. The potential use of ozone gas as an alternative greener technology to the current liquid chemical treatments was also evaluated. Trials conducted on ozone treatments (flow rates: 0.031, 0.125, 0.5 L/min, concentrations: 36, 99, 150 μg/mL, treatment time: 0, 5, 15, 30 mins, and residual times of 0 to 18 hrs) indicated that ozone successfully reduces the microbial counts and the fungi levels by more than 1.5 logs (cfu/g).
Funding Details: Enterprise Ireland
Type of material: Conference Publication
Publisher: American Society of Agricultural and Biological Engineers (ASABE)
Keywords: OzoneAntimicrobialMedicated strawBeddingMouldsMoldsPropionic acidFormaldehydeDisinfection
DOI: 10.13031/2013.37761
Language: en
Status of Item: Peer reviewed
Conference Details: American Society of Agricultural and Biological Engineers (ASABE) Annual International Meeting, Louisville, Kentucky, USA, 7-10 August, 2011
Appears in Collections:Biosystems and Food Engineering Research Collection

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