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dc.contributor.authorRonimus, Ron S.
dc.contributor.authorParker, Lynne E.
dc.contributor.authorTurner, Nicola
dc.contributor.authorPoudel, Sushma
dc.contributor.authorRückert, Andreas
dc.contributor.authorMorgan, Hugh W.
dc.identifier.citationRonimus, R. S., Parker, L. E., Turner, N., Poudel, S., Rückert, A., & Morgan, H. W. (2003). A RAPD-based comparison of thermophilic bacilli from milk powders. International Journal of Food Microbiology, 85(1-2), 45-61.en_NZ
dc.description.abstractThe similarity of strains of thermophilic Geobacillus stearothermophilus (formerly Bacillus stearothermophilus), Anoxybacillus flavithermus (formerly Bacillus flavothermus), Bacillus licheniformis and Bacillus subtilis isolated from separate milk powder production runs from multiple factories was examined using a random amplified polymorphic DNA (RAPD) protocol. As a result of the analysis of the RAPD fingerprints and data relating to general growth and biochemical tests, over 98% of the 1470 isolates examined (grown at 55 °C) were assigned to the species G. stearothermophilus, A. flavithermus, B. licheniformis and B. subtilis. The G. stearothermophilus isolates were identified as being nearly identical to G. stearothermophilus (DSMZ 22; equivalent to ATCC 12980), or G. stearothermophilus var. calidolactis (DSMZ 1550). Three groups of isolates were found to be related to A. flavithermus (DSMZ 2641) by partial small ribosomal subunit (16S) sequence comparisons and shown to be interrelated by RAPD analyses with multiple primer sets. The thermophilic isolates of B. licheniformis were positively identified by comparison with type strains of B. licheniformis DSMZ 13 and DSMZ 8785. All of the B. subtilis strains shared bands in their RAPD profiles and were similar to a common B. subtilis type strain (DSMZ 10 and DSMZ 347). Overall, the most common and prevalent group of strains (group A) was demonstrated to be closely related to G. stearothermophilus (DSMZ 22).en_NZ
dc.relation.ispartofInternational Journal of Food Microbiology
dc.subjectGeobacillus stearothermophilusen_NZ
dc.subjectBacillus licheniformisen_NZ
dc.subjectBacillus subtilisen_NZ
dc.subjectBacillus flavothermusen_NZ
dc.subjectAnoxybacillus flavithermusen_NZ
dc.titleA RAPD-based comparison of thermophilic bacilli from milk powdersen_NZ
dc.typeJournal Articleen_NZ
dc.relation.isPartOfInternational Journal of Food Microbiologyen_NZ

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