000 00595nab|a22002177a|4500
999 _c61775
_d61767
001 61775
003 MX-TxCIM
005 20200925164639.0
008 200423s2012||||xxk|||p|op||||00||0|eng|d
022 _a0022-0299
022 _a1469-7629 (Online)
024 8 _ahttps://doi.org/10.1017/S002202991200026X
040 _aMX-TxCIM
041 _aeng
100 1 _912683
_aCremonesi, P.
245 1 0 _aIdentification of Clostridium beijerinckii, Cl. butyricum, Cl. sporogenes, Cl. tyrobutyricum isolated from silage, raw milk and hard cheese by a multiplex PCR assay
260 _aCambridge (United Kingdom) :
_bCambridge University Press,
_c2012.
500 _aPeer review
520 _aLate blowing, caused by the outgrowth of clostridial spores present in raw milk and originating from silage, can create considerable product loss, especially in the production of hard and semi-hard cheeses. The conventional method for the isolation of Clostridium spp. from cheeses with late-blowing symptoms is very complicated and the identification of isolates is problematic. The aim of this work was the development of a multiplex PCR method for the detection of the main dairy-related clostridia such as: Cl. beijerinckii, Cl. butyricum, Cl. sporogenes, Cl. tyrobutyricum. Samples derived from silage, raw milk and hard cheese were analysed by the most probable number (MPN) enumeration. Forty-four bacterial strains isolated from gas positive tubes were used to check the reliability of the multiplex PCR assay. The specificity of the primers was tested by individually analysing each primer pair and the primer pair combined in the multiplex PCR. It was interesting to note that the samples not identified by the multiplex PCR assay were amplified by V2–V3 16S rRNA primer pair and the sequencing revealed the aligned 16S rRNA sequences to be Paenibacillus and Bacillus spp. This new molecular assay provides a simple promising alternative to traditional microbiological methods for a rapid, sensitive detection of clostridia in dairy products.
546 _aText in English
650 7 _2AGROVOC
_912684
_aClostridium
650 7 _2AGROVOC
_912685
_aRaw milk
650 7 _2AGROVOC
_910374
_aSilage
650 7 _2AGROVOC
_98681
_aCheese
700 1 _912686
_aVanoni, L.
700 1 _912687
_aSilvetti, T.
700 1 _912688
_aMorandi, S.
700 1 _912689
_aBrasca, M.
773 0 _tJournal of Dairy Research
_gv. 79, no. 3, p. 318-323
_dCambridge (United Kingdom) : Cambridge University Press, 2012.
_x0022-0299
_wu76377
942 _cJA
_n0
_2ddc