PMID- 22309649 OWN - NLM STAT- MEDLINE DCOM- 20130103 LR - 20181201 IS - 1347-4421 (Electronic) IS - 1347-4421 (Linking) VI - 113 IP - 6 DP - 2012 Jun TI - Selective enumeration of viable Enterobacteriaceae and Pseudomonas spp. in milk within 7 h by multicolor fluorescence in situ hybridization following microcolony formation. PG - 746-50 LID - 10.1016/j.jbiosc.2012.01.009 [doi] AB - Rapid and simultaneous enumeration of viable Enterobacteriaceae and viable Pseudomonas spp. in milk was achieved by using multicolor fluorescence in situ hybridization (FISH) with oligonucleotide probes based on 16S ribosomal RNA (rRNA) sequences in combination with a microcolony growth method (multicolor microcolony-FISH; MMC-FISH). The procedure of MMC-FISH method is rather simple; that is milk clearing, filtration of cells, incubation, hybridization and enumeration. Enumeration of targeted bacteria in logarithmic growth phase, stationary phase, or in a starved state in milk by MMC-FISH required 5-7 h, while it took 1-3 days to test for Escherichia coli and Pseudomonas putida by the conventional culture method. The numbers of E. coli and P. putida in each phase or in a starved state in milk determined by MMC-FISH were almost the same or greater than the number of colony forming units determined by the plate counting method. The MMC-FISH allows rapid examination of contamination in milk by viable Enterobacteriaceae and Pseudomonas spp. with growth potential. CI - Copyright (c) 2012 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved. FAU - Yamaguchi, Nobuyasu AU - Yamaguchi N AD - Environmental Science and Microbiology, Graduate School of Pharmaceutical Science, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan. yamaguti@phs.osaka-u.ac.jp FAU - Kitaguchi, Akiko AU - Kitaguchi A FAU - Nasu, Masao AU - Nasu M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120205 PL - Japan TA - J Biosci Bioeng JT - Journal of bioscience and bioengineering JID - 100888800 RN - 0 (Oligonucleotide Probes) RN - 0 (RNA, Ribosomal, 16S) SB - IM MH - Animals MH - Colony Count, Microbial/*methods MH - Enterobacteriaceae/*genetics/growth & development MH - Escherichia coli/genetics/growth & development MH - In Situ Hybridization, Fluorescence/*methods MH - Milk/microbiology MH - Oligonucleotide Probes MH - Pseudomonas/*genetics/growth & development MH - RNA, Ribosomal, 16S EDAT- 2012/02/09 06:00 MHDA- 2013/01/04 06:00 CRDT- 2012/02/08 06:00 PHST- 2011/11/17 00:00 [received] PHST- 2012/01/11 00:00 [revised] PHST- 2012/01/12 00:00 [accepted] PHST- 2012/02/08 06:00 [entrez] PHST- 2012/02/09 06:00 [pubmed] PHST- 2013/01/04 06:00 [medline] AID - S1389-1723(12)00030-8 [pii] AID - 10.1016/j.jbiosc.2012.01.009 [doi] PST - ppublish SO - J Biosci Bioeng. 2012 Jun;113(6):746-50. doi: 10.1016/j.jbiosc.2012.01.009. Epub 2012 Feb 5.