A method and medium for the electrical detection of Listeria spp. from food
| Autor: | Roy M. Kirby, Maurice O. Moss, Christopher J. Capell |
|---|---|
| Přispěvatelé: | Veritati - Repositório Institucional da Universidade Católica Portuguesa |
| Jazyk: | angličtina |
| Rok vydání: | 1995 |
| Předmět: |
food.ingredient
Time Factors Listeria Liquid medium Biology Food company medicine.disease_cause Microbiology food Listeria monocytogenes medicine Agar Food science Electrical Bacteriological Techniques Ammonium citrate Electric Conductivity General Medicine biology.organism_classification Culture Media Detection Enrichment Food Microbiology Ferric Bacteria Food Science medicine.drug |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| Popis: | The development of a liquid medium for the detection of Listeria spp. by capacitance monitoring of food samples previously enriched in UVM 1 broth is described. Rapid growth of Listeria monocytogenes was shown to occur in liquid media with selectivity based on antibiotics found in Oxford agar. The final capacitance medium contained higher concentrations of the Oxford selective agents than Oxford agar and did not require the esculin/ferric ammonium citrate reaction to be observed. The medium relied upon the ability of Listeria spp. to induce a greater than 30% change in capacitance within 30 h. When run in parallel with the Listeria spp. test samples of a large food company, the method gave far fewer false-positive results than Fraser broth. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|