A new capacitance medium for presumptive detection of Listeria spp. from cheese samples

Autor:	Maria José R. M. Rodrigues, Roy M. Kirby, Christopher J. Capell
Přispěvatelé:	Veritati - Repositório Institucional da Universidade Católica Portuguesa
Jazyk:	angličtina
Rok vydání:	1995
Předmět:	Microbiology (medical) biology Listeria Presumptive media Bactometer biology.organism_classification Microbiology Capacitance Portuguese cheese Screening method Food science Presumptive positive Electrical detection Molecular Biology Bacteria
Zdroj:	Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP
Popis:	The paper presents a new medium and a method for the rapid presumptive detection of Listeria spp. in cheese samples by electrical capacitance changes. The Bactometer based capacitance broth (LED medium) required a 30% change in signal within 30 h to identify presumptive positive results. Of 32 cheese samples tested, 10 were found to contain Listeria spp. using a Fraser broth screening method and 12 using the LED medium and method. The LED method also gave 16 fewer (total = 1) false presumptive positive results. Results show the LED method to be superior to Fraser broth in regard to both the number of false presumptive positive and confirmed false negative results detected. The method appears to be suitable as a reliable rapid screen for the presence of Listeria spp. in cheese.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eb8081b3c9c8161290762e1934fe3c8 https://hdl.handle.net/10400.14/6112 Zobrazit plný text záznamu