Comparison of Aspergillus Differential Medium and Aspergillus flavus / parasiticus Agar for Enumerating Total Yeasts and Molds and Potentially Aflatoxigenic Aspergilli in Peanuts, Corn Meal and Cowpeas

Autor:	Larry R. Beuchat
Rok vydání:	2019
Předmět:	Aspergillus food.ingredient biology food and beverages Aspergillus flavus biology.organism_classification Microbiology food Enhanced recovery Corn meal Colony count Agar Food science skin and connective tissue diseases Incubation Food Science
Zdroj:	Journal of food protection. 47(7)
ISSN:	1944-9097
Popis:	Aspergillus differential medium (ADM) and Aspergillus flavus / parasiticus agar (AFPA) were compared for enumerating total yeasts and molds as well as the A. flavus group in raw peanuts, corn meal and cowpeas. Colony counts were made after plates were incubated at 30 and 37°C; incubation times of 42-44 and 70-72 h were evaluated. Incubation at 30°C enhanced recovery of yeasts and molds compared to incubation at 37°C. Incubation for 42-44 h at 37°C on ADM or AFPA was optimum for detecting A. flavus in corn meal. Use of AFPA for detecting A. flavus / parasiticus may have some advantage over ADM, since orange-yellow color development of reverse colonies is quicker and more intense on AFPA.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e1d651f7dd0d144d6a8da471ab0449d https://pubmed.ncbi.nlm.nih.gov/30934468 Zobrazit plný text záznamu