Assessment of the microbiological quality and mycotoxin contamination of Iranian red pepper spice

R Salari, H Najafi, MT Boroushaki… - Journal of …, 2012 - jast.modares.ac.ir
R Salari, H Najafi, MT Boroushaki, SA Mortazavi, M Fathi Najafi
Journal of Agricultural Science and Technology, 2012jast.modares.ac.ir
The objective of this study was to assess the microbial contamination of Razavi Khorasan
(Iran) hot red pepper. The natural occurrence of aflatoxins and ochratoxin A in those
samples was also investigated. For this purpose, 36 samples of this kind of pepper were
collected from a farm and sun-dried. Standard and established methods were used for both
microbiological analyses and mycotoxins identification. Total aerobic mesophilic counts of
samples varied from 102 to 4× 106 cfu g-1. Coliforms were present at high levels in all …
Abstract
The objective of this study was to assess the microbial contamination of Razavi Khorasan (Iran) hot red pepper. The natural occurrence of aflatoxins and ochratoxin A in those samples was also investigated. For this purpose, 36 samples of this kind of pepper were collected from a farm and sun-dried. Standard and established methods were used for both microbiological analyses and mycotoxins identification. Total aerobic mesophilic counts of samples varied from 102 to 4× 106 cfu g-1. Coliforms were present at high levels in all samples ranging from 1.9× 102 to 3.52× 106 cfu g-1that may indicate inappropriate hygienic quality of samples. 42% of the samples were of unsatisfactory quality due to the presence of E. coli. In all samples examined, sulphite-reducing clostridia (SRC) was below detection limit and Salmonella spp. was not detected. Fungi were found in all of the collected samples. Mold and yeast were generally high ranging from 2.4× 103 to 4.6× 106 cfu g-1and the most predominant fungal genera were Aspergillus spp., Penicillium spp and
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