Clinical Microbiology: Open Access

Aflatoxin M1 binding by dairy strains of lactic acid bacteria

3^rd Global Microbiologists Annual Meeting

August 15-17, 2016 Portland, Oregon, USA

Rania Abdelmonem Mostafa Khattab

Cairo University, Egypt

Posters & Accepted Abstracts: Clin Microbiol

Abstract:

Aflatoxin belongs to a group of fungal toxins known as mycotoxins, and is widespread in agricultural products and food. Aflatoxin is associated with both acute and chronic toxicity in animals and humans including acute liver damage, liver cirrhosis and liver cancer. Aflatoxins are predominantly produced by Aspergillus flavus and Aspergillus parasiticus but may also be produced by other strains, such as Aspergillus nomius, Aspergillus tamari and Aspergillus pseudotamarii. Aflatoxin M1 (AFM1) is a highly toxic compound found in milk. Aflatoxin M1 is considered as a â??milk toxinâ??. Presence of aflatoxin M1 in milk is a public health hazard. Growing children are more sensitive than adults as milk is one of their main sources of nutrients. The aim of this study is to determine the ability of specific lactic acid bacteria strains to remove aflatoxin M1 from liquid media. Six dairy strains of lactic acid bacteria were tested for their ability to remove aflatoxin M1 from liquid medium. Both viable and dead bacteria from the same population were tested. Two lactic acid bacterial strains which exhibited the best AFM1 removal abilities were also tested using contaminated skimmed and full cream milk. Both skimmed milk and full cream milk were used with both viable and heat-killed bacteria assessed. All strains, both viable and heat-killed, could reduce the AFM1 content of a liquid medium. From the results we can conclude that specific dairy strains of lactic acid bacteria can offer means of decontaminating aflatoxin M1 from milk.

Biography :

Rania Abdelmonem Mostafa Khattab has completed her PhD in 2012 from Faculty of Pharmacy, Microbiology and Immunology Department, Cairo University, Egypt. She is a Lecturer at Microbiology and Immunology Department, Faculty of Pharmacy, Cairo University, Egypt. She has received Cairo University International Publication Award, Egypt in 2013 and in 2016. She has teaching experience for both undergraduate and postgraduate courses in basic microbiology and immunology, pharmaceutical microbiology, quality control of herbal drugs, public health and biotechnology. She has published many papers in international journals.

Email: rania.khatab@pharma.cu.edu.eg khattab500@yahoo.com