الفهرس 
Concept and types of food contamination
ntimicrobial activity of probiotics microorganisms against microbial pathogensOnly 14 pages are availabe for public view
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Abstract
Food is defined as any substance that is edible and portable too, originating either from plant or animal source. Food is ingested by each and every living being on the planet earth and that is why it poses a great threat for disease transmission. Food sustains life and helps in providing energy, growth and maintenance of health of body (David et al., 2012). Food acts as a vehicle for transmission of diseases specially when gets contaminated with harmful microbes, microbial toxins and other environmental contaminants (Alum et al., 2016). Spoilage of food has always been a challenge to mankind and this is because food nutrients act as a great source to microbes for their growth (Ajay and Mandal, 2020). Food contamination is defined as the spoilage of food due to bacterial growth or toxic substances present in it. In simple words, any substance in food that reduces the safety or quality of food is called food contamination. The contamination process by pathogenic bacteria in humans may be caused by poor hygiene conditions during food processing involving sick people and animals or involving feces from infected agents. Bacteria contaminated food may also be hazardous to public health due to the excessive growth in bacteria populations at food surface or within the food (Alum et al ., 2016). These bacteria may come from the environment and produce toxins that develop into serious health problems on intake. Pathogenic microorganisms find an excellent environment in food for their development and even for the release of toxic substances such as Staphylococcus aureus, Salmonella spp., etc due to their importance in eventual sequelae .