Journal of Advanced Biomedical Sciences

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Background & Objective: Transfer of food born diseases is a common problem in hygiene and public health. The bacteria are the most important factors of food contamination and intoxications. The aim of this study is to determine the bacterial contamination of food supply in the west of Tehran supermarkets.

Materials & Methods: In this descriptive cross-sectional study, 642 samples of foods were taken randomly from west of Tehran supermarkets. The levels of bacterial contamination of the foods were assessed in the department of food and drug microbiology of lab, affiliated to Iran University of medical science.

Results: Salads were the most (50%) and protein products (6.36%) the least rate in terms of mesophilic bacteria contamination. Also, sweets (13.46%) and protein products (1.73%) in terms of Coliforms. Salads (58.33%) and dairy products (9.84%) with respect to Escherichia coli, sweets (4.81%) and salads (0%) in terms of Staphylococcus aureus, sweets (4.81%) and dairy products (0.39%) with respect to Bacillus cereus, were the most and least contaminated foods, respectively.

Conclusion: In overall, salads had the most contamination percentage with respect to mesophilic bacteria, Escherichia coli and Enterococcus (P . According to our study, we conclude that training of dealers and food suppliers are necessary and healthy principals should be followed. Also supervision on food packing and storage should be considered to prevent food microbial contamination.

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Background & Objectives: Infectious diseases caused by bacteria and fungi have affected billions of people worldwide. Throughout human history, infectious diseases have been the leading cause of death and disability. Infectious diseases today account for one-third of all deaths in the world. The general objective of this study was to investigate the antimicrobial activity of Scabiosa Olivieri on gram-positive, gram-negative bacteria and fungi, as well as to study its anti-inflammatory properties by investigating the factors of human IL-1 and TNF-α, which ultimately led to the introduction of an antimicrobial agent and new anti-inflammatory drugs with a natural and inexpensive source.
Materials & Methods: First, the extract of the plant was prepared by maceration. Then, the antimicrobial properties of this extract on E. coli, Staphylococcus aureus, and Candida albicans were investigated by MIC. Also, the effect of this extract on the expression of IL-1 and TNFα in human peripheral blood mononuclear cells was evaluated by ELISA.

Results: Scabiosa Olivieri's extract significantly showed anti-inflammatory properties and has antimicrobial activity against Escherichia coli and a mild antimicrobial activity against Staphylococcus aureus. But the antifungal property was not observed.

Conclusion: It seems that Scabiosa Olivieri's extract can be used as an anti-inflammatory and antimicrobial agent. However, the effects of its use in the in vivo environment and the chemical analysis of its constituent compounds require further research.