Effect of Biosurfactant produced from Streptococcus thermophilus against Staphylococcus aureus and some physiological parameters in White Rats Male

The bacteria Streptococcus thermophilus belongs to the group of lactic acid bacteria, where the research aims to identify the role of Biosurfactant produced from the bacteria Streptococcus thermophiles for its importance in limiting the growth of Staphylococcus aureus and its effect on some of the physiological parameters of the white rats male ، Streptococcus thermophilus were isolated from local white cheese, and then 120 clinical samples (Wounds, Burns, Blood) were collected. Biosurfactant was extracted from Streptococcus thermophilus and its inhibitory activity was evaluated against Staphylococcus aureus. As well as, its resistance to some antibiotic effects was studied and the effect of Biosurfactant on some physiological parameters in white rats male. ،22 infected samples were obtained, distributed between (11,8, and 3) for each of the (Wound, Burn, and Blood) samples, respectively. The results also showed resistance of bacteria S. aureus to some of the antibiotics used in the study, the results of the statistical analysis to evaluate the inhibitory activity of the Biosurfactant towards S. aureus showed a significant increase at a significant level (P