hyaluronidase has a panoramic use in biotechnology processes and therapy due to its therapeutic, pathophysiological, physiological and biological importance. since much of the preparations of hyaluronidases are from animal source (bovine and ovine testicular sources) with limited sources of microbial origin, that prompted the authors to screen and isolate a new promising bacterial strain with h...

      Hyaluronidase has a panoramic use in biotechnology processes and therapy due to its therapeutic, pathophysiological, physiological and biological importance. Since much of the preparations of hyaluronidases are from animal source (bovine and ovine testicular sources) with limited sources of microbial origin, that prompted the authors to screen and isolate a new promising bacterial strain ...

The influence of Streptococcus mitis BMS biosurfactants on the adhesion of eight pioneer and four cariogenic oral bacterial strains was, for a first screening, examined in a microtiter plate assay. The adhesion to pellicle-coated wells of three cariogenic strains was inhibited >70% by the biosurfactants, while only one pioneer strain showed >70% reduction. The reduction for the other strains di...

The effects of histatins on coaggregation between Porphyromonas gingivalis 381 and Streptococcus mitis ATCC 9811 were investigated by using a turbidimetric assay. The coaggregation activity was significantly inhibited by histatins 5 and 8 and strongly by lysozyme. Tritium-labeled histatin 8 bound to P. gingivalis cells but not to S. mitis cells.

Chicken Egg Yolk antibodies (IgY) were raised in 24 week old white leg horn chickens against Streptococcus mitis (MTCC 2696). The chickens received Booster injections of increasing concentrations of antigen to raise the antibody level in egg yolk. The antibodies were purified from immunized chicken egg yolk by Poly ethylene Glycol (PEG) and Ammonium sulphate precipitation method and further pur...

Objective: To evaluate twenty Traditional Chinese Medicines (TCM) against four oral bacteria. Methods: Twenty TCM were tested for sensitivity against Streptococcus mitis, Streptococcus sanguis, Streptococcus mutans and Porphyromonas gingivalis. Aliquots of suspension of each bacterial species were inoculated on a horse blood agar (HBA) plate, 6 mm diameter paper disks was soaked in different dr...

Background: “Streptococcus mutans” bacterial biofilm is known to be a major causative organism for dental plaque which acknowledged associated with biofilm. In this study we aim evaluate the effectiveness of natural compound “Piperine” on bacteria from One hundred cases Dental unit Of Rajshahi Medical College. Methods: This longitudinal was conducted in Molecular Pathology Insect Biotechnology ...

PURPOSE Streptococcus oralis and Streptococcus mitis belong to the Mitis group, which are mostly commensals in the human oral cavity. Even though S. oralis and S. mitis are oral commensals, they can be opportunistic pathogens causing infective endocarditis. A recent taxonomic re-evaluation of the Mitis group has embedded the species Streptococcus tigurinus and Streptococcus dentisani into the s...

Objectives: To study and compare the number of colony forming units of Streptococcus mutans, Streptococcus sanguis, Streptococcus salivarius, Streptococcus mitis and Streptococcus milleri in dentulous, edentulous and in those wearing partial and complete dentures by using semi-quantitative culture method of saliva samples with calibrated standard loop. Materials: Sterile specimen collection bot...

Chitosan is a naturally occurring polysaccharide with antimicrobial properties. This study investigated whether chitosan could induce the LytSR two-component autolytic regulatory system, specifically the cid and lrg operons, found in Streptococcus mutans. A turbidity assay and a murein hydrolase assay were used to observe autolytic activity in chitosan-treated and non-treated cultures of wildty...