background: the presence of chemical compounds has different effects on the rate of degradation of materials and on changing dominant microorganisms in the biological degradation processes. these effects are related to the type and concentration of compounds. this study was to evaluate the effect of different concentrations of glucose as a growth substrate on phenol removal efficiency and micro...

Total anaerobic bacteria and Methanobrevibacter smithii populations were enumerated in fecal specimens from two individuals over 10- and 13-month periods. The ratio of M. smithii to total anaerobic count varied between the individuals, but it was a relatively constant proportion of the large-bowel microbial flora within each individual. Neither a barium enema examination of one subject nor a ra...

Where is acetaldehyde derived from? Acetaldehyde in human body is derived from three principal sources: 1) by in vivo synthesis in the liver, where it is rapidly metabolized into acetic acid and water; 2) acetaldehyde also exists in the saliva, derived from cigarette smoke or produced by the microbial flora of the oral cavity and pharynx (also in non-smokers); 3) the third important source of a...

Indoor microbial air flora is a cause of tremendous health concern in developing countries. A number of allergic and infective illnesses are linked to poor microbiological quality of indoor air in the hospital, like Bronchopulmonary aspergillosis, sick building syndrome and pneumonia. This air quality needs to be assessed by one or more of many standard methods available, old and new, and is ve...

Background Maternal lower genital tract during pregnancy is a complex niche of microbes that normally inhabit or cause infections in few instances. Association of various microbial flora and adverse pregnancy outcomes is being increasingly explored. The study was aimed to determine the prevalence of lower genital tract infections (LGTI) among pregnant women and to determine the common etiologie...

Modern consumers are interested in the use of non-chemical methods to control pathogens when heat sterilization is not an option. Such is the case with teewurst sausage, a raw spreadable sausage and a popular German commodity. Although Listeria was not found in teewurst, the optimal microbial growing conditions of teewurst coupled with the ubiquity of L. monocytogenes in nature, makes the possi...

Effective prophylactic antibiotic agents are active against most but not all potential pathogens, which usually are endogenous flora. The goal of antibiotic prophylaxis is to prevent infection, not to cure or treat disease. In contrast to the therapeutic use of antibiotics, prophylaxis must be administered before the potential exposure, and usually for a short duration (less than 24 hours). The...

In the course of a study of the microbial flora of fresh pork sausage (Sulzbacher and McLean, 1951) a gram positive rod associated with sausage flavor deterioration was isolated repeatedly. Although this organism tentatively was identified as belonging to the genus Microbacterium, it differs sufficiently from the described species of that genus to justify the publication of a complete descripti...

Effects of explosively-generated hydrodynamic shock wave treatments on the microbial flora of beef steaks and ground beef, and Listeria innocua T.A. Lorca , J.R. Claus , J.D. Eifert , J.E. Marcy a , and S.S. Sumner a a Department of Food Science and Technology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA 24060. b Meat Science & Muscle Biology Laboratory, ...