Tuesday, May 3, 2011


.*: Mixed 400mg of Pediococcus product with 4ml of MRS broth, mixed thoroughly for rehydration, added 0.05mg/ml, 0.1mg/ml, 0.2mg/ml of Metronidazole, followed by incubating at 37 ⁰C for 4 hours, and plated 100 ul at 10,000 dilution (or 100,000 dilutions for control) onto MRS plate. The colony formation unit (cfu) was obtained after incubating the plates overnight at 37 ⁰C.



Antibiotics have become an integral part of treating any disorder/disease in today’s treatment methodology. The increase in number of prescribed antibiotics has not only caused reason for worry in terms of super-bugs, but more importantly has brought to light the disruption of the micro biota of the gastro-intestinal tract. The effect of antibiotics on natural gut microorganisms is a force to reckon with; especially because of the side-effects it causes which in turn weaken the patient. Some of the common effects are nausea, fever, loss of appetite and diarrhea.


While it is inadvisable to completely reduce the use of antibiotics, the cause of concern is also great. It has been proven that Pediococcus acidilactici, used as a probiotic along with Saccharomyces boulardii can help in alleviating the effects of the antibiotics in due course of treatment. This may appear counterintuitive due to the fact that antibiotics tend to limit the growth of microorganisms. Metrondiazole is used primarily to treat diseases or infections caused by anaerobic bacteria and protozoa thereby not disrupting completely the survival of the Pediococcus based probiotics. Also, the initial inoculum of Pediococcus acidilactici is very high (1 billion CFU) enabling it to survive at different concentrations of Metronidazole even up to 0.2 mg/ml, as shown in the picture above. This characteristic allows for Pediococcus acidilactici based probiotics to be used in conjunction with most of the antibiotics of the nitroimidazole family.


Up-coming article: Survival of Pediococcus acidilactici in presence of different classes of antibiotics!

Thursday, March 3, 2011

Survivability of nutrilotsTM In An Acidic environment

NutriLotsTM probiotics are innovative nutritional supplements containing Pediococcus acidilactici. Compared to the microorganisms that are commonly used in probiotics such as Lactobacillus and Bifidobacterium, Pediococcus is much more suited to survive in the acidic environment of the human stomach and is able to reach the gastrointestinal tract with maximal efficiency.
     
As you can see from the picture above, Lactobacillus is not as viable as Pediococcus since it can only survive at a pH of 6.2.Pediococcus on the other hand is viable at all of the pHs shown (6.2, 2.0, and 1.5). Normally the pH of the stomach is around 1.5 - 2.0, making it crucial that the probiotics are able to survive in low pH levels.

            Once the probiotic capsule makes its way through the stomach, its next stop is the small intestine where it helps maintain the proper balance of microorganisms found there. Often when the balance is disrupted, problems with digestion and excretion may result. 

            A beneficial probiotic must be able to survive in the acidic environment of the stomach in order to reach the lower part of the gastrointestinal tract. Without this ability, efficiency is decreased. NutriLotsTM is capable of surviving at a low pH, which makes it an effective probiotic!