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Monthly Archives: May 2010

28 May

Species of bacteria, belonging mainly to the genera Bacillus and Clostridium, produce extremely resistant structures called endospores. In addition to being heat resistant they are also very resistant to chemicals that destroy non-spore forming bacteria. Bacillus anthracis, better known as … Continue reading

21 May

When a single stain is used to color a bacterial organism it is referred to as simple staining. The most common dyes for this method are methylene blue, basic fuchsin, and crystal violet. All of these dyes work well on … Continue reading

20 May

Having trouble resolving your peaks on C18 and C8 columns? Why not try the revolutionary stationary phases by Sielc Technologies? The strength of Sielc columns is their ability to separate classes of compounds with similar molecular structures. Sielc Technologies is … Continue reading

14 May

When attempting to identify an unknown bacterium it is often necessary to determine whether or not the microorganism is motile. There are several ways in which you can do this. The easiest way to determine motility is to prepare a … Continue reading

07 May

Thanks to the Danish bacteriologist Christian Gram, microbiologists worldwide perform a technique called gram staining. This method of staining determines whether a bacterium is gram-negative or gram-positive. Knowing the difference between gram positive and gram negative bacteria is crucial for … Continue reading