February 25, 2022

Tryptic Soy Agar and Sabouraud Agar

Tryptic soy agar (TSA) is general-purpose growth medium that is made through enzymatic digestion of casein and soybean. It supports growth of a wide range of microorganisms including the nonfastidious and semifastidious bacteria. However, fastidious bacteria that have particular nutrient requirements would not grow in TSA. An example of such a microbe is Neisseria gonorrhea, …

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DIY Sunscreens: Are They Safe in Protecting Against Ultraviolet (UV) Radiation?

DIY sunscreens are becoming popular but some of the ingredients have not to be investigated and considered to protect against harmful sun radiations. Besides, they could be less effective than the available commercial sunscreens and the available studies have not much for FDA to approve them. Therefore, it would be imperative to test them to …

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