The acidity of the media will cause the pH indicator, phenol red, to turn yellow. Staphylococcus aureus is capable of fermenting mannitol (left side of left plate) while Staphylococcus epidermidis is ...

glycolic acid peels and other chemical peels. Which brings us to what is widely considered the most aggressive type of peel out there—the phenol peel. It's so intense that many dermatologists ...

Cells are homogenized in guanidinium thiocyanate and the RNA is purified from the lysate by extraction with phenol-chloroform at reduced pH 1. This method allows many samples to be processed ...