What is colorimetry according to microbiology?

Colorimetry is basically a technique used to determined the intensity of color in the solution. Where colorimeter is a device used to measure the transmittance and absorbance of light through the solution. There are many applications of colorimeter in field of microbiology such as:-Used to observe the growth of bacteria. read more

According to Beer's Law, the concentration of the absorbing material is proportional to a quantity known as "absorbance," defined mathematically below. Thus, if you can determine the absorbance of a solution of a substance of unknown concentration and compare it with the absorbance of solutions of known concentrations, you can find the concentration of the substance in the solution being tested. read more

The color of each culture was first characterized by reflectance colorimetry for dominant wavelength, purity, and luminous reflectance (Y) and was then classified visually into 1 of 10 color grades. read more