CULTURAL CHARACTERISTICS OF MICROORGANISMS

The semi-solid medium remains in the semi-solid condition. It is prepared by adding small amount of agar (0.5%) or gelatin. Agar is a complex carbohydrates prepared from algae like gelidium and gracillaria. Agar forms a colloidal solution in hot water and sets in the form of a jelly when cool. Gelatin is an animal extract

  Microorganism, Agar, Cultural, Characteristics, Cultural characteristics of microorganisms