Culture Media - BACTERIA

WHAT IS CULTURE MEDIA...?

        Any Microorganism that need to grown in a place with all suitable nutrients and environment is known as culture. like that bacteria  need to grow with suitable Culture Media.

    Bacteria have to be grown or cultured for them to be identified as only rarely can they be recognized by 

morphology alone. The study of bacteria involves the study of bacteria population rather than of single bacterial cells. In humans and animals bodies as well in another natural sources bacteria occur as mixed population. By appropriate procedures they have to be separated or isolated on culture media and grown as pure cultures for study.

        The original media used by Lousie Pasture were liquids such as urine or meat broth. 

Liquid Media:

Liquid media have many disadvantage bacteria growing in liquid media may not exhibit specific characteristics for their identification. it is also difficult to isolate different types of bacteria from mixed population using liquid media.

However liquid media have their uses, for Example: For obtaining bacterial growth from blood or water when large volumes have to be tested and for preparing bulk cultures for preparation of antigens or vaccines.

While bacteria grow diffusely in liquid medium they produce discrete visible growth on solid media. It inoculated in suitable dilutions, bacteria from colonies which are clone of cells originating from a single bacterial cell.