Role of Malachite green in LJ medium ?
Ans. is 'b' i.e., Inhibits growth of other bacteria Lowenstein-Jensen Medium (LJ medium) LJ medium consists of mineral salts, asparagine, glycerol, malachite green and hen's egg. The malachite green prevents the growth of other microorganism on medium. It is used as a primary isolation medium for mycobacteria.
Increase growth of M. tuberculosis
Inhibits growth of other bacteria
Nutritive value
As an indicator