Abstract:

Soft rot in Amorphophallus konjac was caused by Erwinia carotovora subsp. carotovora (E.c.c.) and Erwinia chrysanthemi (E.ch.). This study through the conventional plate count method knew that the effects for seven kinds of carbon sources (glucose, starch, glycerin, mannitol, sugar, glucomannan and maltose) on the growth of the two subspecies of soft rot bacteria in Amorphophallus konjac. The results showed that the two subspecies can be a very good use of sucrose, and there was no significant difference between growth in water and the growth medium in konjak glucomannan or starch, but the growth medium in glucose has not good water.