Rhodotorula graminis JAG-12 having bioconversion capacity of catechin and method for bioconversion using it

The present invention relates to a method for producing a green tea extract fermentation product using Rhodotorula graminis JAG-12 (Accession No .: KFCC11539P) having bioconverting ability for converting epigallocatechin gallate into epigallocatechin, And a method for reducing epigallocatechin gallate using the same. It is also possible to produce a fermented green tea with reduced bitter taste and improved palatability through the strain of the present invention, and it is possible to produce epigallocatechin gallate from epigallocatechin gallate Epigallocatechin can be produced.