| 摘要 |
FOOD CONTAINING Y-GLUTAMYLCYSTEINE OR CYSTEINE IS PRODUCED BY CULTURING CANDIDA UTILIS CONTAINING 1% BY WEIGHT OR MORE OF Y-GLUTAMYLCYSTEINE IN DRY CELLS OBTAINED IN LOGARITHMIC GROWTH PHASE WHEN CULTURED IN A MINIMAL MEDIUM, FOR EXAMPLE, CANDIDA UTILIS IN WHICH A GENE ENCODING GLUTATHIONE SYNTHETASE IS MODIFIED SO THAT INTRACELLULAR GLUTATHIONE SYNTHETASE ACTIVITY IS REDUCED, UNDER A SUITABLE CONDITION AND MIXING THE OBTAINED CULTURE OR A FRACTION THEREOF OR THE CULTURE OR A FRACTION THEREOF SUBJECTED TO A HEAT TREATMENT WITH A RAW MATERIAL OF FOOD OR DRINK TO PRODUCE FOOD OR DRINK. |
