STUDIES ON THE NEW SPECIAL COLOURING METHOD FOR SMEAR OF LACTIC ACID BACTERIA IN YOGURT
酸奶中乳酸菌镜检涂片的特殊染色法

This article established a new special colouring method for smear of lactic acid bacteria in yogurtToluidine Blue Colouring Method. This method can dye the cell of microbian as blue with toluidine blue solutio(0.2%) for 2 min. Meanwhile, the light cologned medium of yogurt of yogurt or other material can be decolouredwith acehc acid (0.l%) for 2 Sec. Under the microscope, the smear of yogurt shows the blue cell of hocrobianin white or transparent background, even if the smear is very thick, the cell is observed clearly.