All 4 cultures have considerable decoloration effect on 6 dyes: about 90% decoloration rate for methyl orange, orange I, methylene blue, 80% for congo red, direct blue and 60% for crystal violet.

• 结果表明；4种培养物对6种染料都有明显的脱色效果；甲基橙、橙I、次甲基蓝脱色率在90%25左右；刚果红、直接湖蓝脱色率在80%25左右；结晶紫脱色率在60%25左右.