酵母菌株Pseudozyma rugulosa对合成染料脱色的初步研究

PRELIMINARY STUDY ON DECOLORIZATION OF SYNTHETIC DYES WITH YEAST PSEUDOZYMA RUGULOSA

通过筛选实验,从土壤中分离出一株对活性艳红KBP具有明显脱色效果的酵母菌株,鉴定为Pseudozymarugulosa.采用含50mg·l-1活性艳红K2BP的液体培养基同步培养脱色,发现该菌株在9h时对活性艳红K2BP的脱色率为99%.此外,该菌株对另外九种染料的脱色率在22%—98%之间.其中,对偶氮染料——弱酸艳红B、活性黑KNB和活性红M3BE的脱色率都达到了96%以上,对三苯甲烷染料——酸性媒介漂蓝B的脱色率达到了89%.

A yeast isolate, capable of degrading reactive brilliant red K-2BP, identified as Pseudozyma rugulosa, was obtained from the soil by screening experiments.This strain gave a maximal decolorization rate (99%) for reactive brilliant red K-2BP (50mg·l^-1 ) after the incubation of 24h. For another nine dyes, their decolorization rates were within a range of 22%—98%. Specially for azo dyes, including weak acid brilliant red B, reactive black KN-B and reactive red M-3BE, their decolorization rates were over 96%. In addition, this strain could also remove triphenylmethane dye,mordant blue B, up to 89% of decolorization.