从土壤中筛选分离出两株茶皂素利用菌WTS和YTS，这两个菌株在利用茶皂素生长繁殖的同时，对多氯联苯（PCBs）的降解有明显的促进作用。在茶皂素共存的条件下，WTS菌对PCB 77、PCB 118和PCB 138的降解速率常数分别提高了4.3倍、4.8倍和2.8倍，YTS菌对PCB 77、PCB 118和PCB 138的降解速率常数分别提高了7.1倍、9.1倍和8.9倍。结果初步表明，茶皂素能明显促进微生物对多氯联苯的降解，可望开发成一种良好的PCBs降解诱导剂，值得进一步深入研究。%Two bacterial strains named temporally asWTS and YTSwereseparated from the soil,and theycould utilize tea saponin for growingandshowedsignificant promotioneffect onthe biodegradation of PCBs. Under the condition of coexistence with tea saponin, thedegradationrate constantsof PCB 77, PCB 118 and PCB 138were increasedby4.3 times, 4.8 times and 2.8 times, respectively, by WTS,and7.1 times, 9.1 times and 8.9 times. respectively,byYTScompared to those treatments withouttea saponin.The results indicated that tea saponin could promotethe biodegradation ofPCBs,implying thattea saponin mightbeapotentialinducerfor the biodegration ofPCBs.
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