茶叶科学
茶葉科學
다협과학
2015年
1期
91-96
,共6页
茶皂素%微生物%PCBs%诱导生物降解
茶皂素%微生物%PCBs%誘導生物降解
다조소%미생물%PCBs%유도생물강해
tea saponin%microorganism%PCBs%induced biodegradation
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。
從土壤中篩選分離齣兩株茶皂素利用菌WTS和YTS，這兩箇菌株在利用茶皂素生長繁殖的同時，對多氯聯苯（PCBs）的降解有明顯的促進作用。在茶皂素共存的條件下，WTS菌對PCB 77、PCB 118和PCB 138的降解速率常數分彆提高瞭4.3倍、4.8倍和2.8倍，YTS菌對PCB 77、PCB 118和PCB 138的降解速率常數分彆提高瞭7.1倍、9.1倍和8.9倍。結果初步錶明，茶皂素能明顯促進微生物對多氯聯苯的降解，可望開髮成一種良好的PCBs降解誘導劑，值得進一步深入研究。
종토양중사선분리출량주다조소이용균WTS화YTS，저량개균주재이용다조소생장번식적동시，대다록련분（PCBs）적강해유명현적촉진작용。재다조소공존적조건하，WTS균대PCB 77、PCB 118화PCB 138적강해속솔상수분별제고료4.3배、4.8배화2.8배，YTS균대PCB 77、PCB 118화PCB 138적강해속솔상수분별제고료7.1배、9.1배화8.9배。결과초보표명，다조소능명현촉진미생물대다록련분적강해，가망개발성일충량호적PCBs강해유도제，치득진일보심입연구。
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.
