直链烷基苯磺酸钠降解菌的降解特性

Biodegradative characters of Lasdegrading bacterium

94_01假单胞菌(Pseudomonassp.)、94_02气单胞菌(Aeromonassp.)能以LAS为唯一碳源生长 ,可以在150mg/L的LAS中生长 ,在LAS为30mg/L的培养基中培养5d ,LAS的降解率分别为96 %、99 %。该二菌株的生长和降解LAS的最适温度分别是35℃、30℃ ,最适 pH均为7.0。LAS的降解率与菌体细胞的生长率同步。

Pseudomonas sp.)、94_02(Aeromonas sp.) were able to grow on LAS as sole carbonsource,they were capable of growing in 150mg/L LAS medium.They can degrade 96%、99% LAS in30mg/L medium in 5 d.The optimum temperature and pH for growth and LAS degradation were 35℃、30℃ and 7.0,respectively.The rate of LAS degradation in step with the rate of growing.