低能离子诱变烃降解菌所产表面活性剂的研究

Surfactant Produced by Hydrocarbon Degrading Bacteria Mutated with Low Energy Ion

菌株产表面活性剂的能力直接影响其对石油烃的降解和利用,大量的研究表明,生物表面活性剂可以通过胶束来渗透、润湿、乳化、增溶、发泡、消泡等作用促进石油的利用,有效提高石油烃的降解,加快油污土壤的生物修复过程。对菌株23产表面活性剂和菌株生长的关系,发酵液中表面活性剂的提取鉴定,以及生物表面活性剂的临界胶束浓度,对温度、pH、盐度的稳定性,对石蜡的乳化活性等理化性质进行了初步分析研究,为该菌株进一步的研究以及今后实际应用提供较多的资料和信息,为其应用领域提供理论依据,以便更好的发挥其在实际生产中的功能。

The ability of surfaetant produced by strains directly affects its degradation and utilization of petroleum hydrocarbons, much of study showed that the biosurfactants could permeate through the mieelle, wetting, emulsification, solubilization, foaming, and defoamiug actions to promote the use of petroleum, effectively improve the degradation of petroleum hydrocarbons, and to speed up the oil-spilled soil bioremediation process. The relationship between the pro- duetion of surfactant and the growth of strain 23, the extraction and identification of the surfactanl in the fermentation broth, as well as bio-surfactant critical mieelle concentration, the stability to temperature, pH, salinity, paraffin emulsification aetivity and other physical and chemical properties were preliminarily analyzed and studied in this paper; more data and information of this strain were provided for further studies and practical applications, and provide theoretical basis in their applications fields, in order to play their function in the actual production better.