CAJ | 학술논문

从石油污染土壤中分离到4株对柴油、正己烷等烃类具有乳化作用的细菌。对4株菌的耐盐碱情况进行了研究,结果表明这4株菌株均能耐受较高的盐碱环境并产生生物乳化剂,其中菌株 FB 8的乳化活性最高。将菌株 FB 8进行发酵培养,采用盐沉法从发酵液中提取到生物乳化剂粗品,得率为1.62 g/L,该物质能够在高盐碱条件下乳化柴油。分离到的4株菌可用于石油污染盐碱土壤的生物修复。
종석유오염토양중분리도4주대시유、정기완등경류구유유화작용적세균。대4주균적내염감정황진행료연구,결과표명저4주균주균능내수교고적염감배경병산생생물유화제,기중균주 FB 8적유화활성최고。장균주 FB 8진행발효배양,채용염침법종발효액중제취도생물유화제조품,득솔위1.62 g/L,해물질능구재고염감조건하유화시유。분리도적4주균가용우석유오염염감토양적생물수복。
Four bacteria strains which could emulsify diesel and hydrocarbon are isolated from the oil-contaminated soil.The characteristics for producing emulsifier of these strains are studied.The results show that these strains can grow under the high saline-alkali concentration and produce bioemulsifier. Strain FB 8 is best fermented.By salting out method,bioemulsifier is separated and purified from the fermentation fluid;the yield was 1.624 g/L.This bioemulsifier could emulsify the diesel under high sa-line-alkali conditions.These strains were useful in the bioremediation of oil-polluted saline-alkali soil.