陕西科技大学学报(自然科学版)
陝西科技大學學報(自然科學版)
협서과기대학학보(자연과학판)
JOURNAL OF SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
2014年
1期
34-38
,共5页
花莉%洛晶晶%胡阳阳%彭香玉%贾卫华
花莉%洛晶晶%鬍暘暘%彭香玉%賈衛華
화리%락정정%호양양%팽향옥%가위화
石油污染%产表面活性剂微生物%筛选%鉴定
石油汙染%產錶麵活性劑微生物%篩選%鑒定
석유오염%산표면활성제미생물%사선%감정
oil pollution%microorganism producing surfactant%screening%identification
从长期受油污的土壤中分离得到了7株降解石油类菌株,其编号分别为菌2-1、菌7-1、菌1-2、菌5-2、菌7-2、菌油3及菌油5.经形态观察、Biolog鉴定和16S rDNA 基因序列分析,可鉴定菌2-1和菌7-1为粘质沙雷氏菌,菌1-2为居植物柔武氏菌,菌5-2、菌油3和菌油5都为克雷伯氏菌属,菌7-2为蜡状芽孢杆菌.其中,菌1-2、菌5-2和菌7-2能使发酵液的表面张力从36.10 m N/m降低至20.20 m N/m、20.74 m N/m、21.78 m N/m ,表明这些菌所产生的表面活性剂能具有较强的乳化原油的能力,展现了较大的应用前景.
從長期受油汙的土壤中分離得到瞭7株降解石油類菌株,其編號分彆為菌2-1、菌7-1、菌1-2、菌5-2、菌7-2、菌油3及菌油5.經形態觀察、Biolog鑒定和16S rDNA 基因序列分析,可鑒定菌2-1和菌7-1為粘質沙雷氏菌,菌1-2為居植物柔武氏菌,菌5-2、菌油3和菌油5都為剋雷伯氏菌屬,菌7-2為蠟狀芽孢桿菌.其中,菌1-2、菌5-2和菌7-2能使髮酵液的錶麵張力從36.10 m N/m降低至20.20 m N/m、20.74 m N/m、21.78 m N/m ,錶明這些菌所產生的錶麵活性劑能具有較彊的乳化原油的能力,展現瞭較大的應用前景.
종장기수유오적토양중분리득도료7주강해석유류균주,기편호분별위균2-1、균7-1、균1-2、균5-2、균7-2、균유3급균유5.경형태관찰、Biolog감정화16S rDNA 기인서렬분석,가감정균2-1화균7-1위점질사뢰씨균,균1-2위거식물유무씨균,균5-2、균유3화균유5도위극뢰백씨균속,균7-2위사상아포간균.기중,균1-2、균5-2화균7-2능사발효액적표면장력종36.10 m N/m강저지20.20 m N/m、20.74 m N/m、21.78 m N/m ,표명저사균소산생적표면활성제능구유교강적유화원유적능력,전현료교대적응용전경.
7 strains degrading oil were isolated from long-term oil-contaminated soil and they were numbered as bacteria 2-1 ,bacteria 7-1 ,bacteria 1-2 ,bacteria5-2 ,bacteria 7-2 ,bacteria oil 3 ,bacteria oil 5 ,of which bacteria 2-1 and bacteria 7-1 were identified as Serratia marces-cens ,bacteria 1-2 as Raoultella planticola ,bacteria 5-2 ,bacteria oil 3 ,and bacteria oil 5 as Klebsiella genus ,bacteria 7-2 as Bacillus cereus by morphological observation ,Biolog identi-fication and 16S rDNA gene sequence analysis .Bacteria 1-2 ,bacteria 5-2 and bacteria 7-2 en-abled the surface tension of the fermentation liquid reduce from 36 .1 mN /m to 20 .2 mN /m ,20 .74 mN /m and 21 .78 mN/m ,indicating the surfactants produced by the bacteriums have a strong emulsification crude capacity and show great potential .