Optimization and characterization of biosurfactant production from marine Vibrio sp strain 3B-2
Hu, Xiaoke1; Wang, Caixia1,2; Wang, Peng3
发表期刊FRONTIERS IN MICROBIOLOGY
ISSN1664-302X
2015-09-28
卷号6
关键词Microbial Biosurfactant Optimal Production Surface Tension Vibrio Alginolyticus Glycoproteins
DOI10.3389/fmicb.2015.00976
英文摘要A biosurfactant-producing bacterium, designated 3B-2, was isolated from marine sediment and identified as Vibrio sp. by 16S rRNA gene sequencing. The culture medium composition was optimized to increase the capability of 3B-2 for producing biosurfactant. The produced biosurfactant was characterized in terms of protein concentration, surface tension, and oil-displacement efficiency. The optimal medium for biosurfactant production contained: 0.5% lactose, 1.1% yeast extract, 2% sodium chloride, and 0.1% disodium hydrogen phosphate. Under optimal conditions (28 degrees C), the surface tension of crude biosurfactant could be reduced to 41 from 71.5 mN/m (water), while its protein concentration was increased to up to 6.5 g/L and the oil displacement efficiency was improved dramatically at 6.5 cm. Two glycoprotein fractions with the molecular masses of 22 and 40 kDa were purified from the biosurfactant, which held great potential for applications in microbial enhanced oil recovery and bioremediation.
文章类型Article
资助机构project of on-site sediment microbial remediation of public area of central Bohai Sea, North China Sea Branch of State Oceanic Administration(QDZC20150420-002) ; National Natural Science Foundation of China(41376138) ; Hundred Talents Program of Chinese Academy of Sciences
收录类别SCI
语种英语
关键词[WOS]ANALYTICAL HIERARCHY PROCESS ; CRUDE-OIL ; BIOEMULSIFIER ; HYDROCARBON ; BACTERIA ; MICROORGANISMS ; FERMENTATION ; SURFACTANTS ; CULTURE ; FIBERS
研究领域[WOS]Microbiology
WOS记录号WOS:000378319700001
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被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/17091
专题中国科学院海岸带环境过程与生态修复重点实验室
海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Chunhui Rd, Yantai 264003, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Ocean Univ China, Qingdao, Peoples R China
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Hu, Xiaoke,Wang, Caixia,Wang, Peng. Optimization and characterization of biosurfactant production from marine Vibrio sp strain 3B-2[J]. FRONTIERS IN MICROBIOLOGY,2015,6.
APA Hu, Xiaoke,Wang, Caixia,&Wang, Peng.(2015).Optimization and characterization of biosurfactant production from marine Vibrio sp strain 3B-2.FRONTIERS IN MICROBIOLOGY,6.
MLA Hu, Xiaoke,et al."Optimization and characterization of biosurfactant production from marine Vibrio sp strain 3B-2".FRONTIERS IN MICROBIOLOGY 6(2015).
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