The aim of the present study was to investigate the ability of Bacillus megaterium IBBPₒ₁₇ (GenBank KX499518) cells to produce biosurfactant when the growth was done in the presence of long-chain n-alkane n-hexadecane on medium supplemented with yeast extract, proteose peptone, starch, or cellulose. B. megaterium IBBPₒ₁₇ revealed a higher growth in the presence of n-hexadecane when the medium was supplemented with yeast extract, proteose peptone, or starch, compared with cellulose. Biosurfactant production was higher when B. megaterium IBBPₒ₁₇ was grown in the presence of n-hexadecane on yeast extract, proteose peptone, or starch supplemented medium, compared with biosurfactant produced on cellulose supplemented medium. A direct correlation between cell growth and biosurfactant production was observed. When the growth of B. megaterium IBBPₒ₁₇ cells was higher, the decrease in pH values of the medium was higher too, and more amount of CO₂ was released. Changes in cell morphology, aggregation of the cells in clusters, and biofilm formation were observed when B. megaterium IBBPₒ₁₇ was grown in the presence of n-hexadecane on medium supplemented with yeast extract, proteose peptone, starch, or cellulose. Due to its physiological abilities, this Gram-positive bacterium could be a promising candidate for the bioremediation of petroleum hydrocarbon polluted environments.
显示更多 [+] 显示较少 [-]
AGRIS - 国际农业科技情报系统
Share
出版者
The Wilson Ornithological Society
其它主题
Biosurfactants; Cell growth; N-hexadecane; Cell structures; Carbon sources; Yeast extract; Peptones; Hexadecane; Biosurfactant production
语言
英语
注释
Nal-ap-2-clean
类型
Journal Article; Text
2024-02-29
2026-02-03
MODS