Study on the Bioemulsifier Produced by a Hydrocarbon- degrading Strain T7-2 and Its Physic-chemical Properties
- VernacularTitle:烃降解菌株T7-2产生的生物乳化剂及其理化性质研究
- Author:
Dan LI
;
Lei HUANG
;
Guo-Qiang LI
;
Zhao-Yu LI
;
Ting MA
;
Feng-Lai LIANG
;
Ru-Lin LIU
;
- Publication Type:Journal Article
- Keywords:
Bioemulsifier, Rhodococcus erythropolis, Bioremediation, Hydrocarbon degrading bacteria
- From:
Microbiology
1992;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
A low-temperature hydrocarbon-degrading strain T7-2, isolated from sea-mud of Bohai polluted area and identified as Rhodococcus erythropolis, was found to produce an extracellular, nondialyzable emul- sifying agent (referred to as bioemulsifier) when grew with hexadecane as carbon source. The results showed that, this bioemulsifier which could remarkably emulsify hydrocarbons such as diesel oil, is consisted of three parts-carbohydrates, lipids and proteins, the proportion of which was 55.43:31.24:12.65. The mono- saccharide compositions were identified as mannose and rhamnose; the lipid compositions included de- canoic acid, lauric acid, hexadecanoic acid and stearic acid, and the protein constituents were composed of sixteen amino acids. Besides, according to the study of the physic-chemical properties of the bioemulsifier, it possesses the obvious advantages of character stability, high function efficiency and wide adaptation range, therefore this bioemulsifier is believed to have extensive application values for bioremediation of marine oil pollution, petroleum exploitation and etc.
