+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Surface active properties of bio surfactant from corynebacterium lepus

Surface active properties of bio surfactant from corynebacterium lepus

Journal of the American Oil Chemists' Society 58(1): 77-80

A mixture of corynomycolic acids (R1-CH(OH)-CH(R2)-COOH) isolated from C. lepus had excellent surfactant properties. It caused significant lowering of surface tension in aqueous solution and the interfacial tension between water and hexadecane at all pH values of 2-10. A series of carboxylic acids and some hydroxy-carboxylic acids and alcohols were also studied as a comparison. None of these caused as large a lowering of the surface and interfacial tensions as the corynomycolic acids. The series of carboxylic acids studied showed that surfactant properties depend on the length of the alkyl chain and the pH of the solution in a manner consistent with the hydrophilic-lipophilic balance of these compounds. Hydroxyl substituents caused considerable enhancement of the surfactant properties of long chain carboxylic acids if they were located close to the carboxyl function. [Corynomycolic acids have been used to enhance bitumen recovery by a cold water extraction process.].

(PDF 0-2 workdays service: $29.90)

Accession: 006546395

Download citation: RISBibTeXText

Related references

Production of surface-active lipids by Corynebacterium lepus. Applied and Environmental Microbiology 37(1): 4-10, 1979

The isolation and characterization of a surface active lipid from corynebacterium lepus. Canadian Federation of Biological Societies Proceedings (21): 73, 1978

Release of surfactant from corynebacterium lepus with alkenes. Biotechnology Letters 3(10): 583-588, 1981

Effects of oxygenation and mixing on surfactant production by corynebacterium lepus. Canadian Federation of Biological Societies Proceedings (21): 176, 1978

Domains of surfactant protein A that are required for lipid aggregate structures and surface active properties of surfactant. Comparative Biochemistry & Physiology Part B Biochemistry & Molecular Biology 126B(Suppl 1): S75, July, 2000

Surfactant production from hydro carbons by corynebacterium lepus and pseudomonas asphaltenicus. Underkofler, Leland A (Ed ) Developments in Industrial Microbiology, Vol 19 Proceedings Of The 34th General Meeting Of The Society For Industrial Microbiology East Lansing, Mich , Usa Aug 21-26, 1977 Xvi+624p Illus Society For Industrial Microbiology: Arlington, Va , Usa 577-599, 1978

Production and release of surfactant by corynebacterium lepus in hydrocarbon and glucose media. Biotechnology Letters 7(11): 793-796, 1985

Status of the surface-active properties of surfactant in bronchial asthma. Klinicheskaia Meditsina 62(4): 41-46, 1984

State of surface active properties of a surfactant in bronchial asthma. Klinicheskaya Meditsina (Moscow) 62(4): 41-46, 1984

Renin activity and surface active properties of a pulmonary surfactant. Vyestsi Akademii Navuk BSSR Syeryya Biyalahichnykh Navuk (1): 97-99, 1979

Surface-active properties of phosphatidylcholines--basis for surfactant replacement therapy. Biulleten' Eksperimental'noi Biologii i Meditsiny 129(2): 168-170, 2000

Improved surface active properties of perfluorocarbon and exogenous pulmonary surfactant mixtures. Pediatric Research 41(4 PART 2): 303A, 1997

Phosphatidylcholines as a basis of artificial lung surfactant: Comparison of surface-active properties. Biomeditsinskaya Khimiya 50(2): 180-186, 2004

Surface-active properties and composition of pulmonary surfactant in patients with diseases of the bronchopulmonary system. Vrachebnoe Delo: 49-50, 1983