论文信息 - Sterols and fatty acids in foams from Antarctic lakes of the Dry Valleys in south Victoria Land

Sterols and fatty acids in foams from Antarctic lakes of the Dry Valleys in south Victoria Land

Sterols and fatty acids were studied for foam samples from lakes of Wright Valley in the Dry Valleys of south Victoria Land, Antarctica. Sterols, cholesta-5, 22-dien-3β-ol, cholest-5-en-3β-ol, 24-methylcholesta-5, 22-dien-3β-ol, 24-methylcholest-5-en-3β-ol, 24-ethylchlesta-5, 22-dien-3β-ol, 24-ethylcholest-5-en-3β-ol and 5α-cholestan-3β-ol, and fatty acids ranging from C10 to C28, including n-alkanoic, branched (iso and anteiso) and unsaturated acids were found in the foam samples. The dominant sterol was cholest5-en-3β-ol or 24-ethylcholest-5-en-3β-ol. The sterol and fatty acid compositions of the foam samples are similar to those of epibenthic organisms (mainly cyanobacteria). The sources of the sterols and fatty acids are most likely cyanobacteria. In addition, these lipid components were concentrated considerably in the foams.

T. Hanya | T. Torii | G. Matsumoto

[1] T. Hanya,et al. A review of organic geochemistry in Antarctica , 1984 .

[2] T. Hanya,et al. Stenols and phytol in lake sediments from Syowa and Vestfold Oases in the Antarctic , 1983 .

[3] T. Hanya,et al. High abundance of algal 24-ethylcholesterol in Antarctic lake sediment , 1982, Nature.

[4] T. Hanya,et al. High abundances of long-chain normal alkanoic acids in Antarctic soil , 1981, Nature.

[5] Hanya,et al. Distribution of Organic Constituents in Lake Waters and Sediments of the McMurdo Sound Region in the Antarctic , 1979 .

[6] J. Oró,et al. 14C Incorporation into the Fatty Acids and Aliphatic Hydrocarbons of Sarcina lutea , 1967, Journal of Bacteriology.

[7] T. Kaneda. Fatty Acids in the Genus Bacillus I. Iso- and Anteiso-Fatty Acids as Characteristic Constituents of Lipids in 10 Species , 1967, Journal of bacteriology.

[8] P. L. Parker,et al. Branched-Chain Fatty Acids in Sediments , 1966, Science.

[9] Yoshiaki Toba,et al. Drop Production by Bursting of Air Bubbles on the Sea Surface (II) Theoretical Study on the Shape of Floating Bubbles , 1959 .

[10] A. H. Woodcock,et al. Bubble Formation and Modification in the Sea and its Meteorological Significance , 1957 .

[11] A. H. Woodcock,et al. Giant Condensation Nuclei from Bursting Bubbles , 1953, Nature.