Presence of methyl branched fatty acids and saturated hydrocarbons in botryococcene producing strain of Botryococcus braunii

2006 ◽  
Vol 28 (3) ◽  
pp. 251-256 ◽  
Author(s):  
C. Dayananda ◽  
R. Sarada ◽  
P. Srinivas ◽  
T. R. Shamala ◽  
G. A. Ravishankar
Keyword(s):  
Fatty Acids ◽  
Botryococcus Braunii ◽  
Saturated Hydrocarbons ◽  
Branched Fatty Acids ◽  
Methyl Branched Fatty Acids

scholarly journals Anaerobic 1-Alkene Metabolism by the Alkane- and Alkene-Degrading Sulfate Reducer Desulfatibacillum aliphaticivorans Strain CV2803T

2007 ◽  
Vol 73 (24) ◽  
pp. 7882-7890 ◽  
Author(s):  
Vincent Grossi ◽  
Cristiana Cravo-Laureau ◽  
Alain Méou ◽  
Danielle Raphel ◽  
Frédéric Garzino ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Inorganic Carbon ◽  
Direct Evidence ◽  
Gas Chromatography Mass Spectrometry ◽  
Sulfate Reducing ◽  
Branched Fatty Acids ◽  
Initial Activation ◽  
Fumarate Addition ◽  
Chain Lengths ◽  
Methyl Branched Fatty Acids

ABSTRACT The alkane- and alkene-degrading, marine sulfate-reducing bacterium Desulfatibacillum aliphaticivorans strain CV2803T, known to oxidize n-alkanes anaerobically by fumarate addition at C-2, was investigated for its 1-alkene metabolism. The total cellular fatty acids of this strain were predominantly C-(even number) (C-even) when it was grown on C-even 1-alkenes and predominantly C-(odd number) (C-odd) when it was grown on C-odd 1-alkenes. Detailed analyses of those fatty acids by gas chromatography-mass spectrometry after 6- to 10-week incubations allowed the identification of saturated 2- and 4-ethyl-, 2- and 4-methyl-, and monounsaturated 4-methyl-branched fatty acids with chain lengths that correlated with those of the 1-alkene. The growth of D. aliphaticivorans on (per)deuterated 1-alkenes provided direct evidence of the anaerobic transformation of these alkenes into the corresponding 1-alcohols and into linear as well as 10- and 4-methyl-branched fatty acids. Experiments performed with [13C]bicarbonate indicated that the initial activation of 1-alkene by the addition of inorganic carbon does not occur. These results demonstrate that D. aliphaticivorans metabolizes 1-alkene by the oxidation of the double bond at C-1 and by the subterminal addition of organic carbon at both ends of the molecule [C-2 and C-(ω-1)]. The detection of ethyl-branched fatty acids from unlabeled 1-alkenes further suggests that carbon addition also occurs at C-3. Alkylsuccinates were not observed as potential initial intermediates in alkene metabolism. Based on our observations, the first pathways for anaerobic 1-alkene metabolism in an anaerobic bacterium are proposed. Those pathways indicate that diverse initial reactions of 1-alkene activation can occur simultaneously in the same strain of sulfate-reducing bacterium.

scholarly journals Stereochemistry of the α-oxidation of 3-methyl-branched fatty acids in rat liver

1999 ◽  
Vol 40 (4) ◽  
pp. 601-609 ◽  
Author(s):  
Kathleen Croes ◽  
Minne Casteels ◽  
Martine Dieuaide-Noubhani ◽  
Guy P. Mannaerts ◽  
Paul P. Van Veldhoven
Keyword(s):  
Fatty Acids ◽  
Rat Liver ◽  
Branched Fatty Acids ◽  
Methyl Branched Fatty Acids

Linking Chemical and Microbial Diversity in Marine Sponges: Possible Role for Poribacteria as Producers of Methyl-Branched Fatty Acids

ChemBioChem ◽  
2010 ◽  
Vol 11 (18) ◽  
pp. 2572-2578 ◽  
Author(s):  
Thomas Hochmuth ◽  
Holger Niederkrüger ◽  
Christine Gernert ◽  
Alexander Siegl ◽  
Stefan Taudien ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Microbial Diversity ◽  
Marine Sponges ◽  
Branched Fatty Acids ◽  
Methyl Branched Fatty Acids

ChemInform Abstract: Synthesis of Methyl-Branched Fatty Acids.

ChemInform ◽  
1990 ◽  
Vol 21 (23) ◽  
Author(s):  
B. DOBNER ◽  
B. ELSNER ◽  
P. NUHN
Keyword(s):  
Fatty Acids ◽  
Branched Fatty Acids ◽  
Methyl Branched Fatty Acids

Identification of methyl-branched fatty acids from the triacylglycerols of subcutaneous adipose tissue of lambs

Lipids ◽  
1979 ◽  
Vol 14 (12) ◽  
pp. 953-960 ◽  
Author(s):  
A. Smith ◽  
A. G. Calder ◽  
A. K. Lough ◽  
W. R. H. Duncan
Keyword(s):  
Fatty Acids ◽  
Adipose Tissue ◽  
Subcutaneous Adipose Tissue ◽  
Branched Fatty Acids ◽  
Subcutaneous Adipose ◽  
Methyl Branched Fatty Acids

Activation of 3-methyl-branched fatty acids in rat liver

1994 ◽  
Vol 26 (9) ◽  
pp. 1095-1101 ◽  
Author(s):  
J.C.T. Vanhooren ◽  
S. Asselberghs ◽  
H.J. Eyssen ◽  
G.P. Mannaerts ◽  
P.P. Van Veldhoven
Keyword(s):  
Fatty Acids ◽  
Rat Liver ◽  
Branched Fatty Acids ◽  
Methyl Branched Fatty Acids
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