0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

Inhibitory effects of saturated fatty acids on methane production by methanogenic Archaea

J. O. Zeit 1  ,  
S. Bucher 1,  
X. Zhou 1,  
L. Meile 2,  
M. Kreuzer 1,  
 
1
ETH Zurich, Institute of Agricultural Sciences, Universitaetstrasse 2, 8092 Zurich, Switzerland
2
ETH Zurich, Institute of Food, Nutrition and Health, Schmelzbergstr. 7, 8092 Zurich, Switzerland
3
Current address: University of Zurich, Institute of Animal Nutrition, Winterthurerstrasse 260, 8057 Zurich, Switzerland
J. Anim. Feed Sci. 2013;22(1):44–49
Publish date: 2013-03-21
KEYWORDS
ABSTRACT
The present study investigated the inhibitory effects of saturated fatty acids on methanogenesis in Archaea, and whether or not competitive inactivation of the methanogens’ coenzyme M (HS-CoM) is involved in the inhibition. Strains tested in batch cultures were Methanosarcina barkeri, Methanosarcina mazei, Methanococcus voltae, all incubated at 37°C, and Methanothermobacter thermoautotrophicus, incubated at 65°C. The fatty acids C10, C12, C14 and C18 were supplemented at 1 mg · ml–1 in cultivation medium. The methanogens were susceptible to C10 and C12, and less so to C14. Only M. thermoautotrophicus was affected by C18. In M. mazei cultures, excessive HS-CoM did not prevent the action of C14 which might suggest that competitive inhibition of HS-CoM is not the reason for the SFA-induced effect on methanogenesis. The results indicate that, as a prerequisite to inhibit methanogenesis in Archaea, medium- and long-chain saturated fatty acids have to be at least partially molten.
CORRESPONDING AUTHOR
J. O. Zeit   
ETH Zurich, Institute of Agricultural Sciences, Universitaetstrasse 2, 8092 Zurich, Switzerland
 
CITATIONS (7):
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Biotechnology and Bioengineering
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M. Amirul Islam, Baranitharan Ethiraj, Chin Kui Cheng, Abu Yousuf, Md. Maksudur Rahman Khan
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Journal of Applied Microbiology
5. Inhibition Studies with 2-Bromoethanesulfonate Reveal a Novel Syntrophic Relationship in Anaerobic Oleate Degradation
A. F. Salvador, A. J. Cavaleiro, A. M. S. Paulo, S. A. Silva, A. P. Guedes, M. A. Pereira, A. J. M. Stams, D. Z. Sousa, M. M. Alves, Volker Müller
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Parinita Sharma, Anshuman A. Khardenavis, Hemant J. Purohit
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A. Jose Neto, J. D. Messana, L. G. Rossi, I. P. C. Carvalho, T. T. Berchielli
Animal Production Science
ISSN:1230-1388