extracellular enzymes which hydrolyse the polymers. This step occurs in two phases
firstly the bacteria colonise on the surface of the soil and these anaerobic microorganisms release extracellular enzymes and produce monomers, the second phase is
these organisms utilize monomers as substrates.
The anaerobic decomposition of the lignocellulosic matter is a limiting factor.
Lignocelllulosic matter has to be pretreated with acid or alkali or any other costeffective method.
Complex Organic molecules
(Proteins, Carbohydrates, Lipids)
Monomers of Organic molecules
(Peptides, Simple sugars, Fatty acids and Glycerol,
amino acids)
Hydrolysis
Intermediates
(Alcohols, Simple sugars, Fatty acids and lactate
etc)
Fermentation
Acetogenesis
Acetate
H2 + CO2
Anaerobic Oxidation
Methane
Hydrogentropic
methanogenesis
Acetotropic
methanogenesis
Fig. 2.7 Biogas decomposition from organic matter (Caruso et al. 2019; Panwar et al. 2014)
58
N. Jaiswal et al.
firstly the bacteria colonise on the surface of the soil and these anaerobic microorganisms release extracellular enzymes and produce monomers, the second phase is
these organisms utilize monomers as substrates.
The anaerobic decomposition of the lignocellulosic matter is a limiting factor.
Lignocelllulosic matter has to be pretreated with acid or alkali or any other costeffective method.
Complex Organic molecules
(Proteins, Carbohydrates, Lipids)
Monomers of Organic molecules
(Peptides, Simple sugars, Fatty acids and Glycerol,
amino acids)
Hydrolysis
Intermediates
(Alcohols, Simple sugars, Fatty acids and lactate
etc)
Fermentation
Acetogenesis
Acetate
H2 + CO2
Anaerobic Oxidation
Methane
Hydrogentropic
methanogenesis
Acetotropic
methanogenesis
Fig. 2.7 Biogas decomposition from organic matter (Caruso et al. 2019; Panwar et al. 2014)
58
N. Jaiswal et al.