Biochemical processing of carbohydrate-rich biomass

Biomethanation

Methane fermentation or anaerobic digestion
Under normal T and pressure

Schematic for kitchen garbage
food waste
manure

Bio-chemical

Anaerobic digestion

process through
which bacteria
break down organic matter

Aerobic Digestion

the degradation of the organic sludge solids in presence of oxygen

fermentation

metabolic process
that produces chemical
changes in organic
substrates through the
action of enzymes

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Conversion of lignocellulosic feedstocks to sugar

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Ethanol Fermentation of Saccharine Materials

Products of Acetone-Butanol Fermentation

Fermentation of sugars and starches

hydrogen fermentation

Lactic Acid Fermentation

Biomass Resources for Lactic Acid Fermentation

Starch is obtained from crops

Before ethanol fermentation, biomass has to be pre-treated with acid or alkali