Nancy et al (2010) [17] investigated biological
abatement for removal of inhibitors. Biological
abatement was used to condition dilute acid-
pretreated hydro lysates of three perennial
herbaceous crops that are potential bioenergy
feed stocks: switch grass, reed canary grass, and
alfalfa stems. Fungal isolate Coniochaeta ligniaria
was inoculated into the hydro lysates to
metabolize and remove inhibitory compounds
prior to yeast fermentation of glucose. Switch
grass, reed canary grass, and alfalfa stem samples
were pretreated with dilute acid at 10% w/w
biomass loading and subjected to bio abatement
with strain NRRL30616, to prepare the material for
simultaneous saccharification of cellulose and
fermentation by Saccharomyces cerevisiae. Bio
abatement eliminated the extended fermentation
lag times associated with inhibitory compounds
and observed for the unconditioned biomass
hydro lysates controls. Bio abatement was as effective as lime conditioning in reducing
fermentation lag times. Prolonged incubations
with the bio abatement microbe resulted in
consumption of some glucose and reduced
production of ethanol.