Authors :
Alexis Dzokom; Jules Balna; Joël Tizé Koda; Félix Watang Zieba; Roger Djouldé Darman
Volume/Issue :
Volume 9 - 2024, Issue 4 - April
Google Scholar :
https://tinyurl.com/43n26kxb
Scribd :
https://tinyurl.com/2z7wkfjm
DOI :
https://doi.org/10.38124/ijisrt/IJISRT24APR135
Abstract :
The management of invasive plants such as
Eichhornia crassipes and the fruits of Azadirachta indica
on the banks of the waters of Lake Chad in the Far North
of Cameroon remains a challenge to overcome. On the
other hand, given the urgency of finding other sources of
energy following the scarcity of fossil fuels, it becomes
appropriate to turn to renewable energies obtained from
lignocellulosic biomasses which constitute an opportunity
to be seized as cooking energy. The objective of this study
is to determine the ethanoic potential of the biomass of
Eichhornia crassipes associated with the pulp of
Azadirachta indica. Thus, the production of bioethanol
from the biomass of Eichhornia crassipes associated with
the pulp of Azadirachta indica was done by biochemical
route which results in: physical pretreatment of the raw
material, thermo-mechanical pre-hydrolysis chemical,
alcoholic fermentation with Lactobacillus fermentum
yeast in batch mode and distillation. Measuring the pH
and volatile fatty acid (VFA) content in different
fermented samples made it possible to determine the
optimal conditions for better fermentation. During 135
hours of fermentation, with 1281.25±1.09 ml of initial raw
material fermented, it was possible to obtain on average
675.47±1.02 ml/g of hydrated ethanol and 640.62 ±5.07
ml/g of CO2 with an average weight yield of 52.72±3.57%.
Thanks to a yeast contribution of 2.5% relative to the dry
matter and an L/S ratio = 20, the dosage of the distillate
obtained after distillation of the fermented must by the
chronometric method made it possible to determine the
ethanoic concentration of the solutions studied which is on
average 0.94±0.01%V/V of distillate per fermented
biomass.
Keywords :
Bioethanol, Eichhornia crassipes, Azadirachta indica, Fermentation, Cooking Energy.
The management of invasive plants such as
Eichhornia crassipes and the fruits of Azadirachta indica
on the banks of the waters of Lake Chad in the Far North
of Cameroon remains a challenge to overcome. On the
other hand, given the urgency of finding other sources of
energy following the scarcity of fossil fuels, it becomes
appropriate to turn to renewable energies obtained from
lignocellulosic biomasses which constitute an opportunity
to be seized as cooking energy. The objective of this study
is to determine the ethanoic potential of the biomass of
Eichhornia crassipes associated with the pulp of
Azadirachta indica. Thus, the production of bioethanol
from the biomass of Eichhornia crassipes associated with
the pulp of Azadirachta indica was done by biochemical
route which results in: physical pretreatment of the raw
material, thermo-mechanical pre-hydrolysis chemical,
alcoholic fermentation with Lactobacillus fermentum
yeast in batch mode and distillation. Measuring the pH
and volatile fatty acid (VFA) content in different
fermented samples made it possible to determine the
optimal conditions for better fermentation. During 135
hours of fermentation, with 1281.25±1.09 ml of initial raw
material fermented, it was possible to obtain on average
675.47±1.02 ml/g of hydrated ethanol and 640.62 ±5.07
ml/g of CO2 with an average weight yield of 52.72±3.57%.
Thanks to a yeast contribution of 2.5% relative to the dry
matter and an L/S ratio = 20, the dosage of the distillate
obtained after distillation of the fermented must by the
chronometric method made it possible to determine the
ethanoic concentration of the solutions studied which is on
average 0.94±0.01%V/V of distillate per fermented
biomass.
Keywords :
Bioethanol, Eichhornia crassipes, Azadirachta indica, Fermentation, Cooking Energy.
