Open AccessOptimization of Ethanol Production Process from Cassava Starch by Surface Response
Author(s) -
Leticia López Zamora,
J. A. González-Calderón,
Evangelina Trujillo,
Eusebio Bolaños Reynoso
Publication year - 2019
Publication title -
journal of the mexican chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.172
H-Index - 22
ISSN - 2594-0317
DOI - 10.29356/jmcs.v54i4.906
Subject(s) - starch , response surface methodology , hydrolysis , ethanol fuel , fermentation , quadratic model , ethanol , process optimization , ethanol fermentation , acid hydrolysis , process (computing) , chemistry , pulp and paper industry , biochemistry , mathematics , microbiology and biotechnology , computer science , chromatography , chemical engineering , engineering , biology , operating system
This work shows the study of the optimization process for producing ethanol from cassava starch based on 2 2 experimental designs with three central points and using statistical software. This methodology was applied to the stage of saccharification of cas- sava starch by acid hydrolysis as well as to the stage of fermentation using Saccharomyces cerevisiae. From the experimental data of acid hydrolysis, we proposed a first-order kinetic model which presented an average error of 1.87 % compared to the quadratic regression obtained. The development of a semi-continuous process showed a 89.84 % conversion of starch initially considered, yielding an ethanol concentration of 49.76 % Alc/vol.
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