ETHANOL PRODUCTION FROM CASSAVA STARCH USING THE PROCESS STRATEGY SIMULTANEOUS SACCHARIFICATION-FERMENTATION
Keywords:Bioethanol, cassava starch, simultaneous saccharification and fermentation (SSF), Separated
The world trend on fuel management, in special biofuels like ethanol, have gone to explorer new
methodologies of process to optimize its production by this reason in this research is about simultaneous
sacarification fermentation process and evaluate initial concentration of reducing sugar, and enzyme
dosing of Spirizyme fuel® are evaluated on productivity and final concentration of ethanol, under SSF
(Simultaneous Saccharification and Fermentation) process, from the product of the licuefaction process
of cassava starch as substrate. The SSF process is evaluated against SHF (Independent Saccharification and
Fermentation) process as control. Only the factor, initial concentration of substrate presents effect over
ethanol productivity. The kinetic of SSF process, in opposite to the SHF process, presents time diminution
of the global process around 47 y 33% to substrate levels of 150 and 200 g/l respectively. The productivity
values are most at a 33% to 150 g/l of reducing sugar, and they keep constant to 200 g/l reducing sugar. The glucose in SSF strategy, at the time it is producing, it is transformed to ethanol, does not allowing to reach
superior concentration to 100 g/l of reducing sugar, this implicates there is not substrate inhibition. The
ethanol concentration doesn’t affect the enzymatic process of sacharification. The SSF process demonstrates
his technical viability on the ethanol production, to reduce time an energy requirements on the ethanol
production from cassava flour.
How to Cite
Copyright Notice and Open Access Statement
The Journal Vitae works under the Open Access license, and the published manuscripts remain available for the public, both on the Journal's website and in databases, under the Creative Commons license, "Noncommercial Attribution" and "Share alike" systems, adopted in Colombia. Hence, when the authors agree to publish in the Journal Vitae, they will not have the right to economic retributions on publications and reproductions through different diffusion media. The documents are freely available to the internet public, permitting users to read, download, copy, distribute, print, search, or link to the full texts and pass them as data to software. The only constraint on reproduction and distribution, and the only role for copyright in this domain, should be to give authors control over the integrity of their work and the right to be appropriately acknowledged and cited.
Authors declare that:
They are the intellectual property owners and are responsible for all the information stated in the article.
This manuscript has not been submitted or published in other printed or digital media. They accept the responsibility for the judgments, opinions, and points of view expressed in the published article and, therefore, they exonerate Universidad de Antioquia and Journal Vitae from any process.
They exempt Universidad de Antioquia and Journal Vitae from settling conflicts or disputes related to the authorship of the referred article.
They accept the revision of the original manuscript by suitable personnel, and they bind themselves to perform the corrections appointed or suggested by the assessors.
Therefore, they know the editorial process and will not bind the Editorial Board of the Journal to assume any obligations regarding the volume and issue in which the article is published.
They transfer the rights of publication, reprinting, and distribution of the article from the moment of its approval, in print and digital format, without the right to economic rewards, and under the licensing conditions considered relevant by Journal Vitae.
They fully authorize Universidad de Antioquia and Journal Vitae to submit the published material to the diverse databases and indexing systems where the Journal can be found to comply with the requirements of the regulatory authorities to maintain the national classification of journals.
They will assume the article publication costs established for the current issue, and they will make the payment as soon as they are informed about the volume and the issue in which the final version of the article is published.
After the article is published, you can share digital or printed copies in a noncommercial manner. You will be able to use the paper in your institution or company for educational or research purposes, including the use in course programs.
Conflict of interest: Authors are responsible for recognizing and disclosing any financial or other benefits that could be perceived to bias their work, acknowledging all financial support and any personal connections with potential sponsors. Examples of such conflicts include receiving research funds or honoraria, serving on advisory boards, stock ownership, or employment and consulting arrangements. Authors without such connections should clearly state that they have no financial support or personal relationships that could be perceived to bias their work. All conflicts of interest should be disclosed on the author's identification page of the manuscript.