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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Real-Time Monitoring of Bioethanol Fermentation with Industrial Musts Using Mid-Infrared Spectroscopy

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Rodrigues, Kaio C. S. [1] ; Sonego, Jorge L. S. [1] ; Bernardo, Andre [1] ; Ribeiro, Marcelo P. A. [1] ; Cruz, Antonio J. G. [1] ; Badino, Alberto C. [1]
Total Authors: 6
[1] Univ Fed Sao Carlos, Grad Program Chem Engn, CP 676, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Industrial & Engineering Chemistry Research; v. 57, n. 32, p. 10823-10831, AUG 15 2018.
Web of Science Citations: 0

The development of rapid, accurate, and cost-effective technologies for process monitoring is highly desirable in the biofuels sector. Here, a technique based on the combination of Fourier transform mid-infrared (FT-MIR) spectroscopy and partial least-squares (PLS) regression was evaluated as a tool for real-time monitoring of the process for bioethanol production from sucrose by Saccharomyces cerevisiae. Industrial musts composed of juice and molasses of sugar cane and sweet sorghum juice were used in the fermentations. Considering the chemical complexity of the substrates, the PLS models presented excellent external validation results, with root-mean-square error of prediction (RMSEP) values of 0.54, 1.02, 0.66, 1.93, 0.50, and 1.64 g L-1 for sucrose, glucose, fructose, ethanol, glycerol, and cells, respectively. The findings demonstrated that FT-MIR spectroscopy can be applied for real-time monitoring of the process, with potential to reduce costs and provide accurate information for more efficient control of the process. (AU)

FAPESP's process: 14/26854-9 - Study of ethanol production and recovery process: integration of processes extractive fermentation with carbon dioxide and recovery in absorption column
Grantee:Kaio César da Silva Rodrigues
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 12/50046-4 - Study of Integrated Process for Ethanol 1G Production and Recovery
Grantee:Alberto Colli Badino Junior
Support type: Research Grants - Research Partnership for Technological Innovation - PITE