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Silva RD, da Silva FLH, de Melo Santos SF, Neto ABT, Lopes JD, de Assis Cavalcante J. Development of a model for the ethanol concentration limit as a function of temperature and initial substrate concentration using the yeast Saccharomyces cerevisiae. Biotechnol Bioeng 2024; 121:2742-2751. [PMID: 39138870 DOI: 10.1002/bit.28771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 05/10/2024] [Accepted: 05/30/2024] [Indexed: 08/15/2024]
Abstract
In this study, a model was developed to simulate the effect of temperature (T $T$ ) and initial substrate concentration (S 0 ${S}_{0}$ ) on the ethanol concentration limit (P max ${P}_{\max }$ ) using the yeast Saccharomyces cerevisiae. To achieve this, regressions were performed using data provided by other authors forP max ${P}_{\max }$ to establish a model dependent onT $T$ andS 0 ${S}_{0}$ capable of predicting results with statistical significance. After constructing the model, a response surface was generated to determine the conditions whereP max ${P}_{\max }$ reaches higher values: temperatures between 28°C and 32°C and an initial substrate concentration around 200 g/L. Thus, the proposed model is consistent with the observations that increasing temperatures decrease the ethanol concentration obtained, and substrate concentrations above 200 g/L lead to a reduction in ethanol concentration even at low temperatures such as 28°C.
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Affiliation(s)
- Ruan Dionízio Silva
- Laboratory of Bioengineering, Technology Center (TC), Federal University of Paraíba, João Pessoa, Paraíba, Brazil
| | | | | | - Alberto Brandão Torres Neto
- Laboratory of Bioengineering, Technology Center (TC), Federal University of Paraíba, João Pessoa, Paraíba, Brazil
| | - Julice Dutra Lopes
- Laboratory of Bioengineering, Technology Center (TC), Federal University of Paraíba, João Pessoa, Paraíba, Brazil
| | - Josilene de Assis Cavalcante
- Laboratory of Bioengineering, Technology Center (TC), Federal University of Paraíba, João Pessoa, Paraíba, Brazil
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2
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Kwon HJ, Shiu JH, Yamakawa CK, Rivera EC. Enhancing Fermentation Process Monitoring through Data-Driven Modeling and Synthetic Time Series Generation. Bioengineering (Basel) 2024; 11:803. [PMID: 39199761 PMCID: PMC11351132 DOI: 10.3390/bioengineering11080803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 08/02/2024] [Accepted: 08/05/2024] [Indexed: 09/01/2024] Open
Abstract
Soft sensors based on deep learning regression models are promising approaches to predict real-time fermentation process quality measurements. However, experimental datasets are generally sparse and may contain outliers or corrupted data. This leads to insufficient model prediction performance. Therefore, datasets with a fully distributed solution space are required that enable effective exploration during model training. In this study, the robustness and predictive capability of the underlying model of a soft sensor was improved by generating synthetic datasets for training. The monitoring of intensified ethanol fermentation is used as a case study. Variational autoencoders were employed to create synthetic datasets, which were then combined with original datasets (experimental) to train neural network regression models. These models were tested on original versus augmented datasets to assess prediction improvements. Using the augmented datasets, the soft sensor predictive capability improved by 34%, and variability was reduced by 82%, based on R2 scores. The proposed method offers significant time and cost savings for dataset generation for the deep learning modeling of ethanol fermentation and can be easily adapted to other fermentation processes. This work contributes to the advancement of soft sensor technology, providing practical solutions for enhancing reliability and robustness in large-scale production.
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Affiliation(s)
- Hyun J. Kwon
- School of Engineering, Andrews University, Berrien Springs, MI 49104, USA;
| | - Joseph H. Shiu
- Department of Computer Science, Andrews University, Berrien Springs, MI 49104, USA;
| | | | - Elmer C. Rivera
- School of Engineering, Andrews University, Berrien Springs, MI 49104, USA;
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3
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Repeated-Batch Ethanol Fermentation from Sweet Sorghum Stem Juice under a Very High Gravity Condition Using a Stirred Tank Bioreactor Coupled with a Column Bioreactor by Immobilized Saccharomyces cerevisiae. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9020159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The ethanol fermentation efficiency of sweet sorghum stem juice (SSJ) under a very high gravity (VHG) condition (250 g/L of sugar) was improved by immobilized Saccharomyces cerevisiae SSJKKU01, using a stirred tank bioreactor (STR) coupled with a column bioreactor (CR). Dried rattan pieces (as carriers for cell immobilization) at 50% of the working volume of the CR were suitable for use in a batch ethanol fermentation. The average ethanol concentration (PE) and ethanol productivity (QP) of repeated-batch fermentation in the CR for eight successive cycles were 109.85 g/L and 1.88 g/L⋅h, respectively. Then an STR coupled with a CR was applied for repeated-batch ethanol fermentation in two systems. System I was an STR (1.8 L working volume), and System II was an STR (1 L) coupled with a CR, referred to as a CR-F (0.8 L). Both systems were connected to a new CR, called CR-I, containing sterile dried rattan pieces at 50% of its working volume. Active yeast cells were inoculated only into the STR, and the medium circulation rate between bioreactors was 5.2 mL/min. The results showed that at least eight successive cycles could be operated with an average PE of 108.51 g/L for System I and 109.44 g/L for System II. The average QP and SC values of both systems were also similar, with values of 1.87 to 1.88 g/L⋅h and 93 to 94%, respectively. The morphology of the carriers with and without immobilized cells before and after the fermentation was investigated. The obtained results demonstrated that a repeated-batch fermentation by immobilized cells on rattan pieces, using an STR coupled with a CR, was successfully used to produce high levels of ethanol from SSJ under a VHG condition.
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4
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Veloso II, Rodrigues KC, Esperança MN, Batista G, Cruz AJ, Badino AC. A more accurate modeling for fed-batch ethanol fermentation with high cell density. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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5
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Lucaroni AC, Dresch AP, Fogolari O, Giehl A, Treichel H, Bender JP, Mibielli GM, Alves SL. Effects of Temperature and pH on Salt-Stressed Yeast Cultures in Non-Detoxified Coconut Hydrolysate. Ind Biotechnol (New Rochelle N Y) 2022. [DOI: 10.1089/ind.2021.0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ana C. Lucaroni
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Aline P. Dresch
- Laboratory of Solid Waste, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Odinei Fogolari
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
- Laboratory of Solid Waste, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Anderson Giehl
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Helen Treichel
- Laboratory of Microbiology and Bioprocesses, Federal University of Fronteira Sul, Erechim, RS, Brazil
| | - João P. Bender
- Laboratory of Solid Waste, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | | | - Sérgio L. Alves
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
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6
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Santos MV, Rodrigues KCS, Veloso IIK, Badino AC, Cruz AJG. Real-Time Monitoring of Ethanol Fermentation Using Mid-Infrared Spectroscopy Analysis of the Gas Phase. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mayara V. Santos
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, 13565-905 São Paulo, Brazil
| | - Kaio C. S. Rodrigues
- Federal University of Western Bahia, Luís Eduardo Magalhães, 47850-000 Bahia, Brazil
| | - Ivan I. K. Veloso
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, 13565-905 São Paulo, Brazil
| | - Alberto C. Badino
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, 13565-905 São Paulo, Brazil
| | - Antonio J. G. Cruz
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, 13565-905 São Paulo, Brazil
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7
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Veloso IIK, Rodrigues KCS, Batista G, Cruz AJG, Badino AC. Mathematical Modeling of Fed-Batch Ethanol Fermentation Under Very High Gravity and High Cell Density at Different Temperatures. Appl Biochem Biotechnol 2022; 194:2632-2649. [PMID: 35235136 DOI: 10.1007/s12010-022-03868-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 02/24/2022] [Indexed: 11/28/2022]
Abstract
The use of more appropriate kinetic models can assist in improving ethanol fermentation under conditions of very high gravity (VHG) and high cell density (HCD), in order to obtain higher amounts of ethanol in the broth combined with high productivity. The aim of this study was to model fed-batch ethanol fermentation under VHG/HCD conditions, at different temperatures, considering three types of inhibition (substrate, ethanol, and cells). Fermentations were carried out using different temperatures (28 ≤ [Formula: see text] (°C) ≤ 34), inoculum sizes (50 ≤ [Formula: see text] (g L-1) ≤ 125), and substrate concentrations in the must (258 ≤ [Formula: see text] (g L-1) ≤ 436). In the proposed model, the cell inhibition power parameter varied with the temperature and inoculum size, while the cell yield coefficient varied with inoculum size and substrate concentration in the must. Hence, it was possible to propose correlations for the cell inhibition power parameter ([Formula: see text]) and for the cell yield coefficient ([Formula: see text]), as functions of the fermentation conditions. Simulations of fed-batch ethanol fermentations at different temperatures, under VHG/HCD conditions, were performed using the proposed correlations. Experimental validation showed that the model was able to accurately predict the dynamic behavior of the fermentations in terms of the concentrations of viable cells, total cells, ethanol, and substrate.
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Affiliation(s)
- Ivan I K Veloso
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, SP, 13565-905, Brazil
| | - Kaio C S Rodrigues
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, SP, 13565-905, Brazil
| | - Gustavo Batista
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, SP, 13565-905, Brazil
| | - Antonio J G Cruz
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, SP, 13565-905, Brazil
| | - Alberto C Badino
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos, SP, 13565-905, Brazil.
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Yuan J, Huang H, Chatterjee SG, Wang Z, Wang S. Effective factors for the performance of a co-generation system for bioethanol and electricity production via microbial fuel cell technology. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Mesquita TJ, Campani G, Giordano RC, Ribeiro MP, Horta AC, Zangirolami TC, Lima FV. Operability and biomimetic control of a micro-aerated fermentation process. Comput Chem Eng 2021. [DOI: 10.1016/j.compchemeng.2021.107511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Martinez-Jimenez F, de Arruda Ribeiro MP, Sargo CR, Ienczak JL, Morais ER, da Costa AC. Dynamic Modeling Application To Evaluate the Performance of Spathaspora passalidarum in Second-Generation Ethanol Production: Parametric Dynamics and the Likelihood Confidence Region. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Fernan Martinez-Jimenez
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, São Paulo 13083-852, Brazil
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
| | | | - Cintia Regina Sargo
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
| | - Jaciane Lutz Ienczak
- Chemical Engineering and Food Engineering Department, Santa Catarina Federal University, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Edvaldo Rodrigo Morais
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
| | - Aline Carvalho da Costa
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, São Paulo 13083-852, Brazil
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11
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Facilitating the industrial transition to microbial and microalgal factories through mechanistic modelling within the Industry 4.0 paradigm. Curr Opin Chem Eng 2021. [DOI: 10.1016/j.coche.2021.100713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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12
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Mesquita TJB, Campani G, Giordano RC, Zangirolami TC, Horta ACL. Machine learning applied for metabolic flux-based control of micro-aerated fermentations in bioreactors. Biotechnol Bioeng 2021; 118:2076-2091. [PMID: 33615444 DOI: 10.1002/bit.27721] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/11/2021] [Accepted: 02/18/2021] [Indexed: 12/22/2022]
Abstract
Various bio-based processes depend on controlled micro-aerobic conditions to achieve a satisfactory product yield. However, the limiting oxygen concentration varies according to the micro-organism employed, while for industrial applications, there is no cost-effective way of measuring it at low levels. This study proposes a machine learning procedure within a metabolic flux-based control strategy (SUPERSYS_MCU) to address this issue. The control strategy used simulations of a genome-scale metabolic model to generate a surrogate model in the form of an artificial neural network, to be used in a micro-aerobic fermentation strategy (MF-ANN). The meta-model provided setpoints to the controller, allowing adjustment of the inlet air flow to control the oxygen uptake rate. The strategy was evaluated in micro-aerobic batch cultures employing industrial Saccharomyces cerevisiae yeast, with defined medium and glucose as the carbon source, as a case study. The performance of the proposed control scheme was compared with a conventional fermentation and with three previously reported micro-aeration strategies, including respiratory quotient-based control and constant air flow rate. Due to maintenance of the oxidative balance at the anaerobiosis threshold, the MF-ANN provided volumetric ethanol productivity of 4.16 g·L-1 ·h-1 and a yield of 0.48 gethanol .gsubstrate -1 , which were higher than the values achieved for the other conditions studied (maximum of 3.4 g·L-1 ·h-1 and 0.35-0.40 gethanol ·gsubstrate -1 , respectively). Due to its modular character, the MF-ANN strategy could be adapted to other micro-aerated bioprocesses.
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Affiliation(s)
- Thiago J B Mesquita
- Graduate Program of Chemical Engineering, Federal University of São Carlos (PPGEQ-UFSCar), São Carlos, São Paulo, Brazil
| | - Gilson Campani
- Department of Engineering, Federal University of Lavras, Lavras, Minas Gerais, Brazil
| | - Roberto C Giordano
- Graduate Program of Chemical Engineering, Federal University of São Carlos (PPGEQ-UFSCar), São Carlos, São Paulo, Brazil
| | - Teresa C Zangirolami
- Graduate Program of Chemical Engineering, Federal University of São Carlos (PPGEQ-UFSCar), São Carlos, São Paulo, Brazil
| | - Antonio C L Horta
- Graduate Program of Chemical Engineering, Federal University of São Carlos (PPGEQ-UFSCar), São Carlos, São Paulo, Brazil
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13
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Mesquita TJB, Sandri JP, de Campos Giordano R, Horta ACL, Zangirolami TC. A High-Throughput Approach for Modeling and Simulation of Homofermentative Microorganisms Applied to Ethanol Fermentation by S. cerevisiae. Ind Biotechnol (New Rochelle N Y) 2021. [DOI: 10.1089/ind.2020.0034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
| | - Juliana Passamani Sandri
- Graduate Program of Chemical Engineering, Federal University of São Carlos, São Carlos, SP, Brazil
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14
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High Gravity and Very High Gravity Fermentation of Sugarcane Molasses by Flocculating Saccharomyces cerevisiae: Experimental Investigation and Kinetic Modeling. Appl Biochem Biotechnol 2020; 193:807-821. [PMID: 33196971 DOI: 10.1007/s12010-020-03466-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/09/2020] [Indexed: 10/23/2022]
Abstract
Substantial progress has been made in ethanol fermentation technology under high gravity (HG) and very high gravity (VHG), which offer environmental and economic benefits. HG and VHG processes increase the productivity of ethanol, reduce distillation costs, and enable higher yields. The aim of the present study was to evaluate the use of sugarcane molasses as the medium component along with flocculating yeasts for fermentation in a fed-batch process employing this promising technology. We evaluated fed-batch fermentation, HG, and VHG involving a molasses-based medium with high concentrations of reducing sugars (209, 222, and 250 g/L). Fermentation of 222 g/L of total reducing sugars achieved 89.45% efficiency, with a final ethanol concentration of 104.4 g/L, whereas the highest productivity (2.98 g/(L.h)) was achieved with the fermentation of 209 g/L of total reducing sugars. The ethanol concentration achieved with the fermentation of 222 g/L of total reducing sugars was close to the value obtained for P'max (105.35 g/L). The kinetic model provided a good fit to the experimental data regarding the fermentation of 222 g/L. The results revealed that sugarcane molasses and flocculating yeasts can be efficiently used in HG fermentation to reduce the costs of the process and achieve high ethanol titers.
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15
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Cruz ML, de Resende MM, Ribeiro EJ. Improvement of ethanol production in fed-batch fermentation using a mixture of sugarcane juice and molasse under very high-gravity conditions. Bioprocess Biosyst Eng 2020; 44:617-625. [PMID: 33131002 DOI: 10.1007/s00449-020-02462-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 10/11/2020] [Indexed: 12/14/2022]
Abstract
Ethanol fermentation in very high gravity (VHG) saves energy consumption for ethanol distillation. As the technology offers high ethanol yield and low waste generation and it can be operated at low cost, it could be more efficient at an industrial scale than other ethanol production methods. This work studied ethanol production using a fed-batch bioreactor with a working volume of 1.5 L. The main objective of this research was evaluate the effects of temperature, sugar concentration, and cellular concentration using a Central Composite Design (CCD). Experimental conditions were selected using the surface response technique obtained from the CCD, and the results were validated to test the reproducibility. The following operating conditions were selected: temperature of 27.0 °C, sugar concentration 300.0 g/L, and cell concentration 15.0% (v/v). Under these conditions, after 30 h of fermentation the ethanol concentration, productivity and yield were 135.0 g/L, 4.42 g/(L·h) and 90.0%, respectively. All sugar was completely consumed.
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Affiliation(s)
- Mariana Lopes Cruz
- Faculty of Chemical Engineering, Federal University of Uberlândia, Av. João Naves de Ávila, 2121, , Campus Santa Mônica - Bloco 1K, Uberlândia, MG, 38408-144, Brazil
| | - Miriam Maria de Resende
- Faculty of Chemical Engineering, Federal University of Uberlândia, Av. João Naves de Ávila, 2121, , Campus Santa Mônica - Bloco 1K, Uberlândia, MG, 38408-144, Brazil.
| | - Eloízio Júlio Ribeiro
- Faculty of Chemical Engineering, Federal University of Uberlândia, Av. João Naves de Ávila, 2121, , Campus Santa Mônica - Bloco 1K, Uberlândia, MG, 38408-144, Brazil
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16
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Veloso IIK, Rodrigues KCS, Ribeiro MPA, Cruz AJG, Badino AC. Temperature Influence in Real-Time Monitoring of Fed-Batch Ethanol Fermentation by Mid-Infrared Spectroscopy. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03717] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ivan I. K. Veloso
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos 13565-905, São Paulo, Brazil
| | - Kaio C. S. Rodrigues
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos 13565-905, São Paulo, Brazil
| | - Marcelo P. A. Ribeiro
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos 13565-905, São Paulo, Brazil
| | - Antonio J. G. Cruz
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos 13565-905, São Paulo, Brazil
| | - Alberto C. Badino
- Graduate Program of Chemical Engineering, Federal University of São Carlos, C.P. 676, São Carlos 13565-905, São Paulo, Brazil
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17
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Brandão ACT, de Resende MM, Ribeiro EJ. Alcoholic fermentation with high sugar and cell concentration at moderate temperatures using flocculant yeasts. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0589-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Biazi L, Martínez-Jimenez F, Bonan C, Soares L, Morais E, Ienczak J, Costa A. A differential evolution approach to estimate parameters in a temperature-dependent kinetic model for second generation ethanol production under high cell density with Spathaspora passalidarum. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107586] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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19
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Lemos DA, Sonego JLS, Cruz AJG, Badino AC. Improvement of ethanol production by extractive fed-batch fermentation in a drop column bioreactor. Bioprocess Biosyst Eng 2020; 43:2295-2303. [PMID: 32743720 DOI: 10.1007/s00449-020-02414-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 07/21/2020] [Indexed: 11/24/2022]
Abstract
The use of fed-batch extractive fermentation can overcome inhibitory effects caused by the substrate and ethanol to the yeast cells, since it allows regulate the substrate concentration and remove the product as it is produced. The present study describes the modelling and experimental validation of ethanol production in fed-batch extractive fermentation with in situ ethanol removal by oleic acid in a non-conventional drop column bioreactor (DCB) operated under industrial conditions. The model developed using the hybrid Andrews-Levenspiel equation and ethanol distribution coefficient parameter (KDE) provided an excellent description of the fed-batch extractive ethanol fermentation process with oleic acid. Furthermore, extractive fed-batch fermentation allowed the feed up to 306.6 kg m-3 of substrate (total reducing sugars), with total ethanol concentration in extractive fermentation in the ranging 100.3-139.8 kg m-3 (12.7-17.7 ºGL), 19.9-67.2% higher when compared with the conventional process without ethanol removal. Moreover, this process has the advantage of less effluent generated and energy consumption for ethanol recovery when compared to the conventional process.
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Affiliation(s)
- Diego A Lemos
- Chemical Engineering Graduate Program, Federal University of São Carlos, Rod. Washington Luís, km 235, São Carlos, SP, 13565-905, Brazil
| | - Jorge L S Sonego
- Chemical Engineering Graduate Program, Federal University of São Carlos, Rod. Washington Luís, km 235, São Carlos, SP, 13565-905, Brazil
| | - Antonio J G Cruz
- Chemical Engineering Graduate Program, Federal University of São Carlos, Rod. Washington Luís, km 235, São Carlos, SP, 13565-905, Brazil
| | - Alberto C Badino
- Chemical Engineering Graduate Program, Federal University of São Carlos, Rod. Washington Luís, km 235, São Carlos, SP, 13565-905, Brazil.
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Vieira RC, De Farias Silva CE, da Silva LOM, Almeida RMRG, de Oliveira Carvalho F, dos Santos Silva MC. Kinetic modelling of ethanolic fermented tomato must (Lycopersicon esculentum Mill) in batch system: influence of sugar content in the chaptalization step and inoculum concentration. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01810-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Nosrati‐Ghods N, Harrison STL, Isafiade AJ, Leng Tai S. Mathematical Modelling of Bioethanol Fermentation From Glucose, Xylose or Their Combination – A Review. CHEMBIOENG REVIEWS 2020. [DOI: 10.1002/cben.201900024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nosaibeh Nosrati‐Ghods
- University of Cape TownDepartment of Chemical Engineering, Faculty of Engineering and the Built Environment Private Bag X3 7701 Rondebosch South Africa
| | - Susan T. L. Harrison
- University of Cape TownDepartment of Chemical Engineering, Faculty of Engineering and the Built Environment Private Bag X3 7701 Rondebosch South Africa
| | - Adeniyi J. Isafiade
- University of Cape TownDepartment of Chemical Engineering, Faculty of Engineering and the Built Environment Private Bag X3 7701 Rondebosch South Africa
| | - Siew Leng Tai
- University of Cape TownDepartment of Chemical Engineering, Faculty of Engineering and the Built Environment Private Bag X3 7701 Rondebosch South Africa
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Eliodório KP, Cunha GCDGE, Müller C, Lucaroni AC, Giudici R, Walker GM, Alves SL, Basso TO. Advances in yeast alcoholic fermentations for the production of bioethanol, beer and wine. ADVANCES IN APPLIED MICROBIOLOGY 2019; 109:61-119. [PMID: 31677647 DOI: 10.1016/bs.aambs.2019.10.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Yeasts have a long-standing relationship with humankind that has widened in recent years to encompass production of diverse foods, beverages, fuels and medicines. Here, key advances in the field of yeast fermentation applied to alcohol production, which represents the predominant product of industrial biotechnology, will be presented. More specifically, we have selected industries focused in producing bioethanol, beer and wine. In these bioprocesses, yeasts from the genus Saccharomyces are still the main players, with Saccharomyces cerevisiae recognized as the preeminent industrial ethanologen. However, the growing demand for new products has opened the door to diverse yeasts, including non-Saccharomyces strains. Furthermore, the development of synthetic media that successfully simulate industrial fermentation medium will be discussed along with a general overview of yeast fermentation modeling.
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Affiliation(s)
| | | | - Caroline Müller
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Ana Carolina Lucaroni
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Reinaldo Giudici
- Department of Chemical Engineering, University of São Paulo, São Paulo, SP, Brazil
| | | | - Sérgio Luiz Alves
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Thiago Olitta Basso
- Department of Chemical Engineering, University of São Paulo, São Paulo, SP, Brazil.
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23
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Study of influence of yeast cells treatment on sugarcane ethanol fermentation: Operating conditions and kinetics. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.03.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Castro-Alayo EM, Idrogo-Vásquez G, Siche R, Cardenas-Toro FP. Formation of aromatic compounds precursors during fermentation of Criollo and Forastero cocoa. Heliyon 2019; 5:e01157. [PMID: 30775565 PMCID: PMC6356086 DOI: 10.1016/j.heliyon.2019.e01157] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/05/2018] [Accepted: 01/21/2019] [Indexed: 11/26/2022] Open
Abstract
There are three main genetic varieties of cocoa (Theobroma cacao L) used in chocolate making: Forastero, Trinitario and Criollo, which are distinguished by their aroma, an attribute that determines their quality. Criollo cocoa is of the highest quality and is used in the manufacture of fine chocolates because of its fruity aroma. The aroma of Criollo cocoa is defined by volatile compounds such as pyrazines and aldehydes, which are formed during roasting of the bean, from aroma precursors (reducing sugars and free amino acids) that are generated inside the bean via enzymatic reactions during fermentation; for this reason, fermentation is the most important process in the value chain. This review discusses the production of aroma precursors of Criollo and Forastero cocoa by studying the kinetics of spontaneous fermentation and the role of starter cultures to produce aroma precursors. Fine aroma precursors produced in the pulp during the fermentation phase will migrate into the bean when it's permeability is improved and then retained during the drying phase. Diffusion of aroma precursors into the cocoa bean may be possible, this process is mathematically characterized by the coefficient of molecular diffusion D, which describe the process of mass transfer via Fick's Second Law. The current state of knowledge is analyzed based on existing research and reports some gaps in the literature, suggesting future research that will be necessary for a better understanding of cocoa fermentation.
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Affiliation(s)
- Efraín M. Castro-Alayo
- Institute of Research, Innovation and Development for the Agricultural and Agroindustrial Sector of the Amazonas Region (IIDAA - Amazonas), Faculty of Engineering and Agricultural Sciences, Toribio Rodríguez de Mendoza National University of Amazonas, Higos Urco Street 342-350-356, Chachapoyas, Amazonas, Peru
- Section of Industrial Engineering, Department of Engineering, Pontifical Catholic University of Peru, Av. Universitaria 1801, San Miguel, Lima 32, Peru
| | - Guillermo Idrogo-Vásquez
- Institute of Research, Innovation and Development for the Agricultural and Agroindustrial Sector of the Amazonas Region (IIDAA - Amazonas), Faculty of Engineering and Agricultural Sciences, Toribio Rodríguez de Mendoza National University of Amazonas, Higos Urco Street 342-350-356, Chachapoyas, Amazonas, Peru
| | - Raúl Siche
- Institute of Research and Development, National University of Trujillo, Av. Juan Pablo II s/n, University City, Trujillo, Peru
| | - Fiorella P. Cardenas-Toro
- Section of Industrial Engineering, Department of Engineering, Pontifical Catholic University of Peru, Av. Universitaria 1801, San Miguel, Lima 32, Peru
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25
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Veloso II, Rodrigues KC, Sonego JL, Cruz AJ, Badino AC. Fed-batch ethanol fermentation at low temperature as a way to obtain highly concentrated alcoholic wines: Modeling and optimization. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2018.10.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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27
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Nosratpour MJ, Karimi K, Sadeghi M. Improvement of ethanol and biogas production from sugarcane bagasse using sodium alkaline pretreatments. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 226:329-339. [PMID: 30125812 DOI: 10.1016/j.jenvman.2018.08.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/13/2018] [Accepted: 08/13/2018] [Indexed: 06/08/2023]
Abstract
Sugarcane bagasse was pretreated with sodium carbonate, sodium sulfite, and sodium acetate in concentrations of 0.5 M and 0.25 M, as well as hydrothermal pretreatment, to break down its structural recalcitrance and improve biogas and ethanol production. The pretreatments were conducted at 100, 140, and 180 °C for 1 h. The highest biogas and ethanol production was observed for sugarcane bagasse pretreated with 0.5 M sodium carbonate solution at 140 °C, which was 239 ± 20 Nml CH4/g VS, and 7.27 ± 0.70 g/l, respectively, containing gasoline equivalents of 164.2 ± 14.3 l/ton of raw bagasse and 147.8 ± 14.2 l/ton of raw bagasse, respectively. The highest gasoline equivalent was obtained for biogas production from the substrate pretreated with 0.5 M sodium sulfite solution at 100 °C (190.2 ± 2.1 l/ton of raw bagasse). In comparison to sodium carbonate and sodium sulfite, sodium acetate had less effect on biofuel production and was comparable with hydrothermal pretreatment. In contradiction to sodium acetate pretreated bagasse, in which increased pretreatment temperature intensified biofuel production, a reduction of biofuel production was observed for sodium carbonate and sodium sulfite pretreatment when temperature was increased from 140 to 180 °C. Besides considerable amounts of biofuel production at the best conditions obtained, over 762 and 543 kilotons of equivalent CO2 can be reduced annually in Iran by biogas and ethanol production from sugarcane, respectively.
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Affiliation(s)
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Morteza Sadeghi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
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28
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Kłosowski G, Mikulski D. Complementarity of the raw material composition of Very High Gravity (VHG) mashes as a method to improve efficiency of the alcoholic fermentation process. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.08.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Jiang FC, Zhang HN, Wu D, Feng N, Zhang Z, Zhang JS, Feng J, Yang Y. Kinetic models for the effect of temperature on flavonoid production in liquid submerged fermentation byPhellinus baumii. Biotechnol Appl Biochem 2018; 65:739-747. [DOI: 10.1002/bab.1658] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 03/16/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Fu-Chun Jiang
- Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai People's Republic of China
- Shanghai Ocean University; Shanghai People's Republic of China
| | - He-Nan Zhang
- Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai People's Republic of China
- Key Laboratory of Edible Fungi Resources and Utilization (South); Ministry of Agriculture; Shanghai People's Republic of China
| | - Di Wu
- Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai People's Republic of China
- Key Laboratory of Edible Fungi Resources and Utilization (South); Ministry of Agriculture; Shanghai People's Republic of China
| | - Na Feng
- Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai People's Republic of China
- Key Laboratory of Edible Fungi Resources and Utilization (South); Ministry of Agriculture; Shanghai People's Republic of China
| | - Zhong Zhang
- Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai People's Republic of China
- Key Laboratory of Edible Fungi Resources and Utilization (South); Ministry of Agriculture; Shanghai People's Republic of China
| | - Jing-Song Zhang
- Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai People's Republic of China
- Key Laboratory of Edible Fungi Resources and Utilization (South); Ministry of Agriculture; Shanghai People's Republic of China
| | - Jie Feng
- Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai People's Republic of China
- Key Laboratory of Edible Fungi Resources and Utilization (South); Ministry of Agriculture; Shanghai People's Republic of China
| | - Yan Yang
- Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai People's Republic of China
- Key Laboratory of Edible Fungi Resources and Utilization (South); Ministry of Agriculture; Shanghai People's Republic of China
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30
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Cruz ML, Resende MMD, Ribeiro EJ. Evaluation of process conditions in the performance of yeast on alcoholic fermentation. CHEM ENG COMMUN 2018. [DOI: 10.1080/00986445.2017.1423061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Mariana Lopes Cruz
- Faculty of Chemical Engineering, Uberlândia Federal University, Uberlândia, Minas Gerais, Brazil
| | - Miriam Maria de Resende
- Faculty of Chemical Engineering, Uberlândia Federal University, Uberlândia, Minas Gerais, Brazil
| | - Eloízio Júlio Ribeiro
- Faculty of Chemical Engineering, Uberlândia Federal University, Uberlândia, Minas Gerais, Brazil
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