1
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Guerrero-Chanivet M, Guillén-Sánchez DA, Valcárcel-Muñoz MJ, García-Moreno MV, Anjos O. FT-Raman Methodology Applied to Study the Effect of Time and Type of Seasoning in the Crafting of Sherry Casks® Used in the Aging of Brandy De Jerez. SENSORS (BASEL, SWITZERLAND) 2023; 23:8962. [PMID: 37960664 PMCID: PMC10649297 DOI: 10.3390/s23218962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023]
Abstract
Brandy de Jerez is a grape-derived spirit produced in Southern Spain with specific characteristics that come from the casks where it is produced, which must have previously contained some type of Sherry wine for at least 12 months. These casks are known as Sherry Cask®. In this work, Brandies de Jerez aged for different aging times (0, 3, 6 and 12 months) in casks seasoned with three different types of Sherry wines (Fino, Oloroso and Amontillado) have been studied. The samples have been analyzed using FT-Raman spectroscopy, and their chemical characterization has also been realized by studying their total content of organic acid, volatile compounds, and phenolic and furanic compounds. Their chemical study showed that the main differences between the studied samples were due to the duration and the type of seasoning performed. However, the spectra obtained through FT-Raman presented noticeable differences according to cask seasoning time and the Sherry wine used for the process. A PCA (Principal Component Analysis) confirmed that the Brandies de Jerez presented significant differences depending on the seasoning time and type that the casks were subjected to. A PLS-R (Partial Least Squares Regression) study enabled establishing a close correlation between specific regions of the FT-Raman spectra and cask seasoning time.
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Affiliation(s)
- María Guerrero-Chanivet
- Departamento de Química Analítica, Facultad de Ciencias, Instituto de Investigación Vitivinícola y Agroalimentaria (IVAGRO), Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Spain; (M.G.-C.); (D.A.G.-S.)
- Bodegas Fundador S.L.U., C/San Ildefonso, n 3, 11403 Jerez de la Frontera, Spain;
| | - Dominico A. Guillén-Sánchez
- Departamento de Química Analítica, Facultad de Ciencias, Instituto de Investigación Vitivinícola y Agroalimentaria (IVAGRO), Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Spain; (M.G.-C.); (D.A.G.-S.)
| | | | - M. Valme García-Moreno
- Departamento de Química Analítica, Facultad de Ciencias, Instituto de Investigación Vitivinícola y Agroalimentaria (IVAGRO), Campus Universitario de Puerto Real, Universidad de Cádiz, 11510 Puerto Real, Spain; (M.G.-C.); (D.A.G.-S.)
| | - Ofelia Anjos
- CERNAS-IPCB, Research Centre for Natural Resources, Environment and Society, Polytechnic Institute of Castelo Branco, 6001-909 Castelo Branco, Portugal
- Centro de Biotecnología de Plantas da Beira Interior, 6001-909 Castelo Branco, Portugal
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2
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Yin Z, Zheng R, Li L, Xi S, Luan Z, Sun C, Zhang X. In situ Raman quantitative monitoring of methanogenesis: Culture experiments of a deep-sea cold seep methanogenic archaeon. Front Microbiol 2023; 14:1128064. [PMID: 37089553 PMCID: PMC10115991 DOI: 10.3389/fmicb.2023.1128064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/20/2023] [Indexed: 04/08/2023] Open
Abstract
Gas production from several metabolic pathways is a necessary process that accompanies the growth and central metabolism of some microorganisms. However, accurate and rapid nondestructive detection of gas production is still challenging. To this end, gas chromatography (GC) is primarily used, which requires sampling and sample preparation. Furthermore, GC is expensive and difficult to operate. Several researchers working on microbial gases are looking forward to a new method to accurately capture the gas trends within a closed system in real-time. In this study, we developed a precise quantitative analysis for headspace gas in Hungate tubes using Raman spectroscopy. This method requires only a controlled focus on the gas portion inside Hungate tubes, enabling nondestructive, real-time, continuous monitoring without the need for sampling. The peak area ratio was selected to establish a calibration curve with nine different CH4–N2 gaseous mixtures and a linear relationship was observed between the peak area ratio of methane to nitrogen and their molar ratios (A(CH4)/A(N2) = 6.0739 × n(CH4)/n(N2)). The results of in situ quantitative analysis using Raman spectroscopy showed good agreement with those of GC in the continuous monitoring of culture experiments of a deep-sea cold seep methanogenic archaeon. This method significantly improves the detection efficiency and shows great potential for in situ quantitative gas detection in microbiology. It can be a powerful complementary tool to GC.
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Affiliation(s)
- Ziyu Yin
- CAS Key Laboratory of Marine Geology and Environment and CAS Key Laboratory of Experimental Marine Biology and Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology and Laboratory for Marine Biology and Biotechnology, Pilot Laboratory for Marine Science and Technology, Qingdao, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Rikuan Zheng
- CAS Key Laboratory of Marine Geology and Environment and CAS Key Laboratory of Experimental Marine Biology and Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology and Laboratory for Marine Biology and Biotechnology, Pilot Laboratory for Marine Science and Technology, Qingdao, China
| | - Lianfu Li
- CAS Key Laboratory of Marine Geology and Environment and CAS Key Laboratory of Experimental Marine Biology and Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology and Laboratory for Marine Biology and Biotechnology, Pilot Laboratory for Marine Science and Technology, Qingdao, China
| | - Shichuan Xi
- CAS Key Laboratory of Marine Geology and Environment and CAS Key Laboratory of Experimental Marine Biology and Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology and Laboratory for Marine Biology and Biotechnology, Pilot Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhendong Luan
- CAS Key Laboratory of Marine Geology and Environment and CAS Key Laboratory of Experimental Marine Biology and Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology and Laboratory for Marine Biology and Biotechnology, Pilot Laboratory for Marine Science and Technology, Qingdao, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Chaomin Sun
- CAS Key Laboratory of Marine Geology and Environment and CAS Key Laboratory of Experimental Marine Biology and Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology and Laboratory for Marine Biology and Biotechnology, Pilot Laboratory for Marine Science and Technology, Qingdao, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xin Zhang
- CAS Key Laboratory of Marine Geology and Environment and CAS Key Laboratory of Experimental Marine Biology and Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology and Laboratory for Marine Biology and Biotechnology, Pilot Laboratory for Marine Science and Technology, Qingdao, China
- University of Chinese Academy of Sciences, Beijing, China
- *Correspondence: Xin Zhang,
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3
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Cario A, Larzillière M, Nguyen O, Alain K, Marre S. High-Pressure Microfluidics for Ultra-Fast Microbial Phenotyping. Front Microbiol 2022; 13:866681. [PMID: 35677901 PMCID: PMC9168469 DOI: 10.3389/fmicb.2022.866681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/27/2022] [Indexed: 01/09/2023] Open
Abstract
Here, we present a novel methodology based on high-pressure microfluidics to rapidly perform temperature-based phenotyping of microbial strains from deep-sea environments. The main advantage concerns the multiple on-chip temperature conditions that can be achieved in a single experiment at pressures representative of the deep-sea, overcoming the conventional limitations of large-scale batch metal reactors to conduct fast screening investigations. We monitored the growth of the model strain Thermococcus barophilus over 40 temperature and pressure conditions, without any decompression, in only 1 week, whereas it takes weeks or months with conventional approaches. The results are later compared with data from the literature. An additional example is also shown for a hydrogenotrophic methanogen strain (Methanothermococcus thermolithotrophicus), demonstrating the robustness of the methodology. These microfluidic tools can be used in laboratories to accelerate characterizations of new isolated species, changing the widely accepted paradigm that high-pressure microbiology experiments are time-consuming.
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Affiliation(s)
- Anaïs Cario
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, Pessac, France
- *Correspondence: Anaïs Cario,
| | - Marina Larzillière
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, Pessac, France
- CNRS, Univ. Brest, Ifremer, IRP 1211 MicrobSea, Unité de Biologie et Ecologie des Ecosystèmes Marins Profonds BEEP, IUEM, Plouzané, France
| | - Olivier Nguyen
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, Pessac, France
| | - Karine Alain
- CNRS, Univ. Brest, Ifremer, IRP 1211 MicrobSea, Unité de Biologie et Ecologie des Ecosystèmes Marins Profonds BEEP, IUEM, Plouzané, France
| | - Samuel Marre
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, Pessac, France
- Samuel Marre,
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4
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Cario A, Oliver GC, Rogers KL. Characterizing the Piezosphere: The Effects of Decompression on Microbial Growth Dynamics. Front Microbiol 2022; 13:867340. [PMID: 35663870 PMCID: PMC9157427 DOI: 10.3389/fmicb.2022.867340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/20/2022] [Indexed: 12/04/2022] Open
Abstract
The extent to which the full diversity of the subsurface microbiome can be captured via cultivation is likely hindered by the inevitable loss of cellular viability from decompression during sampling, enrichment, and isolation. Furthermore, the pressure tolerance of previously isolated strains that span surface and subsurface ecosystems can shed light into microbial activity and pressure adaptation in these transition zones. However, assessments of the effects of elevated pressure on the physiology of piezotolerant and piezosensitive species may be biased by high-pressure enrichment techniques. Here, we compared two high-pressure cultivation techniques-one that requires decompression of the whole cultures during sampling and one that employs the previously described isobaric PUSH devices-to explore the effects of repeated decompression during incubations performed to characterize isolates from deep environments. Two model sulfate-reducing prokaryotes were used to test the effects of decompression/repressurization cycles on growth rates, cell yields, and pressure tolerance. The mesophilic bacterium Desulfovibrio salexigens was cultivated from 0.1 to 50 MPa, and the hyperthermophilic archaeon Archaeoglobus fulgidus was tested from 0.1 to 98 MPa. For both cultivation methods, D. salexigens showed exponential growth up to 20 MPa, but faster growth rates were observed for isobaric cultivation. Furthermore, at 30 MPa minor growth was observed in D. salexigens cultures only for isobaric conditions. Isobaric conditions also extended exponential growth of A. fulgidus to 60 MPa, compared to 50 MPa when cultures were decompressed during subsampling. For both strains, growth rates and cell yields decreased with increasing pressures, and the most pronounced effects of decompression were observed at the higher end of the pressure ranges. These results highlight that repeated decompression can have a significant negative impact on cell viability, suggesting that decompression tolerance may depend on habitat depth. Furthermore, sampling, enrichment, and cultivation in isobaric devices is critical not only to explore the portion of the deep biosphere that is sensitive to decompression, but also to better characterize the pressure limits and growth characteristics of piezotolerant and piezosensitive species that span surface and subsurface ecosystems.
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Affiliation(s)
- Anaïs Cario
- Department of Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Gina C. Oliver
- Department of Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Karyn L. Rogers
- Department of Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY, United States
- Rensselaer Astrobiology Research and Education Center, Rensselaer Polytechnic Institute, Troy, NY, United States
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5
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Berrones-Guerrero JD, Frausto-Reyes C, De la Torre-I MH, Ortiz-Morales M, M López-T J. Impact on the Raman spectra of liquids when a polarized light source is used. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 272:121001. [PMID: 35158137 DOI: 10.1016/j.saa.2022.121001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
The polarization state of the excitation light used in two Raman systems was controlled to study its effect in the unpolarized Raman spectra of unstructured samples. Both systems work in different regions of the electromagnetic spectrum (NIR and visible). Four polarization states (linear, linear at 45° and 90°, and circular) were used to excite liquid samples (ethanol, acetone, and their mixture). The results show that the Raman peaks intensities' ratio varies according to the polarization state of the excitation light. Peaks related to functional groups and C-H stretching modes increase their intensity when circular polarization (CP) is applied. The latter may help to study liquid mixtures with low concentrations. Different polarizing light states give a more detailed spectroscopic analysis since it gathers more structural information of the samples tested in this work with an undefined structure.
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Affiliation(s)
- J D Berrones-Guerrero
- Centro de Investigaciones en Óptica, A.C., Unidad Aguascalientes, Prol. Constitución 607, Fracc. Reserva Loma Bonita Aguascalientes 20200, Mexico.
| | - C Frausto-Reyes
- Centro de Investigaciones en Óptica, A.C., Unidad Aguascalientes, Prol. Constitución 607, Fracc. Reserva Loma Bonita Aguascalientes 20200, Mexico.
| | - Manuel H De la Torre-I
- Centro de Investigaciones en Óptica, A.C., Unidad Aguascalientes, Prol. Constitución 607, Fracc. Reserva Loma Bonita Aguascalientes 20200, Mexico
| | - M Ortiz-Morales
- Centro de Investigaciones en Óptica, A.C., Unidad Aguascalientes, Prol. Constitución 607, Fracc. Reserva Loma Bonita Aguascalientes 20200, Mexico
| | - Juan M López-T
- Centro de Investigaciones en Óptica, A.C., Unidad Aguascalientes, Prol. Constitución 607, Fracc. Reserva Loma Bonita Aguascalientes 20200, Mexico
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6
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Magdas D, David M, Berghian-Grosan C. Fruit spirits fingerprint pointed out through artificial intelligence and FT-Raman spectroscopy. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108630] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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7
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Santos LO, Silva PGP, Lemos Junior WJF, de Oliveira VS, Anschau A. Glutathione production by Saccharomyces cerevisiae: current state and perspectives. Appl Microbiol Biotechnol 2022; 106:1879-1894. [PMID: 35182192 DOI: 10.1007/s00253-022-11826-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 12/29/2022]
Abstract
Glutathione (L-γ-glutamyl-cysteinyl-glycine, GSH) is a tripeptide synthesized through consecutive enzymatic reactions. Among its several metabolic functions in cells, the main one is the potential to act as an endogenous antioxidant agent. GSH has been the focus of numerous studies not only due to its role in the redox status of biological systems but also due to its biotechnological characteristics. GSH is usually obtained by fermentation and shows a variety of applications by the pharmaceutical and food industry. Therefore, the search for new strategies to improve the production of GSH during fermentation is crucial. This mini review brings together recent papers regarding the principal parameters of the biotechnological production of GSH by Saccharomyces cerevisiae. In this context, aspects, such as the medium composition (amino acids, alternative raw materials) and the use of technological approaches (control of osmotic and pressure conditions, magnetic field (MF) application, fed-batch process) were considered, along with genetic engineering knowledge, trends, and challenges in viable GSH production. KEY POINTS: • Saccharomyces cerevisiae has shown potential for glutathione production. • Improved technological approaches increases glutathione production. • Genetic engineering in Saccharomyces cerevisiae improves glutathione production.
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Affiliation(s)
- Lucielen Oliveira Santos
- Laboratory of Biotechnology, School of Chemistry and Food, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
| | - Pedro Garcia Pereira Silva
- Laboratory of Biotechnology, School of Chemistry and Food, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | | | - Vanessa Sales de Oliveira
- Department of Food Technology, Institute of Technology, University Federal Rural of Rio de Janeiro, Seropédica, RJ, 23890-000, Brazil
| | - Andréia Anschau
- Department of Bioprocess Engineering and Biotechnology, Federal University of Technology, Dois Vizinhos, PR, 85660-000, Brazil
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8
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Basso F, Manzocco L, Nicoli MC. Hyperbaric Storage of Food: Applications, Challenges, and Perspectives. FOOD ENGINEERING REVIEWS 2021. [DOI: 10.1007/s12393-021-09296-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Abstract
Raman spectroscopy is a very powerful tool for material analysis, allowing for exploring the properties of a wide range of different materials. Since its discovery, Raman spectroscopy has been used to investigate several features of materials such carbonaceous and inorganic properties, providing useful information on their phases, functions, and defects. Furthermore, techniques such as surface and tip enhanced Raman spectroscopy have extended the field of application of Raman analysis to biological and analytical fields. Additionally, the robustness and versatility of Raman instrumentations represent a promising solution for performing on-field analysis for a wide range of materials. Recognizing the many hot applications of Raman spectroscopy, we herein overview the main and more recent applications for the investigation of a wide range of materials, such as carbonaceous and biological materials. We also provide a brief but exhaustive theoretical background of Raman spectroscopy, also providing deep insight into the analytical achievements.
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10
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Dhankhar D, Nagpal A, Rentzepis PM. Cell-phone camera Raman spectrometer. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:054101. [PMID: 34243331 DOI: 10.1063/5.0046281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/17/2021] [Indexed: 06/13/2023]
Abstract
In this report, we describe the design, construction, and operation of a cell-phone-based Raman and emission spectral detector, which when coupled to a diffraction grating and cell-phone camera system provides means for the detection, recording, and identification of chemicals, drugs, and biological molecules, in situ by means of their Raman and fluorescence spectra. The newly constructed cell-phone spectrometer system was used to record Raman spectra from various chemicals and biological molecules including the resonance enhanced Raman spectra of carrots and bacteria. In addition, we present the quantitative analysis of alcohol-water Raman spectra, performed using our cell-phone spectrometer. The designed and constructed system was also used for constructing Raman images of the samples by utilizing a position scanning stage in conjunction with the system. This compact and portable system is well suited for in situ field applications of Raman and fluorescence spectroscopy and may also be an integrated feature of future cell-phones.
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Affiliation(s)
- Dinesh Dhankhar
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, USA
| | - Anushka Nagpal
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, USA
| | - Peter M Rentzepis
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, USA
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11
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Osman JR, Cardon H, Montagnac G, Picard A, Daniel I. Pressure effects on sulfur-oxidizing activity of Thiobacillus thioparus. ENVIRONMENTAL MICROBIOLOGY REPORTS 2021; 13:169-175. [PMID: 33421329 PMCID: PMC7986089 DOI: 10.1111/1758-2229.12922] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Carbon capture and storage technologies are crucial for reducing carbon emission from power plants as a response to global climate change. The CarbFix project (Iceland) aims at examining the geochemical response of injected CO2 into subsurface reservoirs. The potential role of the subsurface biosphere has been little investigated up to now. Here, we used Thiobacillus thioparus that became abundant at the CarbFix1 pilot site after injection of CO2 and purified geothermal gases in basaltic aquifer at 400-800 m depth (4-8 MPa). The capacity of T. thioparus to produce sulfate, through oxidation of thiosulfate, was measured by Raman spectroscopy as a function of pressure up to 10 MPa. The results show that the growth and metabolic activity of T. thioparus are influenced by the initial concentration of the electron donor thiosulfate. It grows best at low initial concentration of thiosulfate (here 5 g.l-1 or 31.6 mM) and best oxidizes thiosulfate into sulfate at 0.1 MPa with a yield of 14.7 ± 0.5%. Sulfur oxidation stops at 4.3 ± 0.1 MPa (43 bar). This autotrophic specie can thereby react to CO2 and H2 S injection down to 430 m depth and may contribute to induced biogeochemical cycles during subsurface energy operations.
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Affiliation(s)
- Jorge R. Osman
- Univ Lyon, Université Lyon 1, Ens de Lyon, CNRS, UMR 5276 LGL‐TPEVilleurbanneF‐69622France
| | - Hervé Cardon
- Univ Lyon, Université Lyon 1, Ens de Lyon, CNRS, UMR 5276 LGL‐TPEVilleurbanneF‐69622France
| | - Gilles Montagnac
- Univ Lyon, Université Lyon 1, Ens de Lyon, CNRS, UMR 5276 LGL‐TPEVilleurbanneF‐69622France
| | - Aude Picard
- Univ Lyon, Université Lyon 1, Ens de Lyon, CNRS, UMR 5276 LGL‐TPEVilleurbanneF‐69622France
- School of Life SciencesUniversity of Nevada, Las Vegas, 4505 S. Maryland ParkwayLas VegasNV89154‐4004USA
| | - Isabelle Daniel
- Univ Lyon, Université Lyon 1, Ens de Lyon, CNRS, UMR 5276 LGL‐TPEVilleurbanneF‐69622France
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12
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Application of Raman spectroscopy and Machine Learning algorithms for fruit distillates discrimination. Sci Rep 2020; 10:21152. [PMID: 33273608 PMCID: PMC7713252 DOI: 10.1038/s41598-020-78159-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 11/18/2020] [Indexed: 11/09/2022] Open
Abstract
Through this pilot study, the association between Raman spectroscopy and Machine Learning algorithms were used for the first time with the purpose of distillates differentiation with respect to trademark, geographical and botanical origin. Two spectral Raman ranges (region I—200–600 cm−1 and region II—1200–1400 cm−1) appeared to have the higher discrimination potential for the investigated distillates. The proposed approach proved to be a very effective one for trademark fingerprint differentiation, a model accuracy of 95.5% being obtained (only one sample was misclassified). A comparable model accuracy (90.9%) was achieved for the geographical discrimination of the fruit spirits which can be considered as a very good one taking into account that this classification was made inside Transylvania region, among neighbouring areas. Because the trademark fingerprint is the prevailing one, the successfully distillate type differentiation, with respect to the fruit variety, was possible to be made only inside of each producing entity.
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13
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Flame structure of supercritical ethanol/water combustion in a co-flow air stream characterized by Raman chemical analysis. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104995] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Shi S, Zhang Y, Ahn J, Qin D. Revitalizing silver nanocrystals as a redox catalyst by modifying their surface with an isocyanide-based compound. Chem Sci 2020; 11:11214-11223. [PMID: 34094362 PMCID: PMC8162456 DOI: 10.1039/d0sc04385k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 09/16/2020] [Indexed: 11/21/2022] Open
Abstract
Silver is an excellent catalyst for oxidation reactions such as ethylene epoxidation, but it shows limited activity toward reduction reactions. Here we report a strategy to revitalize Ag nanocrystals as a redox catalyst for the production of an aromatic azo compound by modifying their surface with an isocyanide-based compound. We also leverage in situ fingerprint spectroscopy to acquire molecular insights into the reaction mechanism by probing the vibrational modes of all chemical species at the catalytic surface with surface-enhanced Raman spectroscopy. We establish that binding of isocyanide to Ag nanocrystals makes it possible for Ag to extract the oxygen atoms from the nitro-groups of nitroaromatics and then use these atoms to oxidize isocyanide to isocyanate. Concurrently, the coupling between two adjacent deoxygenated nitroaromatic molecules leads to the formation of an aromatic azo compound.
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Affiliation(s)
- Shi Shi
- School of Materials Science and Engineering, Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Yadong Zhang
- School of Chemistry and Biochemistry, Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Jaewan Ahn
- School of Materials Science and Engineering, Georgia Institute of Technology Atlanta Georgia 30332 USA
| | - Dong Qin
- School of Materials Science and Engineering, Georgia Institute of Technology Atlanta Georgia 30332 USA
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15
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Towards smart biomanufacturing: a perspective on recent developments in industrial measurement and monitoring technologies for bio-based production processes. J Ind Microbiol Biotechnol 2020; 47:947-964. [PMID: 32895764 PMCID: PMC7695667 DOI: 10.1007/s10295-020-02308-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/31/2020] [Indexed: 12/22/2022]
Abstract
The biomanufacturing industry has now the opportunity to upgrade its production processes to be in harmony with the latest industrial revolution. Technology creates capabilities that enable smart manufacturing while still complying with unfolding regulations. However, many biomanufacturing companies, especially in the biopharma sector, still have a long way to go to fully benefit from smart manufacturing as they first need to transition their current operations to an information-driven future. One of the most significant obstacles towards the implementation of smart biomanufacturing is the collection of large sets of relevant data. Therefore, in this work, we both summarize the advances that have been made to date with regards to the monitoring and control of bioprocesses, and highlight some of the key technologies that have the potential to contribute to gathering big data. Empowering the current biomanufacturing industry to transition to Industry 4.0 operations allows for improved productivity through information-driven automation, not only by developing infrastructure, but also by introducing more advanced monitoring and control strategies.
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16
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The Combined Effect of Pressure and Temperature on Kefir Production-A Case Study of Food Fermentation in Unconventional Conditions. Foods 2020; 9:foods9081133. [PMID: 32824663 PMCID: PMC7466173 DOI: 10.3390/foods9081133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 11/16/2022] Open
Abstract
Food fermentation under pressure has been studied in recent years as a way to produce foods with novel properties. The purpose of this work was to study kefir production under pressure (7–50 MPa) at different temperatures (17–32 °C), as a case study of unconventional food fermentation. The fermentation time to produce kefir was similar at all temperatures (17, 25, and 32 °C) up to 15 MPa, compared to atmospheric pressure. At 50 MPa, the fermentation rate was slower, but the difference was reduced as temperature increased. During fermentation, lactic and acetic acid concentration increased while citric acid decreased. The positive activation volumes (Va) obtained indicate that pressure decreased the fermentation rate, while the temperature rise led to the attenuation of the pressure effect (lower Va). On the other hand, higher activation energies (Ea) were observed with pressure increase, indicating that fermentation became more sensitive to temperature. The condition that resulted in a faster fermentation, higher titratable acidity, and higher concentration of lactic acid was 15 MPa/32 °C. As the authors are aware, this is the second work in the literature to study the combined effect of pressure and temperature on a fermentative process.
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Mota MJ, Lopes RP, Pinto CA, Sousa S, Gomes AM, Delgadillo I, Saraiva JA. The use of different fermentative approaches on Paracoccus denitrificans: Effect of high pressure and air availability on growth and metabolism. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Arreola AR, Tizapa MS, Zurita F, Morán-Lázaro JP, Valderrama RC, Rodríguez-López JL, Carreon-Alvarez A. Treatment of tequila vinasse and elimination of phenol by coagulation-flocculation process coupled with heterogeneous photocatalysis using titanium dioxide nanoparticles. ENVIRONMENTAL TECHNOLOGY 2020; 41:1023-1033. [PMID: 30173604 DOI: 10.1080/09593330.2018.1518994] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 08/28/2018] [Indexed: 05/21/2023]
Abstract
In this research, we are reporting the treatment of tequila vinasse by a coagulation-flocculation process coupled with heterogeneous photocatalysis using two types of titanium dioxide nanoparticles, i.e. (1) commercial nanoparticles, and (2) nanoparticles synthesized by sol-gel. The efficiency in the elimination of phenol, which is one of the most harmful contaminants in tequila vinasse, was also included in the evaluation of the treatment process. The synthesized titanium dioxide nanoparticles were annealed in air at 400°C for 1 h and were characterized by X-ray diffraction, transmission electron microscopy, ultraviolet-visible and Raman spectroscopy. Anatase phase was observed in both samples, with a crystallite size of 22.5 and 9.8 nm for commercial and synthesized nanoparticles respectively. Tequila vinasse was characterized before and after the treatments by measuring physicochemical parameters such as pH, chemical oxygen demand (COD), colour, total suspended solids (TSS), as well as using ultraviolet-visible spectroscopy and Raman spectroscopy to identify the presence of organic compounds, and gas chromatography (GC) for phenol quantification. Raw vinasse was treated initially by coagulation-flocculation producing clarified vinasse, which in turn was treated by photocatalysis for 3 h using hydrogen peroxide as oxidizing agent. The use of synthesized titanium dioxide nanoparticles allowed the highest efficiencies, reaching reductions of 99.4%, 86.0%, and 70.0% for TSS, colour, and COD respectively. GC results showed the reduction of phenol concentrations in 89.7% with our synthesized nanoparticles in contrast to 82.7% reduction, with commercial titanium dioxide nanoparticles.
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Affiliation(s)
- Alicia Rodriguez Arreola
- Departamento de Ciencias Exactas y Naturales, Centro Universitario de los Valles, Universidad de Guadalajara, Ameca, Jalisco, México
| | - Marciano Sanchez Tizapa
- Departamento de Ciencias Exactas y Naturales, Centro Universitario de los Valles, Universidad de Guadalajara, Ameca, Jalisco, México
| | - Florentina Zurita
- Departamento de Ciencias Tecnológicas, Centro Universitario de la Ciénega, Universidad de Guadalajara, Ocotlán, Jalisco, México
| | - Juan Pablo Morán-Lázaro
- Departamento de Ciencias Exactas y Naturales, Centro Universitario de los Valles, Universidad de Guadalajara, Ameca, Jalisco, México
| | - Rocío Castañeda Valderrama
- Departamento de Ciencias Exactas y Naturales, Centro Universitario de los Valles, Universidad de Guadalajara, Ameca, Jalisco, México
| | - José Luis Rodríguez-López
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A.C (IPICyT), San Luis, S. L. P, México
| | - Alejandra Carreon-Alvarez
- Departamento de Ciencias Exactas y Naturales, Centro Universitario de los Valles, Universidad de Guadalajara, Ameca, Jalisco, México
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Anjos O, Santos R, Estevinho LM, Caldeira I. FT-RAMAN methodology for the monitoring of honeys' spirit distillation process. Food Chem 2020; 305:125511. [PMID: 31610421 DOI: 10.1016/j.foodchem.2019.125511] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 09/07/2019] [Accepted: 09/09/2019] [Indexed: 10/26/2022]
Abstract
Honey spirit is an alcoholic beverage produced by fermentation followed by distillation of the honey must, which has distinct organoleptic characteristics derived mostly from the raw material used. In order to accurately monitor the quality of the product throughout the distillation process (head, heart and tail stages), FT-RAMAN spectroscopy was applied. Dark honey, light honey and honey obtained following waxes' wash was used to produce honey spirit. The pH, alcoholic strength, methanol content, acetaldehyde content, ethyl acetate content and higher alcohols content were evaluated during the distillation process. The FT-RAMAN technique was used to obtain spectral information for all fractions collected during beverage production. The results suggest that the honey spirit had good quality concerning the volatile composition and methanol was not detected in any sample. FT-RAMAN is promising for the online monitoring of the distillation process in order to improve the final quality of this beverage.
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Affiliation(s)
- Ofélia Anjos
- Instituto Politécnico de Castelo Branco, 6001-909 Castelo Branco, Portugal; Centro de Biotecnologia de Plantas da Beira Interior, 6001-909 Castelo Branco, Portugal; CEF, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Regina Santos
- Instituto Politécnico de Castelo Branco, 6001-909 Castelo Branco, Portugal
| | - Letícia M Estevinho
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, 5300-252 Bragança, Portugal; Department of Biology and Biotechnology, Agricultural College of Bragança, Polytechnic Institute of Bragança, Campus Santa Apolónia, 5300-253 Bragança, Portugal
| | - Ilda Caldeira
- INIAV, INIAV-Dois Portos, Quinta da Almoínha, 2565-191 Dois Portos, Portugal; ICAAM - Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Instituto de Investigação e Formação Avançada, Universidade de Évora, Núcleo da Mitra, 7000 Évora, Portugal
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Lopes RP, Mota MJ, Sousa S, Gomes AM, Delgadillo I, Saraiva JA. Combined effect of pressure and temperature for yogurt production. Food Res Int 2019; 122:222-229. [PMID: 31229075 DOI: 10.1016/j.foodres.2019.04.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 04/04/2019] [Accepted: 04/06/2019] [Indexed: 12/16/2022]
Abstract
Fermentation under non-conventional conditions has gained prominence in the last years, due to the possible process improvements. Fermentation under sub-lethal pressures is one of such cases, and may bring novel characteristics and features to fermentative processes and products. In this work, the effect of both pressure (10-100 MPa) and temperature (25-50 °C) on yogurt production fermentation kinetics was studied, as a case-study. Product formation and substrate consumption were evaluated over fermentation time and the profiles were highly dependent on the fermentation conditions used. For instance, the increase of pressure slowed down yogurt fermentation, but fermentative profiles similar to atmospheric pressure (0.1 MPa) were obtained at 10 MPa at almost all temperatures tested. Regarding temperature, higher fermentative rates were achieved at 43 °C for all pressures tested. Moreover, the inhibitory effect of pressure increased when temperature decreased, with complete inhibition of fermentation occurring at 50 MPa for 25-35 °C, contrasting to 43 °C where inhibition occurred only at 100 MPa. Therefore, an antagonistic effect seems to occur, since yogurt fermentation was slowed down by pressure increasing, on one hand, and by temperature decreasing, on the other hand. Additionally, some kinetic parameters were calculated and fermentation at 43 °C presented the best results for yogurt production, with lower fermentation times and higher lactic acid productivities. Interestingly, fermentation at 10 MPa/43 °C presented the optimal conditions, with improved yield and lactic acid production efficiency, when compared to fermentation at 0.1 MPa (efficiency of 75% at 10 MPa, against 40% at 0.1 MPa). As the authors are aware, this work gives the first insights about the simultaneous effect of pressure and temperature variation on a microbial fermentation process, which can be combined to modulate the metabolic activity of microorganisms during fermentation in order to improve the fermentative yields and productivities of the desired product.
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Affiliation(s)
- Rita P Lopes
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Maria J Mota
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sérgio Sousa
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Ana M Gomes
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Ivonne Delgadillo
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Jorge A Saraiva
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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Hirsch E, Pataki H, Domján J, Farkas A, Vass P, Fehér C, Barta Z, Nagy ZK, Marosi GJ, Csontos I. Inline noninvasive Raman monitoring and feedback control of glucose concentration during ethanol fermentation. Biotechnol Prog 2019; 35:e2848. [DOI: 10.1002/btpr.2848] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Edit Hirsch
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics Budapest Hungary
| | - Hajnalka Pataki
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics Budapest Hungary
| | - Júlia Domján
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics Budapest Hungary
| | - Attila Farkas
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics Budapest Hungary
| | - Panna Vass
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics Budapest Hungary
| | - Csaba Fehér
- Department of Applied Biotechnology and Food ScienceBudapest University of Technology and Economics Budapest Hungary
| | - Zsolt Barta
- Department of Applied Biotechnology and Food ScienceBudapest University of Technology and Economics Budapest Hungary
- Viresol Ltd. Visonta Hungary
| | - Zsombor K. Nagy
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics Budapest Hungary
| | - György J. Marosi
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics Budapest Hungary
| | - István Csontos
- Department of Organic Chemistry and TechnologyBudapest University of Technology and Economics Budapest Hungary
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Comparison of Raman and Mid-Infrared Spectroscopy for Real-Time Monitoring of Yeast Fermentations: A Proof-of-Concept for Multi-Channel Photometric Sensors. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9122472] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Raman and mid-infrared (MIR) spectroscopy are useful tools for the specific detection of molecules, since both methods are based on the excitation of fundamental vibration modes. In this study, Raman and MIR spectroscopy were applied simultaneously during aerobic yeast fermentations of Saccharomyces cerevisiae. Based on the recorded Raman intensities and MIR absorption spectra, respectively, temporal concentration courses of glucose, ethanol, and biomass were determined. The chemometric methods used to evaluate the analyte concentrations were partial least squares (PLS) regression and multiple linear regression (MLR). In view of potential photometric sensors, MLR models based on two (2D) and four (4D) analyte-specific optical channels were developed. All chemometric models were tested to predict glucose concentrations between 0 and 30 g L−1, ethanol concentrations between 0 and 10 g L−1, and biomass concentrations up to 15 g L−1 in real time during diauxic growth. Root-mean-squared errors of prediction (RMSEP) of 0.68 g L−1, 0.48 g L−1, and 0.37 g L−1 for glucose, ethanol, and biomass were achieved using the MIR setup combined with a PLS model. In the case of Raman spectroscopy, the corresponding RMSEP values were 0.92 g L−1, 0.39 g L−1, and 0.29 g L−1. Nevertheless, the simple 4D MLR models could reach the performance of the more complex PLS evaluation. Consequently, the replacement of spectrometer setups by four-channel sensors were discussed. Moreover, the advantages and disadvantages of Raman and MIR setups are demonstrated with regard to process implementation.
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Fernandes PA, Moreira SA, Santos MD, Duarte RV, Santos DI, Inácio RS, Alves SP, Bessa RJ, Delgadillo I, Saraiva JA. Hyperbaric storage at variable room temperature - a new preservation methodology for minced meat compared to refrigeration. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:3276-3282. [PMID: 30552771 DOI: 10.1002/jsfa.9540] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 12/11/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
Hyperbaric storage (HS) at variable room temperature (RT) has been proposed as an alternative to refrigeration at atmospheric pressure (RF/AP) for food preservation. Little information is available regarding the effect of HS in meat products. In this study the RT/HS effect was evaluated at 100 MPa and variable RT (≈20 °C) for minced meat preservation up to 24 h, initially for one batch. A further two different batches were studied independently. Microbiological and physicochemical parameters were analyzed to assess the feasibility of RT/HS, using storage at RF/AP and variable RT/AP (≈20 °C), for comparison. A post-hyperbaric storage (post-HS) was also tested over 4 days at RF/AP. For the first batch the results showed that RT/HS allowed a decrease of the total aerobic mesophile value (P < 0.05) when compared to the initial sample, whereas at RF/AP and RT/AP, values increased to > 6 Log CFU g-1 after 24 h. Similarly, Enterobacteriaceae increased > 1 and > 2 Log CFU g-1 at RF/AP and RT/AP, respectively, while yeasts and molds presented similar and lower overall loads compared to the initial samples for all storage conditions, whereas RT/HS always allowed lower counts to be obtained. Regarding pH, lipid oxidation, and color parameters, RT/HS did not cause significant changes when compared to RF/AP, except after 24 h, where pH increased. The three batches presented similar results, the differences observed being mainly due to the heterogeneity of the samples. RT/HS is a potential quasi-energetic costless alternative to RF for at least short-term preservation of minced meat. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Pedro Ar Fernandes
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Sílvia A Moreira
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Mauro D Santos
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Ricardo V Duarte
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Diana I Santos
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Rita S Inácio
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Susana P Alves
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Pólo Universitário do Alto da Ajuda, Lisbon, Portugal
| | - Rui Jb Bessa
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Pólo Universitário do Alto da Ajuda, Lisbon, Portugal
| | - Ivonne Delgadillo
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Jorge A Saraiva
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
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Mota MJ, Lopes RP, Simões MMQ, Delgadillo I, Saraiva JA. Effect of High Pressure on Paracoccus denitrificans Growth and Polyhydroxyalkanoates Production from Glycerol. Appl Biochem Biotechnol 2019; 188:810-823. [DOI: 10.1007/s12010-018-02949-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 12/26/2018] [Indexed: 02/04/2023]
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25
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Physicochemical and microbial changes in yogurts produced under different pressure and temperature conditions. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.09.074] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Utilization of glycerol during consecutive cycles of Lactobacillus reuteri fermentation under pressure: The impact on cell growth and fermentation profile. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.08.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Ferreira RM, Mota MJ, Lopes RP, Sousa S, Gomes AM, Delgadillo I, Saraiva JA. Adaptation of Saccharomyces cerevisiae to high pressure (15, 25 and 35 MPa) to enhance the production of bioethanol. Food Res Int 2018; 115:352-359. [PMID: 30599952 DOI: 10.1016/j.foodres.2018.11.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 10/28/2018] [Accepted: 11/14/2018] [Indexed: 01/21/2023]
Abstract
Saccharomyces cerevisiae is a yeast of great importance in many industries and it has been frequently used to produce food products and beverages. More recently, other uses have also been described for this microorganism, such as the production of bioethanol, as a clean, renewable and sustainable alternative fuel. High pressure processing (HPP) is a technology that has attracted a lot of interest and is increasingly being used in the food industry as a non-thermal method of food processing. However, other applications of high pressure (HP) are being studied with this technology in different areas, for example, for fermentation processes, because microbial cells can resist to pressure sub-lethal levels, due to the development of different adaptation mechanisms. The present work intended to study the adaptation of S. cerevisiae to high pressure, using consecutive cycles of fermentation under pressure (at sub-lethal levels), in an attempt to enhance the production of bioethanol. In this context, three pressure levels (15, 25 and 35 MPa) were tested, with each of them showing different effects on S. cerevisiae fermentation behavior. After each cycle at 15 and 25 MPa, both cell growth and ethanol production showed a tendency to increase, suggesting the adaptation of S. cerevisiae to these pressure levels. In fact, at the end of the 4th cycle, the ethanol production was higher under pressure than at atmospheric pressure (0.1 MPa) (8.75 g.L-1 and 10.69 g.L-1 at 15 and 25 MPa, respectively, compared to 8.02 g.L-1 at atmospheric pressure). However, when the pressure was increased to 35 MPa, cell growth and bioethanol production decreased, with minimal production after the 4 consecutive fermentation cycles. In general, the results of this work suggest that consecutive cycles of fermentation under sub-lethal pressure conditions (15 and 25 MPa) can stimulate adaptation to pressure and improve the bioethanol production capacity by S. cerevisiae; hence, this technology can be used to increase rates, yields and productivities of alcoholic fermentation.
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Affiliation(s)
- Ricardo M Ferreira
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Maria J Mota
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Rita P Lopes
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sérgio Sousa
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Ana M Gomes
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Ivonne Delgadillo
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Jorge A Saraiva
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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Influence of Incident Wavelength and Detector Material Selection on Fluorescence in the Application of Raman Spectroscopy to a Fungal Fermentation Process. Bioengineering (Basel) 2018; 5:bioengineering5040079. [PMID: 30257530 PMCID: PMC6315725 DOI: 10.3390/bioengineering5040079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 09/21/2018] [Indexed: 11/22/2022] Open
Abstract
Raman spectroscopy is a novel tool used in the on-line monitoring and control of bioprocesses, offering both quantitative and qualitative determination of key process variables through spectroscopic analysis. However, the wide-spread application of Raman spectroscopy analysers to industrial fermentation processes has been hindered by problems related to the high background fluorescence signal associated with the analysis of biological samples. To address this issue, we investigated the influence of fluorescence on the spectra collected from two Raman spectroscopic devices with different wavelengths and detectors in the analysis of the critical process parameters (CPPs) and critical quality attributes (CQAs) of a fungal fermentation process. The spectra collected using a Raman analyser with the shorter wavelength (903 nm) and a charged coupled device detector (CCD) was corrupted by high fluorescence and was therefore unusable in the prediction of these CPPs and CQAs. In contrast, the spectra collected using a Raman analyser with the longer wavelength (993 nm) and an indium gallium arsenide (InGaAs) detector was only moderately affected by fluorescence and enabled the generation of accurate estimates of the fermentation’s critical variables. This novel work is the first direct comparison of two different Raman spectroscopy probes on the same process highlighting the significant detrimental effect caused by high fluorescence on spectra recorded throughout fermentation runs. Furthermore, this paper demonstrates the importance of correctly selecting both the incident wavelength and detector material type of the Raman spectroscopy devices to ensure corrupting fluorescence is minimised during bioprocess monitoring applications.
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Mota MJ, Lopes RP, Sousa S, Gomes AM, Delgadillo I, Saraiva JA. Lactobacillus reuteri growth and fermentation under high pressure towards the production of 1,3-propanediol. Food Res Int 2018; 113:424-432. [PMID: 30195537 DOI: 10.1016/j.foodres.2018.07.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 07/10/2018] [Accepted: 07/26/2018] [Indexed: 01/28/2023]
Abstract
Lactobacillus reuteri is a lactic acid bacterium able to produce several relevant bio-based compounds, including 1,3-propanediol (1,3-PDO), a compound used in food industry for a wide range of purposes. The performance of fermentations under high pressure (HP) is a novel strategy for stimulation of microbial growth and possible improvement of fermentation processes. Therefore, the present work intended to evaluate the effects of HP (10-35 MPa) on L. reuteri growth and glycerol/glucose co-fermentation, particularly on 1,3-PDO production. Two different types of samples were used: with or without acetate added in the culture medium. The production of 1,3-PDO was stimulated at 10 MPa, resulting in enhanced final titers, yields and productivities, compared to 0.1 MPa. The highest 1,3-PDO titer (4.21 g L-1) was obtained in the presence of acetate at 10 MPa, representing yield and productivity improvements of ≈ 11 and 12%, respectively, relatively to the same samples at 0.1 MPa. In the absence of acetate, 1,3-PDO titer and productivity were similar to 0.1 MPa, but the yield increased ≈ 26%. High pressure also affected the formation of by-products (lactate, acetate and ethanol) and, as a consequence, higher molar ratios 1,3-PDO:by-products were achieved at 10 MPa, regardless of the presence/absence of acetate. This indicates a metabolic shift, with modification of product selectivity towards production of 1,3-PDO. Overall, this work suggests that HP can be a useful tool to improve of 1,3-PDO production from glycerol by L. reuteri, even if proper process optimization and scale-up are still needed to allow its industrial application. It also opens the possibility of using this technology to stimulate other glycerol fermentations processes that are relevant for food science and biotechnology.
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Affiliation(s)
- Maria J Mota
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Rita P Lopes
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sérgio Sousa
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Ana M Gomes
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Ivonne Delgadillo
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Jorge A Saraiva
- QOPNA, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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Influences of ethanol on the structure of toxic trans-crotonaldehyde in mitochondria coming from rat myocardium. Sci Rep 2017; 7:10081. [PMID: 28855539 PMCID: PMC5577290 DOI: 10.1038/s41598-017-09656-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 07/27/2017] [Indexed: 11/26/2022] Open
Abstract
Inappropriate use of ethanol (EtOH) had led to noticeable health problems, but a beneficial phenomenon was found that EtOH displayed unique influences for toxic trans-crotonaldehyde (TCA) derived from mitochondrial lipid peroxidation. The influences of EtOH on the structure of TCA were systematically probed by UV-vis & Raman spectroscopy in the absence and presence of mitochondria, respectively. The maximum UV-vis peak at 301 nm of TCA was red shifted by hydroxyl (-OH) and methyl (-CH3) of EtOH, respectively. Raman stretching band of aldehyde (-CH=O) of TCA (TCA-CH=O) was split by the -CH3 of EtOH. The -CH3 increased TCA-CH=O stretching frequency while the -OH induced it. The more exposed -OH, the less stretching frequency. The ectopic -CH3 red shifted the UV-vis peak at 301 nm and Raman band of TCA-CH=O. In mitochondria, EtOH red shifted Raman stretching band of TCA-CH=O. Raman stretching bands of C-H, C-O and C-C of EtOH were red shifted, while Raman stretching bands of -CH2 and C-C-O of EtOH disappeared. The paper unearths the influences of EtOH to trap and transform the structure of TCA-CH=O. This discovery has an important contribution to eliminate TCA in order to protect and repair mtDNA by means of the decrease of 8-oxoG.
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Non-contact Raman spectroscopy for in-line monitoring of glucose and ethanol during yeast fermentations. Bioprocess Biosyst Eng 2017; 40:1519-1527. [PMID: 28656375 DOI: 10.1007/s00449-017-1808-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 06/20/2017] [Indexed: 02/03/2023]
Abstract
The monitoring of microbiological processes using Raman spectroscopy has gained in importance over the past few years. Commercial Raman spectroscopic equipment consists of a laser, spectrometer, and fiberoptic immersion probe in direct contact with the fermentation medium. To avoid possible sterilization problems and biofilm formation on the probe tip, a large-aperture Raman probe was developed. The design of the probe enables non-contact in-line measurements through glass vessels or inspection glasses of bioreactors and chemical reactors. The practical applicability of the probe was tested during yeast fermentations by monitoring the consumption of substrate glucose and the formation of ethanol as the product. Multiple linear regression models were applied to evaluate the Raman spectra. Reference values were determined by high-performance liquid chromatography. The relative errors of prediction for glucose and ethanol were 5 and 3%, respectively. The presented Raman probe allows simple adaption to a wide range of processes in the chemical, pharmaceutical, and biotechnological industries.
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Schalk R, Geoerg D, Staubach J, Raedle M, Methner FJ, Beuermann T. Evaluation of a newly developed mid-infrared sensor for real-time monitoring of yeast fermentations. J Biosci Bioeng 2017; 123:651-657. [DOI: 10.1016/j.jbiosc.2016.12.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 12/07/2016] [Accepted: 12/08/2016] [Indexed: 11/16/2022]
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Mota MJ, Lopes RP, Koubaa M, Roohinejad S, Barba FJ, Delgadillo I, Saraiva JA. Fermentation at non-conventional conditions in food- and bio-sciences by the application of advanced processing technologies. Crit Rev Biotechnol 2017; 38:122-140. [PMID: 28423948 DOI: 10.1080/07388551.2017.1312272] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The interest in improving the yield and productivity values of relevant microbial fermentations is an increasingly important issue for the scientific community. Therefore, several strategies have been tested for the stimulation of microbial growth and manipulation of their metabolic behavior. One promising approach involves the performance of fermentative processes during non-conventional conditions, which includes high pressure (HP), electric fields (EF) and ultrasound (US). These advanced technologies are usually applied for microbial inactivation in the context of food processing. However, the approach described in this study focuses on the use of these technologies at sub-lethal levels, since the aim is microbial growth and fermentation under these stress conditions. During these sub-lethal conditions, microbial strains develop specific genetic, physiologic and metabolic stress responses, possibly leading to fermentation products and processes with novel characteristics. In some cases, these modifications can represent considerable improvements, such as increased yields, productivities and fermentation rates, lower accumulation of by-products and/or production of different compounds. Although several studies report the successful application of these technologies during the fermentation processes, information on this subject is still scarce and poorly understood. For that reason, the present review paper intends to assemble and discuss the main findings reported in the literature to date, and aims to stimulate interest and encourage further developments in this field.
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Affiliation(s)
- Maria J Mota
- a Chemistry Department, QOPNA , University of Aveiro, Campus Universitário de Santiago , Aveiro , Portugal
| | - Rita P Lopes
- a Chemistry Department, QOPNA , University of Aveiro, Campus Universitário de Santiago , Aveiro , Portugal
| | - Mohamed Koubaa
- b Sorbonne Universités , Université de Technologie de Compiègne, Laboratoire Transformations Intégrées de la Matière Renouvelable (UTC/ESCOM, EA 4297 TIMR), Centre de Recherche de Royallieu , Compiegne France
| | - Shahin Roohinejad
- c Department of Food Technology and Bioprocess Engineering , Max Rubner-Institut, Federal Research Institute of Nutrition and Food , Karlsruhe , Germany.,d Burn and Wound Healing Research Center, Division of Food and Nutrition , Shiraz University of Medical Sciences , Shiraz , Iran
| | - Francisco J Barba
- e Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Department, Faculty of Pharmacy , Universitat de València , València , Spain
| | - Ivonne Delgadillo
- a Chemistry Department, QOPNA , University of Aveiro, Campus Universitário de Santiago , Aveiro , Portugal
| | - Jorge A Saraiva
- a Chemistry Department, QOPNA , University of Aveiro, Campus Universitário de Santiago , Aveiro , Portugal
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Virtanen T, Reinikainen SP, Kögler M, Mänttäri M, Viitala T, Kallioinen M. Real-time fouling monitoring with Raman spectroscopy. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.12.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Claßen J, Aupert F, Reardon KF, Solle D, Scheper T. Spectroscopic sensors for in-line bioprocess monitoring in research and pharmaceutical industrial application. Anal Bioanal Chem 2016; 409:651-666. [PMID: 27900421 DOI: 10.1007/s00216-016-0068-x] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/20/2016] [Accepted: 10/27/2016] [Indexed: 01/27/2023]
Abstract
The use of spectroscopic sensors for bioprocess monitoring is a powerful tool within the process analytical technology (PAT) initiative of the US Food and Drug Administration. Spectroscopic sensors enable the simultaneous real-time bioprocess monitoring of various critical process parameters including biological, chemical, and physical variables during the entire biotechnological production process. This potential can be realized through the combination of spectroscopic measurements (UV/Vis spectroscopy, IR spectroscopy, fluorescence spectroscopy, and Raman spectroscopy) with multivariate data analysis to obtain relevant process information out of an enormous amount of data. This review summarizes the newest results from science and industry after the establishment of the PAT initiative and gives a critical overview of the most common in-line spectroscopic techniques. Examples are provided of the wide range of possible applications in upstream processing and downstream processing of spectroscopic sensors for real-time monitoring to optimize productivity and ensure product quality in the pharmaceutical industry.
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Affiliation(s)
- Jens Claßen
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstraße 5, 30167, Hannover, Germany
| | - Florian Aupert
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstraße 5, 30167, Hannover, Germany
| | - Kenneth F Reardon
- Department of Chemical Biological Engineering, Colorado State University, 344 Scott Bioengineering, Fort Collins, Colorado, 80523-1370, USA
| | - Dörte Solle
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstraße 5, 30167, Hannover, Germany.
| | - Thomas Scheper
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstraße 5, 30167, Hannover, Germany
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Junne S, Kabisch J. Fueling the future with biomass: Processes and pathways for a sustainable supply of hydrocarbon fuels and biogas. Eng Life Sci 2016; 17:14-26. [PMID: 32624725 DOI: 10.1002/elsc.201600112] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 08/08/2016] [Accepted: 08/23/2016] [Indexed: 12/11/2022] Open
Abstract
Global economic growth, wealth and security rely upon the availability of cheap, mostly fossil-derived energy and chemical compounds. The replacement by sustainable resources is widely discussed. However, the current state of biotechnological processes usually restricts them to be used as a true alternative in terms of economic feasibility and even sustainability. Among the rare examples of bioprocesses applied for the energetic use of biomass are biogas and bioethanol production. Usually, these processes lack in efficiency and they cannot be operated without the support of legislation. Although they represent a first step towards a greater share of bio-based processes for energy provision, there is no doubt that tremendous improvements in strain and process development, feedstock and process flexibility as well as in the integration of these processes into broader supply and production networks, in this review called smart bioproduction grids, are required to make them economically attractive, robust enough, and wider acceptance by society. All this requires an interdisciplinary approach, which includes the use of residues in closed carbon cycles and issues concerning the process safety. This short review aims to depict some of the promising strategies to achieve an improved process performance as a basis for future application.
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Affiliation(s)
- Stefan Junne
- Department of Biotechnology Chair of Bioprocess Engineering Technische Universität Berlin Berlin Germany
| | - Johannes Kabisch
- Institute of Biochemistry Ernst-Moritz-Arndt University Greifswald Greifswald Germany
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Esmonde-White KA, Cuellar M, Uerpmann C, Lenain B, Lewis IR. Raman spectroscopy as a process analytical technology for pharmaceutical manufacturing and bioprocessing. Anal Bioanal Chem 2016; 409:637-649. [PMID: 27491299 PMCID: PMC5233728 DOI: 10.1007/s00216-016-9824-1] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/13/2016] [Accepted: 07/21/2016] [Indexed: 11/30/2022]
Abstract
Adoption of Quality by Design (QbD) principles, regulatory support of QbD, process analytical technology (PAT), and continuous manufacturing are major factors effecting new approaches to pharmaceutical manufacturing and bioprocessing. In this review, we highlight new technology developments, data analysis models, and applications of Raman spectroscopy, which have expanded the scope of Raman spectroscopy as a process analytical technology. Emerging technologies such as transmission and enhanced reflection Raman, and new approaches to using available technologies, expand the scope of Raman spectroscopy in pharmaceutical manufacturing, and now Raman spectroscopy is successfully integrated into real-time release testing, continuous manufacturing, and statistical process control. Since the last major review of Raman as a pharmaceutical PAT in 2010, many new Raman applications in bioprocessing have emerged. Exciting reports of in situ Raman spectroscopy in bioprocesses complement a growing scientific field of biological and biomedical Raman spectroscopy. Raman spectroscopy has made a positive impact as a process analytical and control tool for pharmaceutical manufacturing and bioprocessing, with demonstrated scientific and financial benefits throughout a product’s lifecycle.
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Affiliation(s)
- Karen A Esmonde-White
- Kaiser Optical System, Inc, 371 Parkland Plaza, Ann Arbor, MI, 48103, USA.
- University of Michigan Medical School, Ann Arbor, MI, 48109-5624, USA.
| | - Maryann Cuellar
- Kaiser Optical System, Inc, 371 Parkland Plaza, Ann Arbor, MI, 48103, USA
| | - Carsten Uerpmann
- Kaiser Optical Systems SARL, 5 Allée Moulin Berger, 69130, Ecully, France
| | - Bruno Lenain
- Kaiser Optical Systems SARL, 5 Allée Moulin Berger, 69130, Ecully, France
| | - Ian R Lewis
- Kaiser Optical System, Inc, 371 Parkland Plaza, Ann Arbor, MI, 48103, USA
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Burgaud G, Hué NTM, Arzur D, Coton M, Perrier-Cornet JM, Jebbar M, Barbier G. Effects of hydrostatic pressure on yeasts isolated from deep-sea hydrothermal vents. Res Microbiol 2015; 166:700-9. [DOI: 10.1016/j.resmic.2015.07.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 07/10/2015] [Accepted: 07/16/2015] [Indexed: 02/07/2023]
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Luong TQ, Kapoor S, Winter R. Pressure-A Gateway to Fundamental Insights into Protein Solvation, Dynamics, and Function. Chemphyschem 2015; 16:3555-71. [DOI: 10.1002/cphc.201500669] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Indexed: 01/11/2023]
Affiliation(s)
- Trung Quan Luong
- Department of Chemistry and Chemical Biology, Physical Chemistry; TU Dortmund University, Dortmund; Otto-Hahn-Str. 6 d-44221 Dortmund Germany
| | - Shobhna Kapoor
- Department of Chemistry and Chemical Biology, Physical Chemistry; TU Dortmund University, Dortmund; Otto-Hahn-Str. 6 d-44221 Dortmund Germany
| | - Roland Winter
- Department of Chemistry and Chemical Biology, Physical Chemistry; TU Dortmund University, Dortmund; Otto-Hahn-Str. 6 d-44221 Dortmund Germany
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40
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Probiotic yogurt production under high pressure and the possible use of pressure as an on/off switch to stop/start fermentation. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.03.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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41
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Jabłoński S, Rodowicz P, Łukaszewicz M. Methanogenic archaea database containing physiological and biochemical characteristics. Int J Syst Evol Microbiol 2015; 65:1360-1368. [PMID: 25604335 DOI: 10.1099/ijs.0.000065] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The methanogenic archaea are a group of micro-organisms that have developed a unique metabolic pathway for obtaining energy. There are 150 characterized species in this group; however, novel species continue to be discovered. Since methanogens are considered a crucial part of the carbon cycle in the anaerobic ecosystem, characterization of these micro-organisms is important for understanding anaerobic ecology. A methanogens database (MDB; http://metanogen.biotech.uni.wroc.pl/), including physiological and biochemical characteristics of methanogens, was constructed based on the descriptions of isolated type strains. Analysis of the data revealed that methanogens are able to grow from 0 to 122 °C. Methanogens growing at the same temperature may have very different growth rates. There is no clear correlation between the optimal growth temperature and the DNA G+C content. The following substrate preferences are observed in the database: 74.5% of archaea species utilize H2+CO2, 33% utilize methyl compounds and 8.5% utilize acetate. Utilization of methyl compounds (mainly micro-organisms belonging to the genera Methanosarcina and Methanolobus ) is seldom accompanied by an ability to utilize H2+CO2. Very often, data for described species are incomplete, especially substrate preferences. Additional research leading to completion of missing information and development of standards, especially for substrate utilization, would be very helpful.
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Affiliation(s)
| | - Paweł Rodowicz
- Department of Information, Wrocław University of Technology, Wrocław, Poland.,Faculty of Biotechnology, University of Wrocław, Wrocław, Poland
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42
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Iversen JA, Ahring BK. Monitoring lignocellulosic bioethanol production processes using Raman spectroscopy. BIORESOURCE TECHNOLOGY 2014; 172:112-120. [PMID: 25255187 DOI: 10.1016/j.biortech.2014.08.068] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 08/14/2014] [Accepted: 08/16/2014] [Indexed: 06/03/2023]
Abstract
Process control automation in the emerging biorefinery industry may be achieved by applying effective methods for monitoring compound concentrations during the production processes. This study examines the application of Raman spectroscopy with an excitation wavelength of 785nm and an immersion probe for in situ monitoring the progression of pretreatment, hydrolysis and fermentation processes in the production of lignocellulosic ethanol. Raman signals were attenuated by light scattering cells and lignocellulosic particulates, which the quantification method to some degree could correct for by using an internal standard in the spectra. Allowing particulates to settle by using a slow stirring speed further improved results, suggesting that Raman spectroscopy should be used in combination with continuous separation when used to monitor process mixtures with large amounts of particulates. The root mean square error of prediction (RMSE) of ethanol and glucose measured in real-time was determined to be 0.98g/L and 1.91g/L respectively.
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Affiliation(s)
- Jens A Iversen
- Section for Sustainable Biotechnology, Aalborg University, A.C. Meyers Vænge 15, 2450 Copenhagen SV, Denmark; Center for Bioproducts and Bioenergy, Washington State University Tri-Cities, 2710 Crimson Way, Richland, WA 99354, USA
| | - Birgitte K Ahring
- Section for Sustainable Biotechnology, Aalborg University, A.C. Meyers Vænge 15, 2450 Copenhagen SV, Denmark; Center for Bioproducts and Bioenergy, Washington State University Tri-Cities, 2710 Crimson Way, Richland, WA 99354, USA.
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43
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Iversen JA, Berg RW, Ahring BK. Quantitative monitoring of yeast fermentation using Raman spectroscopy. Anal Bioanal Chem 2014; 406:4911-9. [DOI: 10.1007/s00216-014-7897-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 05/12/2014] [Accepted: 05/13/2014] [Indexed: 11/24/2022]
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Ewanick S, Schmitt E, Gustafson R, Bura R. Use of Raman spectroscopy for continuous monitoring and control of lignocellulosic biorefinery processes. PURE APPL CHEM 2014. [DOI: 10.1515/pac-2013-1022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe production of fuels and chemicals from lignocellulosic biomass demands efficient processes to compete with fossil fuel-derived products. Key biorefinery processes, such as enzymatic hydrolysis of cellulose and microbial fermentation, can be monitored by advanced sensors in real time, providing information about reactant and product concentration, contamination, and reaction progress. Spectroscopic techniques such as Raman spectroscopy provide a means of quickly and accurately assessing many types of reaction mixtures non-destructively, in real time, and with no costly sample preparation and analysis time. Raman spectroscopy techniques have been developed to accurately quantify a number of compounds present in lignocellulosic processes, and methods have been developed to overcome the presence of fluorescent compounds that can increase the spectral background. Online Raman sensors also can provide the feedback measurements necessary for advanced process controls (APCs). Specifically, model predictive control, a common APC used extensively throughout similar processing industries, is especially well suited for ensuring optimal production of bio-based chemicals from lignocellulosic material.
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Affiliation(s)
- Shannon Ewanick
- 1School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA
| | - Elliott Schmitt
- 1School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA
| | - Rick Gustafson
- 1School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA
| | - Renata Bura
- 1School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA
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Uysal RS, Soykut EA, Boyaci IH, Topcu A. Monitoring multiple components in vinegar fermentation using Raman spectroscopy. Food Chem 2013; 141:4333-43. [DOI: 10.1016/j.foodchem.2013.06.122] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 06/04/2013] [Accepted: 06/26/2013] [Indexed: 11/26/2022]
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Mota MJ, Lopes RP, Delgadillo I, Saraiva JA. Microorganisms under high pressure--adaptation, growth and biotechnological potential. Biotechnol Adv 2013; 31:1426-34. [PMID: 23831003 DOI: 10.1016/j.biotechadv.2013.06.007] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 06/21/2013] [Accepted: 06/24/2013] [Indexed: 11/16/2022]
Abstract
Hydrostatic pressure is a well-known physical parameter which is now considered an important variable of life, since organisms have the ability to adapt to pressure changes, by the development of resistance against this variable. In the past decades a huge interest in high hydrostatic pressure (HHP) technology is increasingly emerging among food and biosciences researchers. Microbial specific stress responses to HHP are currently being investigated, through the evaluation of pressure effects on biomolecules, cell structure, metabolic behavior, growth and viability. The knowledge development in this field allows a better comprehension of pressure resistance mechanisms acquired at sub-lethal pressures. In addition, new applications of HHP could arise from these studies, particularly in what concerns to biotechnology. For instance, the modulation of microbial metabolic pathways, as a response to different pressure conditions, may lead to the production of novel compounds with potential biotechnological and industrial applications. Considering pressure as an extreme life condition, this review intends to present the main findings so far reported in the scientific literature, focusing on microorganisms with the ability to withstand and to grow in high pressure conditions, whether they have innated or acquired resistance, and show the potential of the application of HHP technology for microbial biotechnology.
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Affiliation(s)
- Maria J Mota
- QOPNA, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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47
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Ewanick SM, Thompson WJ, Marquardt BJ, Bura R. Real-time understanding of lignocellulosic bioethanol fermentation by Raman spectroscopy. BIOTECHNOLOGY FOR BIOFUELS 2013; 6:28. [PMID: 23425590 PMCID: PMC3586367 DOI: 10.1186/1754-6834-6-28] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 02/04/2013] [Indexed: 05/16/2023]
Abstract
BACKGROUND A substantial barrier to commercialization of lignocellulosic ethanol production is a lack of process specific sensors and associated control strategies that are essential for economic viability. Current sensors and analytical techniques require lengthy offline analysis or are easily fouled in situ. Raman spectroscopy has the potential to continuously monitor fermentation reactants and products, maximizing efficiency and allowing for improved process control. RESULTS In this paper we show that glucose and ethanol in a lignocellulosic fermentation can be accurately monitored by a 785 nm Raman spectroscopy instrument and novel immersion probe, even in the presence of an elevated background thought to be caused by lignin-derived compounds. Chemometric techniques were used to reduce the background before generating calibration models for glucose and ethanol concentration. The models show very good correlation between the real-time Raman spectra and the offline HPLC validation. CONCLUSIONS Our results show that the changing ethanol and glucose concentrations during lignocellulosic fermentation processes can be monitored in real-time, allowing for optimization and control of large scale bioconversion processes.
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Affiliation(s)
- Shannon M Ewanick
- School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA
| | - Wesley J Thompson
- Applied Physics Laboratory, University of Washington, Seattle, WA, USA
| | - Brian J Marquardt
- Applied Physics Laboratory, University of Washington, Seattle, WA, USA
| | - Renata Bura
- School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA
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48
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Gray SR, Peretti SW, Lamb HH. Real-time monitoring of high-gravity corn mash fermentation using in situ raman spectroscopy. Biotechnol Bioeng 2013; 110:1654-62. [DOI: 10.1002/bit.24849] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 12/11/2012] [Accepted: 01/07/2013] [Indexed: 11/06/2022]
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49
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Brauchle E, Schenke-Layland K. Raman spectroscopy in biomedicine - non-invasive in vitro analysis of cells and extracellular matrix components in tissues. Biotechnol J 2012; 8:288-97. [PMID: 23161832 PMCID: PMC3644878 DOI: 10.1002/biot.201200163] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 10/17/2012] [Accepted: 10/17/2012] [Indexed: 12/12/2022]
Abstract
Raman spectroscopy is an established laser-based technology for the quality assurance of pharmaceutical products. Over the past few years, Raman spectroscopy has become a powerful diagnostic tool in the life sciences. Raman spectra allow assessment of the overall molecular constitution of biological samples, based on specific signals from proteins, nucleic acids, lipids, carbohydrates, and inorganic crystals. Measurements are non-invasive and do not require sample processing, making Raman spectroscopy a reliable and robust method with numerous applications in biomedicine. Moreover, Raman spectroscopy allows the highly sensitive discrimination of bacteria. Rama spectra retain information on continuous metabolic processes and kinetics such as lipid storage and recombinant protein production. Raman spectra are specific for each cell type and provide additional information on cell viability, differentiation status, and tumorigenicity. In tissues, Raman spectroscopy can detect major extracellular matrix components and their secondary structures. Furthermore, the non-invasive characterization of healthy and pathological tissues as well as quality control and process monitoring of in vitro-engineered matrix is possible. This review provides comprehensive insight to the current progress in expanding the applicability of Raman spectroscopy for the characterization of living cells and tissues, and serves as a good reference point for those starting in the field.
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Affiliation(s)
- Eva Brauchle
- Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB), Stuttgart, Germany
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50
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Ávila TC, Poppi RJ, Lunardi I, Tizei PAG, Pereira GAG. Raman spectroscopy and chemometrics foron-linecontrol of glucose fermentation bySaccharomyces cerevisiae. Biotechnol Prog 2012; 28:1598-604. [DOI: 10.1002/btpr.1615] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 08/03/2012] [Indexed: 11/06/2022]
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