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A Critical Evaluation of Recent Studies on Packed-Bed Bioreactors for Solid-State Fermentation. Processes (Basel) 2023. [DOI: 10.3390/pr11030872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
Packed-bed bioreactors are often used for aerobic solid-state fermentation, since the forced aeration supplies O2 and removes metabolic heat from the bed. Motivated by the potential for applications in biorefineries, we review studies conducted on packed-bed bioreactors over the last decade, evaluating the insights these studies provide into how large-scale packed beds should be designed and operated. Many studies have used low superficial air velocities and suffer from preferential airflow, such that parts of the bed are not properly aerated. Moreover, some studies have proposed ineffective strategies, such as reversing the direction of the airflow or introducing air through perforated pipes within the bed. Additionally, many studies have used narrow water-jacketed packed-bed bioreactors, but these bioreactors do not reflect heat removal in wide large-scale packed beds, in which heat removal through the side walls makes a minor contribution. Finally, we conclude that, although some attention has been given to characterizing the porosities, water sorption isotherms and volumetric heat and mass transfer coefficients of substrate beds, this work needs to be extended to cover a wider range of solid substrates, and work needs to be done to characterize how these bed properties change due to microbial growth.
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Ranjbar S, Hejazi P. Modeling and validating Pseudomonas aeruginosa kinetic parameters based on simultaneous effect of bed temperature and moisture content using lignocellulosic substrate in packed-bed bioreactor. FOOD AND BIOPRODUCTS PROCESSING 2019. [DOI: 10.1016/j.fbp.2019.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Das D, Bhat M R, Selvaraj R. Review of inulinase production using solid-state fermentation. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-1436-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Irfan M, Mushtaq Q, Tabssum F, Shakir HA, Qazi JI. Carboxymethyl cellulase production optimization from newly isolated thermophilic Bacillus subtilis K-18 for saccharification using response surface methodology. AMB Express 2017; 7:29. [PMID: 28138939 PMCID: PMC5302012 DOI: 10.1186/s13568-017-0331-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 01/20/2017] [Indexed: 11/10/2022] Open
Abstract
In this study, a novel thermophilic strain was isolated from soil and
used for cellulase production in submerged fermentation using potato peel as sole
carbon source. The bacterium was identified by 16S rRNA gene sequencing technology.
Central composite design was applied for enhanced production using substrate
concentration, inoculum size, yeast extract and pH as dependent variables. Highest
enzyme titer of 3.50 ± 0.11 IU/ml was obtained at 2% substrate concentration, 2%
inoculum size, 1% yeast extract, pH 5.0, incubation temperature of 50 °C for 24 h of
fermentation period. The crude enzyme was characterized having optimum pH and
temperature of 7.0 and 50 °C, respectively. The efficiency of enzyme was checked by
enzymatic hydrolysis of acid/alkali treated pine needles which revealed that 54.389%
saccharification was observed in acid treated pine needles. These results indicated
that the cellulase produced by the Bacillus
subtilis K-18 (KX881940) could be effectively used for industrial
processes particularly for bioethanol production.
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GOLUNSKI SIMONE, SILVA MARCELIF, MARQUES CAMILAT, ROSSETO VANUSA, KAIZER ROSILENER, MOSSI ALTEMIRJ, RIGO DIANE, DALLAGO ROGÉRIOM, DI LUCCIO MARCO, TREICHEL HELEN. Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols. AN ACAD BRAS CIENC 2017; 89:57-63. [DOI: 10.1590/0001-3765201720160367] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 01/01/2017] [Indexed: 11/22/2022] Open
Affiliation(s)
- SIMONE GOLUNSKI
- Universidade Regional Integrada do Alto Uruguai e das Missões, Brazil; Universidade Federal da Fronteira Sul, Brazil
| | - MARCELI F. SILVA
- Universidade Regional Integrada do Alto Uruguai e das Missões, Brazil
| | | | | | | | | | - DIANE RIGO
- Universidade Regional Integrada do Alto Uruguai e das Missões, Brazil
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da Silveira CL, Mazutti MA, Salau NPG. Identifyability measures to select the parameters to be estimated in a solid-state fermentation distributed parameter model. Biotechnol Prog 2016; 32:905-17. [DOI: 10.1002/btpr.2297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 02/25/2016] [Indexed: 11/09/2022]
Affiliation(s)
| | - Marcio A. Mazutti
- Chemical Engineering Dept.; Universidade Federal De Santa Maria; Santa Maria Brazil
| | - Nina P. G. Salau
- Chemical Engineering Dept.; Universidade Federal De Santa Maria; Santa Maria Brazil
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Holyavka M, Evstigneev M, Artyukhov V, Savin V. Development of heterogeneous preparation with inulinase for tubular reactor systems. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Holyavka M, Kondratyev M, Samchenko A, Kabanov A, Komarov V, Artyukhov V. In silico design of high-affinity ligands for the immobilization of inulinase. Comput Biol Med 2016; 71:198-204. [DOI: 10.1016/j.compbiomed.2016.02.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/19/2016] [Accepted: 02/21/2016] [Indexed: 10/22/2022]
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Gasparotto JM, Werle LB, Foletto EL, Kuhn RC, Jahn SL, Mazutti MA. Production of cellulolytic enzymes and application of crude enzymatic extract for saccharification of lignocellulosic biomass. Appl Biochem Biotechnol 2015; 175:560-72. [PMID: 25331378 DOI: 10.1007/s12010-014-1297-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 10/14/2014] [Indexed: 10/24/2022]
Abstract
In this study, the optimal conditions for production of cellulolytic enzymes by Trichoderma reesei NRRL-6156 using the solid-state fermentation were assessed in conical flasks and validated in a packed-bed bioreactor. Afterwards, the crude enzymatic extract obtained in the optimized condition was used for hydrolysis of sugarcane bagasse in water and ultrasound baths. The enzyme activities determined in this work were filter paper, exocellulase, endocellulase, and xylanase. The optimized condition for production was moisture content 68.6 wt% and soybean bran concentration 0.9 wt%. The crude enzymatic extract was applied for hydrolysis of sugarcane bagasse, being obtained 224.0 and 229 g kg(-1) at temperature of 43.4 °C and concentration of enzymatic extract of 18.6 % in water and ultrasound baths, respectively. The yields obtained are comparable to commercial enzymes.
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Affiliation(s)
- Juliana Machado Gasparotto
- Department of Chemical Engineering, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, 97105-900, Brazil
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Modeling the microbial growth and temperature profile in a fixed-bed bioreactor. Bioprocess Biosyst Eng 2014; 37:1945-54. [DOI: 10.1007/s00449-014-1170-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 03/06/2014] [Indexed: 10/25/2022]
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Dilipkumar M, Rajasimman M, Rajamohan N. Utilization of copra waste for the solid state fermentative production of inulinase in batch and packed bed reactors. Carbohydr Polym 2013; 102:662-8. [PMID: 24507333 DOI: 10.1016/j.carbpol.2013.11.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 10/25/2013] [Accepted: 11/02/2013] [Indexed: 10/26/2022]
Abstract
In this study, screening and optimization of nutrients for inulinase production using copra waste has been studied. Plackett-Burman Design (PBD) was employed to screen the significant nutrients for inulinase production. Response surface methodology (RSM) was used to evaluate the effects of nutrient components in the medium. The second order regression equation provides the inulinase activity as the function of K2HPO4, ZnSO4 · 7H2O and soya bean cake. The optimum conditions are: K2HPO4--0.0047 g/gds, ZnSO4 · 7H2O - 0.02677 g/gds and soya bean cake--0.06288 g/gds. At these optimized conditions, experiments were performed in packed bed bioreactor to optimize the process variables like air flow rate, packing density, particle size and moisture content. The optimum conditions were: air flow rate--0.76 L/min, packing density--38 g/L, particle size--10/14 mesh and moisture content--60%. At the optimized conditions, a maximum inulinase production of 239 U/gds was achieved.
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Affiliation(s)
- M Dilipkumar
- Department of Chemical Engineering, Annamalai University, Annamalainagar 608002, Tamilnadu, India.
| | - M Rajasimman
- Department of Chemical Engineering, Annamalai University, Annamalainagar 608002, Tamilnadu, India
| | - N Rajamohan
- Department of Chemical Engineering, Sohar University, Sohar, Oman
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Mathematical Models for Microbial Kinetics in Solid-State Fermentation: A Review. IRANIAN JOURNAL OF BIOTECHNOLOGY 2013. [DOI: 10.5812/ijb.9426] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Inulinase production in a packed bed reactor by solid state fermentation. Carbohydr Polym 2013; 96:196-9. [DOI: 10.1016/j.carbpol.2013.03.078] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 03/11/2013] [Accepted: 03/25/2013] [Indexed: 11/18/2022]
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dos Santos TC, Gomes DPP, Bonomo RCF, Franco M. Optimisation of solid state fermentation of potato peel for the production of cellulolytic enzymes. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.11.115] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Astolfi V, Joris J, Verlindo R, Oliveira JV, Maugeri F, Mazutti MA, de Oliveira D, Treichel H. Operation of a fixed-bed bioreactor in batch and fed-batch modes for production of inulinase by solid-state fermentation. Biochem Eng J 2011. [DOI: 10.1016/j.bej.2011.08.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Brijwani K, Vadlani PV, Hohn KL, Maier DE. Experimental and theoretical analysis of a novel deep-bed solid-state bioreactor for cellulolytic enzymes production. Biochem Eng J 2011. [DOI: 10.1016/j.bej.2011.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Bone tissue engineering is a promising solution for patients with bone defects that require reconstruction. This regenerative therapy consists in culturing osteogenic cells on a biodegradable substrate to obtain a bio-hybrid construct that will stimulate bone healing after implantation. This multidisciplinary technology nevertheless requires further development before it can become routine clinical practice. One challenge is to achieve three-dimensional seeding and osteogenic commitment of mesenchymal stem cells on biomaterials under sterile and reproducible conditions. For this purpose, different dynamic culture systems have been developed. This paper reviews recent advances in the field of bioreactors for bone tissue engineering. The purpose of such systems is to improve nutrient delivery to the cells and generate shear stress that may promote cell differentiation into osteoblastic phenotypes. A brief overview of the value of computational fluid dynamics for understanding the cell environment is also provided. Finally, some proposals are made regarding the use of bioreactors as safe and controllable devices that will help commit cells and biomaterials for the regeneration of bone tissue.
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