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Ethanol fermentation using macroporous monolithic hydrogels as yeast cell scaffolds. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Venkatachalam D, Kaliappa S. Superabsorbent polymers: A state-of-art review on their classification, synthesis, physicochemical properties, and applications. REV CHEM ENG 2021. [DOI: 10.1515/revce-2020-0102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Superabsorbent polymers (SAP) and modified natural polymer hydrogels are widely and increasingly used in agriculture, health care textiles, effluent treatment, drug delivery, tissue engineering, civil concrete structure, etc. However, not many comprehensive reviews are available on this class of novel polymers. A review covering all the viable applications of SAP will be highly useful for researchers, industry persons, and medical, healthcare, and agricultural purposes. Hence, an attempt has been made to review SAPs with reference to their classifications, synthesis, modification by crosslinking, and physicochemical characterization such as morphology, swellability, thermal and mechanical properties, lifetime prediction, thermodynamics of swelling, absorption, release and transport kinetics, quantification of hydrophilic groups, etc. Besides, the possible methods of fine-tuning their structures for improving their absorption capacity, fast absorption kinetics, mechanical strength, controlled release features, etc. were also addressed to widen their uses. This review has also highlighted the biodegradability, commercial viability and market potential of SAPs, SAP composites, the feasibility of using biomass as raw materials for SAP production, etc. The challenges and future prospects of SAP, their safety, and environmental issues are also discussed.
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Affiliation(s)
- Dhanapal Venkatachalam
- Department of Chemistry , Bannari Amman Institute of Technology , Sathyamangalam , 638 401 , Erode Dt , Tamil Nadu , India
| | - Subramanian Kaliappa
- Biopolymer and Biomaterial Synthesis and Analytical Testing Lab, Department of Biotechnology , Bannari Amman Institute of Technology , Sathyamangalam , 638 401 , Erode Dt , Tamil Nadu , India
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Sroka P, Satora P, Tarko T, Duda-Chodak A. The influence of yeast immobilization on selected parameters of young meads. JOURNAL OF THE INSTITUTE OF BREWING 2017. [DOI: 10.1002/jib.409] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paweł Sroka
- Department of Fermentation Technology and Technical Microbiology; University of Agriculture in Krakow; ul. Balicka 122 30-149 Kraków Poland
| | - Paweł Satora
- Department of Fermentation Technology and Technical Microbiology; University of Agriculture in Krakow; ul. Balicka 122 30-149 Kraków Poland
| | - Tomasz Tarko
- Department of Fermentation Technology and Technical Microbiology; University of Agriculture in Krakow; ul. Balicka 122 30-149 Kraków Poland
| | - Aleksandra Duda-Chodak
- Department of Fermentation Technology and Technical Microbiology; University of Agriculture in Krakow; ul. Balicka 122 30-149 Kraków Poland
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Microencapsulation of Baker’s Yeast in Gellan Gum Beads Used in Repeated Cycles of Glucose Fermentation. INT J POLYM SCI 2017. [DOI: 10.1155/2017/7610420] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The purpose of this work is to prepare ionically cross-linked (with CaCl2) gellan particles with immobilized yeast cells for their use in repeated fermentation cycles of glucose. The study investigates the influence of ionic cross-linker concentration on the stability and physical properties of the particles obtained before extrusion and during time in the coagulation bath (the cross-linker solution with different CaCl2 concentrations). It was found that by increasing the amount of the cross-linker the degree of cross-linking in the spherical gellan matrix increases, having a direct influence on the particle morphology and swelling degree in water. These characteristics were found to be very important for diffusion of substrate, that is, the glucose, into the yeast immobilized cells and for the biocatalytic activity of the yeast immobilized cells in gellan particles. These results highlight the potential of these bioreactors to be used in repeated fermentation cycles (minimum 10) without reducing their biocatalytic activity and maintaining their productivity at similar parameters to those obtained in the free yeast fermentation. Encapsulation of Saccharomyces cerevisiae into the gellan gum beads plays a role in the effective application of immobilized yeast for the fermentation process.
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5
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Saccharomyces cerevisiae yeast immobilized on marrow stem sunflower and polyacrylamide hydrogels. OPEN CHEM 2014. [DOI: 10.2478/s11532-014-0508-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractBiocatalysts with microorganisms immobilized on solid carriers could provide the solution for development of continuous industrial processes for ethanol obtaining by fermentation of sugars. In this study, modified polyacrylamide hydrogels and marrow stem sunflower are used as supports for Saccharomyces cerevisiae yeast immobilization. The obtained structures are used for fermentation of molasses in batch systems. The free yeast cells are used as reference. The modification of polyacrilamide matrix with (2-hydroxyethyl)methacrylate has a positive effect on structure pore uniformity and fermentation performance. The mechanical properties of the obtained biocatalysts are compared. The novel natural matrix has net superior compression strength.
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Zabed H, Faruq G, Sahu JN, Azirun MS, Hashim R, Nasrulhaq Boyce A. Bioethanol production from fermentable sugar juice. ScientificWorldJournal 2014; 2014:957102. [PMID: 24715820 PMCID: PMC3970039 DOI: 10.1155/2014/957102] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 12/31/2013] [Indexed: 11/25/2022] Open
Abstract
Bioethanol production from renewable sources to be used in transportation is now an increasing demand worldwide due to continuous depletion of fossil fuels, economic and political crises, and growing concern on environmental safety. Mainly, three types of raw materials, that is, sugar juice, starchy crops, and lignocellulosic materials, are being used for this purpose. This paper will investigate ethanol production from free sugar containing juices obtained from some energy crops such as sugarcane, sugar beet, and sweet sorghum that are the most attractive choice because of their cost-effectiveness and feasibility to use. Three types of fermentation process (batch, fed-batch, and continuous) are employed in ethanol production from these sugar juices. The most common microorganism used in fermentation from its history is the yeast, especially, Saccharomyces cerevisiae, though the bacterial species Zymomonas mobilis is also potentially used nowadays for this purpose. A number of factors related to the fermentation greatly influences the process and their optimization is the key point for efficient ethanol production from these feedstocks.
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Affiliation(s)
- Hossain Zabed
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Golam Faruq
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Jaya Narayan Sahu
- Department of Petroleum and Chemical Engineering, Faculty of Engineering, Institut Teknologi Brunei, Tungku Gadong, P.O. Box 2909, Brunei Darussalam
| | - Mohd Sofian Azirun
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Rosli Hashim
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Amru Nasrulhaq Boyce
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Poreda A, Tuszyński T, Zdaniewicz M, Sroka P, Jakubowski M. Support materials for yeast immobilization affect the concentration of metal ions in the fermentation medium. JOURNAL OF THE INSTITUTE OF BREWING 2013. [DOI: 10.1002/jib.77] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Aleksander Poreda
- Department of Fermentation Technology and Technical Microbiology; University of Agriculture in Krakow; ul. Balicka 122; 31-149; Kraków; Poland
| | - Tadeusz Tuszyński
- Department of Food Chemistry and Toxicology; University of Rzeszow; Al. Rejtana 16C; 35-959; Rzeszow; Poland
| | - Marek Zdaniewicz
- Department of Fermentation Technology and Technical Microbiology; University of Agriculture in Krakow; ul. Balicka 122; 31-149; Kraków; Poland
| | - Paweł Sroka
- Department of Fermentation Technology and Technical Microbiology; University of Agriculture in Krakow; ul. Balicka 122; 31-149; Kraków; Poland
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Mamvura TA, Iyuke SE, Sibanda V, Yah CS. Immobilisation of yeast cells on carbon nanotubes. S AFR J SCI 2012. [DOI: 10.4102/sajs.v108i7/8.768] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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İnal M, Yiğitoğlu M. Improvement of bioethanol productivity of immobilized Saccharomyces bayanus with using sodium alginate-graft-poly(N-vinyl-2-pyrrolidone) matrix. Appl Biochem Biotechnol 2012; 168:266-78. [PMID: 22717770 DOI: 10.1007/s12010-012-9770-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Accepted: 06/05/2012] [Indexed: 11/26/2022]
Abstract
In this study, immobilization conditions and bioethanol production characteristics of immobilized Saccharomyces bayanus were investigated into sodium alginate-graft-poly(N-vinyl-2-pyrrolidone; NaAlg-g-PVP) matrix. The matrix that crosslinked with calcium clorid was used for immobilization of S. bayanus. Bioethanol productivity of the NaAlg-g-PVP matrix was found to increase from 4.21 to 4.84 gL(-1) h(-1) when compared with the convential sodium alginate matrix. The production of bioethanol was affected by initial glucose concentration and percentage of immobilized cell beads in fermentation medium. Bioethanol productivity was increased from 3.62 to 4.84 gL(-1) h(-1) while the glucose concentration increasing from 50 to 100 gL(-1). Due to the increase in percentage from 10 to 20 % of immobilized cell beads in the fermentation medium, bioethanol productivity was increased from 4.84 to 8.68 gL(-1) h(-1). The cell immobilized NaAlg-g-PVP beads were protected 92 % of initial activity after six repeated fermentation.
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Affiliation(s)
- Murat İnal
- Science and Art Faculty, Department of Chemistry, Kirikkale University, Yahşihan 71450 Kirikkale, Turkey.
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Puligundla P, Poludasu RM, Rai JK, Obulam VSR. Repeated batch ethanolic fermentation of very high gravity medium by immobilized Saccharomyces cerevisiae. ANN MICROBIOL 2011. [DOI: 10.1007/s13213-011-0207-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Entrapment of Saccharomyces cerevisiae cells in u.v. crosslinked hydroxyethylcellulose/poly(ethylene oxide) double-layered gels. REACT FUNCT POLYM 2010. [DOI: 10.1016/j.reactfunctpolym.2010.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Ben Akacha N, Zehlila A, Mejri S, Jerbi T, Gargouri M. Effect of gamma-ray on activity and stability of alcohol-dehydrogenase from Saccharomyces cerevisiae. Biochem Eng J 2008. [DOI: 10.1016/j.bej.2007.12.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Li GY, Huang KL, Jiang YR, Ding P. Production of (R)-mandelic acid by immobilized cells of Saccharomyces cerevisiae on chitosan carrier. Process Biochem 2007. [DOI: 10.1016/j.procbio.2007.06.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ethanol fermentation technologies from sugar and starch feedstocks. Biotechnol Adv 2007; 26:89-105. [PMID: 17964107 DOI: 10.1016/j.biotechadv.2007.09.002] [Citation(s) in RCA: 601] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2006] [Revised: 08/26/2007] [Accepted: 09/04/2007] [Indexed: 11/22/2022]
Abstract
This article critically reviews some ethanol fermentation technologies from sugar and starch feedstocks, particularly those key aspects that have been neglected or misunderstood. Compared with Saccharomyces cerevisiae, the ethanol yield and productivity of Zymomonas mobilis are higher, because less biomass is produced and a higher metabolic rate of glucose is maintained through its special Entner-Doudoroff pathway. However, due to its specific substrate spectrum as well as the undesirability of its biomass to be used as animal feed, this species cannot readily replace S. cerevisiae in ethanol production. The steady state kinetic models developed for continuous ethanol fermentations show some discrepancies, making them unsuitable for predicting and optimizing the industrial processes. The dynamic behavior of the continuous ethanol fermentation under high gravity or very high gravity conditions has been neglected, which needs to be addressed in order to further increase the final ethanol concentration and save the energy consumption. Ethanol is a typical primary metabolite whose production is tightly coupled with the growth of yeast cells, indicating yeast must be produced as a co-product. Technically, the immobilization of yeast cells by supporting materials, particularly by gel entrapments, is not desirable for ethanol production, because not only is the growth of the yeast cells restrained, but also the slowly growing yeast cells are difficult to be removed from the systems. Moreover, the additional cost from the consumption of the supporting materials, the potential contamination of some supporting materials to the quality of the co-product animal feed, and the difficulty in the microbial contamination control all make the immobilized yeast cells economically unacceptable. In contrast, the self-immobilization of yeast cells through their flocculation can effectively overcome these drawbacks.
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Xie J, Liu X, Liang J. Absorbency and adsorption of poly(acrylic acid-co-acrylamide) hydrogel. J Appl Polym Sci 2007. [DOI: 10.1002/app.26666] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Immobilised derivatives of Williopsis californica, Williopsis saturnus, Pachysolen tannophilus: New biocatalysts useful in the stereoselective oxidation of 1-tetralol. Enzyme Microb Technol 2006. [DOI: 10.1016/j.enzmictec.2006.01.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Impacts of temperature, pH, divalent cations, sugars and ethanol on the flocculating of SPSC01. Enzyme Microb Technol 2006. [DOI: 10.1016/j.enzmictec.2005.12.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Saraydın D, Karadagˇ E, Işıkver Y, Şahiner N, Güven O. The Influence of Preparation Methods on the Swelling and Network Properties of Acrylamide Hydrogels with Crosslinkers. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2004. [DOI: 10.1081/ma-120028476] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kourkoutas Y, Bekatorou A, Banat I, Marchant R, Koutinas A. Immobilization technologies and support materials suitable in alcohol beverages production: a review. Food Microbiol 2004. [DOI: 10.1016/j.fm.2003.10.005] [Citation(s) in RCA: 416] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Carballeira JD, Álvarez E, Sinisterra JV. Biotransformation of cyclohexanone using immobilized Geotrichum candidum NCYC49. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcatb.2004.01.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Current awareness on yeast. Yeast 2003; 20:653-60. [PMID: 12769126 DOI: 10.1002/yea.945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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