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Vanacloig-Pedros E, Fisher KJ, Liu L, Debrauske DJ, Young MKM, Place M, Hittinger CT, Sato TK, Gasch AP. Comparative chemical genomic profiling across plant-based hydrolysate toxins reveals widespread antagonism in fitness contributions. FEMS Yeast Res 2022; 21:6650360. [PMID: 35883225 PMCID: PMC9508847 DOI: 10.1093/femsyr/foac036] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/06/2022] [Accepted: 07/21/2022] [Indexed: 11/15/2022] Open
Abstract
The budding yeast Saccharomyces cerevisiae has been used extensively in fermentative industrial processes, including biofuel production from sustainable plant-based hydrolysates. Myriad toxins and stressors found in hydrolysates inhibit microbial metabolism and product formation. Overcoming these stresses requires mitigation strategies that include strain engineering. To identify shared and divergent mechanisms of toxicity and to implicate gene targets for genetic engineering, we used a chemical genomic approach to study fitness effects across a library of S. cerevisiae deletion mutants cultured anaerobically in dozens of individual compounds found in different types of hydrolysates. Relationships in chemical genomic profiles identified classes of toxins that provoked similar cellular responses, spanning inhibitor relationships that were not expected from chemical classification. Our results also revealed widespread antagonistic effects across inhibitors, such that the same gene deletions were beneficial for surviving some toxins but detrimental for others. This work presents a rich dataset relating gene function to chemical compounds, which both expands our understanding of plant-based hydrolysates and provides a useful resource to identify engineering targets.
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Affiliation(s)
- Elena Vanacloig-Pedros
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, 53726, Madison, WI, United States
| | - Kaitlin J Fisher
- Laboratory of Genetics, University of Wisconsin-Madison, 53706, Madison, WI, United States
- Center for Genomic Science Innovation, University of Wisconsin-Madison, 53706, Madison, WI, United States
- J.F. Crow Institute for the Study of Evolution, 53706, Madison, WI, United States
| | - Lisa Liu
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, 53726, Madison, WI, United States
| | - Derek J Debrauske
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, 53726, Madison, WI, United States
| | - Megan K M Young
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, 53726, Madison, WI, United States
| | - Michael Place
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, 53726, Madison, WI, United States
| | - Chris Todd Hittinger
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, 53726, Madison, WI, United States
- Laboratory of Genetics, University of Wisconsin-Madison, 53706, Madison, WI, United States
- Center for Genomic Science Innovation, University of Wisconsin-Madison, 53706, Madison, WI, United States
- J.F. Crow Institute for the Study of Evolution, 53706, Madison, WI, United States
| | - Trey K Sato
- Corresponding author: Trey K. Sato, Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, 4117 Wisconsin Energy Institute, 1552 University Ave, Madison, WI 53726. Tel: (608) 890-2546; E-mail:
| | - Audrey P Gasch
- Corresponding author: Audrey P. Gasch, Center for Genomic Science Innovation, University of Wisconsin-Madison, 3422 Genetics-Biotechnology Center, 425 Henry Mall, Madison, WI 53704, United States. Tel: (608)265-0859; E-mail:
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2
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Evaluation of detoxified sugarcane bagasse hydrolysate by atmospheric cold plasma for bacterial cellulose production. Int J Biol Macromol 2022; 204:136-143. [PMID: 35120944 DOI: 10.1016/j.ijbiomac.2022.01.186] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 11/23/2022]
Abstract
Cellulosic waste as a major type of agricultural waste can be acid deconstructed as a carbon source for fermentation application. However, various fermented inhibitors, such as formic acid, furfural, and 5-hydroxymethylfurfural, are also produced during processing. In this study, sugarcane bagasse (SB) was hydrolyzed with sulfuric acid, and atmospheric cold plasma (ACP) was used to remove the toxic inhibitors. The detoxified SB hydrolysate was used as alternative nutrients for bacterial cellulose (BC) production. Results showed that degradation rates of formic acid, 5-hydroxymethylfurfural, and furfural respectively reached 25.2%, 78.6%, and 100% with optimized ACP conditions (argon ACP at 200 W for 25 min). In BC production, the ACP-treated SB hydrolysate group (PT) exhibited high BC production (1.68 g/L) but was lower than that from the ACP-untreated SB hydrolysate group (PUT) (1.88 g/L), which suggests that ACP detoxification might also cause some crucial nutrients loss of the SB hydrolysate, leading to a decrease in BC production. The material properties of BC produced from detoxified based medium are also evaluated. These findings have important implications for the broader domain of ACP detoxification for cellulosic acid hydrolysates applied to BC production.
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3
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Cannazza P, Rissanen AJ, Guizelini D, Losoi P, Sarlin E, Romano D, Santala V, Mangayil R. Characterization of Komagataeibacter Isolate Reveals New Prospects in Waste Stream Valorization for Bacterial Cellulose Production. Microorganisms 2021; 9:2230. [PMID: 34835356 PMCID: PMC8621423 DOI: 10.3390/microorganisms9112230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
Komagataeibacter spp. has been used for the bioconversion of industrial wastes and lignocellulosic hydrolysates to bacterial cellulose (BC). Recently, studies have demonstrated the capacity of Komagataeibacter spp. in the biotransformation of inhibitors found in lignocellulosic hydrolysates, aromatic lignin-derived monomers (LDMs) and acetate. In general, detoxification and BC synthesis from lignocellulosic inhibitors requires a carbon flow from acetyl-coA towards tricarboxylic acid and gluconeogenesis, respectively. However, the related molecular aspects have not yet been identified in Komagataeibacter spp. In this study, we isolated a cellulose-producing bacterium capable of synthesizing BC in a minimal medium containing crude glycerol, a by-product from the biodiesel production process. The isolate, affiliated to Komagataeibacter genus, synthesized cellulose in a minimal medium containing glucose (3.3 ± 0.3 g/L), pure glycerol (2.2 ± 0.1 g/L) and crude glycerol (2.1 ± 0.1 g/L). Genome assembly and annotation identified four copies of bacterial cellulose synthase operon and genes for redirecting the carbon from the central metabolic pathway to gluconeogenesis. According to the genome annotations, a BC production route from acetyl-CoA, a central metabolic intermediate, was hypothesized and was validated using acetate. We identified that when K. rhaeticus ENS9b was grown in a minimal medium supplemented with acetate, BC production was not observed. However, in the presence of readily utilizable substrates, such as spent yeast hydrolysate, acetate supplementation improved BC synthesis.
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Affiliation(s)
- Pietro Cannazza
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy;
- Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland; (A.J.R.); (P.L.); (E.S.); (V.S.)
| | - Antti J. Rissanen
- Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland; (A.J.R.); (P.L.); (E.S.); (V.S.)
| | - Dieval Guizelini
- Graduate Program in Bioinformatics, Sector of Professional and Technological Education, Federal University of Parana (UFPR), Curitiba 81520-260, PR, Brazil;
| | - Pauli Losoi
- Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland; (A.J.R.); (P.L.); (E.S.); (V.S.)
| | - Essi Sarlin
- Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland; (A.J.R.); (P.L.); (E.S.); (V.S.)
| | - Diego Romano
- Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy;
| | - Ville Santala
- Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland; (A.J.R.); (P.L.); (E.S.); (V.S.)
| | - Rahul Mangayil
- Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland; (A.J.R.); (P.L.); (E.S.); (V.S.)
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Sánchez-Osorno DM, Gomez-Maldonado D, Castro C, Peresin MS. Surface Interactions between Bacterial Nanocellulose and B-Complex Vitamins. Molecules 2020; 25:E4041. [PMID: 32899662 PMCID: PMC7571027 DOI: 10.3390/molecules25184041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 11/16/2022] Open
Abstract
The interactions between films of bacterial nanocellulose (BNC) and B complex vitamins were studied using a Quartz Crystal Microbalance with Dissipation monitoring (QCM-D). Thin films of BNC were generated in situ by QCM-D, followed by real-time measurements of the vitamin adsorption. The desorption of vitamins was induced by rinsing the system using phosphate buffers at a pH of 2 and 6.5, emulating gastric conditions. Changes in frequency (which are proportional to changes in adsorbed mass, ∆m) detected by QCM-D were used to determine the amounts of vitamin adsorbed and released from the BNC film. Additionally, changes in dissipation (∆D) were proven to be useful in identifying the effects of the pH in both pristine cellulose films and films with vitamin pre-adsorbed, following its changes during release. The effects of pH on the morphology of the vitamin-BNC surfaces were also monitored by changes in rugosity from images obtained by atomic force microscopy (AFM). Based on this data, we propose a model for the binding phenomena, with the contraction on the relaxation of the cellulose film depending on pH, resulting in an efficient vitamin delivery process.
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Affiliation(s)
- Diego Mauricio Sánchez-Osorno
- Facultad de Ingeniería agroindustrial, Universidad Pontificia Bolivariana, Circular 1°, No 70-01, Medellín 050031, Colombia;
| | - Diego Gomez-Maldonado
- Forest Products Development Center, School of Forestry & Wildlife Sciences, Auburn University, 520 Devall Dr., Auburn, AL 36849, USA;
| | - Cristina Castro
- Facultad de Ingeniería textil, Universidad Pontificia Bolivariana, Circular 1°, No 70-01, Medellín 050031, Colombia;
| | - María Soledad Peresin
- Forest Products Development Center, School of Forestry & Wildlife Sciences, Auburn University, 520 Devall Dr., Auburn, AL 36849, USA;
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Fernandes IDAA, Maciel GM, Oliveira ALMS, Miorim AJF, Fontana JD, Ribeiro VR, Haminiuk CWI. Hybrid bacterial cellulose‐collagen membranes production in culture media enriched with antioxidant compounds from plant extracts. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25514] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
| | - Giselle Maria Maciel
- Laboratório de Biotecnologia Universidade Tecnológica Federal do Paraná (UTFPR) Curitiba Brazil
| | | | - Avany Judith Ferraro Miorim
- Departamento Acadêmico de Química e Biologia (DAQBi) Universidade Tecnológica Federal do Paraná Curitiba Brazil
| | | | - Valéria Rampazzo Ribeiro
- Programa de Pós‐Graduação em Engenharia de Alimentos (PPGEAL) Universidade Federal do Paraná (UFPR) Curitiba Brazil
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Chen G, Chen L, Wang W, Chen S, Wang H, Wei Y, Hong FF. Improved bacterial nanocellulose production from glucose without the loss of quality by evaluating thirteen agitator configurations at low speed. Microb Biotechnol 2019; 12:1387-1402. [PMID: 31503407 PMCID: PMC6801155 DOI: 10.1111/1751-7915.13477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 07/31/2019] [Indexed: 11/29/2022] Open
Abstract
Thirteen agitator configurations were investigated at low speed in stirred-tank reactors (STRs) to determine if improved crude bacterial nanocellulose (BNC) productivity can be achieved from glucose-based media while maintaining high BNC quality using Komagataeibacter xylinus ATCC 23770 as a model organism. A comparison of five single impellers showed the pitched blade (large) was the optimal impeller at 300 rpm. The BNC production was further increased by maintaining the pH at 5.0. Among the single helical ribbon and frame impellers and the combined impellers, the twin pitched blade provided the best results. The combined impellers at 150 rpm performed better than the single impellers, and after optimizing the agitation conditions, the twin pitched blade (large) and helical ribbon impellers performed the best at 100 rpm. The performances of different agitators at low speed during BNC production were related to how efficiently the agitators improved the oxygen mass transfer coefficient. The twin pitched blade (large) was verified as providing the optimum performance by an observed crude BNC production of 1.97 g (L×d)-1 and a BNC crude yield of consumed glucose of 0.41 g g-1 , which were 2.25 and 2.37 times higher than the initial values observed using the single impeller respectively. Further characterization indicated that the BNC obtained at 100 rpm from the STR equipped with the optimal agitator maintained high degree of polymerization and crystallinity.
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Affiliation(s)
- Genqiang Chen
- Key Lab of Science and Technology of Eco‐textileMinistry of EducationDonghua UniversityNorth Ren Min Road 2999Shanghai201620China
- Group of Microbiological Engineering and Industrial BiotechnologyCollege of Chemistry, Chemical Engineering and BiotechnologyDonghua UniversityNorth Ren Min Road 2999Shanghai201620China
| | - Lin Chen
- Group of Microbiological Engineering and Industrial BiotechnologyCollege of Chemistry, Chemical Engineering and BiotechnologyDonghua UniversityNorth Ren Min Road 2999Shanghai201620China
| | - Wei Wang
- Key Lab of Science and Technology of Eco‐textileMinistry of EducationDonghua UniversityNorth Ren Min Road 2999Shanghai201620China
- Group of Microbiological Engineering and Industrial BiotechnologyCollege of Chemistry, Chemical Engineering and BiotechnologyDonghua UniversityNorth Ren Min Road 2999Shanghai201620China
| | - Shiyan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsDonghua UniversityShanghai201620China
| | - Huaping Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsDonghua UniversityShanghai201620China
| | - Yen Wei
- Department of Chemistry and the Tsinghua Center for Frontier Polymer ResearchTsinghua UniversityBeijing100084China
- Department of Chemistry and Center for Nanotechnology and Institute of Biomedical TechnologyChung‐Yuan Christian UniversityTaiwanChina
| | - Feng F. Hong
- Key Lab of Science and Technology of Eco‐textileMinistry of EducationDonghua UniversityNorth Ren Min Road 2999Shanghai201620China
- Group of Microbiological Engineering and Industrial BiotechnologyCollege of Chemistry, Chemical Engineering and BiotechnologyDonghua UniversityNorth Ren Min Road 2999Shanghai201620China
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsDonghua UniversityShanghai201620China
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7
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Bhatia SK, Gurav R, Choi TR, Han YH, Park YL, Park JY, Jung HR, Yang SY, Song HS, Kim SH, Choi KY, Yang YH. Bioconversion of barley straw lignin into biodiesel using Rhodococcus sp. YHY01. BIORESOURCE TECHNOLOGY 2019; 289:121704. [PMID: 31276990 DOI: 10.1016/j.biortech.2019.121704] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 06/09/2023]
Abstract
Rhodococcus sp. YHY01 was studied to utilize various lignin derived aromatic compounds. It was able to utilize p-coumaric acid, cresol, and 2,6 dimethoxyphenol and resulted in biomass production i.e. 0.38 g dcw/L, 0.25 g dcw/L and 0.1 g dcw/L, and lipid accumulation i.e. 49%, 40%, 30%, respectively. The half maximal inhibitory concentration (IC50) value for p-coumaric acid (13.4 mM), cresol (7.9 mM), and 2,6 dimethoxyphenol (3.4 mM) was analyzed. Dimethyl sulfoxide (DMSO) solubilized barley straw lignin fraction was used as a carbon source for Rhodococcus sp. YHY01 and resulted in 0.130 g dcw/L with 39% w/w lipid accumulation. Major fatty acids were palmitic acid (C16:0) 51.87%, palmitoleic acid (C16:l) 14.90%, and oleic acid (C18:1) 13.76%, respectively. Properties of biodiesel produced from barley straw lignin were as iodine value (IV) 27.25, cetane number (CN) 65.57, cold filter plugging point (CFPP) 14.36, viscosity (υ) 3.81, and density (ρ) 0.86.
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Affiliation(s)
- Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea; Institute for Ubiquitous Information Technology and App1ications (CBRU), Konkuk University, Seoul, South Korea
| | - Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Tae-Rim Choi
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Yeong Hoon Han
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Ye-Lim Park
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Jun Young Park
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Hye-Rim Jung
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Soo-Yeon Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Hun-Suk Song
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea; Institute for Ubiquitous Information Technology and App1ications (CBRU), Konkuk University, Seoul, South Korea.
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8
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Biotransformation of fermented black tea into bacterial nanocellulose via symbiotic interplay of microorganisms. Int J Biol Macromol 2019; 132:166-177. [DOI: 10.1016/j.ijbiomac.2019.03.202] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/16/2019] [Accepted: 03/26/2019] [Indexed: 11/20/2022]
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Vasconcellos VM, Farinas CS, Ximenes E, Slininger P, Ladisch M. Adaptive laboratory evolution of nanocellulose‐producing bacterium. Biotechnol Bioeng 2019; 116:1923-1933. [DOI: 10.1002/bit.26997] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/19/2019] [Accepted: 04/25/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Vanessa M. Vasconcellos
- Graduate Program of Chemical Engineering Federal University of São Carlos São Carlos São Paulo Brazil
- Embrapa Instrumentation São Carlos São Paulo Brazil
| | - Cristiane S. Farinas
- Graduate Program of Chemical Engineering Federal University of São Carlos São Carlos São Paulo Brazil
- Embrapa Instrumentation São Carlos São Paulo Brazil
| | - Eduardo Ximenes
- Laboratory of Renewable Resources Engineering Weldon School of Biomedical Engineering, Agricultural and Biological Engineering, Purdue University West Lafayette Indiana
| | - Patricia Slininger
- Bioenergy Research Unit Anchor National Center for Agricultural Utilization Research USDA Peoria Illinois
| | - Michael Ladisch
- Laboratory of Renewable Resources Engineering Weldon School of Biomedical Engineering, Agricultural and Biological Engineering, Purdue University West Lafayette Indiana
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Ravi K, Abdelaziz OY, Nöbel M, García-Hidalgo J, Gorwa-Grauslund MF, Hulteberg CP, Lidén G. Bacterial conversion of depolymerized Kraft lignin. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:56. [PMID: 30923564 PMCID: PMC6420747 DOI: 10.1186/s13068-019-1397-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 03/08/2019] [Indexed: 05/24/2023]
Abstract
BACKGROUND Lignin is a potential feedstock for microbial conversion into various chemicals. However, the microbial degradation rate of native or technical lignin is low, and chemical depolymerization is needed to obtain reasonable conversion rates. In the current study, nine bacterial strains belonging to the Pseudomonas and Rhodococcus genera were evaluated for their ability to grow on alkaline-treated softwood lignin as a sole carbon source. RESULTS Pseudomonas fluorescens DSM 50090 and Rhodococcus opacus DSM1069 showed the best growth of the tested species on plates with lignin. Further evaluation of P. fluorescens and R. opacus was made in liquid cultivations with depolymerized softwood Kraft lignin (DL) at a concentration of 1 g/L. Size-exclusion chromatography (SEC) showed that R. opacus consumed most of the available lower-molecular weight compounds (approximately 0.1-0.4 kDa) in the DL, but the weight distribution of larger fractions was almost unaffected. Importantly, the consumed compounds included guaiacol-one of the main monomers in the DL. SEC analysis of P. fluorescens culture broth, in contrast, did not show a large conversion of low-molecular weight compounds, and guaiacol remained unconsumed. However, a significant shift in molecular weight distribution towards lower average weights was seen after cultivation with P. fluorescens. CONCLUSIONS Rhodococcus opacus and P. fluorescens were identified as two potential microbial candidates for the conversion/consumption of base-catalyzed depolymerized lignin, acting on low- and high-molecular weight lignin fragments, respectively. These findings will be of relevance for designing bioconversion of softwood Kraft lignin.
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Affiliation(s)
- Krithika Ravi
- Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | - Omar Y. Abdelaziz
- Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | - Matthias Nöbel
- Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund, Sweden
- Present Address: Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072 Australia
| | - Javier García-Hidalgo
- Department of Chemistry, Applied Microbiology, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | - Marie F. Gorwa-Grauslund
- Department of Chemistry, Applied Microbiology, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | | | - Gunnar Lidén
- Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund, Sweden
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11
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Materials chemistry and the futurist eco-friendly applications of nanocellulose: Status and prospect. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2018.02.005] [Citation(s) in RCA: 174] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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12
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Ravi K, Abdelaziz OY, Nöbel M, García-Hidalgo J, Gorwa-Grauslund MF, Hulteberg CP, Lidén G. Bacterial conversion of depolymerized Kraft lignin. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:240. [PMID: 30202435 PMCID: PMC6123935 DOI: 10.1186/s13068-018-1240-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Lignin is a potential feedstock for microbial conversion into various chemicals. However, the degradation rate of native or technical lignin is low, and depolymerization is needed to obtain reasonable conversion rates. In the current study, base-catalyzed depolymerization-using NaOH (5 wt%)-of softwood Kraft lignin was conducted in a continuous-flow reactor system at temperatures in the range 190-240 °C and residence times of 1 or 2 min. The ability of growth of nine bacterial strains belonging to the genera Pseudomonas and Rhodococcus was tested using the alkaline-treated lignin as a sole carbon source. RESULTS Pseudomonas fluorescens and Rhodococcus opacus showed the best growth of the tested species on plates with lignin. Further evaluation of P. fluorescens and R. opacus was made in liquid cultivations with depolymerized lignin (DL) at a concentration of 1 g/L. Size exclusion chromatography (SEC) showed that R. opacus consumed most of the available lower molecular weight compounds (approximately 0.1-0.4 kDa) in the DL, but the weight distribution of larger fractions was almost unaffected. Importantly, the consumed compounds included guaiacol-one of the main monomers in the DL. SEC analysis of P. fluorescens culture broth, in contrast, did not show a large conversion of low molecular weight compounds, and guaiacol remained unconsumed. However, a significant shift in molecular weight distribution towards lower average weights was seen. CONCLUSIONS Rhodococcus opacus and P. fluorescens were identified as two potential microbial candidates for the conversion/consumption of base-catalyzed depolymerized lignin, acting on low and high molecular weight lignin fragments, respectively. These findings will be of relevance for designing bioconversion of softwood Kraft lignin.
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Affiliation(s)
- Krithika Ravi
- Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | - Omar Y. Abdelaziz
- Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | - Matthias Nöbel
- Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund, Sweden
- Present Address: Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072 Australia
| | - Javier García-Hidalgo
- Department of Chemistry, Applied Microbiology, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | - Marie F. Gorwa-Grauslund
- Department of Chemistry, Applied Microbiology, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | | | - Gunnar Lidén
- Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund, Sweden
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13
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Dubey S, Singh J, Singh RP. Biotransformation of sweet lime pulp waste into high-quality nanocellulose with an excellent productivity using Komagataeibacter europaeus SGP37 under static intermittent fed-batch cultivation. BIORESOURCE TECHNOLOGY 2018; 247:73-80. [PMID: 28946097 DOI: 10.1016/j.biortech.2017.09.089] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 05/11/2023]
Abstract
Herein, sweet lime pulp waste (SLPW) was utilized as a low- or no-cost feedstock for the production of bacterial nanocellulose (BNC) alone and in amalgamation with other nutritional supplements by the isolate K. europaeus SGP37 under static batch and static intermittent fed-batch cultivation. The highest yield (26.2±1.50gL-1) was obtained in the hot water extract of SLPW supplemented with the components of HS medium, which got further boosted to 38±0.85gL-1 as the cultivation strategy was shifted from static batch to static intermittent fed-batch. BNC obtained from various SLPW medium was similar or even superior to that obtained with standard HS medium in terms of its physicochemical properties. The production yields of BNC thus obtained are significantly higher and fit well in terms of industrial scale production.
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Affiliation(s)
- Swati Dubey
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Jyoti Singh
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - R P Singh
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
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14
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Zou X, Wu G, Stagge S, Chen L, Jönsson LJ, Hong FF. Comparison of tolerance of four bacterial nanocellulose-producing strains to lignocellulose-derived inhibitors. Microb Cell Fact 2017; 16:229. [PMID: 29268745 PMCID: PMC5738851 DOI: 10.1186/s12934-017-0846-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 12/13/2017] [Indexed: 01/02/2023] Open
Abstract
Background Through pretreatment and enzymatic saccharification lignocellulosic biomass has great potential as a low-cost feedstock for production of bacterial nanocellulose (BNC), a high value-added microbial product, but inhibitors formed during pretreatment remain challenging. In this study, the tolerance to lignocellulose-derived inhibitors of three new BNC-producing strains were compared to that of Komagataeibacter xylinus ATCC 23770. Inhibitors studied included furan aldehydes (furfural and 5-hydroxymethylfurfural) and phenolic compounds (coniferyl aldehyde and vanillin). The performance of the four strains in the presence and absence of the inhibitors was assessed using static cultures, and their capability to convert inhibitors by oxidation and reduction was analyzed. Results Although two of the new strains were more sensitive than ATCC 23770 to furan aldehydes, one of the new strains showed superior resistance to both furan aldehydes and phenols, and also displayed high volumetric BNC yield (up to 14.78 ± 0.43 g/L) and high BNC yield on consumed sugar (0.59 ± 0.02 g/g). The inhibitors were oxidized and/or reduced by the strains to be less toxic. The four strains exhibited strong similarities with regard to predominant bioconversion products from the inhibitors, but displayed different capacity to convert the inhibitors, which may be related to the differences in inhibitor tolerance. Conclusions This investigation provides information on different performance of four BNC-producing strains in the presence of lignocellulose-derived inhibitors. The results will be of benefit to the selection of more suitable strains for utilization of lignocellulosics in the process of BNC-production.
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Affiliation(s)
- Xiaozhou Zou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, China.,China-Sweden Associated Research Laboratory in Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.,Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Guochao Wu
- China-Sweden Associated Research Laboratory in Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.,Department of Chemistry, KBC Chemical-Biological Centre, Umeå University, 901 87, Umeå, Sweden
| | - Stefan Stagge
- China-Sweden Associated Research Laboratory in Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.,Department of Chemistry, KBC Chemical-Biological Centre, Umeå University, 901 87, Umeå, Sweden
| | - Lin Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, China.,China-Sweden Associated Research Laboratory in Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.,Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Leif J Jönsson
- China-Sweden Associated Research Laboratory in Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.,Department of Chemistry, KBC Chemical-Biological Centre, Umeå University, 901 87, Umeå, Sweden
| | - Feng F Hong
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620, China. .,China-Sweden Associated Research Laboratory in Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China. .,Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.
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15
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Luo MT, Zhao C, Huang C, Chen XF, Huang QL, Qi GX, Tian LL, Xiong L, Li HL, Chen XD. Efficient Using Durian Shell Hydrolysate as Low-Cost Substrate for Bacterial Cellulose Production by Gluconacetobacter xylinus. Indian J Microbiol 2017; 57:393-399. [PMID: 29151639 PMCID: PMC5671436 DOI: 10.1007/s12088-017-0681-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 10/14/2017] [Indexed: 10/18/2022] Open
Abstract
Durian is one important tropical fruit with high nutritional value, but its shell is usually useless and considered as waste. To explore the efficient and high-value utilization of this agricultural and food waste, in this study, durian shell was simply hydrolyzed by dilute sulfuric acid, and the durian shell hydrolysate after detoxification was used for bacterial cellulose (BC) production by Gluconacetobacter xylinus for the first time. BC was synthesized in static culture for 10 days and the highest BC yield (2.67 g/L) was obtained at the 8th day. The typical carbon sources in the substrate including glucose, xylose, formic acid, acetic acid, etc. can be utilized by G. xylinus. The highest chemical oxygen demand (COD) removal (16.40%) was obtained at the 8th day. The highest BC yield on COD consumption and the highest BC yield on sugar consumption were 93.51% and 22.98% (w/w), respectively, suggesting this is one efficient bioconversion for BC production. Durian shell hydrolysate showed small influence on the BC structure by comparison with the structure of BC generated in traditional Hestrin-Schramm medium detected by FE-SEM, FTIR, and XRD. Overall, this technology can both solve the issue of waste durian shell and produce valuable bio-polymer (BC).
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Affiliation(s)
- Mu-Tan Luo
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Cheng Zhao
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Chao Huang
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
| | - Xue-Fang Chen
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
| | - Qian-Lin Huang
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Gao-Xiang Qi
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Lan-Lan Tian
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Lian Xiong
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
| | - Hai-Long Li
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
| | - Xin-De Chen
- Key Laboratory of Renewable Energy, Chinese Academy of Sciences, No. 2 Nengyuan Road, Tianhe District, Guangzhou, 510640 People’s Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640 People’s Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 People’s Republic of China
- Xuyi Center of Attapulgite Research Development and Industrialization, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi, 211700 People’s Republic of China
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16
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Chen G, Wu G, Alriksson B, Wang W, Hong FF, Jönsson LJ. Bioconversion of Waste Fiber Sludge to Bacterial Nanocellulose and Use for Reinforcement of CTMP Paper Sheets. Polymers (Basel) 2017; 9:polym9090458. [PMID: 30965761 PMCID: PMC6418804 DOI: 10.3390/polym9090458] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/07/2017] [Accepted: 09/14/2017] [Indexed: 12/03/2022] Open
Abstract
Utilization of bacterial nanocellulose (BNC) for large-scale applications is restricted by low productivity in static cultures and by the high cost of the medium. Fiber sludge, a waste stream from pulp and paper mills, was enzymatically hydrolyzed to sugar, which was used for the production of BNC by the submerged cultivation of Komagataeibacter xylinus. Compared with a synthetic glucose-based medium, the productivity of purified BNC from the fiber sludge hydrolysate using shake-flasks was enhanced from 0.11 to 0.17 g/(L × d), although the average viscometric degree of polymerization (DPv) decreased from 6760 to 6050. The cultivation conditions used in stirred-tank reactors (STRs), including the stirring speed, the airflow, and the pH, were also investigated. Using STRs, the BNC productivity in fiber-sludge medium was increased to 0.32 g/(L × d) and the DPv was increased to 6650. BNC produced from the fiber sludge hydrolysate was used as an additive in papermaking based on the chemithermomechanical pulp (CTMP) of birch. The introduction of BNC resulted in a significant enhancement of the mechanical strength of the paper sheets. With 10% (w/w) BNC in the CTMP/BNC mixture, the tear resistance was enhanced by 140%. SEM images showed that the BNC cross-linked and covered the surface of the CTMP fibers, resulting in enhanced mechanical strength.
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Affiliation(s)
- Genqiang Chen
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
- Department of Chemistry, Umeå University, Umeå SE-901 87, Sweden.
| | - Guochao Wu
- Department of Chemistry, Umeå University, Umeå SE-901 87, Sweden.
| | | | - Wei Wang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Feng F Hong
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Leif J Jönsson
- Department of Chemistry, Umeå University, Umeå SE-901 87, Sweden.
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17
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From rotten grapes to industrial exploitation: Komagataeibacter europaeus SGP37, a micro-factory for macroscale production of bacterial nanocellulose. Int J Biol Macromol 2017; 96:52-60. [DOI: 10.1016/j.ijbiomac.2016.12.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/21/2016] [Accepted: 12/07/2016] [Indexed: 11/23/2022]
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18
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Bhatia SK, Lee BR, Sathiyanarayanan G, Song HS, Kim J, Jeon JM, Yoon JJ, Ahn J, Park K, Yang YH. Biomass-derived molecules modulate the behavior of Streptomyces coelicolor for antibiotic production. 3 Biotech 2016; 6:223. [PMID: 28330295 PMCID: PMC5065882 DOI: 10.1007/s13205-016-0539-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/03/2016] [Indexed: 11/29/2022] Open
Abstract
Various chemicals, i.e., furfural, vanillin, 4-hydroxybenzaldehyde and acetate produced during the pretreatment of biomass affect microbial fermentation. In this study, effect of vanillin, 4-hydroxybenzaldehyde and acetate on antibiotic production in Streptomyces coelicolor is investigated. IC50 value of vanillin, 4-hydroxybenzaldehyde and acetate was recorded as 5, 11.3 and 115 mM, respectively. Vanillin was found as a very effective molecule, and it completely abolished antibiotic (undecylprodigiosin and actinorhodin) production at 1 mM concentration, while 4-hydroxybenzaldehyde and acetate have little effect. Microscopic analysis with field emission scanning electron microscopy (FESEM) showed that addition of vanillin inhibits mycelia formation and increases differentiation of S. coelicolor cells. Vanillin increases expression of genes responsible for sporulation (ssgA) and decreases expression of antibiotic transcriptional regulator (redD and actII-orf4), while it has no effect on genes related to the mycelia formation (bldA and bldN) and quorum sensing (scbA and scbR). Vanillin does not affect the glycolysis process, but may affect acetate and pyruvate accumulation which leads to increase in fatty acid accumulation. The production of antibiotics using biomass hydrolysates can be quite complex due to the presence of exogenous chemicals such as furfural and vanillin, and needs further detailed study.
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Affiliation(s)
- Shashi Kant Bhatia
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul, 143-701, South Korea
- Institute for Ubiquitous Information Technology and Applications Konkuk University, Seoul, 143-701, South Korea
| | - Bo-Rahm Lee
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul, 143-701, South Korea
| | - Ganesan Sathiyanarayanan
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul, 143-701, South Korea
| | - Hun Seok Song
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul, 143-701, South Korea
| | - Junyoung Kim
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul, 143-701, South Korea
| | - Jong-Min Jeon
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul, 143-701, South Korea
| | - Jeong-Jun Yoon
- IT Convergence Materials R&BD Group, Chungcheong Regional Division, Korea Institute of Industrial Technology (KITECH), 35-3 Hongchon-ri, Ipjang-myun, Seobuk-gu, Chonan-si, Chungnam, 330-825, South Korea
| | - Jungoh Ahn
- Biotechnology Process Engineering Center, Korea Research Institute Bioscience Biotechnology (KRIBB), Gwahangno, Yuseong-Gu, Daejeon, 305-806, South Korea
| | - Kyungmoon Park
- Department of Biological and Chemical Engineering, Hongik University, Sejong Ro 2639, Jochiwon, Sejong, South Korea
| | - Yung-Hun Yang
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul, 143-701, South Korea.
- Institute for Ubiquitous Information Technology and Applications Konkuk University, Seoul, 143-701, South Korea.
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19
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Bacterial nanocellulose production and application: a 10-year overview. Appl Microbiol Biotechnol 2016; 100:2063-72. [PMID: 26743657 DOI: 10.1007/s00253-015-7243-4] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 12/07/2015] [Accepted: 12/09/2015] [Indexed: 10/22/2022]
Abstract
Production of bacterial nanocellulose (BNC) is becoming increasingly popular owing to its environmentally friendly properties. Based on this benefit of BNC production, researchers have also begun to examine the capacity for cellulose production through microbial hosts. Indeed, several research groups have developed processes for BNC production, and many studies have been published to date, with the goal of developing methods for large-scale production. During BNC bioproduction, the culture medium represents approximately 30 % of the total cost. Therefore, one important and challenging aspect of the fermentation process is identification of a new cost-effective culture medium that can facilitate the production of high yields within short periods of time, thereby improving BNC production and permitting application of BNC in the biotechnological, medical, pharmaceutical, and food industries. In this review, we addressed different aspects of BNC production, including types of fermentation processes and culture media, with the aim of demonstrating the importance of these parameters.
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20
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Zhang S, Winestrand S, Chen L, Li D, Jönsson LJ, Hong F. Tolerance of the nanocellulose-producing bacterium Gluconacetobacter xylinus to lignocellulose-derived acids and aldehydes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:9792-9. [PMID: 25186182 DOI: 10.1021/jf502623s] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Lignocellulosic biomass serves as a potential alternative feedstock for production of bacterial nanocellulose (BNC), a high-value-added product of bacteria such as Gluconacetobacter xylinus. The tolerance of G. xylinus to lignocellulose-derived inhibitors (formic acid, acetic acid, levulinic acid, furfural, and 5-hydroxymethylfurfural) was investigated. Whereas 100 mM formic acid completely suppressed the metabolism of G. xylinus, 250 mM of either acetic acid or levulinic acid still allowed glucose metabolism and BNC production to occur. Complete suppression of glucose utilization and BNC production was observed after inclusion of 20 and 30 mM furfural and 5-hydroxymethylfurfural, respectively. The bacterium oxidized furfural and 5-hydroxymethylfurfural to furoic acid and 5-hydroxymethyl-2-furoic acid, respectively. The highest yields observed were 88% for furoic acid/furfural and 76% for 5-hydroxymethyl-2-furoic acid/5-hydroxymethylfurfural. These results are the first demonstration of the capability of G. xylinus to tolerate lignocellulose-derived inhibitors and to convert furan aldehydes.
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Affiliation(s)
- Shuo Zhang
- China-Sweden Associated Research Laboratory in Industrial Biotechnology and ‡Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering and Biotechnology, and #School of Environmental Science and Engineering, Donghua University , Shanghai 201620, China
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