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El-Sheekh M, Elshobary M, Abdullah E, Abdel-Basset R, Metwally M. Application of a novel biological-nanoparticle pretreatment to Oscillatoria acuminata biomass and coculture dark fermentation for improving hydrogen production. Microb Cell Fact 2023; 22:34. [PMID: 36814252 PMCID: PMC9948338 DOI: 10.1186/s12934-023-02036-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Energy is the basis and assurance for a world's stable development; however, as traditional non-renewable energy sources deplete, the development and study of renewable clean energy have emerged. Using microalgae as a carbon source for anaerobic bacteria to generate biohydrogen is a clean energy generation system that both local and global peers see as promising. RESULTS Klebsiella pneumonia, Enterobacter cloacae, and their coculture were used to synthesize biohydrogen using Oscillatoria acuminata biomass via dark fermentation. The total carbohydrate content in O. acuminata was 237.39 mg/L. To enhance the content of fermentable reducing sugars, thermochemical, biological, and biological with magnesium zinc ferrite nanoparticles (Mg-Zn Fe2O4-NPs) pretreatments were applied. Crude hydrolytic enzymes extracted from Trichoderma harzianum of biological pretreatment were enhanced by Mg-Zn Fe2O4-NPs and significantly increased reducing sugars (230.48 mg/g) four times than thermochemical pretreatment (45.34 mg/g). K. pneumonia demonstrated a greater accumulated hydrogen level (1022 mLH2/L) than E. cloacae (813 mLH2/L), while their coculture showed superior results (1520 mLH2/L) and shortened the production time to 48 h instead of 72 h in single culture pretreatments. Biological pretreatment + Mg-Zn Fe2O4 NPs using coculture significantly stimulated hydrogen yield (3254 mLH2/L), hydrogen efficiency)216.9 mL H2/g reducing sugar( and hydrogen production rate (67.7 mL/L/h) to the maximum among all pretreatments. CONCLUSION These results confirm the effectiveness of biological treatments + Mg-Zn Fe2O4-NPs and coculture dark fermentation in upregulating biohydrogen production.
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Affiliation(s)
- Mostafa El-Sheekh
- grid.412258.80000 0000 9477 7793Department of Botany, Faculty of Science, Tanta University, Tanta, 31527 Egypt
| | - Mostafa Elshobary
- Department of Botany, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Eman Abdullah
- grid.412258.80000 0000 9477 7793Department of Botany, Faculty of Science, Tanta University, Tanta, 31527 Egypt
| | - Refat Abdel-Basset
- grid.252487.e0000 0000 8632 679XBotany and Microbiology Department, Faculty of Science, Assuit University, Assuit, Egypt
| | - Metwally Metwally
- grid.412258.80000 0000 9477 7793Department of Botany, Faculty of Science, Tanta University, Tanta, 31527 Egypt
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Bordignon SE, da Silva Delabona P, Lima D, Perrone O, da Silva Souza MG, Santos AS, da Cruz Pradella JG, Boscolo M, Gomes E, da Silva R. Induction of fungal cellulolytic enzymes using sugarcane bagasse and xylose-rich liquor as substrates. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2020. [DOI: 10.1007/s43153-020-00055-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Druzhinina IS, Chenthamara K, Zhang J, Atanasova L, Yang D, Miao Y, Rahimi MJ, Grujic M, Cai F, Pourmehdi S, Salim KA, Pretzer C, Kopchinskiy AG, Henrissat B, Kuo A, Hundley H, Wang M, Aerts A, Salamov A, Lipzen A, LaButti K, Barry K, Grigoriev IV, Shen Q, Kubicek CP. Massive lateral transfer of genes encoding plant cell wall-degrading enzymes to the mycoparasitic fungus Trichoderma from its plant-associated hosts. PLoS Genet 2018; 14:e1007322. [PMID: 29630596 PMCID: PMC5908196 DOI: 10.1371/journal.pgen.1007322] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 04/19/2018] [Accepted: 03/20/2018] [Indexed: 01/01/2023] Open
Abstract
Unlike most other fungi, molds of the genus Trichoderma (Hypocreales, Ascomycota) are aggressive parasites of other fungi and efficient decomposers of plant biomass. Although nutritional shifts are common among hypocrealean fungi, there are no examples of such broad substrate versatility as that observed in Trichoderma. A phylogenomic analysis of 23 hypocrealean fungi (including nine Trichoderma spp. and the related Escovopsis weberi) revealed that the genus Trichoderma has evolved from an ancestor with limited cellulolytic capability that fed on either fungi or arthropods. The evolutionary analysis of Trichoderma genes encoding plant cell wall-degrading carbohydrate-active enzymes and auxiliary proteins (pcwdCAZome, 122 gene families) based on a gene tree / species tree reconciliation demonstrated that the formation of the genus was accompanied by an unprecedented extent of lateral gene transfer (LGT). Nearly one-half of the genes in Trichoderma pcwdCAZome (41%) were obtained via LGT from plant-associated filamentous fungi belonging to different classes of Ascomycota, while no LGT was observed from other potential donors. In addition to the ability to feed on unrelated fungi (such as Basidiomycota), we also showed that Trichoderma is capable of endoparasitism on a broad range of Ascomycota, including extant LGT donors. This phenomenon was not observed in E. weberi and rarely in other mycoparasitic hypocrealean fungi. Thus, our study suggests that LGT is linked to the ability of Trichoderma to parasitize taxonomically related fungi (up to adelphoparasitism in strict sense). This may have allowed primarily mycotrophic Trichoderma fungi to evolve into decomposers of plant biomass. Individual fungi rely on particular host organisms or substrates for their nutrition. Therefore, the genomes of fungi feeding on plant biomass necessarily contain genes encoding plant cell wall-degrading enzymes, while animal parasites may depend on proteolytic activity. Molds in the genus Trichoderma (Ascomycota) display a unique nutritional versatility. They can feed on other fungi, attack animals, and degrade plant debris. The later property is so efficient that one species (T. reesei) is commercially used for the production of cellulolytic enzymes required for making biofuels and other industry. In this work, we have investigated the evolution of proteins required for plant cell wall degradation in nine Trichoderma genomes and found an unprecedented number of lateral gene transfer (LGT) events for genes encoding these enzymes. Interestingly, the transfers specifically occurred from Ascomycota molds that feed on plants. We detected no cases of LGT from other fungi (e.g., mushrooms or wood-rotting fungi from Basidiomycota) that are frequent hosts of Trichoderma. Therefore, we propose that LGT may be linked to the ability of Trichoderma to parasitize on related organisms. This is a characteristic ecological trait that distinguishes Trichoderma from other mycoparasitic fungi. In this report, we demonstrate that the lateral transfer of genes may result in a profound nutritional expansion and contribute to the emergence of a generalist capable of feeding on organic matter of any origin.
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Affiliation(s)
- Irina S. Druzhinina
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
- * E-mail: (ISD); (QS)
| | - Komal Chenthamara
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
| | - Jian Zhang
- Jiangsu Provincial Key Lab of Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing, China
| | - Lea Atanasova
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
| | - Dongqing Yang
- Jiangsu Provincial Key Lab of Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing, China
| | - Youzhi Miao
- Jiangsu Provincial Key Lab of Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing, China
| | - Mohammad J. Rahimi
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
| | - Marica Grujic
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
| | - Feng Cai
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
- Jiangsu Provincial Key Lab of Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing, China
| | - Shadi Pourmehdi
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
| | - Kamariah Abu Salim
- Environmental and Life Sciences, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam
| | - Carina Pretzer
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
| | - Alexey G. Kopchinskiy
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
| | - Bernard Henrissat
- Architecture et Fonction des Macromolécules Biologiques, CNRS, Aix-Marseille Université, Marseille, France
- INRA, USC 1408 AFMB, Marseille, France
- Department of Biological Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Alan Kuo
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
| | - Hope Hundley
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
| | - Mei Wang
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
| | - Andrea Aerts
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
| | - Asaf Salamov
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
| | - Anna Lipzen
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
| | - Kurt LaButti
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
| | - Kerrie Barry
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
| | - Igor V. Grigoriev
- US Department of Energy Joint Genome Institute, Walnut Creek, CA, United States of America
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA, United States of America
| | - Qirong Shen
- Jiangsu Provincial Key Lab of Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing, China
- * E-mail: (ISD); (QS)
| | - Christian P. Kubicek
- Microbiology and Applied Genomics Group, Research Area Biochemical Technology, Institute of Chemical, Environmental & Bioscience Engineering, TU Wien, Vienna, Austria
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Shang T, Si D, Zhang D, Liu X, Zhao L, Hu C, Fu Y, Zhang R. Enhancement of thermoalkaliphilic xylanase production by Pichia pastoris through novel fed-batch strategy in high cell-density fermentation. BMC Biotechnol 2017. [PMID: 28633643 PMCID: PMC5479016 DOI: 10.1186/s12896-017-0361-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Xylanase degrades xylan into monomers of various sizes by catalyzing the endohydrolysis of the 1,4-β-D-xylosidic linkage randomly, possessing potential in wide industrial applications. Most of xylanases are susceptible to be inactive when suffering high temperature and high alkaline process. Therefore, it is necessary to develop a high amount of effective thermoalkaliphilic xylanases. This study aims to enhance thermoalkaliphilic xylanase production in Pichia pastoris through fermentation parameters optimization and novel efficient fed-batch strategy in high cell-density fermentation. RESULTS Recombinant xylanase activity increased 12.2%, 7.4%, 12.0% and 9.9% by supplementing the Pichia pastoris culture with 20 g/L wheat bran, 5 mg/L L-histidine, 10 mg/L L-tryptophan and 10 mg/L L-methionine in shake flasks, respectively. Investigation of nutritional fermentation parameters, non-nutritional fermentation parameters and feeding strategies in 1 L bioreactor and 1 L shake flask revealed that glycerol and methanol feeding strategies were the critical factors for high cell density and xylanase activity. In 50 L bioreactor, a novel glycerol feeding strategy and a four-stage methanol feeding strategy with a stepwise increase in feeding rate were developed to enhance recombinant xylanase production. In the initial 72 h of methanol induction, the linear dependence of xylanase activity on methanol intake was observed (R2 = 0.9726). The maximum xylanase activity was predicted to be 591.2 U/mL, while the actual maximum xylanase activity was 560.7 U/mL, which was 7.05 times of that in shake flask. Recombinant xylanase retained 82.5% of its initial activity after pre-incubation at 80 °C for 50 min (pH 8.0), and it exhibited excellent stability in the broad temperature (60-80 °C) and pH (pH 8.0-11.0) ranges. CONCLUSIONS Efficient glycerol and methanol fed-batch strategies resulting in desired cell density and xylanase activity should be applied in other P. pastoris fermentation for other recombinant proteins production. Recombinant xylanases with high pH- and thermal-stability showed potential in various industrial applications.
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Affiliation(s)
- Tingting Shang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Dayong Si
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Dongyan Zhang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Xuhui Liu
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Longmei Zhao
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China.,College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471003, China
| | - Cong Hu
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Yu Fu
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Rijun Zhang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, China.
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Costa PDS, Robl D, Costa IC, Lima DJDS, Costa AC, Pradella JGDC. Potassium biphthalate buffer for pH control to optimize glycosyl hydrolase production in shake flasks using filamentous fungi. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2017. [DOI: 10.1590/0104-6632.20170342s20150522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Patrícia dos Santos Costa
- Brazilian Centre of Research in Energy and Materials (CNPEM), Brazil; State University of Campinas, Campinas, Brazil
| | - Diogo Robl
- Brazilian Centre of Research in Energy and Materials (CNPEM), Brazil; University of São Paulo (USP), Brazil
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6
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Enhancement of Penicillium echinulatum glycoside hydrolase enzyme complex. ACTA ACUST UNITED AC 2016; 43:627-39. [DOI: 10.1007/s10295-016-1746-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 02/05/2016] [Indexed: 01/01/2023]
Abstract
Abstract
The enhancement of enzyme complex produced by Penicillium echinulatum grown in several culture media components (bagasse sugarcane pretreated by various methods, soybean meal, wheat bran, sucrose, and yeast extract) was studied to increment FPase, xylanase, pectinase, and β-glucosidase enzyme activities. The present results indicated that culture media composed with 10 g/L of the various bagasse pretreatment methods did not have any substantial influence with respect to the FPase, xylanase, and β-glucosidase attained maximum values of, respectively, 2.68 FPU/mL, 2.04, and 115.4 IU/mL. On the other hand, proposed culture media to enhance β-glucosidase production composed of 10 g/L steam-exploded bagasse supplemented with soybean flour 5.0 g/L, yeast extract 1.0 g/L, and sucrose 10.0 g/L attained, respectively, 3.19 FPU/mL and 3.06 IU/mL while xylanase was maintained at the same level. The proteomes obtained from the optimized culture media for enhanced FPase, xylanase, pectinase, and β-glucosidase production were analyzed using mass spectrometry and a panel of GH enzyme activities against 16 different substrates. Culture medium designed to enhance β-glucosidase activity achieved higher enzymatic activities values (13 measured activities), compared to the culture media for FPase/pectinase (9 measured activities) and xylanase (7 measured activities), when tested against the 16 substrates. Mass spectrometry analyses of secretome showed a consistent result and the greatest number of spectral counts of Cazy family enzymes was found in designed β-glucosidase culture medium, followed by FPase/pectinase and xylanase. Most of the Cazy identified protein was cellobiohydrolase (GH6 and GH7), endoglucanase (GH5), and endo-1,4-β-xylanase (GH10). Enzymatic hydrolysis of hydrothermally pretreated sugarcane bagasse performed with β-glucosidase enhanced cocktail achieved 51.4 % glucose yield with 10 % w/v insoluble solids at enzyme load of 15 FPU/g material. Collectively the results demonstrated that it was possible to rationally modulate the GH activity of the enzymatic complex secreted by P. echinulatum using adjustment of the culture medium composition. The proposed strategy may contribute to increase enzymatic hydrolysis of lignocellulosic materials.
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Delabona PDS, Lima DJ, Robl D, Rabelo SC, Farinas CS, Pradella JGDC. Enhanced cellulase production by Trichoderma harzianum by cultivation on glycerol followed by induction on cellulosic substrates. J Ind Microbiol Biotechnol 2016; 43:617-26. [PMID: 26883662 DOI: 10.1007/s10295-016-1744-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 12/12/2015] [Indexed: 12/22/2022]
Abstract
The use of glycerol obtained as an intermediate of the biodiesel manufacturing process as carbon source for microbial growth is a potential alternative strategy for the production of enzymes and other high-value bioproducts. This work evaluates the production of cellulase enzymes using glycerol for high cell density growth of Trichoderma harzianum followed by induction with a cellulosic material. Firstly, the influence of the carbon source used in the pre-culture step was investigated in terms of total protein secretion and fungal morphology. Enzymatic productivity was then determined for cultivation strategies using different types and concentrations of carbon source, as well as different feeding procedures (batch and fed-batch). The best strategy for cellulase production was then further studied on a larger scale using a stirred tank bioreactor. The proposed strategy for cellulase production, using glycerol to achieve high cell density growth followed by induction with pretreated sugarcane bagasse, achieved enzymatic activities up to 2.27 ± 0.37 FPU/mL, 106.40 ± 8.87 IU/mL, and 9.04 ± 0.39 IU/mL of cellulase, xylanase, and β-glucosidase, respectively. These values were 2 times higher when compared to the control experiments using glucose instead of glycerol. This novel strategy proved to be a promising approach for improving cellulolytic enzymes production, and could potentially contribute to adding value to biomass within the biofuels sector.
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Affiliation(s)
- Priscila da Silva Delabona
- Brazilian Bioethanol Science and Technology Laboratory, CTBE, Pólo II de Alta Tecnologia, Rua Giuseppe Maximo Scolfaro 10000, Caixa Postal 6192, Campinas, SP, CEP 13083-970, Brazil. .,Graduate Program of Biotechnology, Federal University of São Carlos, São Carlos, SP, 13565-905, Brazil.
| | - Deise Juliana Lima
- Brazilian Bioethanol Science and Technology Laboratory, CTBE, Pólo II de Alta Tecnologia, Rua Giuseppe Maximo Scolfaro 10000, Caixa Postal 6192, Campinas, SP, CEP 13083-970, Brazil
| | - Diogo Robl
- Brazilian Bioethanol Science and Technology Laboratory, CTBE, Pólo II de Alta Tecnologia, Rua Giuseppe Maximo Scolfaro 10000, Caixa Postal 6192, Campinas, SP, CEP 13083-970, Brazil
| | - Sarita Cândida Rabelo
- Brazilian Bioethanol Science and Technology Laboratory, CTBE, Pólo II de Alta Tecnologia, Rua Giuseppe Maximo Scolfaro 10000, Caixa Postal 6192, Campinas, SP, CEP 13083-970, Brazil
| | - Cristiane Sanchez Farinas
- Graduate Program of Biotechnology, Federal University of São Carlos, São Carlos, SP, 13565-905, Brazil.,Embrapa Instrumentation, Rua XV de Novembro 1452, São Carlos, SP, CEP 13560-970, Brazil
| | - José Geraldo da Cruz Pradella
- Brazilian Bioethanol Science and Technology Laboratory, CTBE, Pólo II de Alta Tecnologia, Rua Giuseppe Maximo Scolfaro 10000, Caixa Postal 6192, Campinas, SP, CEP 13083-970, Brazil.,Graduate Program of Biotechnology, Federal University of São Carlos, São Carlos, SP, 13565-905, Brazil
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8
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Goh YK, Marzuki NF, Tan SY, Tan SS, Tung HJ, Goh YK, Goh KJ. Experimental mixture design as a tool to optimize the growth of various Ganoderma species cultivated on media with different sugars. Mycology 2016; 7:36-44. [PMID: 30123614 PMCID: PMC6059077 DOI: 10.1080/21501203.2015.1137985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 12/23/2015] [Indexed: 11/01/2022] Open
Abstract
The influence of different medium components (glucose, sucrose, and fructose) on the growth of different Ganoderma isolates and species was investigated using mixture design. Ten sugar combinations based on three simple sugars were generated with two different concentrations, namely 3.3% and 16.7%, which represented low and high sugar levels, respectively. The media were adjusted to either pH 5 or 8. Ganoderma isolates (two G. boninense from oil palm, one Ganoderma species from coconut palm, G. lingzhi, and G. australe from tower tree) grew faster at pH 8. Ganoderma lingzhi proliferated at the slowest rate compared to all other tested Ganoderma species in all the media studied. However, G. boninense isolates grew the fastest. Different Ganoderma species were found to have different sugar preferences. This study illustrated that the mixture design can be used to determine the optimal combinations of sugar or other nutrient/chemical components of media for fungal growth.
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Affiliation(s)
- Yit Kheng Goh
- Advanced Agriecological Research Sdn Bhd, No. 11 Jalan Teknologi 3/6, Taman Sains Selangor 1, Kota Damansara, Petaling Jaya, Selangor Darul Ehsan47810, Malaysia
| | - Nurul Fadhilah Marzuki
- Advanced Agriecological Research Sdn Bhd, No. 11 Jalan Teknologi 3/6, Taman Sains Selangor 1, Kota Damansara, Petaling Jaya, Selangor Darul Ehsan47810, Malaysia
| | - Suet Yee Tan
- Advanced Agriecological Research Sdn Bhd, No. 11 Jalan Teknologi 3/6, Taman Sains Selangor 1, Kota Damansara, Petaling Jaya, Selangor Darul Ehsan47810, Malaysia
| | - Swee Sian Tan
- Advanced Agriecological Research Sdn Bhd, No. 11 Jalan Teknologi 3/6, Taman Sains Selangor 1, Kota Damansara, Petaling Jaya, Selangor Darul Ehsan47810, Malaysia
| | - Hun Jiat Tung
- Applied Agricultural Resources Sdn Bhd (AAR), University of Nottingham Malaysia Campus (UNMC) Biotechnology Research Centre, Jalan Broga, Semenyih, Selangor43500, Malaysia
| | - You Keng Goh
- Advanced Agriecological Research Sdn Bhd, No. 11 Jalan Teknologi 3/6, Taman Sains Selangor 1, Kota Damansara, Petaling Jaya, Selangor Darul Ehsan47810, Malaysia
| | - Kah Joo Goh
- Advanced Agriecological Research Sdn Bhd, No. 11 Jalan Teknologi 3/6, Taman Sains Selangor 1, Kota Damansara, Petaling Jaya, Selangor Darul Ehsan47810, Malaysia
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A. L. Rocha V, N. Maeda R, Pereira N, F. Kern M, Elias L, Simister R, Steele-King C, Gómez LD, McQueen-Mason SJ. Characterization of the cellulolytic secretome ofTrichoderma harzianumduring growth on sugarcane bagasse and analysis of the activity boosting effects of swollenin. Biotechnol Prog 2016; 32:327-36. [DOI: 10.1002/btpr.2217] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/02/2015] [Indexed: 01/21/2023]
Affiliation(s)
- Vanessa A. L. Rocha
- LADEBIO, Centre of Biofuels, Oil and its Derivatives, School of Chemistry; Department of Biochemical Engineering, Centre of Technology, Federal University of Rio De Janeiro; Rio De Janeiro 21941-909 Brazil
| | - Roberto N. Maeda
- LADEBIO, Centre of Biofuels, Oil and its Derivatives, School of Chemistry; Department of Biochemical Engineering, Centre of Technology, Federal University of Rio De Janeiro; Rio De Janeiro 21941-909 Brazil
| | - Nei Pereira
- LADEBIO, Centre of Biofuels, Oil and its Derivatives, School of Chemistry; Department of Biochemical Engineering, Centre of Technology, Federal University of Rio De Janeiro; Rio De Janeiro 21941-909 Brazil
| | - Marcelo F. Kern
- MasonCNAP, Dept. of Biology; University of York; Wentworth Way, York YO10 5DD U.K
| | - Luisa Elias
- MasonCNAP, Dept. of Biology; University of York; Wentworth Way, York YO10 5DD U.K
| | - Rachael Simister
- MasonCNAP, Dept. of Biology; University of York; Wentworth Way, York YO10 5DD U.K
| | - Clare Steele-King
- MasonCNAP, Dept. of Biology; University of York; Wentworth Way, York YO10 5DD U.K
| | - Leonardo D. Gómez
- MasonCNAP, Dept. of Biology; University of York; Wentworth Way, York YO10 5DD U.K
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Gelain L, da Cruz Pradella JG, da Costa AC. Mathematical modeling of enzyme production using Trichoderma harzianum P49P11 and sugarcane bagasse as carbon source. BIORESOURCE TECHNOLOGY 2015; 198:101-107. [PMID: 26378961 DOI: 10.1016/j.biortech.2015.08.148] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 08/22/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
A mathematical model to describe the kinetics of enzyme production by the filamentous fungus Trichoderma harzianum P49P11 was developed using a low cost substrate as main carbon source (pretreated sugarcane bagasse). The model describes the cell growth, variation of substrate concentration and production of three kinds of enzymes (cellulases, beta-glucosidase and xylanase) in different sugarcane bagasse concentrations (5; 10; 20; 30; 40 gL(-1)). The 10 gL(-1) concentration was used to validate the model and the other to parameter estimation. The model for enzyme production has terms implicitly representing induction and repression. Substrate variation was represented by a simple degradation rate. The models seem to represent well the kinetics with a good fit for the majority of the assays. Validation results indicate that the models are adequate to represent the kinetics for a biotechnological process.
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Affiliation(s)
- Lucas Gelain
- State University of Campinas, Avenida Albert Einstein 500, CEP 13083-852 Campinas, São Paulo, Brazil.
| | - José Geraldo da Cruz Pradella
- Brazilian Bioethanol Science and Technology Laboratory - CTBE, Rua Giuseppe Maximo Scolfaro 10000, Pólo II de Alta Tecnologia, Caixa Postal 6192, CEP 13083-852 Campinas, São Paulo, Brazil
| | - Aline Carvalho da Costa
- State University of Campinas, Avenida Albert Einstein 500, CEP 13083-852 Campinas, São Paulo, Brazil
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Vasconcellos V, Tardioli P, Giordano R, Farinas C. Production efficiency versus thermostability of (hemi)cellulolytic enzymatic cocktails from different cultivation systems. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.07.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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de Castro RJS, Ohara A, Nishide TG, Bagagli MP, Gonçalves Dias FF, Sato HH. A versatile system based on substrate formulation using agroindustrial wastes for protease production by Aspergillus niger under solid state fermentation. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2015.08.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Simplex centroid mixture design to improve l -asparaginase production in solid-state fermentation using agroindustrial wastes. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2015.09.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Robl D, Costa PDS, Büchli F, Lima DJDS, Delabona PDS, Squina FM, Pimentel IC, Padilla G, Pradella JGDC. Enhancing of sugar cane bagasse hydrolysis by Annulohypoxylon stygium glycohydrolases. BIORESOURCE TECHNOLOGY 2015; 177:247-254. [PMID: 25496945 DOI: 10.1016/j.biortech.2014.11.082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 06/04/2023]
Abstract
The aim of this study was to develop a bioprocess for the production of β-glucosidase and pectinase from the fungus Annulohypoxylon stygium DR47. Media optimization and bioreactor cultivation using citrus bagasse and soybean bran were explored and revealed a maximum production of 6.26 U/mL of pectinase at pH 4.0 and 10.13 U/mL of β-glucosidase at pH 5.0. In addition, the enzymes extracts were able to replace partially Celluclast 1.5L in sugar cane bagasse hydrolysis. Proteomic analysis from A. stygium cultures revealed accessory enzymes, mainly belong to the families GH3 and GH54, that would support enhancement of commercial cocktail saccharification yields. This is the first report describing bioreactor optimization for enzyme production from A. stygium with a view for more efficient degradation of sugar cane bagasse.
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Affiliation(s)
- Diogo Robl
- Institute of Biomedical Sciences, University of São Paulo (USP), Avenida Lineu Prestes 1374, CEP 05508-900 São Paulo, Brazil; Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Centre of Research in Energy and Materials (CNPEM), Rua Giuseppe Maximo Scolfaro 10000, Pólo II de Alta Tecnologia, CEP 13083-970 Campinas, São Paulo, Brazil.
| | - Patrícia dos Santos Costa
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Centre of Research in Energy and Materials (CNPEM), Rua Giuseppe Maximo Scolfaro 10000, Pólo II de Alta Tecnologia, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Fernanda Büchli
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Centre of Research in Energy and Materials (CNPEM), Rua Giuseppe Maximo Scolfaro 10000, Pólo II de Alta Tecnologia, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Deise Juliana da Silva Lima
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Centre of Research in Energy and Materials (CNPEM), Rua Giuseppe Maximo Scolfaro 10000, Pólo II de Alta Tecnologia, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Priscila da Silva Delabona
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Centre of Research in Energy and Materials (CNPEM), Rua Giuseppe Maximo Scolfaro 10000, Pólo II de Alta Tecnologia, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Fabio Marcio Squina
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Centre of Research in Energy and Materials (CNPEM), Rua Giuseppe Maximo Scolfaro 10000, Pólo II de Alta Tecnologia, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Ida Chapaval Pimentel
- Department of Basic Pathology, Federal University of Paraná (UFPR), CEP 81531-980 Curitiba, Paraná, Brazil
| | - Gabriel Padilla
- Institute of Biomedical Sciences, University of São Paulo (USP), Avenida Lineu Prestes 1374, CEP 05508-900 São Paulo, Brazil
| | - José Geraldo da Cruz Pradella
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Centre of Research in Energy and Materials (CNPEM), Rua Giuseppe Maximo Scolfaro 10000, Pólo II de Alta Tecnologia, CEP 13083-970 Campinas, São Paulo, Brazil
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Effective bioconversion of sophoricoside to genistein from Fructus sophorae using immobilized Aspergillus niger and Yeast. World J Microbiol Biotechnol 2014; 31:187-97. [PMID: 25392205 DOI: 10.1007/s11274-014-1777-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 11/10/2014] [Indexed: 10/24/2022]
Abstract
In this study, sophoricoside from Fructus sophorae was highly bioconversed to genistein by co-immobilized Aspergillus niger and Yeast. Bioconversion conditions for genistein were optimized with single-factor experiments. The optimal conditions were as follows: microbial concentration 1.5 × 10(7) cells/mL, wet weight of microorganisms beads 10.0 g/g material, pH 5, ratio of liquid to solid 25:1 (mL/g), temperature 32 °C and time 24 h. Under these conditions, a 34.45-fold increase in production of genistein was observed with a bioreactor. Moreover, the antioxidant activities of the extracts from the fermented and untreated F. sophorae were 0.287 ± 0.11, 0.384 ± 0.08 mg/mL (IC50) and 1.84 ± 0.13, 1.28 ± 0.25 mmol Fe(II)/g, according to the DPPH test and FRAP assay, respectively. The results indicated that the method described in the current work were valuable procedure for the production of genistein, which is of most importance for industrial scale applications as well as food industry.
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Zhu H, Sun J, Tian B, Wang H. A novel stirrer design and its application in submerged fermentation of the edible fungus Pleurotus ostreatus. Bioprocess Biosyst Eng 2014; 38:509-16. [PMID: 25234512 DOI: 10.1007/s00449-014-1290-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Accepted: 09/16/2014] [Indexed: 11/26/2022]
Abstract
In this study, a straight diagonal-pitched blade stirrer was designed, built and characterized in a 5-L fermenter. Compared with the six straight blade Rushton turbine, the power consumption of the new stirrer is lower at a given speed under conditions of no ventilation. The oxygen transference is poorer at the same agitation speed in the cultivation conditions and scales investigated, which confirms that the shear stress of the new stirrer is lower and the gas dispersion is weaker. The new stirrer was installed in a 5-L bioreactor and evaluated in submerged fermentation of the edible fungus Pleurotus ostreatus. The results showed that the maximum dry weight of mycelium is increased by 47 % and reached 7.47 g/L, and the maximum laccase activity is increased by 15 % up to 2,277 U/L. Glucose consumption was also found to be relatively faster. The power consumption is 2.8 % lower than that of the Rushton turbine.
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Affiliation(s)
- Hu Zhu
- Centre for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China,
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The capability of endophytic fungi for production of hemicellulases and related enzymes. BMC Biotechnol 2013; 13:94. [PMID: 24175970 PMCID: PMC3840621 DOI: 10.1186/1472-6750-13-94] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 09/12/2013] [Indexed: 11/22/2022] Open
Abstract
Background There is an imperative necessity for alternative sources of energy able to reduce the world dependence of fossil oil. One of the most successful options is ethanol obtained mainly from sugarcane and corn fermentation. The foremost residue from sugarcane industry is the bagasse, a rich lignocellulosic raw material uses for the production of ethanol second generation (2G). New cellulolytic and hemicellulytic enzymes are needed, in order to optimize the degradation of bagasse and production of ethanol 2G. Results The ability to produce hemicellulases and related enzymes, suitable for lignocellulosic biomass deconstruction, was explored using 110 endophytic fungi and 9 fungi isolated from spoiled books in Brazil. Two initial selections were performed, one employing the esculin gel diffusion assay, and the other by culturing on agar plate media with beechwood xylan and liquor from the hydrothermal pretreatment of sugar cane bagasse. A total of 56 isolates were then grown at 29°C on steam-exploded delignified sugar cane bagasse (DEB) plus soybean bran (SB) (3:1), with measurement of the xylanase, pectinase, β-glucosidase, CMCase, and FPase activities. Twelve strains were selected, and their enzyme extracts were assessed using different substrates. Finally, the best six strains were grown under xylan and pectin, and several glycohydrolases activities were also assessed. These strains were identified morphologically and by sequencing the internal transcribed spacer (ITS) regions and the partial β-tubulin gene (BT2). The best six strains were identified as Aspergillus niger DR02, Trichoderma atroviride DR17 and DR19, Alternaria sp. DR45, Annulohypoxylon stigyum DR47 and Talaromyces wortmannii DR49. These strains produced glycohydrolases with different profiles, and production was highly influenced by the carbon sources in the media. Conclusions The selected endophytic fungi Aspergillus niger DR02, Trichoderma atroviride DR17 and DR19, Alternaria sp. DR45, Annulohypoxylon stigyum DR47 and Talaromyces wortmannii DR49 are excellent producers of hydrolytic enzymes to be used as part of blends to decompose sugarcane biomass at industrial level.
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