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Statistical optimization of media components for production of extracellular lipase from edible mushroom Cantharellus cibarius. Biol Futur 2022; 73:315-325. [DOI: 10.1007/s42977-022-00131-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/28/2022] [Indexed: 11/25/2022]
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Šuchová K, Fehér C, Ravn JL, Bedő S, Biely P, Geijer C. Cellulose- and xylan-degrading yeasts: Enzymes, applications and biotechnological potential. Biotechnol Adv 2022; 59:107981. [DOI: 10.1016/j.biotechadv.2022.107981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 01/23/2023]
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Lara CA, Santos RO, Cadete RM, Ferreira C, Marques S, Gírio F, Oliveira ES, Rosa CA, Fonseca C. Identification and characterisation of xylanolytic yeasts isolated from decaying wood and sugarcane bagasse in Brazil. Antonie van Leeuwenhoek 2014; 105:1107-19. [PMID: 24748334 DOI: 10.1007/s10482-014-0172-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 04/04/2014] [Indexed: 11/28/2022]
Abstract
In this study, yeasts associated with lignocellulosic materials in Brazil, including decaying wood and sugarcane bagasse, were isolated, and their ability to produce xylanolytic enzymes was investigated. A total of 358 yeast isolates were obtained, with 198 strains isolated from decaying wood and 160 strains isolated from decaying sugarcane bagasse samples. Seventy-five isolates possessed xylanase activity in solid medium and were identified as belonging to nine species: Candida intermedia, C. tropicalis, Meyerozyma guilliermondii, Scheffersomyces shehatae, Sugiyamaella smithiae, Cryptococcus diffluens, Cr. heveanensis, Cr. laurentii and Trichosporon mycotoxinivorans. Twenty-one isolates were further screened for total xylanase activity in liquid medium with xylan, and five xylanolytic yeasts were selected for further characterization, which included quantitative analysis of growth in xylan and xylose and xylanase and β-D-xylosidase activities. The yeasts showing the highest growth rate and cell density in xylan, Cr. laurentii UFMG-HB-48, Su. smithiae UFMG-HM-80.1 and Sc. shehatae UFMG-HM-9.1a, were, simultaneously, those exhibiting higher xylanase activity. Xylan induced the highest level of (extracellular) xylanase activity in Cr. laurentii UFMG-HB-48 and the highest level of (intracellular, extracellular and membrane-associated) β-D-xylosidase activity in Su. smithiae UFMG-HM-80.1. Also, significant β-D-xylosidase levels were detected in xylan-induced cultures of Cr. laurentii UFMG-HB-48 and Sc. shehatae UFMG-HM-9.1a, mainly in extracellular and intracellular spaces, respectively. Under xylose induction, Cr. laurentii UFMG-HB-48 showed the highest intracellular β-D-xylosidase activity among all the yeast tested. C. tropicalis UFMG-HB 93a showed its higher (intracellular) β-D-xylosidase activity under xylose induction and higher at 30 °C than at 50 °C. This study revealed different xylanolytic abilities and strategies in yeasts to metabolise xylan and/or its hydrolysis products (xylo-oligosaccharides and xylose). Xylanolytic yeasts are able to secrete xylanolytic enzymes mainly when induced by xylan and present different strategies (intra- and/or extracellular hydrolysis) for the metabolism of xylo-oligosaccharides. Some of the unique xylanolytic traits identified here should be further explored for their applicability in specific biotechnological processes.
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Affiliation(s)
- Carla A Lara
- Departamento de Alimentos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
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Zhang J, Hu B. Solid-state fermentation of Mortierella isabellina for lipid production from soybean hull. Appl Biochem Biotechnol 2012; 166:1034-46. [PMID: 22198865 DOI: 10.1007/s12010-011-9491-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 12/05/2011] [Indexed: 10/14/2022]
Abstract
Soybean hull, generated from soybean processing, is a lignocellulosic material with limited industrial applications and little market value. This research is exploring a new application of soybean hull to be converted to fungal lipids for biodiesel production through solid-state fermentation. Mortierella isabellina was selected as the oil producer because of its high lipid content at low C/N ratio. Several cultivation factors were investigated, including moisture content, inoculums size, fungal spore age, and nutrient supplements, in an attempt to enhance the lipid production of the solid-state fermentation process. The results showed that lipid production with the increase of the moisture content and the spore age, while decreased as the size of inoculums increased. Nutrients addition (KH₂PO₄ 1.2 mg and MgSO₄ 0.6 mg/g soybean hull) improved the lipid production. The total final lipid reached 47.9 mg lipid from 1 g soybean hull after the conversion, 3.3-fold higher than initial lipid reserve in the soybean hull. The fatty acid profile analysis indicated that fatty acid content consisted of 30.0% of total lipid, and 80.4% of total fatty acid was C16 and C18. Therefore, lipid production from soybean hull is a possible option to enable soybean hull as a new resource for biodiesel production and to enhance the overall oil production from soybeans.
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Affiliation(s)
- Jianguo Zhang
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA
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Yang F, Zhang S, Zhou YJ, Zhu Z, Lin X, Zhao ZK. Characterization of the mitochondrial NAD+-dependent isocitrate dehydrogenase of the oleaginous yeast Rhodosporidium toruloides. Appl Microbiol Biotechnol 2012; 94:1095-105. [DOI: 10.1007/s00253-011-3820-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 12/01/2011] [Accepted: 12/05/2011] [Indexed: 11/30/2022]
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Oguri E, Masaki K, Naganuma T, Iefuji H. Phylogenetic and biochemical characterization of the oil-producing yeast Lipomyces starkeyi. Antonie van Leeuwenhoek 2011; 101:359-68. [DOI: 10.1007/s10482-011-9641-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 08/30/2011] [Indexed: 11/28/2022]
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Tang W, Zhang S, Tan H, Zhao ZK. Molecular cloning and characterization of a malic enzyme gene from the oleaginous yeast Lipomyces starkeyi. Mol Biotechnol 2010; 45:121-8. [PMID: 20217282 DOI: 10.1007/s12033-010-9255-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The malic enzyme-encoding cDNA (GQ372891) from the oleaginous yeast Lipomyces starkeyi AS 2.1560 was isolated, which has an 1719-bp open reading frame flanked by a 290-bp 5' untranslated sequence and a 92-bp 3' untranslated sequence. The proposed gene, LsME1, encoded a protein with 572 amino acid residues. The protein presented 58% sequence identity with the malic enzymes from Yarrowia lipolytica CLIB122 and Aspergillus fumigatus Af293. The LsME1 gene was cloned into the vector pMAL-p4x to express a fusion protein (MBP-LsME1) in Escherichia coli TB1. The fusion protein was purified and then cleaved by Factor Xa to give the recombinant LsME1. This purified enzyme took either NAD(+) or NADP(+) as the coenzyme but preferred NAD(+). The K (m) values for malic acid, NAD(+) and NADP(+) were 0.85 +/- 0.05 mM, 0.34 +/- 0.08 mM, and 7.4 +/- 0.32 mM, respectively, at pH 7.3.
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Affiliation(s)
- Wei Tang
- Dalian Institute of Chemical Physics, CAS, Dalian 116023, People's Republic of China
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Tang W, Zhang S, Wang Q, Tan H, Zhao ZK. The isocitrate dehydrogenase gene of oleaginous yeast Lipomyces starkeyi is linked to lipid accumulation. Can J Microbiol 2009; 55:1062-9. [DOI: 10.1139/w09-063] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The oleaginous yeast Lipomyces starkeyi can accumulate intracellular lipids to over 60% of its cell dry mass under a nitrogen-limited condition. We showed that extracellular and intracellular citrate concentrations of L. starkeyi AS 2.1560 increased and the nicotinamide adenine dinucleotide – isocitrate dehydrogenase (NAD+–IDH) activity decreased at the beginning of the lipid accumulation, suggesting that the attenuation of the NAD+–IDH activity might initiate lipid storage. We next cloned the IDH gene by the methods of degenerate PCR and rapid amplification of cDNA ends. Phylogenetic analyses of the evolutionary relationships among LsIDH1, LsIDH2, and other yeast NAD+–IDHs revealed that the L. starkeyi IDH had a closer relationship with the IDHs of Yarrowia lipolytica . Further real-time PCR analysis showed that the expression levels of both LsIDH1 and LsIDH2 decreased concurrently with the evolution of cellular lipids. Our data should be valuable for understanding the biology of oleaginous yeasts and for further strain engineering of L. starkeyi.
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Affiliation(s)
- Wei Tang
- Division of Biotechnology, Dalian Institute of Chemical Physics CAS, Dalian 116023, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
| | - Sufang Zhang
- Division of Biotechnology, Dalian Institute of Chemical Physics CAS, Dalian 116023, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Wang
- Division of Biotechnology, Dalian Institute of Chemical Physics CAS, Dalian 116023, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
| | - Haidong Tan
- Division of Biotechnology, Dalian Institute of Chemical Physics CAS, Dalian 116023, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zongbao Kent Zhao
- Division of Biotechnology, Dalian Institute of Chemical Physics CAS, Dalian 116023, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
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Screening of Oleaginous Yeast Strains Tolerant to Lignocellulose Degradation Compounds. Appl Biochem Biotechnol 2009; 159:591-604. [DOI: 10.1007/s12010-008-8491-x] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2008] [Accepted: 12/15/2008] [Indexed: 10/21/2022]
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Zhao X, Kong X, Hua Y, Feng B, Zhao Z(K. Medium optimization for lipid production through co-fermentation of glucose and xylose by the oleaginous yeastLipomyces starkeyi. EUR J LIPID SCI TECH 2008. [DOI: 10.1002/ejlt.200700224] [Citation(s) in RCA: 204] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Tsujibo H, Sakamoto T, Nishino N, Hasegawa T, Inamori Y. Purification and properties of three types of xylanases produced by an alkalophilic actinomycete. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2672.1990.tb01530.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Rahman AKMS, Sugitani N, Hatsu M, Takamizawa K. A role of xylanase, alpha-L-arabinofuranosidase, and xylosidase in xylan degradation. Can J Microbiol 2003; 49:58-64. [PMID: 12674349 DOI: 10.1139/w02-114] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Renewable natural resources such as xylans are abundant in many agricultural wastes. Penicillium sp. AHT-1 is a strong producer of xylanolytic enzymes. The sequential activities of its xylanase, alpha-L-arabinofuranosidase, and beta-xylosidase on model hemicellulose oat-spelt xylan was investigated. Optimum production of the enzymes was found in culture containing oat-spelt xylan at 30 degrees C and initial pH 7.0 after 6 days. The enzymes were partially purified by ammonium sulphate fractionation and anion-exchange chromatography on DEAE-Toyopearl 650 S. The apparent molecular mass was 21 kDa, and the protein displayed an "endo" mode of action. The xylanase exhibited glycotansferase activity. It synthesized higher oligosaccharides from the initial substrates, and xylotriose was the shortest unit of substrate transglycosylated. Xylanolytic enzymes (enzyme mixture) produced by this Penicillium sp. interacted cooperatively and sequentially in the hydrolysis of oat-spelt xylan in the following order: alpha-L-arabinofuranosidase --> xylanase --> beta-xylosidase. All three enzymes exhibited optimal activity under the same conditions (temperature, pH, cultivation), indicating that they alone are sufficient to completely depolymerize the test xylan. Results indicate that the xylanolytic enzyme mixture of Penicillium sp. AHT-1 could be useful for bioconversion of xylan-rich plant wastes to value-added products.
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Affiliation(s)
- A K M Shofiqur Rahman
- Department of Bioprocessing, Faculty of Agriculture, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
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Bhatt AK, Bhalla TC, Agrawal HO, Sharma N. Enhanced degradation of gamma-irradiated lignocelluloses by a new xylanolytic Flavobacterium sp. isolated from soil. Lett Appl Microbiol 1992. [DOI: 10.1111/j.1472-765x.1992.tb00708.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tsujibo H, Miyamoto K, Kuda T, Minami K, Sakamoto T, Hasegawa T, Inamori Y. Purification, properties, and partial amino acid sequences of thermostable xylanases from Streptomyces thermoviolaceus OPC-520. Appl Environ Microbiol 1992; 58:371-5. [PMID: 1539982 PMCID: PMC195217 DOI: 10.1128/aem.58.1.371-375.1992] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Two types of xylanases (1,4-beta-D-xylan xylanohydrolase, EC 3.2.1.8) were isolated from the culture filtrate of a thermophilic actinomycete, Streptomyces thermoviolaceus OPC-520. The enzymes (STX-I and STX-II) were purified by chromatography with DEAE-Toyopearl 650 M, CM-Toyopearl 650 M, Sephadex G-75, Phenyl-Toyopearl 650 M, and Mono Q HR. The purified enzymes showed single bands on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The molecular weights of STX-I and STX-II were 54,000 and 33,000, respectively. The pIs were 4.2 (STX-I) and 8.0 (STX-II). The optimum pH levels for the activity of STX-I and STX-II were pH 7.0. The optimum temperature for the activity of STX-I was 70 degrees C, and that for the activity of STX-II was 60 degrees C. The enzymes were completely inhibited by N-bromosuccinimide. The enzymes degraded xylan, producing xylose and xylobiose as the predominant products, indicating that they were endoxylanases. STX-I showed high sequence homology with the exoglucanase from Cellulomonas fimi (47% homology), and STX-II showed high sequence homology with the xylanase from Bacillus pumilus (46% homology).
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Affiliation(s)
- H Tsujibo
- Osaka University of Pharmaceutical Sciences, Japan
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Bioconversion of acid-hydrolyzed poplar hemicellulose to acetic acid byClostridium thermoaceticum. ACTA ACUST UNITED AC 1991. [DOI: 10.1007/bf01575595] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kennedy JF, Melo EHM. Bioconversions of cellulose—A major source of material for the biochemical industry. ACTA ACUST UNITED AC 1990. [DOI: 10.1002/pi.4980230304] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Biswas SR, Mishra AK, Nanda G. Xylanase and ?-xylosidase production byAspergillus ochraceus during growth on lignocelluloses. Biotechnol Bioeng 1988; 31:613-6. [DOI: 10.1002/bit.260310614] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lemmel S, Datta R, Frankiewicz J. Fermentation of xylan by Clostridium acetobutylicum. Enzyme Microb Technol 1986. [DOI: 10.1016/0141-0229(86)90091-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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