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Siziya IN, Kim YS, Seo DH. Whole cell biosynthesis of luteolin glycosides by engineered Corynebacterium glutamicum harboring the amylosucrase gene. FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2021.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Magadum DB, Yadav GD. Fermentative production, purification of inulinase from Aspergillus terreus MTCC 6324 and its application for hydrolysis of sucrose. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.03.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kowalska A, Antecka A, Owczarz P, Bizukojć M. Inulinolytic activity of broths of Aspergillus niger ATCC 204447 cultivated in shake flasks and stirred tank bioreactor. Eng Life Sci 2017; 17:1006-1020. [PMID: 32624851 DOI: 10.1002/elsc.201600247] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/03/2017] [Accepted: 04/18/2017] [Indexed: 12/20/2022] Open
Abstract
It is the first detailed study of an inulinolytic fungus Aspergillus niger ATCC 204447 since its discovery, covering submerged cultivations both in shake flasks and a stirred tank bioreactor. Various carbon sources were applied to induce the inulinolytic activity in shake flask cultures. The highest volumetric and specific (per gram of biomass) activities (respectively 0.68 U/mL and 184 U g/X) were observed for the initial inulin and sucrose concentrations equal to 20 g/L. The fungus grew as large (>3 mm) spherical pellets. The influence of inoculum density and application of microparticle-enhanced cultivation (MPEC) were studied in the batch bioreactor cultivations. Inoculum density moderately affected the inulinolytic activities, whose highest values were 0.7 U/mL and 165 U g/X at the lowest studied spore density of 3.33·108 L-1. Dispersed hyphae evolved in the bioreactor made the broth difficult to aerate due to high apparent viscosity (exceeding 200 Pa sn at shear rate about 0.05 s-1) and shear thinned properties (flow behavior index below 0.2). In MPEC (10 μm talc microparticles) the pellets of diameter between 1 and 2 mm were formed, which facilitated the aeration of the broth and increased the specific inulinolytic activity 3.5-fold.
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Affiliation(s)
- Anna Kowalska
- Department of Bioprocess Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Lodz Poland
| | - Anna Antecka
- Department of Bioprocess Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Lodz Poland
| | - Piotr Owczarz
- Department of Chemical Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Lodz Poland
| | - Marcin Bizukojć
- Department of Bioprocess Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Lodz Poland
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Pessoni RAB, Braga MR, Figueiredo-Ribeiro RDCL. Purification and properties of exo-inulinases from Penicillium janczewskii growing on distinct carbon sources. Mycologia 2017. [DOI: 10.1080/15572536.2007.11832543] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Molecular identification of a novel inulinolytic fungus isolated from and grown on tubers of Helianthus tuberosus and statistical screening of medium components. World J Microbiol Biotechnol 2012; 28:3245-54. [PMID: 22892864 DOI: 10.1007/s11274-012-1134-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Accepted: 07/13/2012] [Indexed: 10/28/2022]
Abstract
Of 24 fungi belonging to more than five genera isolated from tubers of rotten Helianthus tuberosus, 11-inulinolytic active isolates were able to develop halo zones around their fungal colonies, indicating inulinase activity. Alternaria, Aspergillus, Fusarium, Pencillium and Trichoderma were the most common inulinolytic genera, representing more than 90 % of the total positive inulinolytic fungi. Aspergillus tamarii and Pencillium citrinum quantitatively recorded better growth (5.5 and 4.7 mg ml(-1)) and inulinase production (21.53 and 20.15 U ml(-1)) in submerged culture. The enzyme preparation showed also invertase activity. Aspergillus tamarii, as the most potent producer of inulinase, was identified using the Inter Transcribed Spacer marker. The sequence comparisons showed that our molecularly identified strain (GU295949) is related more closely to A. tamarii strains of the gene bank. Statistical screening using the fractional factorial Plackett-Burman design with 12 run was applied for screening ten variables, the low levels of pH (4.8), inoculum size (10(3) spore g(-1)), NH(4)NO(3) (1.0 mg g(-1)) and MgSO(4) (0.12 mg g(-1)), were the most significant variables on A. tamarii inulinase production. The high inulinase/invertase ratio (1.841-4.293) classified the enzyme preparation as inulinases, which can be used efficiently in production of fructose syrup from tubers of H. tuberosus.
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Neagu Bonciu C, Constantin O, Bahrim G. Increase in extracellular inulinase production for a new Rhizoctonia ssp. strain by using buckwheat (Fagopyrum esculentum) flour as a single carbon source. Lett Appl Microbiol 2012; 55:195-201. [DOI: 10.1111/j.1472-765x.2012.03279.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nascimento DS, Valasques Junior G, Fernandes P, Ribeiro GCA, Lima DM, Góes-Neto A, Oliveira RQ, Figueiredo-Ribeiro RDCL, Assis SAD. Production, characterization and application of inulinase from fungal endophyte CCMB 328. AN ACAD BRAS CIENC 2012; 84:443-54. [PMID: 22634747 DOI: 10.1590/s0001-37652012005000035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Accepted: 02/23/2011] [Indexed: 11/22/2022] Open
Abstract
Inulinase (β-2,1-D- fructan fructanohydrolase), EC 3.2.1.7, targets the β-2,1 linkage of inulin, a polyfructan consisting of linear β-2,1 linked fructose, and hydrolyzes it into fructose. This use provides an alternative to produce fructose syrup through the hydrolysis of inulin. The objective of this work was to study the production, characterization and applications of inulinases from the fungal endophyte CCMB 328 isolated from the Brazilian semi-arid region. Response Surface Methodology (RSM) was employed to evaluate the effect of variables (concentration of glucose and yeast extract), on secreted inulinase activities detected in the culture medium and also in the inulin hydrolysis. The results showed that the best conditions for inulinase production by CCMB 328 are 9.89 g / L for glucose and 1.09 g / L for yeast extract. The concentration of 0.20 mol/L of NaCl and KCl increased the activity of inulinase from CCMB 328 by approximately 63% and 37%, respectively. The results also showed that the inulinase has potential for inulin hydrolysis, whose conversion yields roughly 72.48 % for an initial concentration of inulin at 1% (w/v).
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Affiliation(s)
- Diego S Nascimento
- Laboratório de Enzimologia e Tecnologia de Fermentação, Departamento de Saúde, Universidade Estadual de Feira de Santana, BA, Brasil
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Gutiérrez-Correa M, Ludeña Y, Ramage G, Villena GK. Recent Advances on Filamentous Fungal Biofilms for Industrial Uses. Appl Biochem Biotechnol 2012; 167:1235-53. [DOI: 10.1007/s12010-012-9555-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 01/06/2012] [Indexed: 11/28/2022]
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Ramage G, Rajendran R, Gutierrez-Correa M, Jones B, Williams C. Aspergillus biofilms: clinical and industrial significance. FEMS Microbiol Lett 2011; 324:89-97. [PMID: 22092808 DOI: 10.1111/j.1574-6968.2011.02381.x] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 08/09/2011] [Accepted: 08/09/2011] [Indexed: 11/30/2022] Open
Abstract
The biofilm phenotype is an increasingly important concept in mycological research. Recently, there has been a developing interest in whether Aspergillus species are truly able to form biofilms or not. Industrial mycologists have long been aware of biofilms and their benefit in fermentation processes, whereas clinically their role is uncertain. This review provides an update on the impact that Aspergillus biofilms have medically and industrially, and will discuss biofilm development, and our current understanding of its molecular basis. The role of exopolymeric substance and how this substance relates to antimicrobial recalcitrance will also be discussed.
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Affiliation(s)
- Gordon Ramage
- School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, UK.
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Cellulase production by Aspergillus niger in biofilm, solid-state, and submerged fermentations. Appl Microbiol Biotechnol 2010; 87:545-51. [DOI: 10.1007/s00253-010-2540-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 02/28/2010] [Accepted: 03/04/2010] [Indexed: 10/19/2022]
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Vijayaraghavan K, Yamini D, Ambika V, Sowdamini NS. Trends in inulinase production--a review. Crit Rev Biotechnol 2009; 29:67-77. [PMID: 19514896 DOI: 10.1080/07388550802685389] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This article highlights the research work carried out in the production of inulinases from various inulin substrates using strains of bacteria, yeast and fungi. Inulin is one of the numerous polysaccharides of plant origin that contains glucose or fructose. It is used as a substrate in industrial fermentation processes and in food industries due to its relatively cheap and abundant source for the microbiological production of high-fructose syrups, ethanol and acetone-butanol. The various oligosaccharides derived from inulin also find their application in the medical and dietary sector. The inulinase acts on the beta-(2,1)-D-fructoside links in inulin releasing D-fructose. Hence, this article illustrates the capability of various microbes in hydrolyzing the carbon at its optimum nutrient concentration and operating condition towards inulinase production.
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Affiliation(s)
- Krishnan Vijayaraghavan
- Department of Biotechnology, Biotechnology Research Division, Prathyusha Institute of Technology and Management, Thiruvallur, Tamil Nadu, India.
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Fructooligosaccharides and β-fructofuranosidase production by Aspergillus japonicus immobilized on lignocellulosic materials. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2009.01.005] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mussatto SI, Aguilar CN, Rodrigues LR, Teixeira JA. Colonization of Aspergillus japonicus on synthetic materials and application to the production of fructooligosaccharides. Carbohydr Res 2009; 344:795-800. [DOI: 10.1016/j.carres.2009.01.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2008] [Revised: 01/28/2009] [Accepted: 01/30/2009] [Indexed: 10/21/2022]
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da Cunha MAA, Converti A, Santos JC, Ferreira STS, da Silva SS. PVA-Hydrogel Entrapped Candida Guilliermondii for Xylitol Production from Sugarcane Hemicellulose Hydrolysate. Appl Biochem Biotechnol 2008; 157:527-37. [DOI: 10.1007/s12010-008-8301-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2008] [Accepted: 06/17/2008] [Indexed: 10/21/2022]
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Villena GK, Gutiérrez-Correa M. Morphological patterns of Aspergillus niger biofilms and pellets related to lignocellulolytic enzyme productivities. Lett Appl Microbiol 2007; 45:231-7. [PMID: 17718832 DOI: 10.1111/j.1472-765x.2007.02183.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS To study the morphological patterns of Aspergillus niger during biofilm formation on polyester cloth by using cryo-scanning electron microscopy related to lignocellulolytic enzyme productivity. METHODS AND RESULTS Biofilm and pellet samples obtained from flask cultures were examined at -80 degrees C in a LEO PV scanning electron microscope. Spore adhesion depends on both its rough surface and adhesive substances that form a pad between spore and support. An extracellular matrix surrounding germ tubes and hyphae was also seen. Biofilm mycelia showed an orderly distribution forming surface and inner channels, while pellets showed highly intertwined superficial hyphae and a densely packed deep mycelium. Morphological differences between both types of culture correlated with differences in enzyme volumetric and specific productivities. Biofilm cultures produced higher filter paper cellulase, endoglucanase, beta-glucosidase and xylanase volumetric and specific productivities than submerged cultures. CONCLUSIONS Fungal biofilms are morphologically efficient systems for enzyme production. Favourable physiological aspects are shared with solid state fermentation, but fungal biofilms present better possibilities for process control and scale-up. SIGNIFICANCE AND IMPACT OF THE STUDY The results of this study support the importance of morphology in the productivity of fungal submerged processes, placing biofilms in a preferential category.
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Affiliation(s)
- G K Villena
- Laboratorio de Micología y Biotecnología, Universidad Nacional Agraria La Molina, Lima, Peru
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Cunha MAA, Rodrigues RCB, Santos JC, Converti A, da Silva SS. Repeated-Batch Xylitol Bioproduction Using Yeast Cells Entrapped in Polyvinyl Alcohol–Hydrogel. Curr Microbiol 2007; 54:91-6. [PMID: 17211545 DOI: 10.1007/s00284-005-0465-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2005] [Accepted: 06/13/2006] [Indexed: 12/01/2022]
Abstract
Xylose-to-xylitol conversion was investigated in a bench-scale bioreactor using Candida guilliermondii cells entrapped within polyvinyl alcohol-hydrogel beads in a system operated in repeated-batch mode with cell recycling. Yeast-viable cells were immobilized in the support using the freezing-thawing method. Bioconversion assays were performed in a stirred tank reactor operated at 400-rpm agitation speed, 30 degrees C temperature, and 1.04-vvm air flow rate. The system was explored during six successive cycles, and a small decrease in the conversion performance in the fifth cycle was observed, but the biocatalytic activity of the microorganism was recovered in the sixth cycle after washing the particles. During the process, the hydrogel beads maintained their shape and size without appreciable deterioration. Xylitol production, yield factor, and volumetric productivity increased with progressive recycling of cells and achieved their maximum values (P(F) = 39.7 g l(-1); Y(P/S) = 0.77 g g(-1); Q(P) = 0.53 g l(-1) h(-1), respectively) after the third cell recycling, probably because of cells' adaptation to the medium.
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Affiliation(s)
- M A A Cunha
- Department of Biotechnology, Faculty of Chemical Engineering, Lorena, Rodovia Itajubá-Lorena, Km 74.5, C.P. 116, 12600-970, Lorena-SP, Brazil
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Villena GK, Gutiérrez-Correa M. Production of cellulase by Aspergillus niger biofilms developed on polyester cloth. Lett Appl Microbiol 2006; 43:262-8. [PMID: 16910929 DOI: 10.1111/j.1472-765x.2006.01960.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS To compare cellulase production by Aspergillus niger ATCC 10864 biofilms on polyester cloth and freely suspended cultures in shaken flasks and microbioreactors of bubble column type. METHODS AND RESULTS Both shaken flasks and oxygenated microbioreactors containing 40 ml of production medium were used to compare cellulase secretion by free mycelium and biofilm cultures. Free mycelium cultures grew better in flasks than in microbioreactors producing compact and fluffy pellets, respectively, while the opposite was found for biofilm cultures without any visible change in biofilm morphology. Cellulase activities and volumetric productivities attained by biofilms in flask cultures were 70% higher than that produced by free mycelium cultures and threefold higher when biofilms were grown in microbioreactors. CONCLUSIONS Fungal biofilms developed on polyester cloth in both flasks and microbioreactors produce higher cellulase yields and volumetric productivities than free mycelium cultures at lower biomass levels. SIGNIFICANCE AND IMPACT OF THE STUDY The results of the present study are of commercial and biological interest. All productivity parameters revealed that fungal biofilms may be used for the production of cellulase and other proteins in various types of bioreactors. Moreover, they may be used as model systems to study differential gene expression related to cell adhesion.
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Affiliation(s)
- G K Villena
- Laboratorio de Micología y Biotecnología, Universidad Nacional Agraria La Molina, Lima, Peru
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