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Palavra-chave Solid state fermentation (43) Maestría (5) Response surface methodology (4) Submerged fermentation (4) Aspergillus niger (3) Digestibilidad “in vitro” (3) Digestibility “in vitro” (3) Fermentación sólida (3) Ganadería (3) Subproductos (3) Agro-industrial residues (2) Apple pomace (2) Aroma (2) Aspergillus terreus (2) By-products (2) Ceratocystis fimbriata (2) Ethanol (2) Optimization (2) Sugarcane bagasse (2) Trichoderma harzianum (2) Mais... Tipo do documento Info:eu-repo/semantics/article (34) Tesis (4) Journal article (2) Working or Discussion Paper (1) Ano 2019 (1) 2018 (1) 2016 (2) 2015 (2) 2014 (1) 2013 (2) 2012 (2) 2011 (3) 2010 (5) 2009 (4) 2008 (2) 2007 (4) 2006 (1) 2005 (1) 2004 (2) 2003 (1) 2002 (1) 2001 (1) 1999 (4) 1998 (3) Mais... País Brazil (34) Mexico (6) Chile (2) United States (1) Idioma Inglês (38) Espanhol (5)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 43 Primeira ... 1 2 3 ... Última A comparison of methods to determine tannin acyl hydrolase activity BABT Aguilar,Cristóbal; Christopher,Augur; Viniegra-González,Gustavo; Favela,Ernesto. Six methods to determine the activity of tannase produced by Aspergillus niger Aa-20 on polyurethane foam by solid state fermentation, which included two titrimetric techniques, three spectrophotometric methods and one HPLC assay were tested and compared. All methods assayed enabled the measurement of extracellular tannase activity. However, only five were useful to evaluate intracellular tannase activity. Studies on the effect of pH on tannase extraction demonstrated that tannase activity was considerably under-estimated when its extraction was carried out at pH values below 5.5 and above 6.0. Results showed that the HPLC technique and the modified Bajpai and Patil methods presented several advantages in comparison to the other methods tested. Tipo: Info:eu-repo/semantics/article Palavras-chave: Tannin acyl hydrolase; Assay; Polyurethane foam; Solid state fermentation; Tannase. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000300014 A new alternative to produce gibberellic acid by solid state fermentation BABT Rodrigues,Cristine; Vandenberghe,Luciana Porto de Souza; Teodoro,Juliana; Oss,Juliana Fraron; Pandey,Ashok; Soccol,Carlos Ricardo. Gibberellic acid (GA3) is an important hormone, which controls plant's growth and development. Solid State Fermentation (SSF) allows the use of agro-industrial residues reducing the production costs. The screening of strains (four of Gibberella fujikuoroi and one of Fusarium moniliforme) and substrates (citric pulp, soy bran, sugarcane bagasse, soy husk, cassava bagasse and coffee husk) and inoculum preparation study were conducted in order to evaluate the best conditions to produce GA3 by SSF. Fermentation assays were carried out in erlenmeyers flasks at 29°C, with initial moisture of 75-80%. Different medium for inoculum production were tested in relation to cells viability and GA3 production by SSF. F. moniliforme LPB 03 and citric pulp were chosen for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gibberellic acid; Fusarium moniliforme; Solid state fermentation; Inoculum; Agro-industrial residues. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700023 Application of Response Surface Methodology for Optimizing Process Parameters in the Production of Amylase by Aspergillus flavusNSH9 under Solid State Fermentation BABT Mustafa,Siti Ratina; Husaini,Ahmad; Hipolito,Cirilo Nolasco; Hussain,Hasnain; Suhaili,Nurshikin; Roslan,Hairul Azman. Amylase is recognized as one of the important commercial enzymes. This group of enzymes has the ability in hydrolyzing starch into smaller oligosacharides. The present work aimed to determine the optimum fermentation conditions for maximum production of crude amylase enzyme by Aspergillus flavus NSH9 employing response surface methodology (RSM).Central composite design (CCD) was applied to determine the optimal fermentation condition with respect to the four main process parameters such as temperature, initial moisture content, pH and the incubation period. Solid state fermentation (SSF) was performed using 5.0 g of sago hampas inoculated with 1x107sporesmL-1following the experimental design obtained using CCD and further optimized by RSM. The initial... Tipo: Info:eu-repo/semantics/article Palavras-chave: Solid state fermentation; Aspergillus flavusNSH9; Sago hampas; Central Composite Design; Response Surface Methodology. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100416 Biochemical properties of an extracellular &#946;-D-fructofuranosidase II produced by Aspergillus phoenicis under Solid-Sate Fermentation using soy bran as substrate Electron. J. Biotechnol. Rustiguel,Cynthia Barbosa; Oliveira,Arthur Henrique Cavalcanti de; Terenzi,Héctor Francisco; Jorge,João Atílio; Guimarães,Luis Henrique Souza. The filamentous fungus A. phoenicis produced high levels of ?-D-fructofuranosidase (FFase) when grown for 72 hrs under Solid-State Fermentation (SSF), using soy bran moistened with tap water (1:0.5 w/v) as substrate/carbon source. Two isoforms (I and II) were obtained, and FFase II was purified 18-fold to apparent homogeneity with 14% recovery. The native molecular mass of the glycoprotein (12% of carbohydrate content) was 158.5 kDa with two subunits of 85 kDa estimated by SDS-PAGE. Optima of temperature and pH were 55�C and 4.5. The enzyme was stable for more than 1 hr at 50�C and was also stable in a pH range from 7.0 to 8.0. FFase II retained 80% of activity after storage at 4�C by 200 hrs. Dichroism analysis showed the presence of random... Tipo: Journal article Palavras-chave: Agroindustrial substrate; Aspergillus; ?-D-fructofuranosidase; Solid state fermentation; Sucrose. Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000200002 Bioconversion of apple pomace into a multienzyme bio-feed by two mixed strains of Aspergillus niger in solid state fermentation Electron. J. Biotechnol. Zhong-Tao,Sun; Lin-Mao,Tian; Cheng,Liu; Jin-Hua,Du. Apple pomace is a wasted resource produced in large quantities and its deposit has caused serious environmental problems, so it is significance to make the full utilization of the residues. The objectives of this work were to produce multienzyme bio-feed, biodegrade the anti-nutritional factors such as pectin and tannins in apple pomace, and obtain the nutritional enrichment of the fermented substrate. The mixture of apple pomace and cottonseed powder (1:1, w/w), supplemented with 1% (w/w) (NH4)2SO4 and 0.1% (w/w) KH2PO4, was proved to be the optimum medium for the mixed strains of Aspergillus niger M2 and M3 (2:1, w/w). The activities of pectinase, proteinase and cellulase achieved 21168 u/g, 3585 u/g and 1208u/g, and the biodegradation rates of pectin... Tipo: Journal article Palavras-chave: Apple pomace; Aspergillus niger; Multienzyme bio-feed; Pectin; Solid state fermentation; Tannins. Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000100002 Bioconversion of biomass: a case study of ligno-cellulosics bioconversions in solid state fermentation BABT Pandey,Ashok; Soccol,Carlos R.. Lignocellulosic residues obtained from crops cultivation form useful sources to be used as substrate for bioconversion processes. Sugarcane bagasse, which is a complex substrate obtained from the processing of sugar cane, is an important biomass among such sources. Due to its abundant availability, it can serve as an ideal substrate for microbial processes for the production of value added products. This paper reviews recent developments on biological processes developed on production of various products in solid state fermentation using sugarcane bagasse as the substrate and describes production of protein enriched feed, enzymes, amino acid, organic acids and compounds of pharmaceutical importance, etc. through microbial means. Tipo: Info:eu-repo/semantics/article Palavras-chave: Ligno-cellulosics; Sugarcane bagasse; Bioconversion; Solid state fermentation. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000400001 Bioethanol production from sweet potato (Ipomoea batatas L.) flour using co-culture of Trichoderma sp. and Saccharomyces cerevisiae in solid-state fermentation BABT Swain,Manas Ranjan; Mishra,Jyoti; Thatoi,Hrudayanath. The aim of this work was to study the optimiation of co-culturing of Trichoderma sp. and Saccharomyces cerevisiae (1:4 ratio) on sweet potato (Ipomoea batatas L.) flour (SPF) for the production of bio-ethanol in solid-state fermentation (SSF). Maximum ethanol (172 g/kg substrate) was produced in a medium containing 80% moisture, ammonium sulphate 0.2%, pH 5.0, inoculuted with 10% inoculum size and fermented at 30ºC for 72h. .Concomitant with highest ethanol concentration, maximum ethanol productivity (2.8 g/kg substrate/h), microbial biomass (23×10(8) CFU/ g substrate), ethanol yield (47 g/100g sugar consumed) and fermentation efficiency (72%) were also obtained under these conditions. Cell interaction was observed familiar between the viable cells of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Trichoderma sp.; Saccharomyces cerevisiae; Sweet potato flour; Solid state fermentation. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000200002 Coffee residues as substrates for aroma production by Ceratocystis fimbriata in solid state fermentation BJM Medeiros,Adriane Bianchi Pedroni; Christen,Pierre; Roussos,Sevastianos; Gern,Juliana Carine; Soccol,Carlos Ricardo. The ability of two different strains of Ceratocystis fimbriata for fruity aroma production by solid state fermentation (SSF) was tested on coffee pulp and coffee husk complemented with glucose as substrates. Experiments were carried out in 250 mL Erlenmeyer flasks and the experimental conditions were: 70% of initial moisture, 20% of glucose addition and pH 6.0. Aeration was made by passive diffusion through the gauze covering the flasks. Headspace analysis of the culture by gas chromatography (GC) showed that 12 compounds were produced with coffee husk. Maximum total volatiles (TV) concentration was reached after 72 h of culture with coffee husk as substrate (28 µmol.L-1.g-1). Ethyl acetate, ethanol and acetaldehyde were the major compounds produced,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ceratocystis fimbriata; Coffee residues; Solid state fermentation; Aroma. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000300013 Column bioreactor use for optimization of pectinase production in solid substrate cultivation BJM Linde,Giani Andrea; Magagnin,Glênio; Costa,Jorge Alberto Vieira; Bertolin,Telma Elita; Colauto,Nelson Barros. This study aimed to determine the influence of process variables and production, of polygalacturonase (PG) and polymetylgalacturonase (PMG) by solid substrate cultivation using a fixed bed column bioreactor. A fractional factorial design (FFD) was used to study the effect of the following variables: microorganism (Aspergillus oryzae and Aspergillus niger), substratum (wheat bran and defatted rice bran), aeration (40 and 60 ml h-1g-1), pectin (5 and 10 g g-1) and nitrogen (urea and ammonium sulfate). Microorganism, aeration and initial pectin were identified in FFD as significant variables (p<0.05) on PG production. A central composed design to optimize PG and PMG productions indicated that Aspergillus niger presents higher PG production; substratum and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Solid state fermentation; Agro-industrial residues; Pectinase. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300033 Comparative study of a new alkaline L-methioninase production by Aspergillus ustus AUMC 10151 in submerged and solid-state fermentation BABT Abu-Tahon,Medhat Ahmed; Isaac,George Saad. Twenty four fungal species were screened for their ability to produce alkaline L-methioninase on methionine-glucose liquid medium. Aspergillus ustus AUMC 10151 displayed the highest yield of enzyme (10.8 U/mg protein), followed by A. ochraceus and Fusarium proliferatum. Upon optimization of the submerged fermentation (SmF)conditions, the maximum enzyme yield (18.23 U/mg protein) was obtained on a medium containing L-methionine (0.5%), sucrose (0.95%), KH2PO4 (0.1%) and 175 rpm. Seven agro-industrial by-products were screened as substrates for L-methioninase production under solid-state fermentation (SSF). Wheat bran resulted 38.1 U/mg protein, followed by rice bran (27.6 U/mg protein) and soya bean meal (26.6 U/mg protein). Maximum alkaline L-methioninase... Tipo: Info:eu-repo/semantics/article Palavras-chave: L-methioninase; Aspergillus ustus; Submerged fermentation; Solid state fermentation; Wheat bran. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100502 Copper improves the production of laccase by the white-rot fungus Pleurotus pulmonarius in solid state fermentation BABT Tychanowicz,Giovana Kirst; Souza,Daniela F. de; Souza,Cristina G. M.; Kadowaki,Marina Kimiko; Peralta,Rosane Marina. Pleurotus pulmonarius (Fr) Quélet, produced laccase as the main ligninolytic enzyme when cultivated on solid-state cultures using corn cob as substrate. The addition of copper greatly increased the production of enzyme. The addition of 25.0 mM CuSO4 increased the level of laccase from 270 to 1,420 U.L-1 and the fungus showed high resistance to copper under the conditions used in this work. Tipo: Info:eu-repo/semantics/article Palavras-chave: Copper; Laccase; Pleurotus pulmonarius; Phenoloxidase; Solid state fermentation. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600002 Crude Fermented Extract Containing Gibberellic Acid Produced by Fusarium moniliforme is an Alternative to Cost Reduction in Biofactories BABT Costa,Jefferson da Luz; Silva,André Luís Lopes da; Gollo,André Luiz; Brondani,Gilvano Ebling; Santos,Leandro Freire dos; Rodrigues,Cristine; Vandenberghe,Luciana Porto de Souza; Soccol,Carlos Ricardo. ABSTRACT Nidularium procerum and Nidularium innocentii (Bromeliaceae) were cultivated in vitro on media supplemented with different sources and levels of GA3 (gibberellic acid). These sources were the commercial powder (analytical degree) and fermented extract obtained by Fusarium moniliforme via solid state fermentation. The in vitro elongation and rooting of these plants were evaluated after 50 days of cultivation. The GA3 present in the fermented extract possess the same effect of purified GA3 (analytical degree) for the increase of the height of aerial part of shoots of N. innocentii, but not for the N. procerum being the GA3 fermented extract in a lesser degree. The GA3 fermented extract influences negatively the rooting in N. innocentii, while GA3... Tipo: Info:eu-repo/semantics/article Palavras-chave: Shelf life; Bromeliad; Gibberellin; Solid state fermentation; Micropropagation; Biofactory. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100427 Culture conditions for production of 2-1-β-D-Fructan-fructanohydrolase in solid culturing on chicory (Cichorium intybus) roots BABT Pandey,Ashok; Kavita,Poomarathil; Selvakumar,Ponniah. Investigations were carried out to optimize the culture conditions for the production of b-D-fructan-fructanohydrolase by an indigenously isolated bacterial culture of Staphylococcus sp. RRL8. Experiments were carried out in solid culturing using chicory roots (powdered) as the source of carbon, which was supplemented, with corn steep liquor and potassium dihydrogen phosphate. A number of process parameters, like period of cultivation, initial moisture content in the substrate and temperature of incubation were optimized. Maximum extra-cellular enzyme was produced when fermentation was carried out at 30ºC for 24 h using chicory roots with 60% initial moisture. Supplementation of the substrate with additional carbon source (except with sucrose) resulted... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fructan-fructanohydrolase; Inulinase; Solid state fermentation; Staphylococcus sp.; Chicory. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000200010 Economic Analysis of Cellulase Production by Clostridium thermocellum in Solid State and Submerged Fermentation AgEcon Zhuang, Jun; Marchant, Mary A.; Nokes, Sue; Strobel, Herbert. Dependence on foreign oil remains a serious issue for the U.S. economy. Additionally, automobile emissions related to petroleum-based, fossil fuel has been cited as one source of environmental problems, such as global warming and reduced air quality. Using agricultural and forest biomass as a source for the biofuel ethanol industry, provides a partial solution by displacing some fossil fuels. However, the use of high cost enzymes as an input is a significant limitation for ethanol production. Economic analyses of cellulase enzyme production costs using solid state cultivation (SSC) are performed and compared to the traditional submerged fermentation (SmF) method. Results from this study indicate that the unit costs for the cellulase enzyme production are... Tipo: Working or Discussion Paper Palavras-chave: Biomass; Enzyme production; Ethanol; Solid state fermentation; Submerged fermentation; Resource /Energy Economics and Policy. Ano: 2004 URL: http://purl.umn.edu/31982 Enhanced alkaline cellulases production by the thermohalophilic Aspergillus terreus AUMC 10138 mutated by physical and chemical mutagens using corn stover as substrate BJM Isaac,George Saad; Abu-Tahon,Medhat Ahmed. Abstract A thermohalophilic fungus, Aspergillus terreus AUMC 10138, isolated from the Wadi El-Natrun soda lakes in northern Egypt was exposed successively to gamma and UV-radiation (physical mutagens) and ethyl methan-sulfonate (EMS; chemical mutagen) to enhance alkaline cellulase production under solid state fermentation (SSF) conditions. The effects of different carbon sources, initial moisture, incubation temperature, initial pH, incubation period, inoculum levels and different concentrations of NaCl on production of alkaline filter paper activity (FPase), carboxymethyl cellulase (CMCase) and β-glucosidase by the wild-type and mutant strains of A. terreus were evaluated under SSF. The optimum conditions for maximum production of FPase, CMCase and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Thermohalophilic fungus; Aspergillus terreus; Alkaline cellulase; Solid state fermentation; Corn stover. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401269 Enhanced lipase recovery through RSM integrated differential evolutionary approach from the fermented biomass BABT Garlapati,Vijay Kumar; Vundavilli,Pandu Ranga; Banerjee,Rintu. The aim of this work was to apply a modeling integrated optimisation approach for a complex, highly nonlinear system for an extracellular lipase extraction process. The model was developed using mutation, crossover and selection variables of Differential Evolution (DE) based on central composite design of Response Surface Methodology. The experimentally validated model was optimized by DE, a robust evolutionary optimization tool. A maximum lipase activity of 134.13 U/gds (more than 36.28 U/gds compared to one variable at a time approach) was observed with the DE-stated optimum values of 25.01% dimethyl sulfoxide concentration, 40 mM buffer, 128.52 min soaking time and 35ºC with the DE control parameters, namely number of population, generations, crossover... Tipo: Info:eu-repo/semantics/article Palavras-chave: Modeling; Optimization; Lipase extraction; Response surface methodology; Differential evolution; Solid state fermentation. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000500001 Evaluation of apple pomace based reconstituted feed in rats after solid state fermentation and ethanol recovery BABT Devrajan,A.; Joshi,Vinod K.; Gupta,Kuldeep; Sheikher,Chander; Lal,Brij B.. To utilize apple pomace in an economical and effective way, a feed was developed by solid state fermentation (SSF) using sequential interactive co-culture of Candida utilis and Kloeckera. Removal of ethanol and drying of the left - over residue. Feeding trial was conducted in white albino rats before and after reconstitution of apple pomace feed in the choice and no choice study. Feeding of apple pomace feed in the rats before reconstitution indicated that neither in fermented nor in unfermented form it was acceptable. In the no choice study both in 100% fermented and unfermented apple pomace group feed intake decreased continuously resulting in death of rats apparently due to decreased digestibility owing to high fibre content. Further, fermented or... Tipo: Info:eu-repo/semantics/article Palavras-chave: Apple pomace; Rat feed; Solid state fermentation; Ethanol. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100013 Exo-polygalacturonase production by Bacillus subtilis CM5 in solid state fermentation using cassava bagasse BJM Swain,Manas R.; Kar,Shaktimay; Ray,Ramesh C.. The purpose of this investigation was to study the effect of Bacillus subtilis CM5 in solid state fermentation using cassava bagasse for production of Exo-polygalacturonase (exo-PG). Response surface methodology was used to evaluate the effect of four main variables, i.e. incubation period, initial medium pH, moisture holding capacity (MHC) and incubation temperature on enzyme production. A full factorial Central Composite Design was applied to study these main factors that affected exo-PG production. The experimental results showed that the optimum incubation period, pH, MHC and temperature were 6 days, 7.0, 70% and 50ºC, respectively for optimum exo-PG production. Tipo: Info:eu-repo/semantics/article Palavras-chave: Exo-polygalacturonase; Bacillus subtilis CM5; Response surface methodology; Solid state fermentation; Cassava bagasse. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300028 FRUITY AROMA PRODUCTION BY Ceratocystis fimbriata IN SOLID CULTURES FROM AGRO-INDUSTRIAL WASTES Rev. Microbiol. Bramorski,Adriana; Soccol,Carlos R.; Christen,Pierre; Revah,Sergio. Solid state fermentations were carried out to test the efficacy of Ceratocystis fimbriata to grow on different agro-industrial substrates and aroma production. Seven media were prepared using cassava bagasse, apple pomace, amaranth and soya bean. All the media supported fungal growth. While amaranth medium produced pineapple aroma, media containing cassava bagasse, apple pomace and soya bean produced a strong fruity aroma. The aroma production was growth dependent and the maximum aroma intensity was detected a few hours before or after the maximum respirometric activity. Sixteen compounds were separated by gas cromatography of the components present in the headspace and fifteen of them were identified as acid (1), alcohols (6), aldehyde (1), ketones (2)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ceratocystis fimbriata; Solid state fermentation; Agro-industrial wastes; Aroma. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000300012 High cellulolytic activities in filamentous fungi isolated from an extreme oligotrophic subterranean environment (Catão cave) in Brazil Anais da ABC (AABC) PAULA,CAIO C.P. DE; MONTOYA,QUIMI V.; MEIRELLES,LUCAS A.; FARINAS,CRISTIANE S.; RODRIGUES,ANDRÉ; SELEGHIM,MIRNA H.R.. Abstract Abstract: Isolation and screening of new fungal strains from extreme and understudied environments, such as caves, is a promising approach to find higher yields enzyme producers. Cellulolytic fungal strains isolated from a Brazilian cave were evaluated for their enzymatic production after submerged (SmF) and solid-state fermentation (SSF). After SmF, three strains were selected for their high enzymatic activities: Aspergillus ustus for endoglucanase (4.76 U/mg), Talaromyces bruneus for β-glucosidase (11.71 U/mg) and Aspergillus sp. (CBMAI 1926) for total cellulase (1.70 U/mg). After SSF, these strains, showed better yields compared to the reference strain Aspergillus niger 3T5B8. Aspergillus sp. (CBMAI 1926) stood out as a new species that... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cellulases; Fungu’s cave; Solid state fermentation; Submerged fermentation; Subterranean environment. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500601 Registros recuperados: 43 Primeira ... 1 2 3 ... Última

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