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| 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 |
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| El-Naggar,Noura El-Ahmady; Abdelwahed,Nayera A.M.; Saber,Wesam I.A.; Mohamed,Asem A.. |
| The use of low cost agro-industrial residues for the production of industrial enzymes is one of the ways to reduce significantly production costs. Cellulase producing actinomycetes were isolated from soil and decayed agricultural wastes. Among them, a potential culture, strain NEAE-J, was selected and identified on the basis of morphological, cultural, physiological and chemotaxonomic properties, together with 16S rDNA sequence. It is proposed that strain NEAE-J should be included in the species Streptomyces albogriseolus as a representative of a novel sub-species, Streptomyces albogriseolus subsp. cellulolyticus strain NEAE-J and sequencing product was deposited in the GenBank database under accession number JN229412. This organism was tested for its... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agro-industrial residues; Endoglucanase production; Streptomyces albogriseolus; 16S rRNA; Scanning electron microscope. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200050 |
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| 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 |
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| Stuepp,Carlos André; Wendling,Ivar; Koehler,Henrique Soares; Zuffellato-Ribas,Katia Christina. |
| Abstract The objective of this work was to evaluate the effect of different compositions of renewable substrates and seasons of the year on the quality of Piptocarpha angustifolia clonal plants. The experiment was carried out in a completely randomized design in a 4x6 factorial arrangement (four seasons x six substrate compositions). The analyzed substrates were: S1, commercial substrate with pine bark and coconut fiber base (CF); S2, carbonized rice husk (CRH); S3, fibrous and grainy CF; S4, 50% CF and 50% CRH; S5, 30% CF and 70% CRH; and S6, 70% CF and 30% CRH. Minicuttings of 8±1 cm were planted in tubes of 110 cm3 and placed in a greenhouse, during the four seasons of the year. The evaluated variables were: survival and number of roots at 70 days;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agro-industrial residues; Clonal forestry; Forest plant quality; Production of minicuttings; "vassourão-branco". |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016001101821 |
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| Sumantha,Alagarsamy; Deepa,Paul; Sandhya,Chandran; Szakacs,George; Soccol,Carlos Ricardo; Pandey,Ashok. |
| Rice bran was used as the substrate for screening nine strains of Rhizopus sp. for neutral protease production by solid-state fermentation. The best producer, Rhizopus microsporus NRRL 3671, was used for optimizing the process parameters for enzyme production. Fermentation carried out with 44.44 % initial moisture content at a temperature of 30 C for 72 h was found to be the optimum for enzyme secretion by the fermenting organism. While most of the carbon supplements favored enzyme production, addition of casein resulted in a marginal increase in protease yield. Fermentation was then carried out under optimized conditions to obtain the crude extract of the enzyme, which was partially purified by precipitation and dialysis. A 3-fold increase in the enzyme... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solid-state fermentation; Rice bran; Rhizopus; Neutral protease; Agro-industrial residues. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600019 |
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| Azevedo, Eduardo Buchaul; UENF; Marinho, Cláudia Sales; UENF; Muniz, Rodrigo de Almeida; UENF; Carvalho, Almy Júnior Cordeiro de; UENF. |
| Foram conduzidos dois experimentos com objetivo de avaliar o crescimento e estado nutricional da muda de citros, em função de diferentes doses de uréia revestida (UR). No primeiro, conduzido do transplantio (01/2006) ao ponto de enxertia (06/2006), foram avaliadas cinco doses de UR (0, 0,5, 1,0, 2,0 e 4,0 kg m-3 de substrato) e dois substratos (Plantmax® e outro obtido da mistura entre bagaço de cana + torta de filtro – BT). No segundo, conduzido do ponto de enxertia ao de desponte (12/2006), foram avaliadas as cinco doses de UR no substrato BT. O ponto de enxertia foi atingido aos 120 dias após o transplantio nas plantas cultivadas no substrato BT, enquanto no Plantmax®, não foi atingido. O teor de N no porta-enxerto cultivado no substrato BT aumenta com... |
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Palavras-chave: 5.01.03.04-0 Produção de Mudas adubo de liberação lenta; Resíduos agroindustriais; Propagação; Citrus reshni; Citrus sinensis. slow release fertilizers; Agro-industrial residues; Propagation; Citrus reshni; Citrus sinensis. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6639 |
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| Couto,Gabriela Martucci; Dessimoni,Anelise Lima de Abreu; Bianchi,Maria Lúcia; Perígolo,Deise Morone; Trugilho,Paulo Fernando. |
| Wood sawdust is a solid residue, generated in the timber industry, which is of no profitable use and can cause serious environmental problems if disposed inadequately. The aim of this study was to use the eucalyptus sawdust in the preparation of activated carbons AC) and test them as adsorbents of methylene blue (MB) and phenol, representative pollutants from aqueous effluents of various industries. The eucalyptus sawdust was characterized by instrumental analysis such as elementary analysis (CHNS-O), thermogravimetric analysis (TGA), infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The activated carbons were prepared by physical activation with carbon dioxide AC_CO2, (10º C min-1, 850º C, 1h) and by chemical activation with potassium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agro-industrial residues; Adsorbents; Pollutants. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000100009 |
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