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1,3-Propanediol production from crude glycerol by Clostridium butyricum DSP1 in repeated batch Electron. J. Biotechnol.
Szymanowska-Powalowska,Daria.
Background The production of biofuels from renewable energy sources is one of the most important issues in industrial biotechnology today. The process is known to generate various by-products, for example crude glycerol, which is obtained in the making of biodiesel from rapeseed oil. Crude glycerol may be utilized in many ways, including microbial conversion to 1,3-propanediol (1,3-PD), a raw material for the synthesis of polyesters and polyurethanes. Results The paper presents results of a study on the synthesis of 1,3-propanediol from crude glycerol by a repeated batch method with the use of Clostridium butyricum DSP1. Three cycles of fermentation medium replacement were carried out. The final concentration of 1,3-PD was 62 g/L and the maximum...
Tipo: Journal article Palavras-chave: Environmental stress; Fermentation; High-performance liquid chromatography.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000600011
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A nonconventional two-stage fermentation system for the production of aerial conidia of entomopathogenic fungi utilizing surface tension. Repositório Alice
LOPES, R. B.; FARIA, M. R. de; GLARE, T. R..
bitstream/item/189788/1/Lopes-et-al-2019-Journal-of-Applied-Microbiology.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Aerial conidia; Mass production; Mycopesticides; Beauveria Bassiana; Fermentation.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103055
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Aerobic stability in corn silage (Zea maysL.) ensiled with different microbial additives Animal Sciences
Bumbieris Junior, Valter Harry; Guimarães, Vinícius André de Pietro; Fortaleza, Ana Paula de Souza; Massaro Junior, Fernando Luiz; Moraes, Gabriella Jorgette de; Meza, Diego Armando Rojas.
  This study aimed to assess different microbial additives, regarding the efficiency of aerobic stability in corn silages. The corn hybrid used for silages production was the DKB 310. The treatments consisted of: 1) control treatment without any microbial additive; 2) Treatment with LPPA composed of: Lactobacillus plantarum CCT 0580 3.1 x 1010 CFU g-1 and Propionibacterium acidipropionici CCT 4843 3.1 x 1010 CFU g-1; 3) Treatment with Inoculum, composed of Bacillus subtilis CCT 0089 3.0 x 109 CFU g-1, Lactobacillus plantarum CCT 0580 1.2 x 1010 CFU g-1 and Propionibacterium acidipropionici CCT 4843 1.5 x 1010 CFU g-1 and 4) Treatment LB, composed only of Lactobacillus buchneri CCT 3746 2.6 x 1010 CFU g-1. The experimental design was completely randomized...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.04.01-6 A aerobiosis; Silage; Fermentation; Nutritional quality..
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/34426
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Alcohol production from sweet potato (Ipomoea batatas (L.) Lam.) genotypes in fermentative medium Acta Agron. (Palmira)
Cantos-Lopes,Amanda; Vilela-de Resende,Juliano Tadeu; Machado,José; Perez-Guerra,Edson; Vilela-Resende,Nathalia.
Abstract Ethanol is one of the most promising fuels in Brazil, but its production is centralized in sugarcane cultivation, and is currently in search for other sources alcohol producing biomass to replace sugarcane monoculture. The aim of this study was to study fermentation process variables such as fermentation time (72 and 96 hours), addition of nutrients (with and without addition) and yeasts (dry and fresh organic yeast), employed in ethanol production from two sweet potato (Ipomoea batatas (L.) Lam.) genotypes: UGA 05 and UGA 77. Alcohol evaluation content in °GL was performed in a completely randomized design according to two factorial schemes (22 and 23), and results obtained were analyzed using Design Expert® software version 8. Results of the...
Tipo: Journal article Palavras-chave: Biofuel; Ethanol production; Fermentation; Saccharification; Starch; Water content.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200231
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Analysis of batch and repeated fedbatch productions of Candida utilis cell mass using mathematical modeling method Electron. J. Biotechnol.
Lin,Yutian; Liu,Guoli; Lin,Huibin; Gao,Ling; Lin,Jianqiang.
Background: Candida utilis is widely used in bioindustry, and its cell mass needs to be produced in a cost effective way. Process optimization based on the experimental results is the major way to reduce the production cost. However, this process is expensive, time consuming and labor intensive. Mathematical modeling is a useful tool for process analysis and optimization. Furthermore, sufficient information can be obtained with fewer experiments by using the mathematical modeling, and some results can be predicted even without doing experiments. Results: In the present study, we performed the mathematical modeling and simulation for the cell mass production of Candida utilis based on limited batch and repeated fedbatch experiments. The model parameters...
Tipo: Journal article Palavras-chave: Candida utilis; Fermentation; Genetic algorithm; Mathematical model.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000400002
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ANTIBIOTIC PRODUCTION BY STREPTOMYCES HYGROSCOPICUS D1.5: CULTURAL EFFECT Rev. Microbiol.
Bhattacharyya,Barun K.; Pal,Sushil C.; Sen,Sukanta K..
In an attempt to screen out new potent antibiotic producers from soil, Streptomyces hygroscopicus D1.5 was isolated and was found antagonistic to both bacteria and fungi. It could utilise arginine as nitrogen source and glycerol as carbon source at 0.75 g/l and 11.5 g/l level, respectively for maximum antibiotic yield.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antibiotics; Fermentation; Streptomyces.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000300003
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Assessing the nutritional value of agroindustrial co-products and feed through chemical composition, in vitro digestibility, and gas production technique Animal Sciences
Olivo, Paula Martins; Santos, Geraldo Tadeu dos; Ítavo, Luís Carlos Vinhas; Silva Junior, Ranulfo Combuca da; Leal, Eduardo Souza; Prado, Rodolpho Martin do.
Agroindustrial co-products are a viable alternative for use in animal nutrition. Tests were conducted using eight different types of co-products and feed to evaluate the chemical composition, in vitro digestibility of dry matter, crude protein and neutral detergent fiber, and gas production by them. The co-products tested were: coffee hulls; pelleted citrus pulp; grape residue; soybean hulls; cottonseed; cassava foliage; and foods usually supplied to ruminants: corn silage and ground corn concentrate. Data of in vitro digestibility of dry matter, crude protein and neutral detergent fiber were tested by analysis of variance using the least square method; the results of gas production were interpreted by a non-linear regression by the Gauss-Newton method;...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zootecnia; Nutrição de Ruminantes alternative feed; Degradation; Fermentation; Gas production.s.
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/34024
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Avaliação de silagens de treze genótipos de sorgo. 1. Matéria seca, perdas de matéria seca, carboidratos solúveis e pH. Repositório Alice
SILVA, A.V.; GONCALVES, L.C.; RODRIGUEZ, N.M.; RODRIGUES, J. A. S.; FERNANDES, P.C.C.; BORGES, I..
Treze genotipos de sorgo foram agrupados pela suculencia de seus colmos e apresentaram niveis de materia seca (MS) variando entre 24,54 e 34,27%, para o material original, e de 23,11 a 36,12% para suas silagens. Diferencas significativas foram observadas entre genotipos quando comparados os niveis de carboidratos soluveis (CS) nas amostras originais, sendo que estes oscilaram de 2,20 a 17,22%. Ja os valores medios obtidos para pH das silagens variaram de 3,52 a 4,34. A avaliacao de qualidade final das silagens permitiu classifica-las como sendo de boa qualidade.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Sorgo; Conservacao; Fermentacao; Silagem; Suculencia; Umidade; Sorghum bicolor; Conservation; Fermentation; Juicy; Humidity.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/handle/doc/484164
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Avaliação do potencial forrageiro de leguminosas nativas da caatinga mediante uso da técnica de produção de gases in vitro. Repositório Alice
MAGALHÃES, Y. A.; GALVANI, D. B.; MARTINS, T. P.; SANTOS, S. F.; COSTA, H. H. A..
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Canavalia brasiliensis; Amburana cearenses; Planta forrageira; Espécie nativa; Caatinga; Ruminante; Nutrição vegetal; Fermentation; Plant nutrition; Ruminants; Browse plants; Feed crops.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1009942
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Avaliação do uso de diferentes tipos de sacos de tecido para incubação in vitro de amostras vegetais. Repositório Alice
MARTINS, T. P.; GALVANI, D. B.; SANTOS, S. F. dos..
Resumo: Avaliou-se o potencial de uso de sacos de tecido com diferentes características e porosidades para acondicionamento de amostras em ensaios de produção de gases in vitro. Para isso, amostras de feno de capim coastcross (Cynodon sp.), secas em estufa de ventilação forçada e trituradas (1 mm) foram incubadas durante 96 horas em frascos de vidro com 160 mL de capacidade, contendo 72 mL de meio de cultura e 8 mL de inóculo ruminal. O substrato foi incubado, em quadruplicata, diretamente no frasco de fermentação (controle) ou acondicionado em 3 tipos de saco de tecido: ANKOM filter bag (modelo F57, porosidade = 25 ?m); saco de poliéster (3,5 × 8,0 cm) com porosidade de 25 ?m; saco de poliéster (3,5 × 8,0 cm) com porosidade de 40 ?m. Os valores de...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Armazenamento de amostra; Cinética fermentativa; Degradabilidade; Porosidade; Cultura in vitro; Digestibilidade; Fermentation; Porosity; Bags (storage).
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/975189
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Avaliação pela técnica semiautomática de produção de gases das silagens de quatro genótipos de girassol (Helianthus annus) (Rumbosol 91, Victoria 627, Victoria 807 e Mycogen 9338) Repositório Alice
JAYME, D. G.; GONÇALVES, L. C.; MAURÍCIO, R. M.; RODRIGUES, J. A. S.; RODRIGUEZ, N. M.; BORGES, A. L. C. C.; BORGES, I.; SALIBA, E. O. S.; PIRES, D. A. de A.; GUIMARAES JUNIOR, R.; JAYME, C. G.; PEREIRA, L. G. R..
Foram avaliadas as silagens de quatro genótipos de girassol (Helianthus annus) (Rumbosol 91, Victoria 627, Victoria 807 e Mycogen 93338), pela técnica semiautomática de produção de gases. O delineamento experimental utilizado foi o de blocos ao acaso, em esquema de parcelas subdivididas, sendo as médias comparadas pelo teste SNK (p<0,05). O genótipo Rumbosol 91 apresentou a maior produção acumulativa de gases para o tempo de 96 horas de incubação com valor de 128,47mL/g de MS, e o menor valor foi observado para o genótipo Victoria 807 com 92,88. Não foram observadas diferenças entre os valores de degradabilidade da matéria seca (DMS) para as silagens avaliadas nos diferentes tempos. O potencial máximo de produção de gases variou de 91,67 para o genótipo...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Silagem; Girassol; Helianthus annus; Fermentação; Valor nutritivo; Produção de gases; Sunflower; Fermentation; Nutritive value; Gas production; Silage; Girassol; Helianthus annuus; Fermentação; Valor nutritivo.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/580802
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Bacillus thuringiensis production using cassava liquid waste (manipueira) as a fermentation substrate. Repositório Alice
MORAES, I.O.; CAPALBO, D. M. F.; MORAES, R.O.; BIANCHI, V.L. del; CONTI, H.H..
In developing countries the search for inexpensive substrates to grow useful microorganisms is a desirable way to get new and safe products to protect man against insect pest losses. Bacillus thuringiensis is an entomopathogenic bacteria, which by fermentation produces endo- or exotoxins to be used against Lepidoptera or Diptera, resp. These are insect pests of economic importance in developing countries, mainly in Brazil, where 60% losses in agriculture are caused by this type of pest. Our research group has been working with B. thuringiensis since 1970; and many papers have been published on the processes, culture media composition and available substrates, culture and operational conditions, equipment and so on. Many residues and waste waters were tried...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Bacillus thuringiensis; Production; Manihot; Residues; Substrates; Fermentation; Producao; Manipueira; Mandioca; Resíduo; Substrato; Fermentação.
Ano: 1994 URL: http://www.alice.cnptia.embrapa.br/handle/doc/12036
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Bioconversion of mixed free fatty acids to poly-3-hydroxyalkanoates by Pseudomonas putida BET001 and modeling of its fermentation in shake flasks Electron. J. Biotechnol.
Makhdum Munawar,Khalil Munawar; Simarani,Khanom; Annuar,Mohamad Suffian Mohamad.
Background: The paper reports on the utilization of palm kernel oil (PKO) as a low cost renewable substrate for medium-chain-length poly-3-hydroxyalkanoates (mcl-PHA) production by Pseudomonas putida BET001. Investigation on the effects of selected key variables on growth, mixed free fatty acids consumption and mcl-PHA production by the bacterial culture in the shaken flask system were carried out along with its kinetic modeling. Results: The biomass production, fatty acids consumption and mcl-PHA production were found favorable when the strain was cultured in mineral medium at pH 6-7,28°C, aeration surface-to-volume ratio of 0.4 x 10(6) m-1, 250 rpm agitation rate for 48 h. Mcl-PHA production by this strain showed mixed growth and non-growth associated...
Tipo: Journal article Palavras-chave: Biopolymer; Fermentation; Medium-chain-length PHA; Palm kernel oil; Pseudomonas putida.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000100008
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Biomass distribution and physiological capabilities of bacteria in the water column above a sea grass system. ArchiMer
Velimirov, B; Herndl, G; Kavka, G.
The distribution pattern of bacteria in the water column above and within a Posidonia oceanica bed near Ischia (off the Gulf of Naples) was investigated and correlated with DOC and POM data for autumn and winter. Data from samples of 5 stations along a transect from shallow to deep showed rather low bacterial densities (10 super(4).ml super(-1)) for both seasons. The number of attached bacteria was higher in late winter as compared to autumn when the leaves are shed from the stands. Except for occasional peaks DOC ranged between 1.5 and 4.5 mg C/1 while POM concentrations ranged form 4 to 14 mg AFDW.1 super(-1). Hydrolytic capabilities of isolated bacterial colonies showed that more carbohydrate substrates could be fermented in winter as compared to...
Tipo: Text Palavras-chave: Posidonia oceanica; Microorganisms; Physiology; Seasonal distribution; Algae; Bacteria; Particulate organic matter; Metabolism; Water column; Fermentation; Sea grass.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-954.pdf
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Bionanoparticles, a green nanochemistry approach Electron. J. Biotechnol.
Cauerhff,Ana; Castro,Guillermo R.
Background: In the past decade, considerable attention has been paid for the development of novel strategies for the synthesis of different kind of nano-objects. Most of the current strategies are usually working by the use physical or chemical principles to develop a myriad of nano-objects with multiple applications. Main fields of nanotechnology applications range from catalysis, micro- and nano-electronics (semiconductors, single electrons transistors), non-linear optic devices, photo-electrochemistry to biomedicine, diagnostics, foods and environment, chemical analysis and others. Results: Two main avenues for nanoparticles synthesis: cell-free extract and cell cultivation have been reported. The state of art of both biotechnological approaches for...
Tipo: Journal article Palavras-chave: Bacteria; Bionanoparticles; Fermentation; Fungi green chemistry; Plant extracts.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000300011
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Cacau. Repositório Alice
GONÇALVES, J. R..
0
Tipo: Outras publicações científicas (ALICE) Palavras-chave: Cacau; Variedade; Cultivo; Colheita; Fermentação; Secagem; Doença; Cacao; Variety; Cultivation; Drying; Disease; Fermentation.
URL: http://www.alice.cnptia.embrapa.br/handle/doc/374176
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Características fermentativas da silagem de híbridos de sorgo sob doses de nitrogênio. Repositório Alice
FRANÇA, A. F. de S.; OLIVEIRA, R. de P.; RODRIGUES, J. A. S.; MIYAGI, E. S.; SILVA, A. G. da; PERON, H. J. M. C.; ABREU, J. B. R. de; BASTOS, D. de C..
Foram avaliadas as características fermentativas das silagens de quatro híbridos de sorgo forrageiro sob doses de nitrogênio, em função dos teores de matéria seca da matéria original (MSmo) e da silagem (MSs), proteína bruta da matéria original (PBmo) e da silagem (PBs), pH, ácido lático (AL), ácido acético (AC), ácido bútirico (AB), ácido propiônico (AP), densidades da silagem no momento de enchimento (Den) e na abertura dos silos (Dab), produção de gás (Gás) e efluentes (Efl). Utilizou-se o delineamento de blocos casualizados em esquema fatorial 4 x 3, com quatro repetições. Os cultivares foram 1F 305, 0369 267, 0369 255 e BR 700, sob três doses de N (0; 60 e 120 kg.ha-1). Foram observadas interações entre as doses de N e os híbridos avaliados em relação...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Adubação; Nitrogênio; Fermentação; Sorgo; Fertilizer application; Fermentation; Sorghum bicolor.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/902974
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Changes in the isoflavone profile and in the chemical composition of tempeh during processing and refrigeration. Repositório Alice
FERREIRA, M. P.; OLIVEIRA, M. C. N. de; MANDARINO, J. M. G.; SILVA, J. B. da; IDA, E. I.; CARRÃO-PANIZZI, M. C..
The objective of this work was to analyze changes in the isoflavone profile, determined by high performance liquid chromatography, at different processing stages and after refrigeration of tempeh. For tempeh production, clean soybean grains from cultivars BR 36 (low isoflavone content) and IAS 5 (high) were dehulled, and the separated cotyledons were hydrated and then cooked in boiling water for 30 min. Spores of the fungus were inoculated in the cooked and cooled cotyledons, and incubated at 32ºC for 6, 12, 18, and 24 hours in perforated polypropylene bags, for fermentation. The resulting tempeh was stored at 4ºC for 6, 12, 18, and 24 hours. After 24-hour fermentation, isoflavone glucosides were 50% reduced, and the aglycone forms in the tempeh from both...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Fermentation; Functional food; High performance liquid chromatography; Malonyl; Rhizopus microsporus var; Oligosporus; Aglycone.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/916141
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Changes in the isoflavone profile and in the chemical composition of tempeh during processing and refrigeration. Repositório Alice
FERREIRA, M. P.; OLIVEIRA, M. C. N. de; MANDARINO, J. M. G.; SILVA, J. B. da; IDA, E. I.; CARRÃO-PANIZZI, M. C..
2011
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Rhizopus microsporus var. oligosporus; Aglycone; Fermentation; Functional food; High performance liquid chromatography.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/920933
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Chemical and bromatological characteristics of elephant grass silages containing a mango by-product. Repositório Alice
RÊGO, M. M. T.; NEIVA, J. N. M.; RÊGO, A. C. do; CÂNDIDO, M. J. D.; CARNEIRO, M. do S. de S.; LOBO, R. N. B..
This study was carried out to evaluate the nutritive value of elephant grass (Pennisetum purpureum, Schum.) silages with the addition of 0, 4, 8, 12 and 16% dehydrated mango (Mangifera indica, L.) by-product (DMB), on the fresh matter basis. A randomized complete design with four replications was used. As experimental silos, 210L plastic drums were used. Dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HCEL), ether extract (EE), total carbohydrates (TC), non-fibrous carbohydrates (NFC), neutral detergent insoluble nitrogen (NDIN, % total N), acid detergent insoluble nitrogen (ADIN, % total N), pH values, ammoniacal nitrogen (% total N), lactic acid, acetic acid, butyric acid...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Manga; Fermentação; Pennisetum purpureum; Valor nutritivo; Subproduto; Pennisetum purpureum; Fermentation; Mangifera indica; Animal byproducts; Nutritive value.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/658098
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