Consulta: subjectFacets:"Furfural"
Registros recuperados: 6
Data/hora: 15/06/2024 21:17:12

Inhibitor tolerance and flocculation of a yeast strain suitable for second generation bioethanol production
Provedor de dados: 69
Autores: Westman,Johan O; Taherzadeh,Mohammad J; Franzén,Carl Johan.
Background: Robust second generation bioethanol processes require microorganisms able to ferment inhibitory lignocellullosic hydrolysates. In this study, the inhibitor tolerance and flocculation characteristics of Saccharomyces cerevisiae CCUG53310 were evaluated in comparison with S. cerevisiae CBS8066. Results: The flocculating strain CCUG53310 could rapidly ferment all hexoses in dilute acid spruce hydrolysate, while CBS8066 was strongly inhibited in this medium. In synthetic inhibitory media, CCUG53310 was more tolerant to carboxylic acids and furan aldehydes, but more sensitive than CBS8066 to phenolic compounds. Despite the higher tolerance, the increase in expression of the YAP1, ATR1 and FLR1 genes, known to confer resistance to...
Tipo: Journal article
Palavras-chave: Biofuel; Furfural; Lignocellulose; Phenolic inhibitors; Saccharomyces cerevisiae.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000300005

Comparative study on the integrated application of environmental friendly compounds and a chemical- nematicide in controlling root knot nematode Meloidogyne incognita infecting sunflower plants; a field study
Provedor de dados: 111
Autores: Mohamed, Moawad.
A field study was set up at Kafre – Hakim village, Giza, Governorate, Egypt, to compare the protective value of applying environmental friendly compounds with a known chemical nematicide, oxamyl, for controlling the nematode Meloidogyne incognita infecting sunflower cv. Sakha 53  and their effects on crop production and oil contents. These compounds were 1) furfural,a natural nematicide, 2) amino green 11, commercial formula of amino acids, 3) NPK, an inorganic fertilizer. Data revealed that all the tested treatments resulted in variable significant decrease in root knot disease incidence associated with improvement in crop yield except the plants treated with furfural plus amino green 11 that showed significant decrease in percentage of oil content. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Root-knot nematode; Meloidogyne incognita; Amino acids; Furfural; Oxamyl; Eggplant.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4422

Integrated control of the nematode Meloidogyne incognita infecting eggplant and effects on associated weeds and crop yield; a field study
Provedor de dados: 111
Autores: Mohamed, Moawad.
Integrated regimes were conducted during the season 2015-2016 at kafre Hakim village Giza Governorate. The aim was to evaluate the protective efficiency of combinations of different environment- friendly compounds; indole acetic acid (IAA), Furfural, urea as well as the herbicide pendimethalin to control root knot nematode Meloidogyne incognita infecting eggplant and associated annual broad leaf and annual grasses weeds, and their effects on crop production. Data revealed that all the tested treatments resulted in variable significant decrease in root knot nematode reproductive parameters, associated weeds and improvement in eggplant production. The tested parameters were; initial and final populations, number of galls, number of egg masses, fresh and dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Root –knot nematode; Meloidogyne incognita; Eggplant; IAA; Organic fertilizer; Furfural; Pendimethalin control.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4421

Tolerance of native Magellan fungi in peat to anthracene and n-dodecane for potential use in bioremediation
Provedor de dados: 118
Autores: Rodríguez-Córdova,Leonardo A; Sáez-Navarrete,César A; Ishanoglu,Vartan; Herrera,Leandro; Ginocchio,Rosanna.
Tolerance of Magellan fungi in peat to anthracene and n-dodecane for potential use in bioremediation. Cien. Inv. Agr. 43(1):85-93. The tolerances of filamentous Magellan fungi in peat were analyzed in the presence of structurally different petroleum hydrocarbons to assess their abilities for bioremediation in contaminated soils. Fungi on PDA (potato dextrose agar) and fresh peat plates were cultured and purified. The morphologically identified species were grown in a hydrocarbon adapted-fungi (HAF) medium. Increasing concentrations of anthracene, n-dodecane and furfural were applied to observe tolerances based on the radial growth kinetics of hyphae. The results showed that the radial growths of hyphae in anthracene reached average speeds of 10.95 ± 1.21,...
Tipo: Journal article
Palavras-chave: Anthracene; Contaminated sites; Filamentous fungi; Furfural; Magellan peat; N-dodecane.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000100008

Carbonyl compounds in wine: factors related to presence and toxic effects
Provedor de dados: 65
Autores: Lago,Laura Oliveira; Welke,Juliane Elisa.
ABSTRACT: The objective of this study was to review technological and toxicological factors related to presence of carbonyl compounds found in wines, including acetaldehyde, formaldehyde, acrolein, ethyl carbamate (EC) and furfural. Acetaldehyde and formaldehyde may be formed through the ethanol and methanol oxidation, respectively. Acrolein may arise as a thermal degradation product of glycerol, amino acids, carbohydrates and triglycerides or by metabolic activity of microorganisms. In addition, acrolein and furfural are formed during wood combustion; therefore, these aldehydes may be present in raw materials due to the environmental contamination. Furfural is also a product of the Maillard reaction formed from sugars and amino acids, while ethyl...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetaldehyde; Formaldehyde; Ethyl carbamate; Furfural; Acrolein.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000800751

Parâmetros físico-químicos e cromatográficos em aguardentes de cana queimada e não queimada
Provedor de dados: 64
Autores: Masson,José; Cardoso,Maria das Graças; Vilela,Fernando José; Pimentel,Flávio Araujo; Morais,Augusto Ramalho de; Anjos,Jeancarlo Pereira dos.
Este trabalho teve por objetivo avaliar as concentrações de furfural, álcoois superiores, ésteres, aldeídos, cobre, acidez volátil, metanol e grau alcoólico de aguardentes obtidas de cana, com e sem queima prévia. Foram utilizadas amostras de aguardente artesanal de cana queimada e não queimada, fermentadas com a mesma levedura e destiladas no mesmo destilador; amostras de produtor de aguardente industrial de cana queimada e amostras obtidas de outro produtor artesanal de cana não queimada. As análises físico-químicas e cromatográficas (CG) foram realizadas no Laboratório de Análise Físico-Química de Aguardente - LAFQA/DQI na Universidade Federal de Lavras. As concentrações de furfural apresentaram diferença significativa (P&lt;0,01), entre os grupos de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cachaça; Cana queimada; Cana não queimada; Característica físico-química; Furfural.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542007000600030