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| 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 |
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| 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 |
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| 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 |
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| 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<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 |
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