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| CAPOBIANGO,Michely; DINIZ,Isabela Maia; ANDRE,Leiliane Coelho; OLIVEIRA,Evelyn de Souza; CARDEAL,Zenilda de Lourdes. |
| Abstract Banana characteristics could provide yeast growth and support the action of yeast to produce beverages. The effects of enzymatic treatment, centrifugation, commercial yeast and two selected strains of Saccharomyces cerevisiae were investigated using the fermented banana Terra. Volatile organic compounds (VOCs) were determined by solid phase microextraction using gas chromatography mass spectrometry. The results showed that the condition employing enzymatic treatment, centrifugation and wet commercial yeast provided maximum ethanol yield (86%) and effiency (98%). Twenty-two compounds of distinct chemical classes were analysed including alcohols, esters, acids and aldehydes. The concentrations of the VOCs differed depending on the fermentation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fermented banana; Volatile composition; GC/MS; SPME. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612016000300510 |
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| Mendoza Peña, Estrella. |
| El Huanglongbing (HLB) es una enfermedad de los cítricos que se caracteriza por causar áreas moteadas en hojas, generar frutos deformes y decolorados, semillas abortivas, causar pérdida paulatina de la producción y provocar que la muerte de los árboles infectados sea inevitable. El agente asociado a esta enfermedad es la bacteria Candidatus Liberibacter ssp., y en México es dispersada por el vector Diaphorina citri Kuwayama (Hemiptera: Liviidae). En el presente estudio, mediante el método de microextracción en fase solida (SPME) se recolectaron compuestos volátiles emitidos de brotes vegetativos (menores a 3 cm) sanos, así como de brotes infectados con Ca. L. asiaticus, de limón persa (Citrus latifolia Tanaka) y limón mexicano (Citrus aurantifolia... |
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Palavras-chave: Cítricos; SPME; Psílido asiático; B-ocimeno; D-limoneno; Brotes vegetativos; Citrus; Psyllid; B-ocimene; D-limonene; Vegetative shoots; Entomología y Acarología; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2155 |
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| SILVA, F. A. N.; SILVA, A. A.; FERNANDES, N. S.; RODRIGUES, T. H. S.; CANUTO, K. M.; NASCIMENTO, R. F.; BRITO, E. S. de; ARAGAO, F. A. S. de; FREITAS, B. M.; ZOCOLO, G. J.. |
| bitstream/item/187629/1/ART18077.pdf |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: VOCs; Headspace; Flor de melão; SPME; GC-MS; Melão; Melons. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099467 |
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| Pionnier, E.; Sémon, E.; Chabanet, C.; Salles, C.. |
| Une méthode de couplage microextraction sur phase solide/chromatographie en phase gazeuse/spectrométrie de masse (SPME-GC-MS) a été utilisée comme alternative à l'analyse par API-MS des effluves nasales pour suivre la libération de composés d'arômes présents dans l'air expiré pendant la dégustation d'un fromage modèle aromatisé avec du diacétyle, de l'heptan-2-one, de l'hexanoate d'éthyle, de l'heptan-2-ol, de l'acide propanoïque et de l'acide butanoïque. Cinq types de fibres possédant un greffage différent ont été évalués pour leur sélectivité, sensibilité, stabilité et les phénomènes de compétition. Parmi ceux-ci, la fibre greffée avec un polymère de type polydiméthylsiloxane (PDMS) était la plus appropriée. Une méthode basée sur un temps... |
| Tipo: Journal Article |
Palavras-chave: SPME; PDMS; NOSESPACE; FLAVOR; API-MS; MODEL CHEESE. |
| Ano: 2005 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200874abac5c&uri=/notices/prodinra1/2008/11/ |
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| Valduga,Eunice; Valerio,Alexsandra; Treichel,Helen; Nascimento Filho,Irajá; Fúrigo Júnior,Agenor; Di Luccio,Marco. |
| The aim of the present study was the assessment of volatile organic compounds produced by Sporidiobolus salmonicolor (CBS 2636) using methyl and ethyl ricinoleate, ricinoleic acid and castor oil as precursors. The analysis of the volatile organic compounds was carried out using Head Space Solid Phase Micro-Extraction (HS - SPME). Factorial experimental design was used for investigating extraction conditions, verifying stirring rate (0-400 rpm), temperature (25-60 ºC), extraction time (10-30 minutes), and sample volume (2-3 mL). The identification of volatile organic compounds was carried out by Gas Chromatography with Mass Spectrum Detector (GC/MSD). The conditions that resulted in maximum extraction were: 60 ºC, 10 minutes extraction, no stirring, sample... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bio-production; Sporidiobolus salmonicolor; SPME; Aroma; Experimental design. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000400023 |
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| Rocha, Sílvia; Martins, Vitor Manuel Ramalheira; Barros, António; Delgadillo, Ivonne; Coimbra, Manuel A.. |
| The application of headspace solid phase microextraction (SPME) for flavor analysis has been studied. Headspace SPME sampling was tested for nine common wine flavor compounds in 10% (v/v) aqueous ethanol: linalool, nerol, geraniol, 3-methyl-1-butanol, hexanol, 2-phenylethanol, ethyl hexanoate, ethyl octanoate, and ethyl decanoate. The chemical groups (monoterpenoids, aliphatic and aromatic alcohols, and esters) showed specific behavior in SPME analysis. SPME sampling parameters were optimized for these components. Relative response factors (RRFs), which establish the relationship between the concentration of the compound in the matrix liquid solution and the GC peak area, were estimated for all compounds. Log10(RRF) varied from 0 (3-methyl-1-butanol) to 3... |
| Tipo: Article |
Palavras-chave: SPME; Flavor compounds. |
| Ano: 2001 |
URL: http://hdl.handle.net/10198/4372 |
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| Avand-Faghih, A.; Frerot, B.. |
| By using solid phase micro-extraction and gas chromatography-mass spectrometry analyses, a sex pheromone blend for the stem borer, Sesamia cretica Lederer (Lepidoptera, Noctuidae), was identified as consisting of (Z)-9-tetradecen-1-ol (80%), (Z)-9-tetradecen-1-yl acetate (10%), and (Z)-11-hexadecen-1-ol (10%). The first two components had previously been discovered as attractants for S. cretica in field tests, but had not been identified in the female's sex pheromone gland. A field-trapping trial showed that the three-component blend gave the highest catches of male S. cretica. This blend, in a sticky trap, was used to monitor a population of S. cretica in Iran, allowing the seasonal flight activity of this insect to be compared with that of a sympatric... |
| Tipo: Journal Article |
Palavras-chave: PHEROMONE SEXUELLE; INSECTE; TECHNIQUE ANALYTIQUE; MICROEXTRATION; CHROMATOGRAPHIE GAZEUSE; SPECTROMETRIE DE MASSE; ATTRACTIF SEXUEL SESAMIA CRETICA; STEM BORER; SEX PHEROMONE; SPME; (Z)-11-HEXADECEN-1-OL; TRAPPING; SYMPATRIC SPECIES; LEPIDOPTERA; NOCTUIDAE. |
| Ano: 2008 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010d0341539&uri=/notices/prodinra1/2010/09/ |
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| BRILHANTE, N. S.; BIZZO, H. R.; MACHADO, A. F. de F.; SANTOS, M. C. da S.; GAMA, P. E.. |
| Olive oil consists mainly of triglycerides, in about 97 to 99% by weight. The minor compounds are a complex mixture of polar, apolar and amphiphilic substances, such as tocopherols, phenolic compounds, sterols, chlorophyll, carotenoids, terpene acids, monoglycerides and diglycerides, free fatty acids and volatile compounds. These volatiles are the compounds directly responsible for the aroma of the oil. Extra virgin olive oil has a complex aroma with more than 100 volatile compounds identified, among aldehydes, alcohols, esters, hydrocarbons, ketones and furans. The objective of this study was to develop an analytical method for volatile compounds in olive oils using solid-phase microextraction (SPME), gas chromatography coupled to mass spectrometry... |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: SPME; GC-FID; GC-MS; Olive oil; Volatile compounds. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1109353 |
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| TERRA, L. R.; QUEIROZ, S. C. do N. de; TERAO, D.; FERREIRA, M. M. C.. |
| O Brasil destaca-se como um dos maiores produtores de mamão papaia (Carica papaya) e a exportação tem crescido nos últimos anos. Entretanto, doenças pós-colheita, causadas por fungos, são motivos de enorme preocupação pelos exportadores, uma vez que geram grandes prejuízos. Metodologias convencionais de detecção e classificação de fungos são morosas e trabalhosas e só podem ser feitas a partir da manifestação de sintomas nas frutas. Assim, há a necessidade de desenvolver métodos que possibilitem a diagnose precoce da presença de fungos, que sejam rápidos, eficientes e que possibilitem a classificação qualitativa de um determinado lote de frutas. Com isso, espera-se que possam tomar decisões acertadas sobre o destino do produto. A análise de voláteis é uma... |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Mamão; Cromatografia; SPME; CCD; Metabolômica; Carica Papaya. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116382 |
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| Chopin, Christine; Kone, Matenin; Serot, Thierry. |
| The aim of this study was to assess the modifications of fish myosin induced by interactions with four aldehydes: hexanal, 2-hexenal, 2,4-hexadienal, and 2,6-nonadienal. These compounds are generated during lipid oxidation and are known to have an impact on the functional properties of proteins. The interactions between protein and aldehydes were highlighted by measuring the content of aldehydes in the gaseous phase by the SPME-GC technique. Results show that the partition of aldehydes between the proteinaceous system and the gas phase decreases with time, except for hexanal. This decrease is proportional to the number of carbons and double bonds. The reaction between myosin and unsaturated aldehydes induces a decrease in the free sulfhydryl and amino... |
| Tipo: Text |
Palavras-chave: SPME; Interactions; Aldehydes; Fish myosin. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2676.pdf |
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| Felix, A.E.; Genestier, G.; Malosse, C.; Calatayud, P.-A.; Le Rü, B.; Silvain, J.-F.; Frerot, B.. |
| The relationship between pheromone composition and mitochondrial haplotype clades was investigated by coupling DNA analyses with pheromone identification and male mate searching behavior among different geographic populations of Busseola fusca. The within-population variations in pheromone blend were as great as those observed between geographic populations, suggesting that the female sex pheromone blend was not the basis of reproductive isolation between the geographic clades. Furthermore, while data from wind tunnel experiments demonstrated that most of the tested males were sensitive to small variations in pheromone mixture, there was considerable within-population variability in the observed response. The study identified a new pheromone component,... |
| Tipo: Journal Article |
Palavras-chave: PHEROMONE; INSECTE; ADN; TECHNIQUE ANALYTIQUE; SPECTROMETRIE DE MASSE; CHROMATOGRAPHIE GAZEUSE; MITOCHONDRIE; INSECTE NUISIBLE; COMPORTEMENT ANIMAL LEPIDOPTERA; NOCTUIDAE; SPME; GC-MS; SYNTHETIC PHEROMONE; WIND TUNNEL; FIELD TRAPPING; REPRODUCTIVE ISOLATION; CLADE. |
| Ano: 2009 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010b0720796&uri=/notices/prodinra1/2010/09/ |
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| Registros recuperados: 24 | |
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