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Screening of Brazilian fruit aromas using solid-phase microextraction-gas chromatography-mass spectrometry.
Manual headspace solid-phase microextraction (SPME) coupled to gas chromatography-mass spectrometry (GC-MS) was used for the qualitative analysis of the aromas of four native Brazilian fruits:Expand
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New materials and trends in sorbents for solid-phase extraction
Abstract In this article, we outline and discuss some of the most recent tendencies on the research related to novel sorbent materials for solid-phase extraction (SPE). Hemimicelles and admicellesExpand
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Exploratory analysis of the volatile profile of beers by HS–SPME–GC
Kohonen Neural Network maps were used for exploratory analysis of Brazilian Pilsner beers. The input data consisted of the peak areas of the volatile profile compounds of samples obtained afterExpand
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Prediction models for Arabica coffee beverage quality based on aroma analyses and chemometrics.
In this work, soft modeling based on chemometric analyses of coffee beverage sensory data and the chromatographic profiles of volatile roasted coffee compounds is proposed to predict the scores ofExpand
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Comparison of stir bar sorptive extraction and membrane-assisted solvent extraction as enrichment techniques for the determination of pesticide and benzo[a]pyrene residues in Brazilian sugarcane
The present work compares two modern and environmentally friendly enrichment techniques, stir bar sorptive extraction (SBSE) and membrane-assisted solvent extraction (MASE) for the determination ofExpand
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Volatile organic compounds produced by Saccharomyces cerevisiae inhibit the in vitro development of Guignardia citricarpa, the causal agent of citrus black spot
Due to the low chemical control effectiveness of citrus black spot, caused by the fungus Guignardia citricarpa at postharvest, and to the search for alternative control methods, this study aimed toExpand
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Neuro-genetic multioptimization of the determination of polychlorinated biphenyl congeners in human milk by headspace solid phase microextraction coupled to gas chromatography with electron capture
Polychlorinated biphenyls (PCB) can eventually contaminate breast milk, which is a serious issue to the newborn due to their high vulnerability. Solid phase microextraction (SPME) can be a veryExpand
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Biorremediação de solos contaminados por petróleo e seus derivados
In view of the proven efficiency of bioremediation in the degradation of compounds toxic to humans, such as benzene, toluene, ethylbenzene and xylenes (BTEX), several companies, especially thoseExpand
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Volatiles Identification in Pineapple Submitted to Drying in an Ethanolic Atmosphere
Pineapple slices were dried under normal and modified atmosphere in a lab-scale tunnel dryer. The atmosphere was modified by addition of 0.5% ethanol v/v to the air stream using two differentExpand
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Recuperação da área degradada pelo lixão Areia Branca de Espírito Santo do Pinhal – SP
O municipio de Espirito Santo do Pinhal - SP gera em torno de cinquenta toneladas de lixo por semana, os quais eram dispostos em area de “lixao” desde 1960 ate 2000, quando essa pratica foi proibida,Expand
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