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Journal of the Brazilian Chemical Society: Recent submissions

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Composition of Coffea canephora Varieties from the Western Amazon

Acre, Lucas B.; Viencz, Thayna; Francisco, Julyene S.; Rocha, Rodrigo B.; Alves, Enrique A.; Benassi, Marta T. (Sociedade Brasileira de Química, 2024-04-05)

This research aimed to compare the composition profiles of roasted Coffea canephora varieties (conilon, robusta, and intervarietal hybrids) grown in the Western Amazon. Ten coffees of each variety were evaluated. No ...
Authentication of Specialty Coffees from the Fluminense Northwest and Caparaó Regions (Brazil) Using UV-Vis Spectroscopy and Synthetic Samples Partial Least Square Discriminant Analysis (SS-PLS-DA)

Caldeira, Gabriel R. F.; Costa, Tayná O.; Nascimento, Marcia H. C.; Corradini, Patricia G.; Filgueiras, Paulo R.; Ferreira, Daniel C.; Ferreira, Daniel C. (Sociedade Brasileira de Química, 2024-02-09)

Caparaó and the Fluminense northwest regions are nationally recognized by the important contribution on coffee production and exportation. Adulterations involving specialty coffees result in a decrease in the quality of ...
Bioactive Diterpenes and Serotonin Amides in Cold-Pressed Green Coffee Oil (Coffea arabica L.)

Silva, Rodrigo M. V.; Brand, Ana Laura M.; Tinoco, Natalia A. B.; Freitas, Suely P.; Rezende, Claudia M. (Sociedade Brasileira de Química, 2024-02-09)

Cold pressing is an environment-friendly mechanical extraction for oils from seeds. In this work, cold-pressed green Arabica coffee oil was investigated related to the influence of the pressing variables (preheating, exit ...
Development of a Disposable Pipette Extraction Method Using Coffee Silverskin as an Adsorbent for Chromium Determination in Wastewater Samples by Solid Phase Extraction

Silva, Weida R.; Costa, Bruno E. S.; Batista, Alex D.; Alves, Vanessa N.; Coelho, Nivia M. M. (Sociedade Brasileira de Química, 2022-05-02)

A procedure using disposable pipette tips adapted for solid-phase extraction, known as DPX SPE, was used as an alternative way for the chromium determination in wastewater samples. DPX-SPE consists of a device which allows ...
Extracts of the Native Brazilian Tree Garcinia gardneriana Inhibit Urediniospore Germination of Coffee Leaf Rust Fungus

Silva, Ueveton P. da; Ferreira, Bruno W.; Sousa, Bianca L. de; Furlani, Gabriela M.; Barreto, Robert W.; Agrizzi, Ana Paula; Leite, João Paulo V.; Santos, Marcelo H. dos; Varejão, Eduardo V. V. (Sociedade Brasileira de Química, 2022-02-21)

The fungal Hemileia vastatrix is the causal agent of coffee leaf rust, one of the worst and devastating disease in coffee cultures worldwide. As a result of our research on natural products for the development of novel ...
Chemometric analysis of UV characteristic profile and infrared fingerprint variations of Coffea arabica green beans under different space management treatments

Terrile, Amélia E.; Marcheafave, Gustavo G.; Oliveira, Guilherme S.; Rakocevic, Miroslava; Bruns, Roy E.; Scarminio, Ieda S. (Sociedade Brasileira de Química, 2016)

Ultraviolet characteristic profiles and infrared spectroscopic (FTIR) fingerprints of green bean extracts of Coffea arabica L., cv. IAPAR 59, cultivated in two planting patterns, rectangular and square, and at two different ...
Solubility and bioaccessibility of Ba, Ca, Cr, Cu, Fe, Mg, Mn, P, Sr and Zn in slim coffee infusions by in vitro gastrointestinal digestion

Szymczycha-Madeja, Anna; Welna, Maja; Pohl, Pawel (Sociedade Brasileira de Química, 2015)

Solubility and bioaccessibility of Ba, Ca, Cr, Cu, Fe, Mg, Mn, P, Sr and Zn in slim coffees were investigated using an in vitro method. Two different compositions of solutions simulating gastric and intestinal juices were ...
Application of carbon composite adsorbents prepared from coffee waste and clay for the removal of reactive dyes from aqueous solutions

Santos, Davis C. dos; Adebayo, Matthew A.; Lima, Eder C.; Pereira, Simone F. P.; Cataluña, Renato; Sauier, Caroline; Thue, Pascal S.; Machado, Fernando M. (Sociedade Brasileira de Química, 2015)

A novel carbon composite was prepared from a mixture of coffee waste and clay with inorganic:organic ratio of 1.3 (CC-1.3). The mixture was pyrolysed at 700 °C. Considering the application of this adsorbent for removal of ...
Evaluation of the bioaccessability of Ca, Fe, Mg and Mn in ground coffee infusions by in vitro gastrointestinal digestion

Stelmach, Ewelina; Pohl, Pawel; Szymczycha-Madeja, Anna (Sociedade Brasileira de Química, 2014)

The bioaccessibility of Ca, Mg, Mn and Fe in ground coffee brews was assessed through in vitro gastrointestinal digestion with stomach and intestinal juice solutions (pepsin, pancreatin and bile salts). Absorption of metals ...
Spectroscopic and chromatographic fingerprint analysis of composition variations in Coffea arabica leaves subject to different light conditions and plant phenophases

Delaroza, Fernanda; Rakocevic, Miroslava; Malta, Galileu Bernardes; Bruns, Roy Edward; Scarminio, Ieda Spacino (Sociedade Brasileira de Química, 2014)

Fingerprints of self-shaded and sunlight-exposed leaves of the same Coffea arabica plant were obtained to determine metabolic concentration changes owing to different light environments and phenological stages. Leaf extract ...
Ambient mass spectrometry employed for direct analysis of intact arabica coffee beans

Garrett, Rafael; Schwab, Nicolas V.; Cabral, Elaine C.; Henrique, Brenno V. M.; Ifa, Demian R.; Eberlin, Marcos N.; Rezende, Claudia M. (Sociedade Brasileira de Química, 2014)

The ambient ionization mass spectrometry techniques: desorption electrospray ionization (DESI) and easy ambient sonic-spray ionization (EASI) were explored as fast and simple ways to directly analyze the surface of intact ...
Comparison of extraction methods for kahweol and cafestol analysis in roasted coffee

Dias, Rafael C. E.; Faria, Adelia F. de; Mercadante, Adriana Z.; Bragagnolo, Neura; Benassi, Marta de T. (Sociedade Brasileira de Química, 2013)

Kahweol and cafestol, diterpenes from the unsaponifiable fraction of coffee, present known effects on human health such as anticarcinogenic and hipercholesterolemic activities. There are discrepancies regarding the levels ...
Discrimination of commercial roasted and ground coffees according to chemical composition

Souza, Romilaine M. N. de; Benassi, Marta T. (Sociedade Brasileira de Química, 2012)

Roasted and ground 38 commercial coffees and coffees of known species (arabica, robusta) were characterized by principal component analysis using as variables nicotinic acid, trigonelline, 5-o-caffeoylquinic acid (5-CQA), ...
Comparative study of metal contents in Brazilian coffees cultivated by conventional and organic agriculture applying principal component analysis

Santos, José S. dos; Santos, Maria Lúcia P. dos; Conti, Melina M. (Sociedade Brasileira de Química, 2010)

The aim of this study was to evaluate of availability of nutrients and toxic elements in green coffees produced in traditional, technological and transitional organic farms in Southwest BahiaBrazil. Levels of the nutrients ...
Green and roasted arabica coffees differentiated by ripeness, process and cup quality via electrospray ionization mass spectrometry fingerprinting

Amorim, Ana Carolina L.; Hovell, Ana Maria C.; Pinto, Angelo C.; Eberlin, Marcos N.; Arruda, Neusa P.; Pereira, Elenilda J.; Bizzo, Humberto R.; Catharino, Rodrigo R.; Morais Filho, Zenildo B.; Rezende, Claudia M. (Sociedade Brasileira de Química, 2009)

Direct infusion electrospray ionization mass spectrometry in both the negative ESI(-)-MS and positive ESI(+)-MS ion modes are investigated to differentiate green and roasted Arabica coffees with different stages of ripeness ...
Age and time related pheromone production in coffee leafminer Leucoptera coffeella Guérin-Méneville (Lepidoptera: Lyonetiidae)

Lima, Eraldo R.; Vilea, Evaldo F.; Lucia, Terezinha M. C. Della; Ataíde, Lívia M. S. (Sociedade Brasileira de Química, 2008)

This study was undertaken to access the pattern of sex pheromone production in glands of virgin females of Leucoptera coffeella as an indirect measure of the calling behavior. The major compound, 5,9-dimethylpentadecane ...
The use of fatty acid profile as a potential marker for brazilian coffee (Coffea arabica L.) for corn adulteration

Jham, Gulab N.; Berhow, Mark A.; Manthey, Linda K.; Palmquist, Deborah A.; Vaughn, Steven F. (Sociedade Brasileira de Química, 2008)

Fatty acid methyl ester (FAME) composition of the coffee (Coffea arabica L.) varieties Catuai, Catucaí, Bourbom, Mundo Novo, Rubí and Topázio known to produce beverage of intermediate, excellent, excellent, intermediate, ...
Comparative studies of the sample decomposition of green and roasted coffee for determination of nutrients and data exploratory analysis

Amorim Filho, Volnei R.; Politoa, Wagner L.; Gomes Neto, José A. (Sociedade Brasileira de Química, 2007)

The contents of some nutrients in 35 Brazilian green and roasted coffee samples were determined by flame atomic absorption spectrometry (Ca, Mg, Fe, Cu, Mn, and Zn), flame atomic emission photometry (Na and K) and Kjeldahl ...
Sistematic study of benzo[a]pyrene in coffee samples

Badolato, Elza S. G.; Martins, Maristela S.; Aued-Pimentel, Sabria; Alaburda, Janete; Kumagai, Edna E.; Baptista, Gisleine G.; Rosenthal, Amaury (Sociedade Brasileira de Química, 2006)

A method for extracting and quantifying benzo[a]pyrene (B[a]P) was evaluated and improved for samples of green and roasted ground Arabica (Coffea arabica) and Conillon (Coffea canephora) Brazilian coffees. The influence ...
Evaluation of the metabolic profile of arabica coffee via NMR in relation to the time and temperature of the roasting procedure

Alves, Roger P.; Antoniosi Filho, Nelson R.; Lião, Luciano M.; Flores, Igor S. (Sociedade Brasileira de Química, 2021)

Coffee is one of the most popular and consumed products in the world, with high nutritional value and economic importance. However, some factors can change the organoleptic properties of a coffee species, without causing ...