Search results

Items from 1 to 19 out of 19 results

article

Chemical sensory investigation in green and roasted beans Coffea arabica L. (cv. Yellow Bourbon) by various brewing methods using electronic sensors

Hyangyeon Jeong, Sojeong Yoon, Seong Min Jo, Seong Jun Hong, more

Journal of Food Science > 88 > 3 > 1033 - 1047

This study investigated the effects of four brewing methods (cold and hot brew, espresso, and cezve) on the chemical sensory properties of green and roasted coffee beans (cv. Yellow Bourbon) extract. The caffeine and chlorogenic acid contents of the coffee were analyzed using HPLC. The taste and volatile aromatic compounds of coffee were analyzed using an electronic tongue and nose, respectively,...

article

Genetic and chemical control of coffee rust (Hemileia vastatrix Berk et Br.): impacts on coffee (Coffea arabica L.) quality

Dyanna R Pereira, Denis HS Nadaleti, Eduardo C Rodrigues, Ackson D Silva, more

Journal of the Science of Food and Agriculture > 101 > 7 > 2836 - 2845

BACKGROUND The occurrence of diseases can alter coffee (Coffea arabica L.) metabolism, causing changes in the composition of coffee beans and beverage quality. However, little is known about which aspects of coffee quality are actually altered by rust (Hemileia vastatrix Berk et Br.) and by its main control methods. The effect of chemical and genetic methods for the control of coffee rust on the...

article

Ecological outcomes of agroforests and restoration 15 years after planting

Carolina Giudice Badari, Luis Eduardo Bernardini, Danilo R. A. Almeida, Pedro H. S. Brancalion, more

Restoration Ecology > 28 > 5 > 1135 - 1144

Large‐scale forest restoration relies on approaches that are cost‐effective and economically attractive to farmers, and in this context agroforestry systems may be a valuable option. Here, we compared ecological outcomes among (1) 12–15‐year‐old coffee agroforests established with several native shade trees, (2) 12–15‐year‐old high‐diversity restoration plantations, and (3) reference old‐growth forests,...

article

Sensory analysis and fatty acid profile of specialty coffees stored in different packages

Flávio Meira Borém, Fabiana Carmanini Ribeiro, Luisa Pereira Figueiredo, Gerson Silva Giomo, more

Journal of Food Science and Technology > 2019 > 56 > 9 > 4101-4109

The conservation of the quality of special coffees depends on the storage conditions. Therefore, new technologies for the packaging of grains need to be studied. This work was carried out with the objective of evaluating the effect of different packages on the quality of the stored coffee. The free fatty acid profile, fat acidity and sensory characteristics of the grains were analyzed during storage...

article

Seasonal and altitudinal differences in coffee leaf rust epidemics on coffee berry disease-resistant varieties in Southwest Ethiopia

Gerba Daba, Kenny Helsen, Gezahegn Berecha, Bart Lievens, more

Tropical Plant Pathology > 2019 > 44 > 3 > 244-250

Coffea arabica is native to the Afromontane forests of southwestern Ethiopia, the leading African country in Arabica coffee production. The intensity of coffee leaf rust (CLR), a fungal disease of growing concern to coffee farmers, was assessed in eight coffee berry disease-resistant C. arabica varieties planted at three different altitudes. Disease variables assessed were CLR prevalence (percent...

article

Mapping the potential beverage quality of coffee produced in the Zona da Mata, Minas Gerais, Brazil

Samuel de Assis Silva, Daniel Marçal de Queiroz, Williams Pinto Marques Ferreira, Paulo Cesar Corrêa, more

Journal of the Science of Food and Agriculture > 96 > 9 > 3098 - 3108

BACKGROUNDDetailed knowledge of coffee production systems enables optimization of crop management, harvesting and post‐harvest techniques. In this study, coffee quality is mapped as a function of coffee variety, altitude and terrain aspect attributes. The work was performed in the Zona da Mata, Minas Gerais, Brazil. RESULTSA large range of coffee quality grades was observed for the Red Catuai variety...

article

Effects of Epoxiconozale and Pyraclostrobin Fungicides in the Infection Process of Hemileia vastatrix on Coffee Leaves as Determined by Chlorophyll a Fluorescence Imaging

Jaime Honorato Júnior, Laércio Zambolim, Henrique Silva Silveira Duarte, Carlos Eduardo Aucique‐Pérez, more

Journal of Phytopathology > 163 > 11-12 > 968 - 977

Coffee is the most traded commodity in the world, and Brazil is its largest producer. Coffee leaf rust, caused by the biotrophic fungus Hemileia vastatrix, is the most important coffee disease, reducing coffee yield by 35–50%. This study aimed to use the ratio of variable and maximum fluorescence of dark‐adapted tissue (F_v/F_m) as a parameter to differentiate presymptomatic tissue from healthy tissue...

article

Coffee productivity and root systems in cultivation schemes with different population arrangements and with and without drip irrigation

Emilio Sakai, Eduardo Augusto Agnellos Barbosa, Jane Maria de Carvalho Silveira, Regina Célia de Matos Pires

Agricultural Water Management > 2015 > 148 > Complete > 16-23

This study addressed the vegetative development, yield, and root development of coffee during cultivation in the absence and presence of drip irrigation and in different population arrangements over five years. A 6×2 factorial experimental scheme was used with a randomized block design and four replications. The six plantation densities were 1.60×0.50m; 1.60×0.75m; 1.60×1.00m; 3.20×0.50m; 3.20×0.75m;...

article

Potential markers of coffee genotypes grown in different Brazilian regions: A metabolomics approach

José Henrique da Silva Taveira, Flávio Meira Borém, Luísa Pereira Figueiredo, Nádia Reis, more

Food Research International > 2014 > 61 > Complete > 75-82

Seeds from different coffee species and coffee from different continents or countries have very distinct chemical composition. However, the differences between genotypes grown at micro-regional levels with similar geographical characteristics are still unclear. In this study, we highlighted the need of using metabolite profiling instead of the usual targeted analysis as a more powerful tool to describe...

article

Water sorption properties of coffee fruits, pulped and green coffee

A.L.D. Goneli, P.C. Corrêa, G.H.H. Oliveira, P.C. Afonso Júnior

LWT - Food Science and Technology > 2013 > 50 > 2 > 386-391

Thermodynamic properties of coffee in three different forms (green, pulped and coffee fruit) were obtained during the desorption process. Desorption was accomplished by static method using saturated salt solutions, providing relative humidity range of 11–95%. Five different temperatures were utilized (10, 20, 30, 40 and 50 °C). Equilibrium moisture content data were correlated by the Guggenheim–Anderson–de...

article

Evaluation of the sensory and color quality of coffee beans stored in hermetic packaging

Flávio Meira Borém, Fabiana Carmanini Ribeiro, Luisa Pereira Figueiredo, Gerson Silva Giomo, more

Journal of Stored Products Research > 2013 > 52 > Complete > 1-6

The objective this study was to commercially validate the effects of an artificial atmosphere on the color, flavor and aroma of green coffee beans stored after 12 months. The coffees were evaluated by a sensory panel composed of 13 tasters who were judges certified by the Specialty Coffee Association of America and who operate commercially in various coffee-producing regions of Brazil. The evaluation...

article

Cultural and Aggressiveness Variability of Cercospora coffeicola

André G. C. Souza, Luiz A. Maffia, Eduardo S. G. Mizubuti

Journal of Phytopathology > 160 > 10 > 540 - 546

Although brown eye spot of coffee, caused by Cerco‐spora coffeicola, is important for coffee production in Brazil, there is a general lack of knowledge regarding the disease. In this study, we evaluated the variability of both the cultural and aggressiveness traits of 60 isolates from coffee plants grown under conventional and organic systems in three regions of Minas Gerais State, Brazil. Variability...

article

Storage of green coffee in hermetic packaging injected with CO2

Fabiana Carmanini Ribeiro, Flávio Meira Borém, Gerson Silva Giomo, Renato Ribeiro De Lima, more

Journal of Stored Products Research > 2011 > 47 > 4 > 341-348

The objective of this study was to evaluate the physical, chemical, and sensory qualities of green coffee beans (Coffea arabica L.) during storage in different types of packaging. Coffee was stored from October 2008 to September 2009 in a warehouse of the Agriculture Society Ltda. (SAAG) in Santana da Vargem, southern Minas Gerais State, Brazil. The treatments in the factorial design consisted of...

article

Infection Process of Cercospora coffeicola on Coffee Leaf

André Gomes Coelho Souza, Fabrício Ávila Rodrigues, Luiz Antônio Maffia, Eduardo Seiti Gomide Mizubuti

Journal of Phytopathology > 159 > 1 > 6 - 11

Brown eye spot, caused by Cercospora coffeicola, is an important disease of coffee. Both adaxial and abaxial leaf surfaces were inoculated with a conidial suspension of C. coffeicola. Samples were collected from 4 to 168 h after inoculation and then again at 35 days. Germinated conidia showed positive tropism to stomata where attempted penetrations occurred. Appressoria were not observed. After penetration,...

article

Alterations in chlorophyll a fluorescence, pigment concentrations and lipid peroxidation to chilling temperature in coffee seedlings

Jurandi Gonçalves de Oliveira, Pedro Luís da Costa Aguiar Alves, Angela Pierre Vitória

Environmental and Experimental Botany > 2009 > 67 > 1 > 71-76

Coffea arabica L. is considered to be sensitive to low temperatures throughout its life cycle. In some Brazilian regions, seedling production occurs under shade conditions and during the winter, with average temperatures of around 10°C. The formation and functioning of the photosynthetic apparatus are strongly controlled by temperature. This study aimed to assess the changes that occurred in pigment...

article

Chemical effects on the soil–plant system in a secondary treated wastewater irrigated coffee plantation—A pilot field study in Brazil

Uwe Herpin, Thomas Vincent Gloaguen, Adriel Ferreira da Fonseca, Célia Regina Montes, more

Agricultural Water Management > 2007 > 89 > 1-2 > 105-115

Wastewater reuse in agriculture is recognized worldwide as an alternative water and/or nutrient source. In this study, secondary treated wastewater (STW) from an anaerobic/facultative pond system at the city of Lins (São Paulo State, Brazil) was used over 3 years and 7 months to irrigate coffee (Coffea arabica L.). The soil type was Typic Haplustox and the crops were fertilized according to regional...

article

Purification and characterisation of adenosine nucleosidase from Coffea arabica young leaves

Alexandre Campos, Maria J. Rijo-Johansen, Maria F. Carneiro, Pedro Fevereiro

Phytochemistry > 2005 > 66 > 2 > 147-151

An adenosine nucleosidase (ANase) (EC 3.2.2.7) was purified from young leaves of Coffea arabica L. cv. Catimor. A sequence of fractionating steps was used starting with ammonium sulphate salting-out, followed by anion exchange, hydrophobic interaction and gel filtration chromatography. The enzyme was purified 5804-fold and a specific activity of 8333 nkatmg ⁻¹ protein was measured. The native...

article

Inter-simple sequence repeat (ISSR) variation in forest coffee trees ( L.) populations from Ethiopia

Esayas Aga, Endashaw Bekele, Tomas Bryngelsson

Genetica > 2005 > 124 > 2 > 213-221

Genetic variation of forest coffee trees (Coffea arabica L.) from four regions of Ethiopia was investigated using inter-simple sequence repeat (ISSR) markers. A total of 160 individuals representing 16 populations were sampled. Eleven ISSR primers amplified a total of 123 fragments of which 31 fragments (25%) were polymorphic. Estimate of total gene diversity (HT), and the coefficient of genetic differentiation...

article

Aluminium differentially modifies lipid metabolism from the phosphoinositide pathway inCoffea arabica cells

Manuel Martínez-Estévez, Graciela Racagni-Di Palma, J. Armando Muñoz-Sánchez, Ligia Brito-Argáez, more

Journal of Plant Physiology > 2003 > 160 > 11 > 1297-1303

The effect of aluminium (Al) on phosphoinositide-specific phospholipase C (PLC) and lipid kinase activities was examined in a cellular suspension of coffee. Two main effects were seen when cells were treated with AlCl ₃ . In periods as short as 1 minute, Al-exposed cells increased the activity of PLC and IP ₃ formation up to two fold. Over longer periods PLC activity was inhibited...

Filter options

Publication date

Last 3 years (1)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

Keywords

COFFEA ARABICA L. (19)
HERMETIC STORAGE (2)
ADENOSINE (1)
ADENOSINE NUCLEOSIDASE (1)
AGROFORESTRY (1)
AL (1)
ARTIFICIAL ATMOSPHERE (1)
ASPECT (1)
BIG BAG (1)
BREWING (1)
BROWN EYE SPOT (1)
CATUAI (1)
CERCOSPORA COFFEICOLA (1)
CERCOSPORIN (1)
CHLOROPHYLL A FLUORESCENCE TRANSIENT O-J-I-P (1)
COFFEE (1)
COFFEE LEAF RUST (1)
COFFEE PLANT DEVELOPMENT (1)
COLOR (1)
CUP QUALITY (1)
ECOLOGICAL INDICATORS (1)
ELECTRONIC NOSE (1)
ELECTRONIC TONGUE (1)
ENTHALPY (1)
ENTROPY (1)
ENVIRONMENTAL STRESS (1)
ENZYME PURIFICATION (1)
EPIDEMICS (1)
ETHIOPIA (1)
FATTY ACID PROFILE (1)
FERTILIZATION (1)
FOREST COFFEE TREES (1)
FOREST LANDSCAPE RESTORATION (1)
GAB MODEL (1)
GC-Q/MS (1)
GENE DIVERSITY (1)
GIBBS FREE ENERGY (1)
HEMILEIA VASTATRIX (1)
HEMILEIA VASTATRIX BERK ET. BR. (1)
HOST PLANT RESISTANCE (1)
ISSR (1)
LEAF SPOT (1)
METABOLITE PROFILING (1)
NA (1)
NATURAL REGENERATION (1)
NUTRIENTS (1)
PATHOGENESIS (1)
PHOSPHOLIPASE C (1)
PHOSPHOLIPID KINASES (1)
PHOTOSYNTHESIS (1)
PHOTOSYNTHETIC PIGMENTS (1)
PHOTOSYSTEM II QUANTUM YIELD (1)
PHYSICOCHEMICAL CHARACTERIZATION (1)
PLANTATION DENSITIES (1)
PLS-DA (1)
PRINCIPAL COMPONENT ANALYSIS (1)
PRINCIPAL COMPONENTS (1)
PURINE METABOLISM (1)
QUALITY (1)
QUALITY SENSORIAL (1)
RECYCLING (1)
RUBIACEAE (1)
SCANNING ELECTRON MICROSCOPE (1)
SENSORIAL ANALYSIS (1)
SENSORY ANALYSIS (1)
SENSORY PROFILE (1)
SHADE COFFEE (1)
SHANNON’S INDEX (1)
SPATIAL VARIABILITY (1)
SPORULATION (1)
SYSTEMIC FUNGICIDES (1)
TIMOR HYBRID (1)
TREATED WASTEWATER (1)
TRIAZOLE (1)
TRICKLE IRRIGATION (1)
WET METHOD (1)
more

Data set

Elsevier (9)
Wiley (7)
Springer (3)

INFONA - science communication portal

Search results

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Keywords

Data set

Reporting an error / abuse

Sending the report failed

Accessibility options