PubAg

Main content area

You searched for: Subject "Coffea arabica" Remove constraint Subject: "Coffea arabica"
Start Over

Search

1,339  Search Results

« Previous | 1 - 20 of 1,339 |
Number of results to display per page

Search Results

1. Evaluation of the influence of cultivation on the total magnesium concentration and infusion extractability in commercial arabica coffee

Author:
Batista dos Santos Espinelli Junior, João; von Brixen Montzel Duarte da Silva, Guilherme; Branco Bastos, Renan; Badiale Furlong, Eliana; Carapelli, Rodolfo
Source:
Food chemistry 2020 v.327 pp. 127012
ISSN:
0308-8146
Subject:
Coffea arabica,   etc   ; absorption; agricultural management; humans; inorganic salts; magnesium; minerals; nutrients; organic salts; phytic acid;     Show all 10 Subjects
Abstract:
... Coffee is considered an important source of organic nutrients and minerals, and these resources are strongly affected by agricultural management. Among the minerals, the element Mg is important, which is essential for both plants and humans. In this work, the effects of agricultural management on the absorption and storage of Mg by commercial, ground, roasted Arabica coffee were investigated. For ...
DOI:
10.1016/j.foodchem.2020.127012

2. Combining integrated ultrasonic-microwave technique with ethanol to maximise extraction of green coffee oil from Arabica coffee beans

Author:
Chen, Qiyu; Dong, Wenjiang; Wei, Changqing; Hu, Rongsuo; Long, Yuzhou
Source:
Industrial crops and products 2020 v.151 pp. 112405
ISSN:
0926-6690
Subject:
Coffea arabica,   etc   ; coffee beans; ethanol; oils; response surface methodology; scanning electron microscopy; solvents;     Show all 7 Subjects
Abstract:
... This study was designed to integrate ultrasonic-microwave assisted extraction (UMAE) with ethanol, a green solvent, to extract green coffee oil (GCO) from green coffee beans. Response surface methodology was utilised to maximise the efficiency of GCO extraction. Structural changes occurring in the coffee residue were explored using scanning electron microscopy, and extraction kinetics was establis ...
DOI:
10.1016/j.indcrop.2020.112405

3. Physical and Cup Quality Attributes of Arabica Coffee (Coffea arabica L.) Varieties Grown in Highlands of Amhara Region, Northwestern Ethiopia

Author:
Wale Mengistu, Melese; Alemayehu Workie, Melkamu; Sualeh Mohammed, Abrar
Source:
International journal of agronomy 2020 v.2020
ISSN:
1687-8167
Subject:
Coffea arabica,   etc   ; acidity; agroecology; astringency; beans; bitterness; coffee beans; commodity exchange; highlands; trees; Ethiopia;     Show all 11 Subjects
Abstract:
... Coffee is the second most traded commodity worldwide after oil both in terms of volume and value. The study was therefore initiated to evaluate the quality of highland coffee varieties grown in the region. For this purpose, coffee bean samples of the varieties Merdacheriko, Yachi, Wush Wush, Buno wash, 741, 7440, Ababuna, and Ageze were collected from trees which were grown in Adet and Woramit Agr ...
DOI:
10.1155/2020/6420363

4. Distinguishing the region-of-origin of roasted coffee beans with trace element ratios

Author:
Bitter, Nicholas Q.; Fernandez, Diego P.; Driscoll, Avery W.; Howa, John D.; Ehleringer, James R.
Source:
Food chemistry 2020 v.320 pp. 126602
ISSN:
0308-8146
Subject:
Coffea arabica,   etc   ; coffee beans; provenance; quantitative analysis; roasting; temperature; trace elements; volatilization;     Show all 8 Subjects
Abstract:
... Determining coffee region-of-origin is most appropriately addressed through analyses of the product available to the consumer. We analyzed the concentrations of 44 trace elements in 53 samples of roasted Arabica coffee beans (Coffea arabica) from 21 different countries. Variations in absolute elemental concentrations of coffee beans arise through varying degrees of roasting (from green through dar ...
DOI:
10.1016/j.foodchem.2020.126602

5. Dynamic behavior of coffee tree branches during mechanical harvest

Author:
Ferreira Júnior, Luiz de Gonzaga; Silva, Fábio Moreira da; Ferreira, Danton Diego; Souza, Carlos Eduardo Pereira de; Pinto, Andrey Willian Marques; Borges, Fernando Elias de Melo
Source:
Computers and electronics in agriculture 2020 v.173 pp. 105415
ISSN:
0168-1699
Subject:
Coffea arabica,   etc   ; accelerometers; branches; computer software; fruits; harvesters; instrumentation; mechanical harvesting; models; trees; vibration;     Show all 11 Subjects
Abstract:
... The coffee industry stands out worldwide due to its socioeconomic importance, acting directly or indirectly in the most diverse sectors. With this, new technologies and several harvester models have emerged. These harvesters have regulations that can influence the efficiency of harvesting, the selectivity of fruits and the preservation of the crop. In this way, the understanding of the behavior of ...
DOI:
10.1016/j.compag.2020.105415

6. Characterization of the Transverse Distribution of Fertilizer in Coffee Plantations

Author:
Andrade, Alan Delon; Araújo e Silva Ferraz, Gabriel; Machado de Barros, Murilo; De Oliveira Faria, Rafael; Moreira da Silva, Fábio; Sarri, Daniele; Vieri, Marco
Source:
Agronomy 2020 v.10 no.4
ISSN:
2073-4395
Subject:
Coffea arabica,   etc   ; canopy; collectors; crop production; diammonium phosphate; fertilizer application; fertilizers; plantations; production costs;     Show all 9 Subjects
Abstract:
... Considering the impact of fertilizers on coffee production costs, the search for greater efficiency in the use of these inputs has an important role. Accordingly, the aim of the present study is to evaluate the transverse distribution of fertilizer by a centrifugal spreader in a coffee plantation and to compare two operating modes: fertilizer application on one side (FA1), or both sides (FA2) of t ...
DOI:
10.3390/agronomy10040601

7. A rapid visual estimation of fruits per lateral to predict coffee yield in Hawaii

Author:
Idol, Travis W.; Youkhana, Adel H.
Source:
Agroforestry systems 2020 v.94 no.1 pp. 81-93
ISSN:
0167-4366
Subject:
Coffea arabica,   etc   ; agroforestry; crop yield; environmental factors; farms; fruits; trees; Hawaii;     Show all 8 Subjects
Abstract:
... Estimating coffee yield by measuring components of yield rather than complete harvests can improve the ability to account for heterogeneous conditions common in shade-grown farms and other agroforestry systems. We developed a rapid estimation technique that predicts yield per plant from (1) a visual estimation of the number of fruits per lateral summed across all laterals per plant, and (2) an ave ...
DOI:
10.1007/s10457-019-00370-y

8. Using the yield-SAFE model to assess the impacts of climate change on yield of coffee (Coffea arabica L.) under agroforestry and monoculture systems

Author:
Gidey, Tesfay; Oliveira, Tânia Sofia; Crous-Duran, Josep; Palma, João H. N.
Source:
Agroforestry systems 2020 v.94 no.1 pp. 57-70
ISSN:
0167-4366
Subject:
Coffea arabica,   etc   ; agroforestry; climate change; crop yield; crops; microclimate; soil; trees; Ethiopia;     Show all 9 Subjects
Abstract:
... Ethiopia economy depends strongly on Coffea arabica production. Coffee, like many other crops, is sensitive to climate change and recent studies have suggested that future changes in climate will have a negative impact on its yield and quality. An urgent development and application of strategies against negative impacts of climate change on coffee production is important. Agroforestry-based system ...
DOI:
10.1007/s10457-019-00369-5

9. Limited genotypic and geographic variability of 16-O-methylated diterpene content in Coffea arabica green beans

Author:
Portaluri, Vincent; Thomas, Freddy; Guyader, Sophie; Jamin, Eric; Bertrand, Benoit; Remaud, Gérald S.; Schievano, Elisabetta; Mammi, Stefano; Guercia, Elena; Navarini, Luciano
Source:
Food chemistry 2020 v.329 pp. 127129
ISSN:
0308-8146
Subject:
Coffea arabica,   etc   ; Coffea canephora; diterpenoids; environmental impact; genotype; geographical variation; green beans; heritability; introgression; nuclear magnetic resonance spectroscopy; protective effect;     Show all 11 Subjects
Abstract:
... The acknowledged marker of Robusta coffee, 16-O-methylcafestol (16-OMC), can be quantified by NMR as a mixture with 16-O-methylkahweol (16-OMK), which accounts for approximately 10% of the mixture. In the present study, we detected and quantified 16-O-methylated diterpenes (16-OMD) in 248 samples of green Coffea arabica beans by NMR. We did not observe any differences between genotypes introgresse ...
DOI:
10.1016/j.foodchem.2020.127129

10. Complex evolutionary history of coffees revealed by full plastid genomes and 28,800 nuclear SNP analyses, with particular emphasis on Coffea canephora (Robusta coffee)

Author:
Charr, Jean-Claude; Garavito, Andrea; Guyeux, Christophe; Crouzillat, Dominique; Descombes, Patrick; Fournier, Coralie; Ly, Serigne N.; Raharimalala, Eva N.; Rakotomalala, Jean-Jacques; Stoffelen, Piet; Janssens, Steven; Hamon, Perla; Guyot, Romain
Source:
Molecular phylogenetics and evolution 2020 v.151 pp. 106906
ISSN:
1055-7903
Subject:
Coffea arabica,   etc   ; Coffea canephora; allopolyploidy; chromosomes; genetic relationships; hybridization; phylogeny; plastid genome; single nucleotide polymorphism; Central Africa;     Show all 10 Subjects
Abstract:
... For decades coffees were associated with the genus Coffea. In 2011, the closely related genus Psilanthus was subsumed into Coffea. However, results obtained in 2017—based on 28,800 nuclear SNPs—indicated that there is not substantial phylogenetic support for this incorporation. In addition, a recent study of 16 plastid full-genome sequences highlighted an incongruous placement of Coffea canephora ...
DOI:
10.1016/j.ympev.2020.106906

11. A Genome Sequence Resource for the Geographically Widespread Anthracnose Pathogen Colletotrichum asianum

Author:
Meng, Yanan; Ren, Yihua; Wang, Wenjing; Gleason, Mark L.; Zhang, Rong; Sun, Guangyu
Source:
Plant disease 2020 v.104 no.8 pp. 2044-2047
ISSN:
0191-2917
Subject:
Coffea arabica,   etc   ; Capsicum annuum; Colletotrichum; Mangifera indica; anthracnose; fruits; genome; geographical distribution; host plants; leaves; nucleotide sequences; plant pathogens;     Show all 12 Subjects
Abstract:
... Colletotrichum asianum is a worldwide plant pathogen causing serious fruit or leaf anthracnose diseases on a variety of plant hosts such as mango, coffee berry, chili, and other potential hosts, and it is distributed widely in Asia, America, Africa, and Oceania. This is the first genome resource available for C. asianum. The draft genome assembly will allow further analysis of species diversity an ...
DOI:
10.1094/PDIS-01-20-0034-A

12. Who gives a flux? Synchronous flowering of Coffea arabica accelerates leaf litter decomposition

Author:
Schmitt, Lauren; Perfecto, Ivette
Source:
Ecosphere 2020 v.11 no.7 pp. e03186
ISSN:
2150-8925
Subject:
Coffea arabica,   etc   ; arthropod communities; corolla; farms; flowering; leaves; nitrogen; nutrients; phosphorus; pitfall traps; plant litter; plant tissues; potassium;     Show all 13 Subjects
Abstract:
... Coffee (Coffea arabica) flowers synchronously and flowers are only open for a few days before senescing. Flower petals often decompose easily, containing higher concentrations of nutrients relative to other plant tissues. Thus, a pulse of petals into the detrital pool could be beneficial for the decomposer community and accelerate decomposition processes. Our research assessed the magnitude of the ...
DOI:
10.1002/ecs2.3186

13. Factorial design fingerprint discrimination of Coffea arabica beans under elevated carbon dioxide and limited water conditions

Author:
Marcheafave, Gustavo G.; Pauli, Elis Daiane; Tormena, Cláudia D.; Ortiz, Maria Carolina V.; de Almeida, Andressa G.; Rakocevic, Miroslava; Bruns, Roy E.; Scarminio, Ieda S.
Source:
Talanta 2020 v.209 pp. 120591
ISSN:
0039-9140
Subject:
Coffea arabica,   etc   ; beans; biosynthesis; caffeine; carbon dioxide; carbon dioxide enrichment; chlorogenic acid; coffee beans; drought; environmental factors; ethanol; irrigation; metabolites;     Show all 13 Subjects
Abstract:
... Coffee is one of the most important commodities, showing sensitivity to environmental variations. The main effects and their interaction for two levels of atmospheric CO₂ concentrations and two water regimes of a factorial design were investigated for the metabolic profiles of Coffea arabica raw beans using UV fingerprint analysis from a mixture design. UV fingerprint results obtained from pure et ...
DOI:
10.1016/j.talanta.2019.120591

14. Boron, zinc and manganese suppress rust on coffee plants grown in a nutrient solution

Author:
Pérez, Cristian David Plaza; Pozza, Edson Ampélio; Pozza, Adélia Aziz Alexandre; Elmer, Wade H.; Pereira, Andreane Bastos; Guimarães, Daniel da Silva Gomes; Monteiro, Ana Cristina Andrade; de Rezende, Mário Lúcio Vilela
Source:
European journal of plant pathology 2020 v.156 no.3 pp. 727-738
ISSN:
0929-1873
Subject:
Coffea arabica,   etc   ; Hemileia vastatrix; boron; disease course; leaves; lignin; manganese; nutrient solutions; pathogens; phenols; plant health; seedlings; spores; zinc;     Show all 14 Subjects
Abstract:
... Providing adequate nutrition to coffee plants is required to maintain plant health. The effect of five doses (0.05, 0.25, 0.50, 1.0, 2.0 and 4.0 mg L⁻¹) of boron (B), zinc (Zn) and manganese (Mn) on the severity of rust on coffee plants grown in nutrient solution was evaluated. Micronutrients were supplied to seedlings having two pairs of fully developed leaves. The seedling plants were inoculated ...
DOI:
10.1007/s10658-019-01922-9

15. Automated acoustic detection of a cicadid pest in coffee plantations

Author:
Escola, João Paulo Lemos; Guido, Rodrigo Capobianco; da Silva, Ivan Nunes; Cardoso, Alexandre Moraes; Maccagnan, Douglas Henrique Bottura; Dezotti, Artur Kenzo
Source:
Computers and electronics in agriculture 2020 v.169 pp. 105215
ISSN:
0168-1699
Subject:
Coffea arabica,   etc   ; Cicadidae; acoustics; automation; birds; databases; electronic equipment; farmers; insects; pests; plantations; support vector machines; South America;     Show all 13 Subjects
Abstract:
... South american countries are the largest coffee producers in the world. Nevertheless, Cicadidae, the colloquial term for cicadas, is one of the key pests responsible for dropping the production. Currently, there is no electronic device or autonomous technological resource commercially available for detecting certain species of cicadas in the crop, penalizing the farmers on the management of that i ...
DOI:
10.1016/j.compag.2020.105215

16. Monitoring coffee roasting cracks and predicting with in situ near‐infrared spectroscopy

Author:
Yergenson, Nathan; Aston, David Eric
Source:
Journal of food process engineering 2020 v.43 no.2 pp. e13305
ISSN:
0145-8876
Subject:
Coffea arabica,   etc   ; coffee beans; color; cracking; least squares; monitoring; near-infrared spectroscopy; popping; prediction; process control; processing technology; reflectance; roasting;     Show all 13 Subjects
Abstract:
... The prediction of start and end times of the first and second crack events in roasting coffee is feasible with in situ near‐infrared (NIR) spectroscopy. Roasting samples analyzed herein consist of eight varieties of arabica coffee with different origins and processing methods, roasted with four temperature–time profiles. Real‐time analysis of recorded audio from coffee bean popping sounds provides ...
DOI:
10.1111/jfpe.13305

17. Correction to: Arabica coffee fruits phenology assessed through degree days, precipitation, and solar radiation exposure on a daily basis

Author:
da Silva Angelo, Paula Cristina; Ferreira, Iran Bueno; de Carvalho, Carlos Henrique Siqueira; Matiello, José Braz; Sera, Gustavo Hiroshi
Source:
International journal of biometeorology 2019 v.63 no.7 pp. 845-846
ISSN:
0020-7128
Subject:
Coffea arabica,   etc   ; bioclimatology; fruits; heat sums; phenology; solar radiation;     Show all 6 Subjects
Abstract:
... The article was published with an erroneous rendering of Table 1. The correct rendering of this table is provided below. The original article has been corrected. ...
DOI:
10.1007/s00484-019-01728-8

18. Sound as a qualitative index of speckle laser to monitor biological systems

Author:
Rivera, Fernando Pujaico; Braga, Roberto Alves; Iannetta, Pietro; Toorop, Peter
Source:
Computers and electronics in agriculture 2019 v.158 pp. 271-277
ISSN:
0168-1699
Subject:
Coffea arabica,   etc   ; beans; ears; humans; models; seeds; tissues; wavelengths;     Show all 8 Subjects
Abstract:
... The Biospeckle Laser (BSL) induced phenomenon is recorded as light scattered from the surface of illuminated test material, and the methodology is established as a tool for the non-destructive assessment of biological tissues. The output of BSL-based recording is normally numeric data that are processed to generate graphical and visual information. However, BSL outputs could presented in a qualita ...
DOI:
10.1016/j.compag.2019.01.051

19. Cup quality attributes of Catimors as affected by size and shape of coffee bean (Coffea arabica L.)

Author:
Luna González, Alejandro; Macías Lopez, Antonio; Taboada Gaytán, Oswaldo R.; Morales Ramos, Victorino
Source:
International journal of food properties 2019 v.22 no.1 pp. 758-767
ISSN:
1094-2912
Subject:
Coffea arabica,   etc   ; beverages; coffee beans; color; Colombia; Costa Rica; Mexico;     Show all 7 Subjects
Abstract:
... During the dry processing of coffee, beans are classified by size, shape, weight, and color, resulting in the commercial preparation requested by the client, who can be of American, European, or other descent. The preparations consist of a combination of bean sizes and shapes, with a specified maximum number of defects. The objective of this work was to evaluate the effect of the shape and size of ...
DOI:
10.1080/10942912.2019.1603997

20. Are killer bees good for coffee? The contribution of a paper's title and other factors to its future citations

Author:
Costello, Mark J.; Beard, Karen H.; Primack, Richard B.; Devictor, Vincent; Bates, Amanda E.
Source:
Biological conservation 2019 v.229 pp. A1
ISSN:
0006-3207
Subject:
Coffea arabica,   etc   ; Africanized honey bees; information sources; insect pollination; journals;     Show all 5 Subjects
Abstract:
... How can the title of a paper affect its subsequent number of citations? We compared the citation rate of 5941 papers published in the journal Biological Conservation from 1968 to 2012 in relation to: paper length; title length; number of authors; paper age; presence of punctuation (colons, commas or question marks); geographic and taxonomic breadth; the word ‘method’; and the type of manuscript (a ...
DOI:
10.1016/j.biocon.2018.07.010