Effects of regular and decaffeinated roasted coffee (Coffea arabica and Coffea canephora) extracts and bioactive compounds on in vitro probiotic bacterial growth

2020 ◽  
Vol 11 (2) ◽  
pp. 1410-1424 ◽  
Author(s):  
Amanda Luísa Sales ◽  
Juliana dePaula ◽  
Caroline Mellinger Silva ◽  
Adriano Cruz ◽  
Marco Antônio Lemos Miguel ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Bacterial Growth ◽  
Coffea Arabica ◽  
Coffea Canephora ◽  
Roasted Coffee ◽  
Coffee Species

The aim of this study was to investigate the effects of coffee species, roast degree and decaffeination on in vitro probiotic bacterial growth, and to identify the major coffee compounds responsible for such effects.

scholarly journals Determination of Three Main Chlorogenic Acids in Water Extracts of Coffee Leaves by Liquid Chromatography Coupled to an Electrochemical Detector

Antioxidants ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 143 ◽  
Author(s):  
Rocío Rodríguez-Gómez ◽  
Jérôme Vanheuverzwjin ◽  
Florence Souard ◽  
Cédric Delporte ◽  
Caroline Stevigny ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Coffea Arabica ◽  
Limit Of Detection ◽  
Coffea Canephora ◽  
Antioxidant Compounds ◽  
Chlorogenic Acids ◽  
Coffea Species ◽  
Coffee Species ◽  
Coffea Liberica

Coffee is a beverage widely consumed in the world. The coffee species most commercialized worldwide are Arabica (Coffea arabica) and Robusta (Coffea canephora). Roasted coffee beans are the most used, but coffee leaves are also consumed as infusion in several countries for traditional medicinal purposes. They contain several interesting phenolic antioxidant compounds mainly belonging to chlorogenic acids (CGAs). In the present work, a liquid chromatography-electrochemical detection (LC-EC) method was developed for the determination of three main chlorogenic acid isomers, namely 3-, 4-, and 5-caffeoylquinic acids (CQA), in coffee leaves aqueous extracts. Samples from eight coffee species, namely; Coffea arabica, Coffea canephora, Coffea liberica, Coffea humilis, Coffea mannii, Coffea charrieriana, Coffea anthonyi, and Coffea liberica var. liberica, were grown and collected in tropical greenhouses. Linearity of the calibration graphs was observed in the range from the limit of quantification to 1.0 × 10−5 M, with R2 equal to 99.9% in all cases. High sensitivity was achieved with a limit of detection of 1.0 × 10−8 M for 3-CQA and 5-CQA (i.e., 3.5 µg/L) and 2.0 × 10−8 M for 4-CQA (i.e., 7.1 µg/L). The chromatographic profile of the samples harvested for each Coffea species was studied comparatively. Obtained raw data were pretreated for baseline variations and shifts in retention times between the chromatographic profiles. Principal Component Analysis (PCA) was applied to the pretreated data. According to the results, three clusters of Coffea species were found. In the water sample extracts, 5-CQA appeared to be the major isomer, and some species contained a very low amount of CQAs. Fluctuations were observed depending on the Coffea species and harvesting period. Significant differences between January and July were noticed regarding CQAs content. The species with the best CQAs/caffeine ratio was identified. The LC-EC data were validated by liquid chromatography-high resolution mass spectrometry (LC-HRMS).

scholarly journals Distribution and pathogenicity of Pseudomonas cichorii (Swingle) Stapp in coffee in Puerto Rico

1969 ◽  
Vol 87 (3-4) ◽  
pp. 123-135 ◽  
Author(s):  
Luis Sánchez ◽  
Mildred Zapata ◽  
Rocío del P. Rodríguez ◽  
James S. Beaver
Keyword(s):  
Puerto Rico ◽  
Leaf Age ◽  
Coffea Canephora ◽  
Resistance Mechanisms ◽  
Pseudomonas Cichorii ◽  
Inoculation Methods ◽  
Young Leaves ◽  
Resistant Genotypes ◽  
Coffee Species

Seventeen pathogenic strains of Pseudomonas cichorii were isolated from leaf samples of coffee (Coffea arabica) collected from nurseries in eight municipalities of Puerto Rico. Two different inoculation methods were evaluated under in vitro conditions: inoculation of plant-attached old and young leaves grown under greenhouse conditions, and plant-detached young coffee leaves grown under field conditions. Pseudomonas cichorii was more virulent in older leaves, thus indicating that resistance mechanisms differ according to leaf age. Both inoculation methods were reliable in identifying resistant genotypes. Three commercial varieties of coffee (Borbón, Pacas and Caturra) were susceptible to bacterial leaf blight, whereas coffee species Coffea liberica var. Excelsa and Coffea canephora var. Robusta were resistant.

scholarly journals Autotetraploid Coffea canephora and Auto-Alloctaploid Coffea arabica From In Vitro Chromosome Set Doubling: New Germplasms for Coffea

2020 ◽  
Vol 11 ◽  
Author(s):  
Lucimara Ribeiro Venial ◽  
Maria Andréia Corrêa Mendonça ◽  
Paulo Marcos Amaral-Silva ◽  
Guilherme Bravim Canal ◽  
Ana Beatriz Rocha de Jesus Passos ◽  
...  
Keyword(s):  
Coffea Arabica ◽  
Coffea Canephora

scholarly journals Phytochemical Profile and in vitro Assessment of the Cytotoxicity of Green and Roasted Coffee Oils (Coffea arabica L.) and their Polar Fractions

2018 ◽  
Vol 12 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Ana Paula Lorenzen , Voytena ◽  
Regina Celis Lopes Affonso ◽  
Heloisa da Silva Pitz ◽  
Fernanda Ramlov ◽  
Thais Alberti ◽  
...  
Keyword(s):  
Coffea Arabica ◽  
Roasted Coffee ◽  
In Vitro Assessment ◽  
Phytochemical Profile ◽  
Coffea Arabica L

scholarly journals From chromosome doubling to DNA sequence changes: outcomes of an improved in vitro procedure developed for allotriploid “Híbrido de Timor” (Coffea arabica L. × Coffea canephora Pierre ex A. Froehner)

2017 ◽  
Vol 131 (2) ◽  
pp. 223-231 ◽  
Author(s):  
Natália Arruda Sanglard ◽  
Paulo Marcos Amaral-Silva ◽  
Mariana Cansian Sattler ◽  
Stéfanie Cristina de Oliveira ◽  
Andrei Caíque Pires Nunes ◽  
...  
Keyword(s):  
Dna Sequence ◽  
Coffea Arabica ◽  
Chromosome Doubling ◽  
Coffea Canephora ◽  
Coffea Arabica L

Effect of steam treatment on the profile of bioactive compounds and antioxidant activity of defective roasted coffee (Coffea canephora)

LWT ◽  
2019 ◽  
Vol 99 ◽  
pp. 364-370 ◽  
Author(s):  
Daneysa Lahis Kalschne ◽  
Marcelo Caldeira Viegas ◽  
Antonio José De Conti ◽  
Marinês Paula Corso ◽  
Marta de Toledo Benassi
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Coffea Canephora ◽  
Steam Treatment ◽  
Roasted Coffee
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