scholarly journals Hydroxycinnamoyl Amino Acids Conjugates: A Chiral Pool to Distinguish Commercially Exploited Coffea spp.

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1704
Author(s):  
Federico Berti ◽  
Luciano Navarini ◽  
Silvia Colomban ◽  
Cristina Forzato
Keyword(s):  
Amino Acids ◽  
Coffea Arabica ◽  
Coffea Canephora ◽  
Coffee Bean ◽  
Green Coffee ◽  
First Time ◽  
Green Coffee Bean ◽  
Coffea Liberica ◽  
Identification And Quantification

The synthesis of five hydroxycinnamoyl amides (HCAs) was accomplished and their identification and quantification in the green coffee bean samples of Coffea arabica, Coffea canephora, and Coffea liberica was performed. The HCAs p-coumaroyl-N-tyrosine 1b, caffeoyl-N-phenylalanine 2b, caffeoyl-N-tyrosine 3b, and p-coumaroyl-N-tryptophan 4b were characteristic of the C. canephora species while caffeoyl-N-tryptophan 5b was present in both C. canephora and C. arabica, but with higher content in C. canephora. The HCAs presence was also analyzed in C. liberica for the first time and none of the targeted compounds was found, indicating that this species is very similar to C. arabica species. Between C. canephora samples from various origins, significant differences were observed regarding the presence of all the HCAs, with C. canephora from Tanzania containing all five derivatives.

scholarly journals Freeze drying of natural deep eutectic solvent (NADES) extract of green coffee bean (Coffea canephora Pierre ex A. Froehner)

2020 ◽  
Vol 24 (2) ◽  
pp. 225-232
Author(s):  
Rensa Alsya FITRI ◽  
Tia Andriani LESTARI ◽  
Yunita SARI ◽  
Sutriyo SUTRIYO ◽  
Abdul MUN'IM
Keyword(s):  
Freeze Drying ◽  
Deep Eutectic Solvent ◽  
Coffea Canephora ◽  
Coffee Bean ◽  
Green Coffee ◽  
Natural Deep Eutectic Solvent ◽  
Green Coffee Bean

Comparison of chemical and fatty acid composition of green coffee bean (Coffea arabica L.) from different geographical origins

LWT ◽  
2021 ◽  
Vol 140 ◽  
pp. 110802
Author(s):  
Mengting Zhu ◽  
You Long ◽  
Yingjie Ma ◽  
Yi Chen ◽  
Qiang Yu ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Coffea Arabica ◽  
Coffee Bean ◽  
Green Coffee ◽  
Green Coffee Bean ◽  
Coffea Arabica L

scholarly journals Raw coffee processing yield affected more by cultivar than by harvest date

1969 ◽  
Vol 89 (3-4) ◽  
pp. 169-180
Author(s):  
Teodoro Espinosa-Solares ◽  
Juan Guillermo Cruz-Castillo ◽  
Osval Antonio Montesinos-López ◽  
Arturo Hernández-Montes
Keyword(s):  
Mass Balance ◽  
Coffea Arabica ◽  
Multivariate Analyses ◽  
Coffee Bean ◽  
Green Coffee ◽  
Linear Discriminant ◽  
Harvest Dates ◽  
Bean Yield ◽  
Green Coffee Bean ◽  
Coffea Arabica L

Conversion of cherry and parchment coffee (Coffea arabica L.) to green coffee was determined during two consecutive years of harvest for eight different coffee cultivars grown in Mexico. 'Mass balance' was useful to adjust the fruit humidity to 0.12 g/g for coffee bean raw processing. Univariate and multivariate analyses showed significant differences (P ≤ 0.05) among the cultivars. A linear discriminant function based on twelve variables measured on several dates in two consecutive harvest years showed that 'Typica' and 'Mundo Novo' had high efficiencies in conversions from cherry to green coffee on three harvest dates in 1999 and one in 2000. In contrast, 'Bourbon' and 'Yellow Caturra' required greater amount of fresh fruit to obtain 46 kg (1 quintal) of green coffee. The cultivar effects on the parchment to green coffee bean yield were not clearly identified. Harvest dates studied did not significantly influence the conversion of cherry or parchment to green coffee bean yields in the two years evaluated. 

scholarly journals Micro-CT to Document the Coffee Bean Weevil, Araecerus fasciculatus (Coleoptera: Anthribidae), Inside Field-Collected Coffee Berries (Coffea canephora)

Insects ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. 100 ◽  
Author(s):  
Ignacio Alba-Alejandre ◽  
Javier Alba-Tercedor ◽  
Fernando Vega
Keyword(s):  
Computerized Tomography ◽  
Instar Larva ◽  
Coffea Canephora ◽  
Ct Scans ◽  
Coffee Bean ◽  
Micro Ct ◽  
Adult Beetle ◽  
Bean Weevil ◽  
Coffee Berry ◽  
First Time

The coffee bean weevil, Araecerus fasciculatus (De Geer) (Coleoptera: Anthribidae), is a cosmopolitan insect with >100 hosts, and has been reported as a pest of stored coffee. During a study involving the coffee berry borer, we observed coffee bean weevils emerging from field-collected coffee berries and used micro-computerized tomography (micro-CT) scans to observe the insect inside the berry. Two eggs had eclosed inside the berry, resulting in observations of a newly eclosed adult beetle and a 5th instar larva, each feeding on one of the two seeds. This is the first time since 1775, when the insect was first described, that the insect has been observed inside a coffee berry.

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).

Chlorogenic Acid: An Allergen in Green Coffee Bean

Nature ◽  
1961 ◽  
Vol 192 (4799) ◽  
pp. 241-243 ◽  
Author(s):  
S. O. FREEDMAN ◽  
J. KRUPEY ◽  
A. H. SEHON
Keyword(s):  
Chlorogenic Acid ◽  
Coffee Bean ◽  
Green Coffee ◽  
Green Coffee Bean
Sign in / Sign up

Export Citation Format

Share Document