Biochemical diversity in the genus Coffea L.: chlorogenic acids, caffeine and mozambioside contents

Anthony, François; Clifford, Michael N.; Noirot, Michel

doi:10.1007/bf00052636

Cited by 77 publications

(62 citation statements)

References 18 publications

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“…Espécies do gênero Coffea nativas de Madagascar têm em sua grande maioria, sementes desprovidas de cafeína (ANTHONY et al, 1993). Em C. arabica, valores bastante reduzidos, próximos de 0,6%, são contatados na variedade Laurina (CARVALHO et al, 1965), assim como teores de 0,076%, em plantas silvestres provenientes da Etiópia (SILVAROLLA et al, 2004).…”

Section: Resultsunclassified

Diversidade química de cafeeiros na espécie Coffea canephora

et al. 2005

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RESUMOEste trabalho teve por objetivo caracterizar seis variedades de C. canephora do Banco de Germoplasma de Café do Instituto Agronômico, em Campinas. Para tanto, considerou-se a caracterização química de quarenta e sete exemplares analisando-se as variáveis sólidos solúveis, lipídios, trigonelina, ácidos clorogênicos e cafeína nas sementes. Observou-se a existência de grande variação entre e dentro dos diferentes materiais analisados, com valores extremos de 24,53% a 30,68% para sólidos solúveis; 6,61% a 12,27% para lipídios; 0,73% a 1,59% para trigonelina; 3,30% a 6,30% para ácidos clorogênicos e 1,94% a 3,29% para cafeína, indicando a possibilidade de seleção de plantas de interesse para o melhoramento dessa espécie.Palavras-chave: cafeína, componentes químicos, café robusta, diversidade genética, trigonelina. ABSTRACT CHEMICAL DIVERSITY IN COFFEE PLANTS OF COFFEA CANEPHORAThe objective of this work was to characterize six C. canephora varieties from the Coffee Germoplasma Collection of Instituto Agronômico, in Campinas, Brazil. For this a chemical characterization of forthy seven examples was performed. Soluble solids, lipids, trigonelline, chlorogenic acids and caffeine contents were evaluated on seeds. The results demonstrated the occurrance of great variation among and within the analyzed materials, with values ranging from 24,53% to 30,68% for soluble solids; 6,61% to 12,27% for lipids; 0,73% to 1,59% for trigonelline; 3,30% to 6,30% for chlorogenic acids and 1,94% to 3,29% for caffeine. These results indicate the possibility of selection of superior plants for the improvement of the specie.Key words: caffeine, chemical components, robust coffee, chemical diversity, trigonelline.( 1 ) Recebido para publicação em 31 de março e aceito em 8 de agosto de 2005.

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Section: Resultsunclassified

Diversidade química de cafeeiros na espécie Coffea canephora

et al. 2005

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“…Most other studies involved fewer accessions with different sample sizes and species and focused more on caffeine than on trigonelline. Previous studies showed caffeine content ranging from 0.62 -1.82% (Anthony et al, 1993;Avelino et al, 2005;Ky et al, 2001b;Mart n et al, 1998;Mazzafera and Carvalho, 1992;Mehari et al, 2016;Taveira et al, 2014) which is very similar to the current study (0.82 -1.76%). The study by Silvarolla et al (2000) showed a substantial variation from 0.42 -2.90% but included a very large population of inter and intra hybrid progenies with 499 plants from 68 progenies (Kaffa region of Ethiopia) and 166 plants from 22 progenies (Illubabor region of Ethiopia).…”

Section: Variation Of Caffeine and Trigonelline In Green Beansupporting

confidence: 91%

“…The results enabled three groups to be distinguished, but it did not strictly match the five phylogenetic clades of the Coffea genus (Anthony et al, 1993;Clifford et al, 1989). Later, seed diterpenoids were used to examine the relationship among nine African coffee species (de Roos et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Genomic studies of biochemical compounds determining arabica coffee (Coffea arabica L.) quality

Tran¹

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Coffee is an important crop globally. Improving coffee quality is a primary breeding target that would benefit from understanding of trait inheritance and ancestral genetic information. However, comparatively little information exists on the genetics of quality and the relationships between wild and cultivated coffee genotypes, especially arabica coffee (Coffea arabica L.) which accounts for almost 60% of coffee production globally. The complex polyploidy genome and limited genomic information for C. arabica have impeded the progress of genetic studies. Arabica coffee is among the major organisms that do not have a reference genome. This project aimed to develop and utilise genomic resources in genetic studies of arabica coffee quality. The relationship between coffee species and the position of arabica within the Coffeeae tribe were investigated using complete chloroplast genome sequences to determine the value of these genetic resources in breeding. A draft genome sequence of arabica coffee was developed. Marker-trait associations were studied for caffeine and trigonelline, the two principal compounds known to be related to coffee quality, paving the way for developing new improved varieties with preferred levels of these compounds in the coffee beans.Chloroplast genomes of 16 coffee species were sequenced and their phylogeny constructed. Results support distinct Psilanthus and Coffea clades. It is likely that C. canephora is a hybrid that has a Psilanthus maternal genome but received much of its nuclear genome from Coffea. The maternal genomes of C. arabica and C. canephora are divergent. This result is in agreement with the fact that the chloroplast genome of arabica should be that of the maternal parent i.e. C. eugenioides. There were two species (C. humblotiana and C. tetragona) close to C. arabica and one species (P. ebracteolatus) close to C. canephora containing almost no caffeine. They could serve as important materials in arabica quality breeding and research.For the association study, 232 diverse arabica coffee accessions originating from 27 countries were harvested from the germplasm collection at CATIE (Tropical Agricultural Research and Higher Education Centre), Costa Rica. Substantial variation between genotypes was observed for bean morphology attributes. Non-volatiles including caffeine and trigonelline showed larger variation in range than was previously reported. Results of targeted analysis of 18 volatiles from 35 accessions also showed significant variation. No strong correlation was found between bean morphology and the levels of non-volatile or volatile compounds, implying that it is difficult to select for low or high non-volatile and volatile compounds based on bean physical characteristics. However, it also indicates that breeding for desirable combinations of traits (i.e. large bean size, low caffeine, high trigonelline, and favourable volatiles) is possible.ii The genome of the most popular arabica variety (K7) in Australia was sequenced. Genome assembly was performed using b...

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“…In tobacco, disease susceptibility to Cercospora nicotianae increases when their accumulation is inhibited (Maher et al 1994). CGA content in green beans ranges from 0.14% (dry matter basis, dmb) in Coffea rhamnifolia Bridson to 11.3% (dmb) in Coffea canephora Pierre (Clifford and Jarvis 1988;Clifford et al 1989;Anthony et al 1993;Rakotomalala et al 1993;Ky et al 2001). CGA is a crucial parameter in breeding programs considering the high CGA content variations in the Coffea genus associated with their effects on organoleptic quality and disease resistance.…”

Section: Introductionmentioning

confidence: 98%

Genetic mapping of a caffeoyl-coenzyme A 3-O-methyltransferase gene in coffee trees. Impact on chlorogenic acid content

et al. 2003

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Chlorogenic acids (CGA) are involved in the bitterness of coffee due to their decomposition in phenolic compounds during roasting. CGA mainly include caffeoyl-quinic acids (CQA), dicaffeoyl-quinic acids (diCQA) and feruloyl-quinic acids (FQA), while CQA and diCQA constitute CGA sensu stricto (CGA s.s.). In the two cultivated species Coffea canephora and Coffea arabica, CGA s.s. represents 88% and 95% of total CGA, respectively. Among all enzymes involved in CGA biosynthesis, caffeoyl-coenzyme A 3-O-methyltransferase (CCoAOMT) is not directly involved in the CGA s.s. pathway, but rather in an upstream branch leading to FQA through feruloyl-CoA. We describe how a partial cDNA corresponding to a CCoAOMT encoding gene was obtained and sequenced. Specific primers were designed and used for studying polymorphism and locating the corresponding gene on a genetic map obtained from an interspecific backcross between Coffea liberica var. Dewevrei and Coffea pseudozanguebariae. Offspring of this backcross were also evaluated for the chlorogenic acid content in their green beans. A 10% decrease was observed in backcross progenies that possess one C. pseudozanguebariae allele of the CCoAOMT gene. This suggests that CGA s.s. accumulation is dependent on the CCoAMT allele present and consequently on the activity of the encoded isoform, whereby CGA accumulation increases as the isoform activity decreases. Possible implications in coffee breeding are discussed.

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Biochemical diversity in the genus Coffea L.: chlorogenic acids, caffeine and mozambioside contents

Cited by 77 publications

References 18 publications

Diversidade química de cafeeiros na espécie Coffea canephora

Diversidade química de cafeeiros na espécie Coffea canephora

Genomic studies of biochemical compounds determining arabica coffee (Coffea arabica L.) quality

Genetic mapping of a caffeoyl-coenzyme A 3-O-methyltransferase gene in coffee trees. Impact on chlorogenic acid content

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