Limited genotypic and geographic variability of 16-O-methylated diterpene content in Coffea arabica green beans
| Autor: | Benoît Bertrand, Eric Jamin, Sophie Guyader, Elisabetta Schievano, Luciano Navarini, Gérald S. Remaud, Elena Guercia, Stefano Mammi, Freddy Thomas, Vincent Portaluri |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
16-O-methylcafestol
Magnetic Resonance Spectroscopy Genotype Spectroscopie RMN Color Geographic variation Coffea Biology 01 natural sciences Coffee Methylation Analytical Chemistry F30 - Génétique et amélioration des plantes chemistry.chemical_compound 0404 agricultural biotechnology Variation génétique 16-O-methylkahweol Coffea arabica Green coffee NMR Diterpenes Molecular Structure Seeds Q04 - Composition des produits alimentaires 010401 analytical chemistry fungi 04 agricultural and veterinary sciences General Medicine Heritability 040401 food science 0104 chemical sciences Horticulture chemistry Diterpene Génotype Food Science |
| Zdroj: | Food Chemistry |
| Popis: | 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 introgressed by chromosomal fragments of Robusta and non-introgressed genotypes. Environmental effects suggesting a possible protective role of 16-OMD for adaptation, as well as genotypic effects that support a high heritability of this trait were observed. Altogether, our data confirmed the presence of 16-OMD in green Arabica at a level approximately 1.5% that of a typical Robusta, endorsing the validity of 16-OMD as a marker for the presence of Robusta. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|