Linked Life Data

20347596

Source:http://linkedlifedata.com/resource/pubmed/id/20347596

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2010-5-10
pubmed:abstractText
Roasted coffee contains a complex array of volatile organic compounds (VOCs) which make an important contribution to the characteristic flavour and aroma of the final beverage. It is thought that a few of the potent coffee aroma components, such as "beta-damascenone", could be derived from carotenoid precursors. In order to further investigate the potential link between carotenoids and coffee aroma profiles, we have measured the carotenoid content in developing coffee grain. The data obtained confirms the presence of lutein in the grain, and additionally shows that the immature coffee grain also contains significant amounts of beta-carotene, alpha-carotene, violaxanthin, and neoxanthin. Complimentary quantitative gene expression analysis revealed that all the carotenoid biosynthetic genes examined are expressed in the grain, and that the transcript levels are gene and stage dependent. Furthermore, consistent with the reduction of the carotenoid levels at the last stage of grain development (mature-red), most of the transcript levels were also found to be lower at the final developmental stage. Quantitative expression analysis of the carotenoid genes was also carried out for the developing pericarp tissue of the coffee cherries. Again, all the genes examined were expressed, and in most cases, the highest transcript levels were detected around the large green-yellow stages, a period when carotenoid synthesis is probably greatest.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1873-2690
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
434-42
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Carotenoid profiling and the expression of carotenoid biosynthetic genes in developing coffee grain.
pubmed:affiliation
Centre de Recherche Nestlé, 101 Avenue Gustave Eiffel, Notre Dame d'Oé, BP 49716-37097 Tours, France. andysimkin@aol.com <andysimkin@aol.com>
pubmed:publicationType
Journal Article