| Title |
New identification of proanthocyanidins in cinnamon (Cinnamomum zeylanicum L.) using MALDI-TOF/TOF mass spectrometry
|
|---|---|
| Published in |
Analytical & Bioanalytical Chemistry, November 2011
|
| DOI | 10.1007/s00216-011-5557-3 |
| Pubmed ID | |
| Authors |
María Luisa Mateos-Martín, Elisabet Fuguet, Carmen Quero, Jara Pérez-Jiménez, Josep Lluís Torres |
| Abstract |
The inner bark of Ceylon cinnamon (Cinnamomum zeylanicum L.) is commonly used as a spice and has also been widely employed in the treatment and prevention of disease. The positive health effects associated with the consumption of cinnamon could in part be due to its phenolic composition; proanthocyanidins (PA) are the major polyphenolic component in commercial cinnamon. We present a thorough study of the PA profile of cinnamon obtained using matrix-assisted laser desorption/ionization tandem time-of-flight (MALDI-TOF/TOF) mass spectrometry. In addition to the advantages of MALDI-TOF as a sensitive technique for the analysis of high-molecular-weight compounds, the tandem arrangement allows the identification of the compounds through their fragmentation patterns from MS/MS experiments. This is the first time that this technique has been used to analyze polymeric PA. The results show that cinnamon PA are more complex than was previously thought. We show here for the first time that they contain (epi)gallocatechin and (epi)catechingallate units. As gallates (galloyl moieties) and the pyrogallol group in gallocatechins have been related to the biological activity of grape and tea polyphenols, the presence of these substructures may explain some of the properties of cinnamon extracts. MALDI-TOF/TOF reveals that cinnamon bark PA include combinations of (epi)catechin, (epi)catechingallate, (epi)gallocatechin, and (epi)afzelechin, which results in a highly heterogeneous mixture of procyanidins, prodelphinidins, and propelargonidins. |
Mendeley readers
The data shown below were compiled from readership statistics for 114 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| France | 1 | <1% |
| Belgium | 1 | <1% |
| Unknown | 112 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 19 | 17% |
| Student > Bachelor | 15 | 13% |
| Researcher | 13 | 11% |
| Student > Master | 12 | 11% |
| Professor | 8 | 7% |
| Other | 21 | 18% |
| Unknown | 26 | 23% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 24 | 21% |
| Chemistry | 17 | 15% |
| Biochemistry, Genetics and Molecular Biology | 11 | 10% |
| Medicine and Dentistry | 5 | 4% |
| Engineering | 5 | 4% |
| Other | 17 | 15% |
| Unknown | 35 | 31% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 November 2021.
All research outputs
#8,533,995
of 25,371,288 outputs
Outputs from Analytical & Bioanalytical Chemistry
#2,202
of 9,618 outputs
Outputs of similar age
#71,500
of 244,574 outputs
Outputs of similar age from Analytical & Bioanalytical Chemistry
#24
of 70 outputs
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