| Title |
Phenolic profile of Dunaliella tertiolecta growing under high levels of copper and iron
|
|---|---|
| Published in |
Environmental Science and Pollution Research, May 2015
|
| DOI | 10.1007/s11356-015-4717-y |
| Pubmed ID | |
| Authors |
Aroa López, Milagros Rico, J. Magdalena Santana-Casiano, Aridane G. González, Melchor González-Dávila |
| Abstract |
The present study investigates the phenolic profile of exudates and extracts of the green algae Dunaliella tertiolecta, harvested in natural seawater in the absence (control) and in the presence of Cu(II) (315 and 790 nmol L(-1)) and Fe(III) (900 nmol L(-1)) in order to identify and quantify the phenolic compounds produced under metallic stress conditions. The presence of metal ions modifies the growth of cells and changes cell metabolism by producing phenolic compounds adapted to the solution. The use of reversed-phase high-performance liquid chromatography (RP-HPLC) permitted the identification of 14 phenolic constituents. The concentration and type of polyphenols detected in cell extracts and in solution are directly related with the metal and its concentration during growth cultures, achieving 1.4 times higher levels of polyphenols under 790 nmol Cu(II) L(-1) with respect to the control experiments. Microalga excretes polyphenols to be adapted to the environmental conditions. Gentisic acid, (+) catechin and (-) epicatechin, the most prominent phenolic compounds detected in the algae extracts, showed high antioxidant activity in inhibiting 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals. This potent activity may be related to its presence in cells and exudates in high concentrations. |
Mendeley readers
The data shown below were compiled from readership statistics for 84 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 84 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 15 | 18% |
| Researcher | 9 | 11% |
| Student > Doctoral Student | 9 | 11% |
| Student > Master | 9 | 11% |
| Student > Bachelor | 5 | 6% |
| Other | 14 | 17% |
| Unknown | 23 | 27% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 20 | 24% |
| Biochemistry, Genetics and Molecular Biology | 8 | 10% |
| Engineering | 5 | 6% |
| Environmental Science | 5 | 6% |
| Chemistry | 5 | 6% |
| Other | 10 | 12% |
| Unknown | 31 | 37% |
Attention Score in Context
This research output has an Altmetric Attention Score of 5. 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 05 February 2016.
All research outputs
#6,272,753
of 23,911,072 outputs
Outputs from Environmental Science and Pollution Research
#1,227
of 9,883 outputs
Outputs of similar age
#70,268
of 269,774 outputs
Outputs of similar age from Environmental Science and Pollution Research
#27
of 178 outputs
Altmetric has tracked 23,911,072 research outputs across all sources so far. This one has received more attention than most of these and is in the 73rd percentile.
So far Altmetric has tracked 9,883 research outputs from this source. They receive a mean Attention Score of 3.7. This one has done well, scoring higher than 87% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 269,774 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 73% of its contemporaries.
We're also able to compare this research output to 178 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 84% of its contemporaries.