The effect of growth stage on the physicochemical composition and antioxydant activities of olive leaves extracted with solvents of increasing polarity was investigated at two different stages. The total phenolic, total o-diphenols and total flavonoid were measured. Therefore, the levels of chlorophyll and carotenoids were also measured. The content of phenols varied significantly with two different growth stages October and February. The lowest level of phenols and o-diphenols was detected in the first vegetative stage whereas the highest content was enregistered during the second vegetative stage. The results showed that methanol extract contains the maximum phenolic content. Furthermore, the differences in total flavonoid contents of leaves between two different stages and between solvent extract were highly significant. Thus, the AA exhibited asignificant (p<0.05) increase during leaves developpement. In fact, methanol and ethyl acetate extract was a considerably more effective on DPPH radical scavenger than other solvents extracts.
| Published in |
Journal of Plant Sciences (Volume 3, Issue 3-1)
This article belongs to the Special Issue Valorization of Leaves, Fruits and Stems of Aromatic Plants and Studies of Their Vegetative Cycle ; Extraction, Purification and Biological Activities |
| DOI | 10.11648/j.jps.s.2015030301.11 |
| Page(s) | 1-7 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2015. Published by Science Publishing Group |
Olea europaea L., Growth Stage, Antioxidant Activity, Chlorophylls, Phytochemical Composition
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APA Style
Faten Brahmi, Beligh Mechri, Madiha Dhibi, Mohamed Hammami. (2015). Effect of Growth Stage and Solvent Extract on the Antioxidant Potential of Olive Leaves. Journal of Plant Sciences, 3(3-1), 1-7. https://doi.org/10.11648/j.jps.s.2015030301.11
ACS Style
Faten Brahmi; Beligh Mechri; Madiha Dhibi; Mohamed Hammami. Effect of Growth Stage and Solvent Extract on the Antioxidant Potential of Olive Leaves. J. Plant Sci. 2015, 3(3-1), 1-7. doi: 10.11648/j.jps.s.2015030301.11
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Download@article{10.11648/j.jps.s.2015030301.11,
author = {Faten Brahmi and Beligh Mechri and Madiha Dhibi and Mohamed Hammami},
title = {Effect of Growth Stage and Solvent Extract on the Antioxidant Potential of Olive Leaves},
journal = {Journal of Plant Sciences},
volume = {3},
number = {3-1},
pages = {1-7},
doi = {10.11648/j.jps.s.2015030301.11},
url = {https://doi.org/10.11648/j.jps.s.2015030301.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.s.2015030301.11},
abstract = {The effect of growth stage on the physicochemical composition and antioxydant activities of olive leaves extracted with solvents of increasing polarity was investigated at two different stages. The total phenolic, total o-diphenols and total flavonoid were measured. Therefore, the levels of chlorophyll and carotenoids were also measured. The content of phenols varied significantly with two different growth stages October and February. The lowest level of phenols and o-diphenols was detected in the first vegetative stage whereas the highest content was enregistered during the second vegetative stage. The results showed that methanol extract contains the maximum phenolic content. Furthermore, the differences in total flavonoid contents of leaves between two different stages and between solvent extract were highly significant. Thus, the AA exhibited asignificant (p<0.05) increase during leaves developpement. In fact, methanol and ethyl acetate extract was a considerably more effective on DPPH radical scavenger than other solvents extracts.},
year = {2015}
}
TY - JOUR T1 - Effect of Growth Stage and Solvent Extract on the Antioxidant Potential of Olive Leaves AU - Faten Brahmi AU - Beligh Mechri AU - Madiha Dhibi AU - Mohamed Hammami Y1 - 2015/04/23 PY - 2015 N1 - https://doi.org/10.11648/j.jps.s.2015030301.11 DO - 10.11648/j.jps.s.2015030301.11 T2 - Journal of Plant Sciences JF - Journal of Plant Sciences JO - Journal of Plant Sciences SP - 1 EP - 7 PB - Science Publishing Group SN - 2331-0731 UR - https://doi.org/10.11648/j.jps.s.2015030301.11 AB - The effect of growth stage on the physicochemical composition and antioxydant activities of olive leaves extracted with solvents of increasing polarity was investigated at two different stages. The total phenolic, total o-diphenols and total flavonoid were measured. Therefore, the levels of chlorophyll and carotenoids were also measured. The content of phenols varied significantly with two different growth stages October and February. The lowest level of phenols and o-diphenols was detected in the first vegetative stage whereas the highest content was enregistered during the second vegetative stage. The results showed that methanol extract contains the maximum phenolic content. Furthermore, the differences in total flavonoid contents of leaves between two different stages and between solvent extract were highly significant. Thus, the AA exhibited asignificant (p<0.05) increase during leaves developpement. In fact, methanol and ethyl acetate extract was a considerably more effective on DPPH radical scavenger than other solvents extracts. VL - 3 IS - 3-1 ER -
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