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Effect of Growth Stage and Solvent Extract on the Antioxidant Potential of Olive Leaves

Received: 11 February 2015     Accepted: 11 February 2015     Published: 23 April 2015
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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.

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

Keywords

Olea europaea L., Growth Stage, Antioxidant Activity, Chlorophylls, Phytochemical Composition

References
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    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

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    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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    AMA 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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  • @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}
    }
    

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  • 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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Author Information
  • Laboratory of Biochemistry,UR03/ES-08 ‘‘Human Nutrition and Metabolic Disorder”, Faculty of Medicine, University of Monastir, Monastir ,Tunisia

  • Laboratory of Biochemistry,UR03/ES-08 ‘‘Human Nutrition and Metabolic Disorder”, Faculty of Medicine, University of Monastir, Monastir ,Tunisia

  • Laboratory of Biochemistry,UR03/ES-08 ‘‘Human Nutrition and Metabolic Disorder”, Faculty of Medicine, University of Monastir, Monastir ,Tunisia

  • Laboratory of Biochemistry,UR03/ES-08 ‘‘Human Nutrition and Metabolic Disorder”, Faculty of Medicine, University of Monastir, Monastir ,Tunisia

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