Journal of Plant Sciences

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Urena lobata: A Green Source of Anti-Oxidant

Received: 20 November 2014    Accepted: 11 December 2014    Published: 17 December 2014
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Abstract

Anti- oxidants are crucial to human health. They have capacity to neutralize the free radicals responsible for giving birth to a variety of diseases. A diet rich in foods with high levels of anti-oxidants is associated with longevity and good health. We tried to replace the chemical anti-oxidants by herbal anti-oxidants. In plants, the anti-oxidants are present as flavonoids,so the flavonoids in Urena lobata were isolated , identified, quantitatively estimated and tested for their anti-oxidant activity.The flavonoids were extracted from the stem and the leaves separately to know the relative contents. Quercetin and Kaempferol were found to exist in the plant material.These were qualitatively tested by the method of Thin Layer Chromatography (TLC). The isolation, purification and quantitative content determination was performed by preparative thin layer chromatography (PTLC). The anti-oxidant activity of the methanolic plant extract was examined by DPPH radical scavenging activity method. The anti-oxidant ability of the plant extract was found comparable with Vitamin C.

DOI 10.11648/j.jps.20140206.16
Published in Journal of Plant Sciences (Volume 2, Issue 6, December 2014)
Page(s) 299-303
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), 2024. Published by Science Publishing Group

Keywords

Urena Lobata, Quercetin, Kaempferol, Myrecetin, Silica Gel-G, Ascorbic Acid and DPPH

References
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[2] A.B., Shinde, N.B Shrigadi, S.D. Samant, Tert-Butylation of Phenols using Tert-Butyl Alcohol in the Presence of FeCl3- modified Montmorillonite K10 Appl. Catal. A: Gen., 276, (2004), 5-8.
[3] N. Bhatt, P. Sharma, A. Patel, A. Selvam , Supported 12 – Tungstophosphoricacid : An Efficient And Selective Solid Acid –Catalyst for Tert- Butylation of Phenol and Cresols, Catal. Comm., 9(7), (2008) , 1545 -1550.
[4] H.U. Shen, Z.M.A. Judeh, C.B. Ching, Q.H. Xia,. Comparative Studies on Alkylation of phenol With Tert- Butyl Alcohol in Presence of Liquid or Solid Acid Catalysts in Ionic Liquids, J.Mol. Catal. A, .212 (1-2), (2004), 301 -308.
[5] A. R. Proteggente, A.S. Pannala, L. Van Buren, E.Wagner, S. Wiseman, F.Vande Put, C.Dacombe, C.A. Rice- Evans, The Antioxidant Activity of Regularly Consumed Fruit and Vegetables Reflects their Phenolic and Vitamin C Composition, Free Radical Research, 36 (2), (2002), 217-233.
[6] J.K. Francis, Atlas of Florida Vascular Plants , Institute of Systematic Botany, University of South Florida, Tampa, FL., 2003.
[7] R. Freedman, Famine Foods: Malvceae , Perdue University , Perdue , IN , 1998.
[8] Food and Agriculture Organization of the United Nations, Rome, in its report Food Composition Table for Use in Africa, 2003.
[9] S.S.Subramanian, S. Nagarajan , Flavonoids of the seeds of Crotlaria retusa and C. striata, Curr. Sci., 38 , (1969) , 65 – 68.
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Author Information
  • Department of Chemistry, H. N. B. Garhwal University Campus- Pauri (Uttarakhand), India

  • Department of Chemistry, H. N. B. Garhwal University Campus- Pauri (Uttarakhand), India

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    Dixa Singh, V. S. Singh. (2014). Urena lobata: A Green Source of Anti-Oxidant. Journal of Plant Sciences, 2(6), 299-303. https://doi.org/10.11648/j.jps.20140206.16

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    ACS Style

    Dixa Singh; V. S. Singh. Urena lobata: A Green Source of Anti-Oxidant. J. Plant Sci. 2014, 2(6), 299-303. doi: 10.11648/j.jps.20140206.16

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    AMA Style

    Dixa Singh, V. S. Singh. Urena lobata: A Green Source of Anti-Oxidant. J Plant Sci. 2014;2(6):299-303. doi: 10.11648/j.jps.20140206.16

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  • @article{10.11648/j.jps.20140206.16,
      author = {Dixa Singh and V. S. Singh},
      title = {Urena lobata: A Green Source of Anti-Oxidant},
      journal = {Journal of Plant Sciences},
      volume = {2},
      number = {6},
      pages = {299-303},
      doi = {10.11648/j.jps.20140206.16},
      url = {https://doi.org/10.11648/j.jps.20140206.16},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.jps.20140206.16},
      abstract = {Anti- oxidants are crucial to human health. They have capacity to neutralize the free radicals responsible for giving birth to a variety of diseases. A diet rich in foods with high levels of anti-oxidants is associated with longevity and good health. We tried to replace the chemical anti-oxidants by herbal anti-oxidants. In plants, the anti-oxidants are present as flavonoids,so the flavonoids in Urena lobata were isolated , identified, quantitatively estimated and tested for their anti-oxidant activity.The flavonoids were extracted from the stem and the leaves separately to know the relative contents. Quercetin and Kaempferol were found to exist in the plant material.These were qualitatively tested by the method of Thin Layer Chromatography (TLC). The isolation, purification and quantitative content determination was performed by preparative thin layer chromatography (PTLC). The anti-oxidant activity of the methanolic plant extract was examined by DPPH radical scavenging activity method. The anti-oxidant ability of the plant extract was found comparable with Vitamin C.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Urena lobata: A Green Source of Anti-Oxidant
    AU  - Dixa Singh
    AU  - V. S. Singh
    Y1  - 2014/12/17
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    N1  - https://doi.org/10.11648/j.jps.20140206.16
    DO  - 10.11648/j.jps.20140206.16
    T2  - Journal of Plant Sciences
    JF  - Journal of Plant Sciences
    JO  - Journal of Plant Sciences
    SP  - 299
    EP  - 303
    PB  - Science Publishing Group
    SN  - 2331-0731
    UR  - https://doi.org/10.11648/j.jps.20140206.16
    AB  - Anti- oxidants are crucial to human health. They have capacity to neutralize the free radicals responsible for giving birth to a variety of diseases. A diet rich in foods with high levels of anti-oxidants is associated with longevity and good health. We tried to replace the chemical anti-oxidants by herbal anti-oxidants. In plants, the anti-oxidants are present as flavonoids,so the flavonoids in Urena lobata were isolated , identified, quantitatively estimated and tested for their anti-oxidant activity.The flavonoids were extracted from the stem and the leaves separately to know the relative contents. Quercetin and Kaempferol were found to exist in the plant material.These were qualitatively tested by the method of Thin Layer Chromatography (TLC). The isolation, purification and quantitative content determination was performed by preparative thin layer chromatography (PTLC). The anti-oxidant activity of the methanolic plant extract was examined by DPPH radical scavenging activity method. The anti-oxidant ability of the plant extract was found comparable with Vitamin C.
    VL  - 2
    IS  - 6
    ER  - 

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