STUDIES ON IN VITRO ANTIOXIDANT ACTIVITIES, MINERAL COMPOSITION AND PHYTOCHEMICAL SCREENING OF GNETUM AFRICANUM LEAVES

Prof Usunobun Usunomena and Ekpemupolo I. Samuel   (Published 2016)

Prof Usunomena
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Abstract

Gnetum africanum, a common soup vegetable in Nigeria is also been used in the treatment of enlarged spleen,
sore throats, deduction of pains of child-birth, antidotes to some forms of poison and snake bite. This study is to ascertain
phytochemicals and minerals present in the leaves of Gnetum africanum in addition to in vitro antioxidant activities using
standard  procedures.  The  result  of  the  phytochemicals  present  revealed  the  presence  of  flavonoids,  saponins,  tannins,
alkaloids  while  the  minerals  present  in  mg/100g  includes:  calcium  (423.20),  magnesium  (112.81),  phosphate  (83.44),
zinc  (2.53), sodium  (37.82),  potassium (86.10),  copper  (1.00),  Iron  (11.67)  and  chromium  (0.52). In  vitro antioxidant
activities  using  reducing  power  activity  and  DPPH  radical  scavenging  assays showed  that  as  concentration  of Gnetum
africanum increases  from 0.2mg/ml to 1.0mg/ml, reducing power ability and radical scavenging activity also increases.
In  conclusion,  the  presence  of  bioactive  agents such  as  flavonoids  as  well  as  radical  scavenging  ability  of Gnetum
africanum gives credence to its usage in herbal medicine for treatment of various ailments.


Item Type: Journal article(non-copyrighted)
Format: PDF document,   139.65 KB
Copyright: Creative Commons LicenseCreative Commons license
Keywords: 2, 2-diphenyl-1-picrylhydrazyl, Gnetum africanum, in vitro, Leaves, Minerals, phytochemicals.
Department: Natural Science
Field of Study: Biochemistry
Uploaded By: Imarhiagbe Odoligie
Date Added: 22 Nov 2017 11:16am
Last Modified: 22 Nov 2017
Journal URL: https://www.edouniversity.edu.ng/oer/journal/studies_on_in_vitro_antioxidant_activities_mineral_composition_and_phytochemical_screening_of_gnetum_africanum_leaves


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