Antioxidant potentiality of three herbal teas consumed in Bandundu rural areas of Congo
Auteur(s): Mutwale Kapepula Paulin, Mbombo Mungitshi Patricia, Mumba Ngoyi Dieudonné, Ngombe Kabamba Nadège, Kalenda T. Dibungi Pascal, Muyembe Tamfum Jean JacquesNom de la revue/Journal: Natural product research
Mois: août
Volume: 31
Numéro: 16
Année: 2017
pages: 1940–1943.
Résumé
<p><span style="background-color:rgb(255,255,255);color:rgb(33,33,33);">The aim of this study was to evaluate and compare the cellular antioxidant activities of </span><i>Lantana montevidensis, Lippia multiflora</i><span style="background-color:rgb(255,255,255);color:rgb(33,33,33);">, and </span><i>Ocimum gratissimum</i><span style="background-color:rgb(255,255,255);color:rgb(33,33,33);"> leaves often consumed as herbal teas in a rural area of Bandundu severely affected by konzo, which is related to oxidative damage. Consequently, dietary supplements with proven antioxidant potentialities could be of real interest to promote in this area. Phytochemical screening by TLC and HPLC-DAD of extracts revealed the presence of verbascoside as a major phenolic compound. Verbascoside in </span><i>L. montevidensis</i><span style="background-color:rgb(255,255,255);color:rgb(33,33,33);"> and </span><i>O. gratissimum</i><span style="background-color:rgb(255,255,255);color:rgb(33,33,33);"> is reported here for the first time. All extracts displayed high ABTS and DPPH radical-scavenging activities at the concentration range of 1–40 μg mL</span>−1<span style="background-color:rgb(255,255,255);color:rgb(33,33,33);"> according to order: </span><i>L. multiflora > O. gratissimum</i><span style="background-color:rgb(255,255,255);color:rgb(33,33,33);"> > </span><i>L. montevidensis. L. multiflora</i><span style="background-color:rgb(255,255,255);color:rgb(33,33,33);"> showed the best cellular antioxidant activity using DCFH-DA on HL-60 monocytes assay at 1–20 μg mL</span>−1<span style="background-color:rgb(255,255,255);color:rgb(33,33,33);">. These herbal teas may be used as nutraceuticals for their potent antioxidant activity.</span></p>