Diversity of Phytochemical Content, Antioxidant Activity, and Fruit Morphometry of Three Mallow, Malva Species (Malvaceae)
Faten Rhimi | Mokhtar Rejili | Mohamed Ali Benabderrahim | Hédia Hannachi
The Malvaceae family contains a variety of medicinal plants, including those of the mallow (Malva) genus. This study investigated the phytochemical composition, antioxidant activity, and morphometry of fruit from three Malva species (common mallow M. sylvestris, cheeseweed mallow M. parviflora, and Cornish mallow M. multiflora. The phytochemical analysis and antioxidant potentials were conducted on dry and powdered fruits. The morphometry and texture were performed using the software imagery tools. Results showed that the principal component analysis based on phytochemical content, antioxidant activity, and morphometric and texture traits showed a group structure according to species. The M. multiflora fruits were distinguished by high values of morphometric and texture traits, oil content (17.96%), total flavonoid content (1.70 mg RE/g DM), total antioxidant activity, and high FRAP value. The M. parviflora fruits were smaller than the M. multiflora and were rich in proteins (17.70%), starch (94.41 mg/g DW), and soluble sugar contents (57.74 mg/g DW). However, the M. sylvestris fruits have an intermediate position within the two other species and are rich in total polyphenols (2.34 mg GAE/g DM) and flavonoid contents (0.75 mg RE/g DM). The combined data, including phytochemical characterization, antioxidant activity, and morphometry, could be used as an alternative tool to molecular analysis to distinguish between Malva species and to select future application of Malva fruits based on their metabolite&rsquo:s composition.
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