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  • Title: New insights into the phytochemical composition, enzyme inhibition and antioxidant properties of desert cotton (Aerva javanica (Bum.f) Shult. -Amaranthaceae).
    Author: Saleem H, Zengin G, Khan KU, Ahmad I, Waqas M, Mahomoodally FM, Rengasamy KRR, Zainol N, Abidin SAZ, Ahemad N.
    Journal: Nat Prod Res; 2021 Feb; 35(4):664-668. PubMed ID: 30919661.
    Abstract:
    This study sets out to probe into total bioactive contents, UHPLC-MS secondary metabolites profiling, antioxidant (DPPH, ABTS, FRAP, CUPRAC, phosphomolybdenum and metal chelating) and enzyme inhibitory (acetylcholinesterase- AChE, butyrylcholinesterase- BChE, α-amylase, α glucosidase, and tyrosinase) activities of methanol extract of Aerva javanica, also known as desert cotton or Kapok bush. Aerva javanica contains considerable phenolic (44.79 ± 3.12 mg GAE/g) and flavonoid (28.86 ± 0.12 mg QE/g) contents which tends to correlate with its significant antioxidant potential for ABTS, FRAP and CUPRAC assays with values of 101.41 ± 1.18, 124.10 ± 1.71 and 190.22 ± 5.70 mg TE/g, respectively. The UHPLC-MS analysis identified the presence of 45 phytochemicals belonging to six major groups: phenolic, flavonoids, lignin, terpenes, glycoside and alkaloid. Moreover, the plant extract also showed potent inhibitory action against AChE (3.73 ± 0.22 mg GALAE/g), BChE (3.31 ± 0.19 mg GALAE/g) and tyrosinase (126.05 ± 1.77 mg KAE/g). The observed results suggest A. javanica could be further explored as a natural source of bioactive compounds.
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