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  • Title: Antifungal and antioxidant pyrrole derivative from Piper pedicellatum.
    Author: Tamuly C, Dutta PP, Bordoloi M, Bora J.
    Journal: Nat Prod Commun; 2013 Oct; 8(10):1451-4. PubMed ID: 24354199.
    Abstract:
    In continuation of our search for efficient pest control natural products from the flora of the South Eastern Sub-Himalayan biodiversity region, we have investigated wild edible Piper pedicellatum C. DC (Piperaceae) from Arunachal Pradesh, India against five important plant pathogenic fungi through an activity guided method, and a new compound, pedicellamide, was isolated. The structure was determined on the basis of extensive spectroscopic studies and confirmed by X-ray crystallography. The compound exhibited antifungal activities against the phytopathogenic fungal organisms Rhizoctonia solani (MIC 38.4 +/- 1.6 microg/mL), Fusarium oxysporum (MIC 29.7 +/- 0.8 microg/mL), Aspergillus niger (MIC 48.6 +/- 0.7 microg/mL), Puccinia gramini (MIC 46.8 +/- 1.4 microg/mL) and Curvularia lunata (MIC 49.1 +/- 0.1 microg/mL). Additionally, the antioxidant potential of the compound was estimated by DPPH, ABTS and FRAP assay and found to be 2.87 +/- 0.20, 2.19 +/- 0.13 and 3.96 +/- 0.17 VCEAC (microM/g), respectively.
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