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Screening of selected biological activities of Artocarpus lakoocha Roxb (Moraceae) fruit pericarp

Author(s): MB Shailendra Kumar, MC Rakesh Kumar, AC Bharath, HR Vinod Kumar, TR Prashith Kekuda, KC Nandini, MN Rakshitha, HL Raghavendra

Artocarpus lakoocha Roxb (Moraceae) is cultivated in Uttar Pradesh, Bengal, Khasi Hills and Western Ghats. Objectives of the present study were to de-termine antibacterial, antioxidant, anthelmintic and insecticidal efficacy of methanol extract of A. lakoocha fruit pericarp. Antibacterial activity was tested against by Agar well diffusion method. Antioxidant activity in terms of free radical scavenging ability was determined by DPPH free radical scavenging assay. Anthelmintic efficacy was determined using adult Indian earthworm. Insecticidal activity was tested against sec-ond and third instar larvae of Aedes aegypti. The extract has shown dose depend-ent antibacterial, antioxidant, anthelmintic and insecticidal activity. Among bacteria, S. aureus has shown more susceptibility than K. pneumoniae and P. aeruginosa. The extract exhibited marked antioxidant activity by scavenging DPPH free radical. The IC50 value for extract was found to be 49.42μg/ml. The extract exhibited marked an-thelmintic activity by causing paralysis and death of worms and the effect was found to be dose dependent. The extract concentration 100mg/ml has shown marked an-thelmintic effect than standard drug. In insecticidal study, the 2nd instar larvae were shown to be more susceptible than 3rd instar larvae. Phytochemical analysis revealed the presence of tannins and alkaloids. The presence of these phytoconstituents might be responsible for the biological activities of extract tested. The extract could be used to treat free radical damage, bacterial and helmintic infections and to control insect vectors. Further studies on isolation of constituents and their bio-efficacies in vitro and in vivo are under investigation.

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