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Molluscicidal activity ofSapindus mukorossiandTerminalia chebulaagainst the freshwater snailLymnaea acuminata

Authors
Journal
Chemosphere
0045-6535
Publisher
Elsevier
Publication Date
Volume
83
Issue
4
Identifiers
DOI: 10.1016/j.chemosphere.2010.12.066
Keywords
  • Lymnaea Acuminata
  • Sapindus Mukorossi
  • Terminalia Chebula
  • Plant Molluscicide

Abstract

Abstract The molluscicidal activity of Sapindus mukorossi and Terminalia chebula fruit powder against the vector snail Lymnaea acuminata was time and concentration dependent. The molluscicidal activity of T. chebula fruit powder (96 h LC 50:93.59 mg L −1) was more pronounced than that of S. mukorossi fruit powder (96 h LC 50:119.57 mg L −1). Ethanolic extracts of S. mukorossi and T. chebula fruit powder were more toxic than their other organic solvent extracts. The molluscicidal activity of ethanolic extract of S. mukorossi fruit powder (24 h LC 50:2.75 mg L −1) was more effective than the ethanolic extract of T. chebula fruit powder (24 h LC 50:124.06 mg L −1). The 96 h LC 50 of column-purified fraction of S. mukorossi fruit powder was 5.43 mg L −1 whereas those of T. chebula fruit powder was 7.49 mg L −1. Column, thin layer and high performance liquid chromatography analysis demonstrates that the active molluscicidal component in S. mukorossi and T. chebula is saponin (96 h LC 50:1.31 mg L −1) and tannic acid (96 h LC 50:1.64 mg L −1), respectively. These plants may be used as potent source of molluscicides against the snail L. acuminata.

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