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Evaluation of the Molluscicidal Activity of Aqueous and Ethanolic Extracts of the Neorautanenia Mitis Plant Against Snail Intermediate Hosts of Bilharziasis in the Laboratory

Received: 20 October 2025     Accepted: 31 October 2025     Published: 11 December 2025
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Abstract

Schistosomiasis remains a major public health problem in tropical countries and especially in DR Congo. One of the main preventive measures against trematode infection is the control of the disease vector population through the use of molluscicides. The objective of this work is focused on the fight against bilharzia intermediate host snails using extracts of the Neorautanenia mitis plant from the East of the Democratic Republic of Congo against the snails Biomphalaria pfeifferi intermediate host of bilharziasis. For the identification of the different characteristics of the plant, we used phytochemical tests based on color or precipitation reactions and a test of molluscicidal activities to know the lethal concentrations of the extracts were carried out. Analysis of the plant Neorautanenia mitis shows that this plant is pharmacologically active against snail intermediate hosts of bilharziasis. It contains phenol, terpene and saponin which are recognized as molluscicidal and insecticidal substances. The mortality rate is greater than 50% at a concentration of up to 0.002mg/L of the crude extracts in ethanol of this plant. This plant is very poisonous than these other plants. But the responsible substance is not yet well determined and deserves very detailed studies of the extraction of the different responsible substances and their tests on molluscs before determining the structure of this substance.

Published in International Journal of Pharmacy and Chemistry (Volume 11, Issue 6)
DOI 10.11648/j.ijpc.20251106.11
Page(s) 113-118
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2025. Published by Science Publishing Group

Keywords

Molluscicidal Plant, Neorautanenia Mitis, Aqueous Extracts, Organic Extracts, Phytochemistry, Molluscicidal Activity

References
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[9] Batumike C., Bagalwa M., Ndegeyi K., Bahizire K., Babwiriza K., Tamani M., Baluku B., 2019. Contribution à l’étude parasitologique des mollusques Physa acuta (Gasteropoda: Physidae) dans la région de Katana, Est de la République Démocratique du Congo. REB-PASRES, 4, 2, 43 -51.
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[11] Singh S. K., Yadav R. P., and Singh A., 2010. Molluscicides from some common medicinal plants of eastern Uttar Pradesh, India. Journal of Applied Toxicology, 30, 1, 1–7.
[12] Al-Daihan S., 2010. Effect of plant molluscicide on selected enzymes related to energy metabolism in Biomphalaria arabia snails molluscan hosts to Schistosoma mansoni in Saudi Arabia. J. Egypt. Soc. Parasitol., 40, 187-195.
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[18] Olivier L., and Scheiderman, 1956. A method for estimation of the density of aquatic snail population. Exp. Parasitol., 10 p.
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Cite This Article
  • APA Style

    Bagalwa, J. J. M., Nshombo, P. K., Nfundiko, A. K., Karume, K. (2025). Evaluation of the Molluscicidal Activity of Aqueous and Ethanolic Extracts of the Neorautanenia Mitis Plant Against Snail Intermediate Hosts of Bilharziasis in the Laboratory. International Journal of Pharmacy and Chemistry, 11(6), 113-118. https://doi.org/10.11648/j.ijpc.20251106.11

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    ACS Style

    Bagalwa, J. J. M.; Nshombo, P. K.; Nfundiko, A. K.; Karume, K. Evaluation of the Molluscicidal Activity of Aqueous and Ethanolic Extracts of the Neorautanenia Mitis Plant Against Snail Intermediate Hosts of Bilharziasis in the Laboratory. Int. J. Pharm. Chem. 2025, 11(6), 113-118. doi: 10.11648/j.ijpc.20251106.11

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    AMA Style

    Bagalwa JJM, Nshombo PK, Nfundiko AK, Karume K. Evaluation of the Molluscicidal Activity of Aqueous and Ethanolic Extracts of the Neorautanenia Mitis Plant Against Snail Intermediate Hosts of Bilharziasis in the Laboratory. Int J Pharm Chem. 2025;11(6):113-118. doi: 10.11648/j.ijpc.20251106.11

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  • @article{10.11648/j.ijpc.20251106.11,
      author = {Jean Jacques Mashimango Bagalwa and Prince Kilamwaka Nshombo and Antoine Kaguku Nfundiko and Katcho Karume},
      title = {Evaluation of the Molluscicidal Activity of Aqueous and Ethanolic Extracts of the Neorautanenia Mitis Plant Against Snail Intermediate Hosts of Bilharziasis in the Laboratory},
      journal = {International Journal of Pharmacy and Chemistry},
      volume = {11},
      number = {6},
      pages = {113-118},
      doi = {10.11648/j.ijpc.20251106.11},
      url = {https://doi.org/10.11648/j.ijpc.20251106.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijpc.20251106.11},
      abstract = {Schistosomiasis remains a major public health problem in tropical countries and especially in DR Congo. One of the main preventive measures against trematode infection is the control of the disease vector population through the use of molluscicides. The objective of this work is focused on the fight against bilharzia intermediate host snails using extracts of the Neorautanenia mitis plant from the East of the Democratic Republic of Congo against the snails Biomphalaria pfeifferi intermediate host of bilharziasis. For the identification of the different characteristics of the plant, we used phytochemical tests based on color or precipitation reactions and a test of molluscicidal activities to know the lethal concentrations of the extracts were carried out. Analysis of the plant Neorautanenia mitis shows that this plant is pharmacologically active against snail intermediate hosts of bilharziasis. It contains phenol, terpene and saponin which are recognized as molluscicidal and insecticidal substances. The mortality rate is greater than 50% at a concentration of up to 0.002mg/L of the crude extracts in ethanol of this plant. This plant is very poisonous than these other plants. But the responsible substance is not yet well determined and deserves very detailed studies of the extraction of the different responsible substances and their tests on molluscs before determining the structure of this substance.},
     year = {2025}
    }
    

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  • TY  - JOUR
    T1  - Evaluation of the Molluscicidal Activity of Aqueous and Ethanolic Extracts of the Neorautanenia Mitis Plant Against Snail Intermediate Hosts of Bilharziasis in the Laboratory
    AU  - Jean Jacques Mashimango Bagalwa
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    JF  - International Journal of Pharmacy and Chemistry
    JO  - International Journal of Pharmacy and Chemistry
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    PB  - Science Publishing Group
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    AB  - Schistosomiasis remains a major public health problem in tropical countries and especially in DR Congo. One of the main preventive measures against trematode infection is the control of the disease vector population through the use of molluscicides. The objective of this work is focused on the fight against bilharzia intermediate host snails using extracts of the Neorautanenia mitis plant from the East of the Democratic Republic of Congo against the snails Biomphalaria pfeifferi intermediate host of bilharziasis. For the identification of the different characteristics of the plant, we used phytochemical tests based on color or precipitation reactions and a test of molluscicidal activities to know the lethal concentrations of the extracts were carried out. Analysis of the plant Neorautanenia mitis shows that this plant is pharmacologically active against snail intermediate hosts of bilharziasis. It contains phenol, terpene and saponin which are recognized as molluscicidal and insecticidal substances. The mortality rate is greater than 50% at a concentration of up to 0.002mg/L of the crude extracts in ethanol of this plant. This plant is very poisonous than these other plants. But the responsible substance is not yet well determined and deserves very detailed studies of the extraction of the different responsible substances and their tests on molluscs before determining the structure of this substance.
    VL  - 11
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Author Information
  • Department of Biology, Centre de Recherche en Sciences Naturelles, Lwiro, Democratic Republic of Congo;Faculté de Médecine, Université Evangélique en Afrique, Bukavu, République Démocratique du Congo

  • Faculte des Sciences Environnementales, Université du Cinquantenaire de Lwiro, Kabare, République Démocratique du Congo

  • Faculté de Médecine, Université Evangélique en Afrique, Bukavu, République Démocratique du Congo;Département de Chirurgie, Hopital de Panzi, Bukavu, République Démocratique du Congo

  • Faculté des Sciences Agronomiques et Environnement, Université Evangélique en Afrique, Bukavu, République Démocratique du Congo;Centre de Recherche en Géothermie, Bukavu, République Démocratique du Congo

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