Assessment of the molluscicidal activity of the methanolic seed extracts of Ziziphus spina‐christi and Carica papaya on immunological and molecular aspects of Biomphalaria alexandrina snails

2020 ◽  
Author(s):  
Amina Mohamed Ibrahim ◽  
Sara S. M. Sayed
Keyword(s):  
Carica Papaya ◽  
Biomphalaria Alexandrina ◽  
Molecular Aspects ◽  
Molluscicidal Activity ◽  
Seed Extracts

scholarly journals Spirostanol Saponins from Asparagus sprengeri and Their Molluscicidal Activity

2007 ◽  
Vol 2 (7) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Mona A. Mohamed
Keyword(s):  
Schistosoma Mansoni ◽  
Intermediate Host ◽  
Spectroscopic Data ◽  
Dry Powder ◽  
Biomphalaria Alexandrina ◽  
Butanol Extract ◽  
Spirostanol Saponins ◽  
Molluscicidal Activity ◽  
C Nmr

Two new spirostane saponins namely (25 R)-6α-[(β-D-glucopyranosyl)oxy]-5α-spirostan-3β-yl β-D-galactopyranoside (1) and (25 R)-6α-[(β-D-glucopyranosyl)oxy]-27-hydroxy-5α-spirostan-3β-yl β-D-glucopyranoside (2), together with three known metabolites (25 S)-5β-spirostan-3-β-yl O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranoside (3), (25 R)-5α-spirostan-3-β-yl O-β-D-galactopyranosyl-(1→2)- O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside (4) and (25 R)-5α-spirostan-3-β-yl O-β-D-glucopyranosyl-(1→3)- O-[β-D-xylopyranosyl-(1→2)]- O-β-D-glucopyranosyl-(1→4)-β-D-glactopyranoside (5) were identified from the leaves of Asparagus sprengeri Regel (Asparagaceae). Determination of the structures was based on chemical and spectroscopic data (HRESI-MS/MSn, 1H, DEPT 13C NMR, 1H-1H COSY, HSQC and HMBC). The dry powder, the 1-butanol extract of the leaves, and the isolated compounds (3–5) exhibited molluscicidal properties against Biomphalaria alexandrina snails (the intermediate host of Schistosoma mansoni) [LC90 = 150, 40, 7, 10 and 13 ppm, respectively], while compounds 1 and 2 were molluscicidally inactive.

scholarly journals Molluscicidal Activity of SomeSolanumSpecies Extracts against the SnailBiomphalaria alexandrina

2009 ◽  
Vol 2009 ◽  
pp. 1-5 ◽  
Author(s):  
Gehad T. El-Sherbini ◽  
Rawia A. Zayed ◽  
Eman T. El-Sherbini
Keyword(s):  
Biological Control ◽  
Intermediate Host ◽  
Ethanol Extract ◽  
Phytochemical Analysis ◽  
Parasitic Disease ◽  
Research Issue ◽  
Biomphalaria Alexandrina ◽  
Herbal Preparations ◽  
Mature Leaves ◽  
Molluscicidal Activity

Background. Snails' species are associated with transmission parasitic disease as intermediate host. Biological control stands to be a better alternative to the chemical controls aimed against snails. The search of herbal preparations that do not produce any adverse effects in the non-target organisms and are easily biodegradable remains a top research issue for scientists associated with alternative molluscicides control.Method. Solvent extracts of fresh mature leaves ofS. nigrum, S. villosum, and S. sinaicumwere tested againstBiomphalaria alexandrina, a common intermediate host ofschistosoma mansoni. A phytochemical analysis of chloroform: ethanol extract was performed to search for active toxic ingredient. The lethal concentration was determined.Results. Extracts isolated from mature leaves ofSolanumspecies were found to be having molluscicidal properties.S. nigrumextract was recorded as the highest mortality rate. When the mortality of different solvent extracts was compared, the maximum () mortality was recorded at a concentration of 90 ppm of ethanol extract ofS. nigrum.Conclusion. Extract of mature leaves ofS. nigrumexhibited molluscicidal activity followed byS. sinaicumand the less one wasS. villosum. The study provides considerable scope in exploiting local indigenous resources for snails' molluscicidal agents.

scholarly journals MOLLUSCICIDAL ACTIVITY OF ZINGIBER OFFICINALE AND CARICA PAPAYA ON THE EGG HATCHABILITY OF THE GOLDEN APPLE SNAIL, POMACEA CANALICULATA (GASTROPODA: AMPULIRIIDAE)

2021 ◽  
Vol 40 (2) ◽  
pp. 40-50
Author(s):  
Hasnun Nita Ismail ◽  
Nadia Nisha Musa
Keyword(s):  
Carica Papaya ◽  
Ethanolic Extract ◽  
Zingiber Officinale ◽  
Freshwater Snail ◽  
Pomacea Canaliculata ◽  
Apple Snail ◽  
Natural Ecosystems ◽  
Egg Hatchability ◽  
Golden Apple Snail ◽  
Molluscicidal Activity

The study was conducted to assess the effect of Zingiber officinale and Carica papaya extract on the egg hatchability of the golden apple snail, Pomacea canaliculata. This is a freshwater snail that is considered a pest in agriculture as well as natural ecosystems. In combating the population of the aforementioned pest, this study evaluates the use of plant extracts such as biomolluscicides to control the production of new hatchlings from the clusters of eggs. The egg clusters were exposed to different concentrations of Z. officinale ethanolic extract and C. papaya methanolic extracts (25 ppm, 50 ppm, 100 ppm) using the direct single spraying method. Observation was made for a maximum of 30 days. The time taken for the eggs to hatch and the number of eggs successfully hatched were measured to reflect the potential of both extracts in affecting egg hatchability. The finding shows that the eggs hatch later when exposed to increasing concentrations (25 to 100 ppm) of Z. officinale extract. The number of eggs successfully hatched was significantly decreased from 86% to 9% after exposure to 25 ppm and above. Meanwhile, the extract of C. papaya did not show any significant effect on both parameters for egg hatchability of P. canaliculata, regardless of the increase in concentration from 25 to 100 ppm. Our findings reveal that the extract of Z. officinale contains higher molluscicidal activity than the extract of C. papaya. Therefore, it has the potential to be commercialized as a biomolluscicide to control the population of golden apple snails specifically at the egg stage.

Anti-trypanosomal activity of Carica papaya aqueous seed extracts in mice

2012 ◽  
Vol 9 (2) ◽  
pp. 617-622
Author(s):  
Nurul Jamiiah A. Samad ◽  
B.A.H. Zainal-Abidin
Keyword(s):  
Carica Papaya ◽  
Seed Extracts
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