Acta parasitologica · 2025
In Vitro Action of Papaya (Carica Papaya) Latex and Pure Papain Against Eimeria Bovis Oocysts.
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de Siqueira Lucas Nogueira, de Souza Débora Castro Toledo, Mamani Ruth Celestina Condori, Figueroa Lisseth Bibiana Puentes, Albuquerque Laísa Bastos, Moreira Tiago Facury, Braga Fabio Ribeiro, de Freitas Soares Filippe Elias
Аннотация
PURPOSE: Eimeria bovis is a protozoan disease-causing coccidiosis, a which affects significantly on the global cattle industry. Nonetheless, the control measures implemented have not been entirely effective, thus prompting the search for alternative methods for the parasitic and/or environmental control of the infecting forms (sporulated oocysts). The study aimed to evaluate the effect of papaya (Carica papaya) latex and pure papain on both sporulated and non-sporulated E. bovis oocysts.
METHODS: Oocysts were collected from the feces of calves previously inoculated with E. bovis and stored in a potassium dichromate solution. Subsequently, the oocysts were assessed for the application of aqueous solutions (both active and denatured) of latex and papain at concentrations of 10%, 15%, and 30% (w/v), alongside a control group (water), which were incubated at 28 °C for 48 h. A reduction in oocyst counts was observed in the treatments compared to the control group.
RESULTS: However, a significant difference (p < 0.01) was noted only at the concentration of 30% papain (m/v) in relation to the control.
CONCLUSION: The findings suggest that extracts of C. papaya, rich in papain, hold considerable potential for future applications in the control of E. bovis.
METHODS: Oocysts were collected from the feces of calves previously inoculated with E. bovis and stored in a potassium dichromate solution. Subsequently, the oocysts were assessed for the application of aqueous solutions (both active and denatured) of latex and papain at concentrations of 10%, 15%, and 30% (w/v), alongside a control group (water), which were incubated at 28 °C for 48 h. A reduction in oocyst counts was observed in the treatments compared to the control group.
RESULTS: However, a significant difference (p < 0.01) was noted only at the concentration of 30% papain (m/v) in relation to the control.
CONCLUSION: The findings suggest that extracts of C. papaya, rich in papain, hold considerable potential for future applications in the control of E. bovis.