Executive Secretary

9th Symposium “Design, production and development of drugs” and 4th International Symposium “Chemistry of natural products” "SIQF 2025"

IX International Symposium on Chemistry and Pharmaceutical Sciences

SIQF 2025

9th Symposium “Design, production and development of drugs” and 4th International Symposium “Chemistry of natural products”

Photoprotective effect of extracts obtained from the leaves of Jatropha gossypifolia

Problem: Overexposure to solar radiation in humans constitutes a public health problem due to the carcinogenic effect of ultraviolet radiation. However, medicinal plants can be used as photoprotectors in different preparations.

Ojective: The objective of this work is to evaluate the photoprotective activity of the extracts obtained from the leaves of Jatropha gossypifolia L.

Material and Methods: First, phytochemical screening was performed to qualitatively determine the metabolites present in the extract. The sun protection factor was calculated using the Mansur equation.

Result: The dry drug was characterized and aqueous, ethanolic and hydroalcoholic extracts were prepared from the leaves of Jatropha gossypifolia. Phytochemical screening showed the presence of saponins, alkaloids, flavonoids, free amino acids, coumarinsand reducing sugars. It was determined that J. gossypifolia extracts have a high content of total flavonoids (673.1 μgQE/mg) which are related to photoprotective activity. The calculation of the sun protection factor through the Mansur equation allowed the aqueous and ethanolic extract at 100 ppm to be classified as medium protector, resulting in all extracts at 500 ppm having high protection. Finally, a proposal for a photoprotective formulation was made that included Jatropha gossypifolia extract in the aqueous phase.

Conclusion: The hydroalcoholic extract of Jatropha gossypifolia showed a photoprotective effect.

Problemática: La sobreexposición a la radiación solar en humanos constituye un problema de salud pública debido al efecto carcinógeno de la radiación ultravioleta. Sin embargo, las plantas medicinales pueden utilizarse como fotoprotectoras en diferentes preparaciones.

Objetivo: Evaluar la actividad fotoprotectora de losextractos obtenidos a partir de las hojas de Jatropha gossypifolia L. Se caracterizó la droga seca y se elaboraron extractos acuosos, etanólico e hidroalcohólico a partir de las hojas de Jatropha gossypifolia.

Materiales y Métodos: Primeramente, se realizó el tamizaje fitoquímico para determinar cualitativamente los metabolitos presentes en el extracto. Se calculó el factor de protección solar a través de la ecuación de Mansur.

Resultados: El tamizaje fitoquímico mostró la presencia de saponinas, alcaloides, flavonoides, aminoácidos libres, coumarinas y azúcares reductores. Se determinó que los extractos de J. gossypifolia presentan alto contenido en flavonoides totales (673,1μgQE/mg), los cuales se relacionan con la actividad fotoprotectora. El cálculo del factor de protección solar a través de la ecuación de Mansur permitió clasificar como protector medio al extracto acuoso y etanólico a 100 ppm, resultando de protección alta todos los extractos a 500 ppm. Finalmente se realizó una propuesta de formulación fotoprotectora que incluyó el extracto de Jatropha gossypifolia en la fase acuosa.

Conclusiones: El extracto hidroalcohólico d Jatropha gossypifolia mostró efecto fotoprotector.

About The Speaker

Arelys López Sacerio

MsC. Arelys López Sacerio

UCLV Flag of Cuba

Discussion

Practical Info
Spanish / Español
October 22, 2025 10:33 AM
3 minutes
Salon 1
Authors
MsC. Arelys López Sacerio
Mirtha Mayra Gonzales Bedia
Lissany Verónica García García
Keywords
efecto fotoprotector
emulgeles
emulgelsy
jatroha gossypifolia
jatropha gossypifolia
photoprotective activity
Documents


Liliana Vicet Muro
Havana Club
Álamo Empresa Cárnica Gold
REFINERÍA SERGIO SOTO Gold
Instituto Finlay de Vacunas Silver
CIDEM Silver