Aislamiento y elucidación de metabolitos secundarios del alga marrón Lessonia trabeculata recolectada en la Caleta de Quilca
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Pontificia Universidad Católica del Perú
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Resumen
Las algas marinas, especialmente las algas marrones (Phaeophyceae), son recursos
naturales valiosos por su riqueza en metabolitos bioactivos con aplicaciones en las industrias
farmacéutica, alimentaria y cosmética. En el Perú, Lessonia trabeculata, una especie
endémica de la costa del Pacífico destaca por su contenido de compuestos como alginatos,
fucoidanos, fucosterol, fucoxantina y floroglucinoles; pero su composición química y potencial
han sido poco estudiados. La investigación tiene como objeto aislar y elucidar metabolitos
secundarios de Lessonia Trabeculata para sentar las bases de futuros estudios y aplicaciones
industriales, promoviendo su uso sostenible en un contexto regulado por medidas
gubernamentales que protegen los ecosistemas marinos. Se recolectó e identificó
botánicamente la especie en su hábitat natural, verificando su clasificación taxonómica
mediante características morfológicas. Los metabolitos secundarios se extrajeron mediante
Soxhlet con acetato de etilo, se separaron y purificaron por cromatografía en columna,
cromatografía de capa fina y cristalización, y se caracterizaron utilizando espectroscopia
infrarroja (IR), resonancia magnética nuclear (RMN de ¹H y ¹³C) , técnicas bidimensionales
(HSQC, DEPT, APT) en dos compuestos aislados como LS01 y LS02. Se propone también
las probables estructuras de los compuestos mencionados.
Seaweeds, particularly brown algae (Phaeophyceae), are valuable resources due to their rich content of bioactive metabolites with applications in the pharmaceutical, food, and cosmetic industries. In Peru, Lessonia trabeculata, an endemic species of the Pacific coast, show up for its content of compounds such as alginates, fucoidans, fucosterol, fucoxanthin, and phloroglucinols; however, its chemical composition and potential remain understudied. This research aims to isolate and characterize secondary metabolites from Lessonia trabeculata to lay the foundation for future studies and industrial applications, promoting its sustainable use within a framework regulated by governmental measures that protect marine ecosystems. The species was collected and botanically identified in its natural habitat, with its taxonomic classification verified through morphological characteristics. Secondary metabolites were extracted using Soxhlet with ethyl acetate, separated, and purified by column chromatography, thin-layer chromatography, and crystallization, and characterized using infrared spectroscopy (IR), nuclear magnetic resonance (NMR of ¹H and ¹³C), two-dimensional techniques (HSQC, DEPT, APT) for two isolated compounds, LS01 and LS02. The probable structures of the mentioned compounds are proposed are also proposed.
Seaweeds, particularly brown algae (Phaeophyceae), are valuable resources due to their rich content of bioactive metabolites with applications in the pharmaceutical, food, and cosmetic industries. In Peru, Lessonia trabeculata, an endemic species of the Pacific coast, show up for its content of compounds such as alginates, fucoidans, fucosterol, fucoxanthin, and phloroglucinols; however, its chemical composition and potential remain understudied. This research aims to isolate and characterize secondary metabolites from Lessonia trabeculata to lay the foundation for future studies and industrial applications, promoting its sustainable use within a framework regulated by governmental measures that protect marine ecosystems. The species was collected and botanically identified in its natural habitat, with its taxonomic classification verified through morphological characteristics. Secondary metabolites were extracted using Soxhlet with ethyl acetate, separated, and purified by column chromatography, thin-layer chromatography, and crystallization, and characterized using infrared spectroscopy (IR), nuclear magnetic resonance (NMR of ¹H and ¹³C), two-dimensional techniques (HSQC, DEPT, APT) for two isolated compounds, LS01 and LS02. The probable structures of the mentioned compounds are proposed are also proposed.
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Metabolitos, Algas marinas--Aplicaciones industriales--Perú--Quilca (Arequipa : Distrito), Caletas--Perú--Quilca (Arequipa : Distrito)
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