Chemical evaluation and anticholinesterase activity of Hippeastrum puniceum (Lam.) Kuntz bulbs (Amaryllidaceae)



Document title: Chemical evaluation and anticholinesterase activity of Hippeastrum puniceum (Lam.) Kuntz bulbs (Amaryllidaceae)
Journal: Brazilian Journal of Pharmaceutical Sciences
Database: PERIÓDICA
System number: 000451512
ISSN: 1984-8250
Authors: 1
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2
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Institutions: 1Universidade Federal do Espirito Santo, Departamento de Ciencias Farmaceuticas, Vitoria, Espirito Santo. Brasil
2Universidade Federal do Espirito Santo, Departamento de Química, Vitoria, Espirito Santo. Brasil
3Universidade Federal do Espirito Santo, Departamento de Botanica, Sao Mateus, Espirito Santo. Brasil
4Universidad de Barcelona, Facultad de Farmacia, Barcelona. España
5Universidade de Brasilia, Faculdade de Ciencias da Saude, Brasilia, Distrito Federal. Brasil
Year:
Volumen: 57
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract Hippeastrum puniceum is a species that belongs to the Amaryllidaceae family. A particular characteristic of this family is the consistent and very specific presence of isoquinoline alkaloids, which have demonstrated a wide range of biological activities such as antioxidant, antiviral, antifungal, antiparasitic, and acetylcholinesterase inhibitory activity, among others. In the present work, fifteen alkaloids were identified from the bulbs of Hippeastrum puniceum (Lam.) Kuntz using a GC-MS approach. The alkaloids 9-O-demethyllycoramine, 9-demethyl-2α-hydroxyhomolycorine, lycorine and tazettine were isolated through chromatographic techniques. The typical Amaryllidaceae alkaloids lycorine and tazettine, along with the crude and ethyl acetate extract from bulbs of the species were evaluated for their inhibitory potential on α-amylase, α-glucosidase, tyrosinase and acetylcholinesterase activity. Although no significant inhibition activity was observed against α-amylase, α-glucosidase and tyrosinase from the tested samples, the crude and ethyl acetate extracts showed remarkable acetylcholinesterase inhibitory activity. The biological activity results that correlated to the alkaloid chemical profile by GC-MS are discussed herein. Therefore, this study contributed to the knowledge of the chemical and biological properties of Hippeastrum puniceum (Lam.) and can subsidize future studies of this species
Disciplines: Química
Keyword: Fitoquímica,
Farmacología,
Alcaloides isoquinolínicos,
Inhibición enzimática,
Acetilcolinesterasa,
Hippeastrum puniceum,
Amaryllidaceae
Keyword: Phytochemistry,
Pharmacology,
Isoquinoline alkaloids,
Enzymatic inhibition,
Acetylcholinesterase,
Hippeastrum puniceum,
Amaryllidaceae
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