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Chemical composition and free radical scavenging activity of pollen loads from stingless bee Melipona subnitida Ducke
Abstract Bee-collected pollen (“bee pollen”) is promoted as a health food with a wide range of nutritional and therapeutic properties. In order to evaluate the chemical composition, botanical originExpand
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Palynological Origin, Phenolic Content, and Antioxidant Properties of Honeybee-Collected Pollen from Bahia, Brazil
The aim of this study was to determine the palynological origin, phenolic and flavonoid content, and antioxidant properties of twenty-five samples of bee pollen harvested during a nine-month periodExpand
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Chemical composition, botanical evaluation and screening of radical scavenging activity of collected pollen by the stingless bees Melipona rufiventris (Uruçu-amarela).
Stingless bees in Brazil are indigenous and found all over the country. Bee pollen is used for its nutritional value in the human diet. It is made up of natural flower pollen mixed with nectar andExpand
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Brine shrimp bioassay of some species of Solanum from Northestern Brazil
The methanolic extracts of 13 Specieis of the genus Solanum (Solanaceae) have been tested for bioactivity in Artemia salina. The extracts investigated were prepared from various parts (aerial parts,Expand
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Composition and Antioxidant Activity of Geopropolis Collected by Melipona subnitida (Jandaíra) Bees
An investigation of the geopropolis collected by Melipona subnitida (jandaíra) stingless bee led to the isolation and characterization of two phenylpropanoids, 6-O-p-coumaroyl-D-galactopyranose (1)Expand
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Molluscicidal activity of 2-hydroxy-[1,4]naphthoquinone and derivatives.
The toxic profile of lawsone (2-hydroxy-[1,4]naphthoquinone) and a series of [1,4]naphthoquinone derivatives was evaluated against the brine shrimp Artemia salina and against the mollusk BiomphalariaExpand
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Avaliação da bioatividade dos extratos de cúrcuma (Curcuma longa L., Zingiberaceae) em Artemia salina e Biomphalaria glabrata
The turmeric is the clean rhizome at good conditions, dried and powdered of Curcuma longa L., an herbaceous plant of Zingiberaceae family. Aiming new alternatives for Schistosomiasis control, theExpand
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Anti-allergic effect of bee pollen phenolic extract and myricetin in ovalbumin-sensitized mice.
ETHNOPHARMACOLOGICAL RELEVANCE The bee pollen is used in folk medicine to alleviate allergic reactions. The bee pollen phenolic extract (BPPE) consists in phenolic compounds (flavonoids) from plantsExpand
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Improved synthesis of seven aromatic Baylis-Hillman adducts (BHA): evaluation against Artemia salina Leach. and Leishmania chagasi.
We described a very efficient procedure to prepare seven aromatic compounds (1-7), a new class of antileishmanial substances, through Baylis-Hillman reaction (BHR). With one, all the Baylis-HillmanExpand
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Cytotoxic activities against Ehrlich carcinoma and human K562 leukaemia of alkaloids and flavonoid from two Solanum Species
Diversas especies do genero Solanum apresentam glicoalcaloides e flavonoides com grande variedade de atividades biologicas. O flavonoide tiliroside (1), uma fracao rica em glicoalcaloides denominadaExpand
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