Toxicidade do pólen de Mimosa tenuiflora para abelhas (Apis mellifera L.) africanizadas ABSTRACT ... more Toxicidade do pólen de Mimosa tenuiflora para abelhas (Apis mellifera L.) africanizadas ABSTRACT Background: Mimosa tenuiflora (Willd.) Poir. (Mimosaceae) is a xerophilous plant which is very common in degraded areas in the Brazilian semi-arid region, including areas of beekeeping. The ingestion of leaves from M. tenuiflora by ruminants is responsible for malformations. Chemical analyses of this plant revealed that it contains several secondary compounds including three triterpenoidal saponins, designated Mimonosides A-C, four flavones, five flavanones and four chalcones. Several plant species contain secondary compounds in nectar and pollen that could be toxic to pollinators, including bees. Experimental approaches are necessary to identify plant species that produce pollen that is toxic to bees. The present study aimed to determine the toxic potential of M. tenuiflora (Willd.) Poir. (Mimosaceae) pollen to Africanized honey bees (Apis mellifera L.).
Pre-Hispanic cultures that lived in territories of Central and South America practiced meliponicu... more Pre-Hispanic cultures that lived in territories of Central and South America practiced meliponiculture, extracting and processing honey and other products from several stingless bee species. Colonization of these territories introduced beekeeping of Apis mellifera, and practically eliminated meliponiculture. Nevertheless, honey of the species Trigona angustula (Latreille, 1811), called 'miel de angelita' (or 'little-angel honey') has retained a place in the traditional market, with about ten times the cost of A. mellifera honey. Due to its scarcity and to the fact that it is popularly considered to have medicinal properties. Although there are noticeable differences between miel de angelita and common A. mellifera honeys, the lack of objective quality standards has often allowed falsification. Thus, assessment of its physicochemi-cal properties is of interest. In this study, the main nutritional and physicochemical characteristics were analyzed in 44 samples from seven regions of Colombia. Results showed a major composition of 24.3 ±2.3% moisture, 23.5 ±6.4% glucose, 30.1 ±5.4% fructose and 4.2 ±2.4% disaccharides (sucrose and maltose).
Toxicidade do pólen de Mimosa tenuiflora para abelhas (Apis mellifera L.) africanizadas ABSTRACT ... more Toxicidade do pólen de Mimosa tenuiflora para abelhas (Apis mellifera L.) africanizadas ABSTRACT Background: Mimosa tenuiflora (Willd.) Poir. (Mimosaceae) is a xerophilous plant which is very common in degraded areas in the Brazilian semi-arid region, including areas of beekeeping. The ingestion of leaves from M. tenuiflora by ruminants is responsible for malformations. Chemical analyses of this plant revealed that it contains several secondary compounds including three triterpenoidal saponins, designated Mimonosides A-C, four flavones, five flavanones and four chalcones. Several plant species contain secondary compounds in nectar and pollen that could be toxic to pollinators, including bees. Experimental approaches are necessary to identify plant species that produce pollen that is toxic to bees. The present study aimed to determine the toxic potential of M. tenuiflora (Willd.) Poir. (Mimosaceae) pollen to Africanized honey bees (Apis mellifera L.).
Pre-Hispanic cultures that lived in territories of Central and South America practiced meliponicu... more Pre-Hispanic cultures that lived in territories of Central and South America practiced meliponiculture, extracting and processing honey and other products from several stingless bee species. Colonization of these territories introduced beekeeping of Apis mellifera, and practically eliminated meliponiculture. Nevertheless, honey of the species Trigona angustula (Latreille, 1811), called 'miel de angelita' (or 'little-angel honey') has retained a place in the traditional market, with about ten times the cost of A. mellifera honey. Due to its scarcity and to the fact that it is popularly considered to have medicinal properties. Although there are noticeable differences between miel de angelita and common A. mellifera honeys, the lack of objective quality standards has often allowed falsification. Thus, assessment of its physicochemi-cal properties is of interest. In this study, the main nutritional and physicochemical characteristics were analyzed in 44 samples from seven regions of Colombia. Results showed a major composition of 24.3 ±2.3% moisture, 23.5 ±6.4% glucose, 30.1 ±5.4% fructose and 4.2 ±2.4% disaccharides (sucrose and maltose).
Uploads
Papers by Dart SRK