Rev. Bras. Saúde Prod. Anim., Salvador, v.15, n.3, p.731-739 jul./set., 2014 http://www.rbspa.ufba.br ISSN 1519 9940 731 Qualidade do mel de Apis mellifera L. relacionadas às boas práticas apícolasHoney quality from "Apis mellifera" L. related to good apicultural practices

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In light of the unfavorable climatic conditions for keeping Africanized bees in apiaries in the Brazilian semiarid, especially during the dry season, this study aimed to assess how the internal water supply in beehives influences the development of Africanized bee during this period in the semiarid region of Piaui state (PI), Brazil. The experiment was conducted in September and October 2016, in the Experimental Apiary of the Study Group on Bees of the Piaui Semiarid, located in Picos (PI). The hives were standardized in terms of population size and amount of food. To that end, a data sheet was filled out and the brood area measured (cm²) at the beginning and end of the experiment. Graduated 500 mL Boardman entrance feeders filled with potable water were installed to measure daily water consumption during the experiment. There was a significant variation in water use by the bees, with average daily consumption of 74.6 mL ± 25.5. With respect to colony development, there was an increase in the number of frames and brood area. Internal water supply can be recommended as a suitable management technique for bee colonies during the dry season in the semiarid.

This study aimed to evaluate the quality of honey from Apis mellifera L. obtained in Piauí, Brazil. The completely randomized design (CRD) was used in the experiments. Two treatments of honey were prepared: one from beekeepers that use Extraction Units for Bee Products (EUBP) with Best practices for beekeeping (T1), and another one from those which use EUBP without the best practices (T2). Parameters analyzed were: moisture, water activity (aw), pH, acidity, color, detection of Salmonella spp., MPN.g-1 of coliforms at 35°C and at 45°C, counting of coagulase-positive Staphylococcus, standard counting of mesophilic heterotrophic bacteria and detection of yeast and filamentous fungi. The counting of mesophilic heterotrophic bacteria and yeast and filamentous fungi showed abnormalities (p<0.05) in the counting performed in log 10 .g-1 with samples of T1 and T2, respectively. There were presence of fungi of various genus and species, especially Aspergillus spp. and Penicillium spp. The quality of honey from Apis mellifera bees from Piauí, Brazil, was satisfactory regarding parameters of moisture, aw, pH and HMF. Neither Salmonella spp., nor coliforms, nor coagulase-positive Staphylococcus were found. The presence of filamentous fungi in the samples reinforces the need for quality control of honey from Piauí, Brazil.

Avaliou-se o efeito das proporções dos méis novos e velhos na constituição de “blends” utilizadas no processamento industrial sobre a qualidade do mel durante o armazenamento. Foram utilizadas seis amostras provenientes de méis novos e seis de méis de safras anteriores coletadas no depósito de matéria prima do entreposto. O experimento foi montado em um delineamento inteiramente casualizado em esquema fatorial com seis tratamentos (proporções) e dois tempos (dois meses) com seis repetições (amostras). Foram consideradas como tratamentos as proporções das misturas de mel de safra nova e mel, considerando-se o hidroximetilfurfural (HMF) como padrão para elaboração das proporções, em que: T1 – mel antigo + mel novo (4:1); T2 – mel antigo + mel novo (3:1); T3 – mel antigo + mel novo (2:1); T4 – mel antigo + mel novo (1:1); T5 – mel novo (0:1); T6 – mel antigo (1:0). As maiores proporções de mel antigo nas misturas reduzem a qualidade e a vida de prateleira dos méis, considerando o HMF como indicador.

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The objective of this work was to characterize nutritional parameters of bee pollens from plant species occurring in a semiarid region, in Picos, state of Piaui, Brazil. Bee pollen samples were collected from the experimental apiary of the Study Group on Bees from the Semiarid Region of Piaui (GEASPI/UFPI) and subjected to melissopalynological analysis to determine their botanical origins, and bromatological analysis (crude protein, lipids, fibers, and ash) in the Laboratory of Animal Nutrition of the Department of Zootechnics of the Federal University of Piaui (UFPI), in Teresina, Piaui (DZO/UFPI/Teresina). Six plant species (Aspilia sp., Senna obtusifolia,Mimosa pudica L., Cupheaericoides, Croton sp., and Mimosa caesalpiniifolia) were predominant for bee pollen production in the study area. Therefore, the nutritional compositions of the pollen produced in the Caatinga area varied according to their botanical origin, as shown by the crude protein (20.75% to 38.18%), fiber (0.53% to 1.37%), lipid (0.49% to 4.7%), and total mineral (2.56 to 4.17%) contents. Bromatological parameters also varied according to the botanical origin of the pollens evaluated. The study region has considerable diversity of pollinator plant species that provide bee pollens with a wide spectrum of nutritional characteristics.