Caracterizações microbiológica e físico-química de pólens armazenados por abelhas sem ferrão

Bárbara, Marivalda Figueredo Santa; Machado, Cerilene Santiago; Sodré, Geni da Silva; Silva, Fabiane de Lima; Carvalho, Carlos Alfredo Lopes de

doi:10.1590/1981-6723.18017

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Para ello, se tomó 1 mL de la primera dilución y se añadió en el tubo para completar 10 mL, luego se realizó el mismo procedimiento hasta completar tres diluciones. Las colonias formadas en las placas fueron contadas y expresadas como unidades formadoras de colonia/gramo (UFC/gr) (5,18,19).…”

Section: Materiales Y Métodosunclassified

Caracterización microbiológica de polen seco y congelado en Viracachá-Colombia

2020

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Objetivo. Caracterizar microbiológicamente el polen seco y congelado producido en el municipio de Viracachá-Boyacá. Materiales y métodos. A través de un estudio transversal descriptivo cuantitativo se tomaron muestras de 5 apiarios, cada uno con 10 colmenas, separando el polen en seco y congelado, determinando para cada muestra: aerobios mesófilos, coliformes totales, coliformes fecales, Staphylococcus aureus, Clostridium sulfito reductor y hongos. Los datos obtenidos se analizaron de acuerdo a normatividades internacionales y se compararon con resultados de investigaciones en otros países. Resultados. Se encontraron coliformes totales y fecales en tres de los cinco apiarios evaluados y solo en muestras de polen seco. Además, en dos apiarios cuando se analizó polen seco se encontró Staphylococcus aureus. Los resultados microbiológicos de la mayoría de las muestras se encuentran dentro de los rangos de algunas normatividades internacionales, sin embargo, los mejores resultados en cuanto a calidad microbiológica se determinaron para el polen congelado. Conclusiones. El proceso de congelamiento del polen ofrece ventajas relativas al mantenimiento de la calidad microbiológica en comparación con el proceso de secado. Se hace necesario evaluar la calidad microbiológica de ambos productos a través del tiempo de almacenamiento.

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Section: Materiales Y Métodosunclassified

Caracterización microbiológica de polen seco y congelado en Viracachá-Colombia

2020

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Chemical Characterization and Biological Activities of Jandaíra Stingless Bee Products (Melipona subnitida, Ducke, 1911): A Brief Review

de Menezes Dantas,

Rodrigues dos Santos Barbosa,

Silva Macêdo

et al. 2024

Chemistry & Biodiversity

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This review aimed to select, analyze and gather data published in the literature focusing on the chemical profile and bioactivities described for M. subnitida products. Data collection was carried out through the Capes Journal Portal platform, using the following databases: Web of Science, Scopus, and PubMed. Original articles published in English and Portuguese were included, with no time limitation. The chemical composition of M. subnitida products has been investigated through chromatographic analysis, demonstrating the presence of a variety of phenolic compounds, such as flavonoids and phenylpropanoids, among other classes of secondary metabolites. These products also have several biological activities, including antioxidant, healing, antinociceptive, anti‐inflammatory, antidepressant, antidyslipidemic, antiobesity, antifungal, antibacterial and prebiotic. Among the biological activities reported, the antioxidant activity was the most investigated. These data show that products derived from the stingless bee M. subnitida have promising bioactive compounds. This review provides useful information about the bioactivities and chemical profile of Melipona subnitida bee products, and a direction for future research, which should focus on understanding the mechanisms of action associated with the already elucidated pharmacological activities, as well as the bioactive properties of the main isolate’s constituents identified in the chemical composition of these products.

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Mycotoxins and Mycotoxin Producing Fungi in Pollen: Review

Kostić

Milinčić

Petrović

et al. 2019

Toxins

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Due to its divergent chemical composition and good nutritional properties, pollen is not only important as a potential food supplement but also as a good substrate for the development of different microorganisms. Among such microorganisms, toxigenic fungi are extremely dangerous as they can synthesize mycotoxins as a part of their metabolic pathways. Furthermore, favorable conditions that enable the synthesis of mycotoxins (adequate temperature, relative humidity, pH, and aw values) are found frequently during pollen collection and/or production process. Internationally, several different mycotoxins have been identified in pollen samples, with a noted predominance of aflatoxins, ochratoxins, fumonisins, zearalenone, deoxynivalenol, and T-2 toxin. Mycotoxins are, generally speaking, extremely harmful for humans and other mammals. Current EU legislation contains guidelines on the permissible content of this group of compounds, but without information pertaining to the content of mycotoxins in pollen. Currently only aflatoxins have been researched and discussed in the literature in regard to proposed limits. Therefore, the aim of this review is to give information about the presence of different mycotoxins in pollen samples collected all around the world, to propose possible aflatoxin contamination pathways, and to emphasize the importance of a regular mycotoxicological analysis of pollen. Furthermore, a suggestion is made regarding the legal regulation of pollen as a food supplement and the proposed tolerable limits for other mycotoxins.

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Caracterizações microbiológica e físico-química de pólens armazenados por abelhas sem ferrão

Cited by 3 publications

References 22 publications

Caracterización microbiológica de polen seco y congelado en Viracachá-Colombia

Caracterización microbiológica de polen seco y congelado en Viracachá-Colombia

Chemical Characterization and Biological Activities of Jandaíra Stingless Bee Products (Melipona subnitida, Ducke, 1911): A Brief Review

Mycotoxins and Mycotoxin Producing Fungi in Pollen: Review

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