Influence of the Collection Season on Production, Size, and Chemical Composition of Bee Pollen Produced by Apis Mellifera L.

Abstract

a b s t r a c t the aim of our study was to investigate how the collection period affects and influences the production, chemical composition, and size of bee pollen loads (0.5, 1.0, 2.0, greater than 2.0 mm). the results showed there was a predominance of pollen loads with a diameter greater than 2.0 mm in all the production seasons. for all the seasons, there were no differences in protein content between the particle sizes. But when comparing 0.5 mm during the different periods, there were significant differences; the highest value was found during the winter (24.39 ± 3.7%). as far as lipids and crude fiber are concerned, we obtained differences between the same granulometry sizes for the spring and summer seasons. as for ashes, the results showed differences between different particle sizes for the summer and autumn seasons. our results have shown that regardless of pollen particle size, its quality was not altered, suggesting that smaller loads can be commercially used by containing nutritional quality or else be used by beekeepers as a supplement during periods of food scarcity.

Temporal variation in production and nutritional value of pollen used in the diet of Apis mellifera L. in a seasonal semideciduous forest

“…Floristic diversity, nutritional quality, reduced exposure to pesticides coupled with adequate management are factors that can contribute to colony productivity and performance (Colwell et al, 2017). Even so, the percentages based on the dry matter of CP, FAT, CT and MM are within the values found in the national and international literature (Yang et al, 2013;Negrão et al, 2014;Sattle et al, 2015).…”

“…An important plant for the commercial production of bee pollen, as was certified in samples from Rio Grande do Norte, Bahia, Sergipe and São Paulo states (Melo et al 2018). Fluctuations in pollen production are common, due to the influence of many productivity factors (Negrão et al, 2014), including the flowering of one or more species of abundant plants in the site, weather conditions, colony size, of brood area size and queen age (Dimou & Thrasyvoulou, 2007;Rebolledo et al, 2011;Avni et al, 2014).…”

Analyzing the Antioxidant Activity and Fatty Acid Composition of Monofloral Mullein (Verbascum sp.) Pollen Oil obtained via Various Extraction Techniques

“…Soxhlet extraction was performed by modifying the methods of Negrão et al [54] . and Gabriele et al [55] .…”

“…Soxhlet extraction was performed by modifying the methods of Negrão et al [54] and Gabriele et al [55] 50 g of the powdered MBP was weighed and placed in the soxhlet cartridge. Then 750 mL of solvent was placed in the heater mantle of the soxhlet extractor.…”

Variação temporal na dieta, valor nutricional e produção do pólen coletado por Apis mellifera L. (Hymenoptera: Apidae) em área de caatinga

“…Apesar da grande variação no valor nutricional do pólen apícola obtido em uma área de Caatinga no município de Serra Talhada-PE, os percentuais estão dentro de valores encontrados no Brasil e em outros países (Yang et al,2013;Negrão et al, 2014;Sattle et al, 2015;Nascimento et al, 2019), bem como, estão de acordo com as exigências estabelecidas pelo regulamento técnico brasileiro do Ministério da Agricultura Pecuária e Abastecimento-MAPA, através da Instrução Normativa nº 3, de 19 de janeiro de 2001, que estabelece os Research, Society and Development, v. 9, n. 9, e563997529, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v9i9.7529 seguintes valores para a comercialização de pólen no Brasil: proteína bruta mínima de 8% e extrato etéreo mínimo de 1,8% (MAPA, 2001).…”