Pollen composition and standardisation of analytical methods

Campos, Maria Graça; Bogdanov, Stefan; Almeida-Muradian, Lígia Bicudo de; Szczesna, T.; Mancebo, Yanina; Frigerio, Christian; Ferreira, Francisco H. G.

doi:10.3896/ibra.1.47.2.12

Cited by 169 publications

(279 citation statements)

References 9 publications

(9 reference statements)

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“…The total nitrogen content of pollen samples was determined by the conventional Kjeldahl method. To determine total crude protein, the nitrogen values were multiplied by a conversion factor of 5.6 (Rabie et al, 1983;Campos et al, 2008). Pollen was moulded into a paste with honey to make pollen lumps.…”

Section: Methodsmentioning

confidence: 99%

The Effects of Pollen Protein Content on Colony Development of the Bumblebee, Bombus Terrestris L.

Baloglu

Gürel

2015

Journal of Apicultural Science

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A b s t r a c t The effects of pollen protein content on the colony development of Bombus terrestris were investigated by feeding queens and queenright colonies with four different pollen diets. We used three kinds of commercially available pure pollen (Cistus spp. 11.9%, Papaver somniferum 21.4%, and Sinapis arvensis 21.8% crude protein). We also used a mixture which was made up of equal weights of these pure pollens (18.4 % crude protein). All queens and colonies were fed with sugar syrup and pollen diets ad libitum (28 ± 1 o C, 65 ± 5% RH). Until there were 50 workers reached, colonies fed with the Cistus pollen diet (167.4 ± 28.9 g) consumed signifi cantly more pollen than colonies fed with the Papaver pollen diet (140.7 ± 15.7 g), the mixed pollen diet (136.2 ± 20.1 g) or colonies fed with the Sinapis pollen diet (132.4 ± 22.6 g). The date when there were 50 workers reached was approximately one week later in the colonies fed with the Cistus, and colonies fed with the Papaver diet than in the colonies fed with the Sinapis diet, and for colonies fed with the mixed pollen diets. Considering 8 tested criteria, the best performances were observed using the Sinapis, and using the mixed pollen diets. The lowest performances were observed using the Cistus pollen diet. Results showed that pollen sources play an important role in commercial bumblebee rearing. Results also showed that the polyfl oral pollen diets are more suitable for mass rearing of bumblebees than the unifl oral pollen diets.

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Section: Methodsmentioning

confidence: 99%

The Effects of Pollen Protein Content on Colony Development of the Bumblebee, Bombus Terrestris L.

Baloglu

Gürel

2015

Journal of Apicultural Science

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“…Honeybee-collected pollen provides a rich source of easily digestible protein (Crailsheim et al, 1992;Campos et al, 1996;Serra Bonvehi and Escola Jorda, 1997;Szczęsna, 2006a;b). In addition to proteins, pollen also contains carbohydrates, fats and minerals (Orzáez Villanueva et al, 2002;Szczęsna et al, 2002;Almeida-Muradian et al, 2005;Human and Nicolson, 2006;Szczęsna, 2006a;2007;Campos et al, 2008;Carpes et al, 2009;Martins et al, 2011;Morgano et al, 2012). The chemical composition of bee-pollen showed an average of 7.40% moisture, 20.00% protein, 6.00% lipids, and 2.20% ash (Almeida-Muradian et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition and Amounts of Mineral Elements in Honeybee-Collected Pollen in Relation to Botanical Origin

Taha

2015

Journal of Apicultural Science

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A b s t r a c t This study was conducted at the apiary of the Agricultural and Veterinary Training and Research Station, King Faisal University, Al-Ahsa, Saudi Arabia. The purpose was to study the relationship between the botanical origin and chemical composition of bee-collected pollen. The amount of mineral elements present in bee-collected pollen was also studied. The composition of pollen loads showed the maximum contents of dry matter, ash, glucose, fructose, magnesium (Mg), phosphorus (P), and manganese (Mn) for the date palm; the maximum contents of protein, calcium (Ca), and zinc (Zn) for alfalfa; the maximum contents of fiber, and copper (Cu) for the sunflower; the maximum contents of the lipids and iron (Fe) for summer squash; and the maximum contents of sodium (Na), and potassium (K) for rape. Calcium was found to be correlated in a significantly (p<0.01) positive way with K, Na, Mg, P, Mn, and Zn. Copper, though, was correlated in a significantly (p<0.01) negative way with Ca, Mg, P, Mn, and Zn. The high levels of protein, ash, glucose, and fructose, and low lipid content found in bee-pollen from the date palm and from alfalfa, mean that pollen from the date palm and from alfalfa make an excellent food supplement. It was concluded, that the chemical composition of beecollected pollen can be correlated with the plant species from which pollen was collected.

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“…Para muitos insetos e especialmente para as abelhas, o pólen é a principal fonte de alimento, essencial para o normal crescimento e desenvolvimento de todos os indivíduos de uma colônia de abelhas e para a reprodução de colônias (KRELL, 1996;CAMPOS et al, 2008).…”

Section: Introductionunclassified

Caracterização físico-química do pólen polifloral coletado por abelhas africanizadas (Apis mellifera L.) na região do Cariri cearense

et al. 2015

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Physical-chemical characterization of polifloral pollen collected by Africanized bees (Apis mellifera L.) in the region of Cariri Ceará ABSTRACTApiculture pollen may present variations in its chemical composition, mainly due to abiotic factors, which may directly influence its nutritional quality. In this context, the objective of the present study was to characterize the polifloral pollen collected by Africanized bees (Apis mellifera L.) in the region of the Cariri region of Ceará through physicochemical analyzes during a one-year period. Samples of bee pollen were analyzed for the parameters: protein, ash, moisture, lipids and total sugars. Mean values were 26.43% protein, 2.56% for ash, 13.72% for moisture, 7.57% for lipids, and 29.14% for total sugars. All the analyzed parameters met the standards of the Technical Regulation for Identification and Quality of Beekeeping pollen established by the Ministry of Agriculture. The results showed that there was a great oscillation in the data during the months studied and could be related to local environmental factors or to the storage in which the pollen samples were submitted. However, it is possible to conclude that the bee pollen studied can be considered nutrient-rich foods. With considerable levels of proteins, lipids and sugars.

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Pollen composition and standardisation of analytical methods

Cited by 169 publications

References 9 publications

The Effects of Pollen Protein Content on Colony Development of the Bumblebee, Bombus Terrestris L.

The Effects of Pollen Protein Content on Colony Development of the Bumblebee, Bombus Terrestris L.

Chemical Composition and Amounts of Mineral Elements in Honeybee-Collected Pollen in Relation to Botanical Origin

Caracterização físico-química do pólen polifloral coletado por abelhas africanizadas (Apis mellifera L.) na região do Cariri cearense

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