Evaluation of bioactive properties of pollen extracts as functional dietary food supplement

Kroyer, G.; Hegedűs, Nikoletta

doi:10.1016/s1466-8564(01)00039-x

Cited by 184 publications

(138 citation statements)

References 7 publications

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“…These results showed that the extraction conditions (solvent concentrations) influenced the extraction of phenolic compounds of Parana pollen (Figure 1). Kroyer & Hegedus (2001) achieved 8.2 mg/g of polyphenolics substances in natural bee-collected flower pollen, which could be significantly increased in the extracts (21.4-24.6 mg/g) with the highest content of total polyphenols in the ethanol extract. Comparing Figures 1 and 2, it can be observed that the content of total phenolic compounds of PEE 60, 70 and 80 % from Parana pollen (10.8, 10.9 and 10.6 mg/g) was higher than the one from Alagoas (6.2, 8,1 and 6.3 mg/g,).…”

Section: Total Phenolic Content Of Pollen Ethanolic Extracts (Pee)mentioning

confidence: 89%

Study of preparations of bee pollen extracts, antioxidant and antibacterial activity

et al. 2007

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The aim of this study was to determine the antioxidant activity, phenolic content and antibacterial activity of pollen extracts obtained with different concentrations of ethanol. Each extraction condition (ethanol solutions from 40 to 90%) had a different effect in the phenolic compounds content. Although, the pollen extract obtained at 60, 70 and 80% of ethanol showed relatively higher levels of phenolic compounds (>10 mg/g) and did not present statistical significant difference between the extraction conditions. The amount of total phenolics ranged from 3.6 to 8.1 and 6.6 to 10.9 mg GAE/g for Alagoas state and Parana state pollen, respectively. The higher value for antioxidant activity index was 83.30% for the pollen from Alagoas state and 81.15 % for Parana state pollen. The highest degree of antioxidant activity was found in the extraction at 60% of ethanol solution for Parana state pollen, which also showed the highest concentration of polyphenol compounds. Staphylococcus aureus was inhibited by the ethanolic extract of Alagoas state pollen in all the concentrations of solvent, except the ethanolic extract of pollen at 90%. The extract at 60% of ethanol solution (Parana sample) inhibited Bacillus subtilis, Pseudomonas aeruginosa and Klebsiella sp.Index terms: Pollen, antioxidant, antibacterial activity. RESUMOObjetivou-se, neste estudo determinar compostos fenólicos, a atividade antioxidante a antibacteriana dos extratos etanólicos de pólen, obtidos com diferentes concentrações de etanol. As diferentes condições de extração (etanol de 40 a 90%) apresentaram diferentes efeitos no conteúdo dos compostos fenólicos extraídos. Os extratos de pólen obtidos com etanol a 60, 70 e 80% apresentaram maiores níveis de compostos fenólicos (>10 mg/g) e não apresentaram diferenças estatísticas entre essas condições de extração. A quantidade de compostos fenólicos nos extratos de pólen variou de 3.6 a 8.1 e 6.6 a 11 mg de equivalente em ácido gálico por g de pólen (GAE), para os estados de Alagoas e Paraná, respectivamente. Os maiores índices de atividade antioxidante para o pólen do estado de Alagoas foi de 83.30% e 81.15 % para o pólen do estado do Paraná. O pólen do estado do Paraná extraído com etanol a 60%, apresentou o maior índice de atividade antioxidante e também a maior concentração de compostos fenólicos. A bactéria Staphylococcus aureus foi inibida pelo extrato etanólico do pólen de Alagoas, em todas as concentrações, exceto no extrato etanólico a 90%. O extrato etanólico a 60%, no pólen do Paraná, inibiu Bacillus subtilis, Pseudomonas aeruginosa e Klebsiella sp.Termos para indexação: Pólen apícola, atividade antioxidante e antibacteriana.

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Section: Total Phenolic Content Of Pollen Ethanolic Extracts (Pee)mentioning

confidence: 89%

Study of preparations of bee pollen extracts, antioxidant and antibacterial activity

et al. 2007

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“…After some time of storage, the stingless bees regurgitate glandular substances into a pollen pot, for fermentation and for their own consumption (KERR et al, 1996). Pollen has also been occasionally consumed by humans, as a supplement food, in industrialized capsules (KROYER & HEGEDUS, 2001), either added to honey or pure and dehydrated.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical characteristics of pollen collected by Amazonian stingless bees

2016

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The purpose of this study was to determine the physicochemical characteristics of pollen collected by the Amazonian stingless bees Melipona seminigra and Melipona interrupta, in order to verify whether their characteristics meet the physicochemical requirements established by the Brazilian Technical Regulation for Identity and Quality of Bee Pollen.Physicochemical analyses were performed through official analytical methods. Results of pollen analyses collected by M. seminigra and M. interrupta were respectively as follows: moisture: 53.39 and 37.12%; protein: 37.63 and 24.00%; lipids: 10.81 and 6.47%; ash: 4.03 and 2.74%; crude fiber: 9.30 and 13.65%; carbohydrates: 25.66 and 44.27%; energy: 350.47 and 331.33kcal%; pH: 3.70 and 3.34; total solids: 46.60 and 62.87%, and water activity: 0.91 and 0.85 foram, respectivamente: umidade: 53,39 e 37,12%; proteínas: 37,63 e 24,00%; lipídeos: 10,81 e 6,47%; cinzas: 4,03 e 2,74%; fibra bruta: 9,30 e 13,65%; carboidratos: 25,66 e 44,27%; energia: 350,47 e 331,33kcal%; pH: 3,70 e 3,34; sólidos totais: 46,60

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“…Bee pollen has promising therapeutic and nutritional value with higher content of essential amino acids, minerals, and the sugar mannitol (Nogueira et al, 2012; da Silva et al, 2014). It has high antioxidant and free radical scavenging potential due to polyphenol substances (Kroyer and Hegedus, 2001; AlmarazAbarca et al, 2004). It has the antimicrobial activity against pathogenic fungi and gram positive and negative bacteria (Melliou and Chinou, 2011).…”

Section: Introductionmentioning

confidence: 99%

EFFECT OF BEE POLLEN AND PROBIOTICS ON GROWTH PERFORMANCE, ORGANS, AND THIGH MEAT pH OF BROILER COBB 500

Adhikari¹,

Adhikari²,

Dhungana³

et al. 2017

J microb biotech food sci

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Evaluation of bioactive properties of pollen extracts as functional dietary food supplement

Cited by 184 publications

References 7 publications

Study of preparations of bee pollen extracts, antioxidant and antibacterial activity

Study of preparations of bee pollen extracts, antioxidant and antibacterial activity

Physicochemical characteristics of pollen collected by Amazonian stingless bees

EFFECT OF BEE POLLEN AND PROBIOTICS ON GROWTH PERFORMANCE, ORGANS, AND THIGH MEAT pH OF BROILER COBB 500

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