Study of preparations of bee pollen extracts, antioxidant and antibacterial activity
Open Access
- 1 December 2007
- journal article
- Published by FapUNIFESP (SciELO) in Ciência E Agrotecnologia
- Vol. 31 (6), 1818-1825
- https://doi.org/10.1590/s1413-70542007000600032
Abstract
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.Keywords
This publication has 18 references indexed in Scilit:
- Chemical composition and botanical evaluation of dried bee pollen pelletsJournal of Food Composition and Analysis, 2005
- Determination of the antioxidant capacity of different food natural products with a new developed flow injection spectrofluorimetry detecting hydroxyl radicalsTalanta, 2005
- RP-HPLC Analysis of the Phenolic Compounds of Plant Extracts. Investigation of Their Antioxidant Capacity and Antimicrobial ActivityJournal of Agricultural and Food Chemistry, 2005
- Phenolic compounds and total antioxidant potential of commercial winesFood Chemistry, 2003
- Alkylperoxyl Radical Scavenging Activity of Red Leaf Lettuce (Lactuca sativa L.) PhenolicsJournal of Agricultural and Food Chemistry, 2003
- Antioxidant Properties and Composition of Aqueous Extracts from Mentha Species, Hybrids, Varieties, and CultivarsJournal of Agricultural and Food Chemistry, 2003
- Note. Pollen Analysis and Antibacterial Activity of Spanish HoneysFood Science and Technology International, 2001
- Nutrient Composition and Microbiological Quality of Honeybee-Collected Pollen in SpainJournal of Agricultural and Food Chemistry, 1997
- Structure-antioxidant activity relationships of flavonoids and phenolic acidsFree Radical Biology & Medicine, 1996
- Natural antioxidants in grapes and winesJournal of Agricultural and Food Chemistry, 1994