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Procedia Food Science
Article . 2011 . Peer-reviewed
License: CC BY NC ND
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Procedia Food Science
Article
License: CC BY NC ND
Data sources: UnpayWall
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Procedia Food Science
Article . 2011
License: CC BY NC ND
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Physicochemical and melissopalynological characterization of Estonian summer honeys

Authors: Kirs, Evelin; Pall, Raili; Martverk, Kaie; Laos, Katrin;

Physicochemical and melissopalynological characterization of Estonian summer honeys

Abstract

AbstractThe samples of 14 honeys, retained from Estonian beekeepers, were analyzed for parameters such as pH, moisture content, free acidity, electrical conductivity, diastase activity, hydroxymethylfurfural (HMF) content and mineral content, including sodium (Na), potassium (K), magnesium (Mg) and calcium (Ca). Fructose, glucose and disaccharide content were also identified and fructose/glucose ratio was calculated. In addition melissopalynological analyses were carried out for characterization of honeys. The mean values of analyzed honeys were: pH 3.8; moisture 17.3%; free acidity 20.4 mmol/kg; electrical conductivity 0.2 mS/cm; diastase activity 23.1 DN and HMF was below 3.8mg/kg. Within the mineral content, potassium was quantitatively the most important mineral in the range of 125.79 to 1381.53mg/kg followed by calcium of 20.37-63.65mg/kg, magnesium 5.53-25.49mg/kg and sodium 4.77- 19.44mg/kg. The predominant sugar in honey samples was fructose having the mean value of 35.91g/100g followed by glucose 35.00g/100g. The disaccharide average content was 6.00g/100g. The melissopalynological analyzes showed that the most dominant pollens in honey samples were cruciferous (Cruciferae)-mainly rape (Brassica napus); rosacean (Rosaceae)-mainly raspberry (Rubus idaeus); white clover (Trifolium repens); sweet clover (Melilotus officinalis) and willow (Salix). The results of honey pollen profile analysis and calculated fructose/glucose ratios (0.89-1.17) both indicated to flower honeys. All of the analyzed honeys were found to meet European Legislation (EC Directive 2001/110) for all parameters.

Keywords

mineral content, melissopalynological analysis, honey, physicochemical properties

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
29
Top 10%
Top 10%
Average
hybrid