A New Approach for Determination of the Botanical Origin of Monofloral Bee Honey, Combining Mineral Content, Physicochemical Parameters, and Self-Organizing Maps

A new approach for the botanical origin determination of monofloral bee honey is developed. The methodology combines mineral content and physicochemical parameters determination with intelligent statistics such as self-organizing maps (SOMs). A total of 62 monofloral bee honey samples were analysed,...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2021-11, Vol.26 (23), p.7219
Main Authors: Voyslavov, Tsvetomil, Mladenova, Elisaveta, Balkanska, Ralitsa
Format: Article
Language:English
Subjects:
Animals
Authenticity
Beekeeping
Bees
botanical origin determination
Brassica napus
Cesium
Chemical elements
Chemometrics
Chromium
Cluster analysis
Dietary minerals
Electric Conductivity
Electrical conductivity
Electrical resistivity
Flowers & plants
Helianthus
Honey
Honey - analysis
Hydrogen-Ion Concentration
Hydroxymethylfurfural
Invertase
Manganese
melissopalynological analysis
Minerals - analysis
Moisture content
Optical rotation
physicochemical parameters
Proline
Rapeseed
Self organizing maps
Sodium
Statistical analysis
Statistical methods
Sunflowers
Trace Elements - analysis
Variables
Water content
Zinc
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Summary:A new approach for the botanical origin determination of monofloral bee honey is developed. The methodology combines mineral content and physicochemical parameters determination with intelligent statistics such as self-organizing maps (SOMs). A total of 62 monofloral bee honey samples were analysed, including 31 linden, 14 rapeseed, 13 sunflower, and 4 acacia. All of them were harvested in 2018 and 2019 from trusted beekeepers, after confirming their botanical origin, using melissopalynological analysis. Nine physicochemical parameters were determined, including colour, water content, pH, electrical conductivity, hydroxymethylfurfural content, diastase activity, specific optical rotation, invertase activity, and proline. The content of thirty chemical elements (Ag, Al, As, B, Ba, Bi, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, P, Pb, Rb, S, Se, Sr, Te, V, and Zn) was measured using ICP-OES, ICP-MS, and FAAS as instrumental techniques. The visualisation of the SOMs shows an excellent separation of honey samples in five well-defined clusters-linden, rapeseed, acacia, sunflower, and polyfloral honey-using the following set of 16 descriptors: diastase activity, hydroxymethylfurfural content, invertase activity, pH, specific optical rotation, water content, Al, B, Cr, Cs, K, Na, Ni, Rb, V, and Zn.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules26237219