Groups of Honey - Physicochemical Properties and Heavy Metals

The aim of this paper was to compare the microbiological and sensory quality of Polish and Thailand multifloral honeys. The honeys selected for testing were classified into the multifloral honey group on the basis of a pollen analysis. The microbiological analyses of multifloral honey samples confirmed a good microbiological quality of the honey samples tested. No presence of pathogenic bacteria of the species Salmonella has been demonstrated. The total number of aerobic mesophilic microorganisms and the number of mesophilic bacteria of the species Bacillus were less than the permissible microbiological limits for bee products. A significant excess of yeasts and moulds was found in one Thailand honey sample, which produced undesirable sensory factors as a result of honey fermentation. The tests performed revealed that lime and multifloral honeys were the varieties most preferred by consumers and that most consumers presented a neutral attitude towards imported honeys. A consumer sensory test showed differences in the quality of the honey samples tested. Three samples of domestic multifloral honeys and one sample of imported honey were assessed as the most attractive. Two Thailand honey samples were characterized by a significantly lower sensory quality than the other samples tested in the study. The method of sensory profiling applied in this study made it possible to be obtained precise information on the reasons for consumers’ preferences identified during the hedonic test. The results for the most unattractive samples obtained by this method were confirmed by the results of microbiological and physicochemical analyses.

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“…The pH value of the honeys ranged from 3.65 to 4.53. These values were similar to those obtained by other authors (2,6,14,26,31,42,43,48,51,52).…”

Section: Resultssupporting

confidence: 82%

Comparison of selected quality characteristics of domestic and Thailand multifloral honeys

Madras-Majewska¹,

Rosiak²,

Jaworska³

et al. 2016

Medycyna Weterynaryjna

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“…The moisture content varied from 15.26 % in the honeydew honey from west region to 17.65 % in the honeydew honey from Slovakian west region (Table II) Similarly results were found in the blossom honey (15.9 ± 1.2 %), blends honey (15.9 ± 1.2 %) and ho neydew honey (15.6 ± 1.7 %) in the Czech Republic (Če-lechovská and Vorlová, 2001). The moisture content in Slovak honey varied from 16.00 to 19.80 % (Kačá-niová et al, 2009).…”

Section: Resultssupporting

confidence: 56%

Physicochemical characterization of natural honeys from different regions in Slovakia

Sudzina¹,

Melich²,

Kňazovická³

et al. 2014

Acta Univ. Agric. Silvic. Mendelianae Brun.

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SUDZINA, M., MELICH, M., KŇAZOVICKÁ, V., FELŠÖCIOVÁ, S., KOCIUBINSKI, G., ANDREJI, J., PAVLIČOVÁ, S., KRÁČMAR, S.: Physicochemical characterization of natural honeys from diff erent regions in Slovakia. Acta univ. agric. et silvic. Mendel. Brun., 2009, LVII, No. 2, pp. 125-134 This study is intended to determine the physicochemical characteristics of Slovakian honeys, and compare them with specifi cations described in the Codex Alimentarius Standard, the European Honey directive, the Slovak Codex Alimentarius and Slovak standard No. 1/2006. In addition, we tried to fi nd out correlations between individual constituents of honeys. Physicochemical characterization was carried out following the harmonized methods dictated by the International Honey Commission IHC. Honey samples (n=50) were collected from three honey types (blossom, blends, honeydew), and from the three main Slovakian geographical regions (named 'east', 'middle' and 'west'). The physi co che mi cal evaluation included moisture, reduced sugars, proline, hydroxymethylfurfural (HMF), conductivity, diastase and invertase activity, pH and water activity, following the techniques proposed by the European Honey Commission (EHC). The moisture content in the honey varied from 15.26 to 17.65 %, HMF levels ranged from 21.83 to 63.00 mg . kg , the pH value varied from 4.06 to 4.80 and the water activity content varied from 0.55 to 0.57. Signifi cant diff erences (P ≤ 0.05) were found between HMF and fructose, glucose and saccharose and conductivity and pH, signifi cant differences (P ≤ 0.01) between fructose and glucose and signifi cant diff erences (P ≤ 0.001) were found between HMF and conductivity. Between blossom honey and honeydew honey were found statistical signifi cant diff erences in HMF (P ≤ 0.05) and conductivity between honeydew honey and blossom honey (P ≤ 0.001). Among regions were determined statistical diff erences between HMF and invertase (P ≤ 0.05) and conductivity (P ≤ 0.01).

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“…Data on the PAHs content in honey are very rare, nevertheless, some authors reported high concentrations of PAHs in honey (Dobrinas et al 2008). Trace concentration of metals in honey and their high variability are dependent very strongly on the botanical and geographical origin, and less on the climatic and seasonal criteria (Čelechovská and Vorlová 2001). Remarkably elevated values of trace elements in honey were reported in samples from industrial and otherwise polluted areas (Bogdanov et al 2007).…”

Section: Persistent Organic Pollutants Toxic Elements Hplc Atomic mentioning

confidence: 99%

Polycyclic aromatic hydrocarbons and risk elements in honey from the South Moravian region (Czech Republic)

et al. 2012

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The aim of this study was to determine the actual content of some exogenous contaminants in the honey from the South Moravian region of the Czech Republic. The content of polycyclic aromatic hydrocarbons (PAHs) and risk elements (Mercury -Hg, Cadmium -Cd, Lead -Pb, and Arsenic -As) in multifloral blossom and honey dew samples of honey were determined by high-performance liquid chromatography and atomic absorption spectroscopy methods. The samples were collected form beekeepers and from retail stores located in South Moravia in the Czech Republic. Concentrations of individual PAHs in honey samples ranged between 0.02 μg·kg . Acceptable limits for trace elements in infant formula were met. Results of this study complete present knowledge of the contaminant content in Czech honey and confirmed high quality and safety of honey from the South Moravian region. Persistent organic pollutants, toxic elements, HPLC, atomic absorption spectroscopy

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Groups of Honey - Physicochemical Properties and Heavy Metals

Cited by 47 publications

References 10 publications

Comparison of selected quality characteristics of domestic and Thailand multifloral honeys

Comparison of selected quality characteristics of domestic and Thailand multifloral honeys

Physicochemical characterization of natural honeys from different regions in Slovakia

Polycyclic aromatic hydrocarbons and risk elements in honey from the South Moravian region (Czech Republic)

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