Honey from Autonomous Province of Vojvodina
2018
Sakač, Marijana (https://orcid.org/0000-0003-2093-2238) | Jovanov, Pavle (https://orcid.org/0000-0002-6225-2655) | Marić, Aleksandar (https://orcid.org/0000-0001-8889-6267) | Pezo, Lato (https://orcid.org/0000-0002-0704-3084) | Kevrešan, Žarko | Ilić, Nebojša (https://orcid.org/0000-0002-4187-1916) | Novaković, Aleksandra
Honey is a supersaturated aqueous solution of different carbohydrates, in which glucose and fructose represent the major honey sugars (85–95%). It also contains other components, such as proteins, enzymes, amino and organic acids, vitamins, polyphenols, minerals and other phytochemicals. The physicochemical parameters of honey depend on the type of nectar (botanical origin), geographical origin (climate conditions and soil composition) and handling (storage and transport). In addition, adulteration of honey can be determined using the quality parameters. The Republic of Serbia has great honey annual production of 4.000–6.000 tons and an exceptional average annual export growth rate in quantity (32.8%) in the period 2006–2015. According to the Statistical Office of the Republic of Serbia the honey annual production was over 7000 t in 2017 in which the Autonomous Province of Vojvodina participated with more than 2000 t (nearly 30%). Therefore, the aim of this study was to evaluate the physicochemical parameters of honey samples collected from Vojvodina. Forty-five honey samples of three honey types (acacia, sunflower and meadow) from 22 different geographical origins, produced in 2016, were examined regarding following physicochemical parameters: moisture, acidity, pH, ash, electrical conductivity, glucose, fructose, hydroxymethylfurfural (HMF), colour (CIE L*a*b*) and mineral content. All investigated honey samples met the examined quality criteria except 4 samples in the case of moisture content and one for HMF content meaning that 11% of all samples were not in accordance with EU regulative. Principal component analysis (PCA) was used for assessing the effects of three honey types on all investigated physicochemical parameters. According to PCA, acacia honey samples can be clearly isolated to form a cluster, while, regarding other honey types, PCA can offer the possibility to distinguish sunflower and meadow honey samples regarding examined physicochemical parameters and mineral content.
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