Advanced Characterization of Monofloral Honeys from Romania

Honey’s authenticity is a major concern for producers and consumers, and this prompts research into reliable methods to determine the source of honey (botanical and geographical). This study aimed to find the botanical origin of seven samples of monofloral honey (acacia, thyme, tilia, rape, raspberr...

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Main Authors: Daniela Pauliuc, Florina Dranca, Sorina Ropciuc, Mircea Oroian
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Agriculture
Subjects:
Online Access:https://www.mdpi.com/2077-0472/12/4/526
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author Daniela Pauliuc
Florina Dranca
Sorina Ropciuc
Mircea Oroian
author_facet Daniela Pauliuc
Florina Dranca
Sorina Ropciuc
Mircea Oroian
author_sort Daniela Pauliuc
collection DOAJ
description Honey’s authenticity is a major concern for producers and consumers, and this prompts research into reliable methods to determine the source of honey (botanical and geographical). This study aimed to find the botanical origin of seven samples of monofloral honey (acacia, thyme, tilia, rape, raspberry, mint and sunflower) based on pollen analysis and identification of the physicochemical characteristics of these types of honey. For these types of honey, the following parameters were determined: color, electrical conductivity, free acidity, moisture content, pH, hydroxymethylfurfural content and sugar content. Alongside pollen analysis, these methods succeeded in classifying the analyzed samples as monofloral honey. Non-destructive methods of analysis such as Fourier transform infrared spectroscopy, the determination of the rheological behavior of honey in the negative domain and the determination of the thermal behavior were also employed to characterize the honey samples. The best differentiation between samples was achieved in the spectral region between 950 and 750 cm<sup>−1</sup>, which is of interest for carbohydrate analysis in IR spectroscopy. In the negative interval, the viscous and elastic modules intersected at different temperatures, these temperatures being influenced both by the moisture of the analyzed samples and the botanical origin.
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spelling doaj.art-6f184f03c06e426984c37d373f6122f32023-12-01T00:24:38ZengMDPI AGAgriculture2077-04722022-04-0112452610.3390/agriculture12040526Advanced Characterization of Monofloral Honeys from RomaniaDaniela Pauliuc0Florina Dranca1Sorina Ropciuc2Mircea Oroian3Faculty of Food Engineering, Stefan cel Mare University of Suceava, 13 Universitatii Street, 720229 Suceava, RomaniaFaculty of Food Engineering, Stefan cel Mare University of Suceava, 13 Universitatii Street, 720229 Suceava, RomaniaFaculty of Food Engineering, Stefan cel Mare University of Suceava, 13 Universitatii Street, 720229 Suceava, RomaniaFaculty of Food Engineering, Stefan cel Mare University of Suceava, 13 Universitatii Street, 720229 Suceava, RomaniaHoney’s authenticity is a major concern for producers and consumers, and this prompts research into reliable methods to determine the source of honey (botanical and geographical). This study aimed to find the botanical origin of seven samples of monofloral honey (acacia, thyme, tilia, rape, raspberry, mint and sunflower) based on pollen analysis and identification of the physicochemical characteristics of these types of honey. For these types of honey, the following parameters were determined: color, electrical conductivity, free acidity, moisture content, pH, hydroxymethylfurfural content and sugar content. Alongside pollen analysis, these methods succeeded in classifying the analyzed samples as monofloral honey. Non-destructive methods of analysis such as Fourier transform infrared spectroscopy, the determination of the rheological behavior of honey in the negative domain and the determination of the thermal behavior were also employed to characterize the honey samples. The best differentiation between samples was achieved in the spectral region between 950 and 750 cm<sup>−1</sup>, which is of interest for carbohydrate analysis in IR spectroscopy. In the negative interval, the viscous and elastic modules intersected at different temperatures, these temperatures being influenced both by the moisture of the analyzed samples and the botanical origin.https://www.mdpi.com/2077-0472/12/4/526honeyphysicochemical parametersrheological propertiesdifferential scanning calorimetry
spellingShingle Daniela Pauliuc
Florina Dranca
Sorina Ropciuc
Mircea Oroian
Advanced Characterization of Monofloral Honeys from Romania
Agriculture
honey
physicochemical parameters
rheological properties
differential scanning calorimetry
title Advanced Characterization of Monofloral Honeys from Romania
title_full Advanced Characterization of Monofloral Honeys from Romania
title_fullStr Advanced Characterization of Monofloral Honeys from Romania
title_full_unstemmed Advanced Characterization of Monofloral Honeys from Romania
title_short Advanced Characterization of Monofloral Honeys from Romania
title_sort advanced characterization of monofloral honeys from romania
topic honey
physicochemical parameters
rheological properties
differential scanning calorimetry
url https://www.mdpi.com/2077-0472/12/4/526
work_keys_str_mv AT danielapauliuc advancedcharacterizationofmonofloralhoneysfromromania
AT florinadranca advancedcharacterizationofmonofloralhoneysfromromania
AT sorinaropciuc advancedcharacterizationofmonofloralhoneysfromromania
AT mirceaoroian advancedcharacterizationofmonofloralhoneysfromromania