Flavonoid profile of Robinia honeys produced in Croatia

Kenjerić, Daniela; Mandić, Milena L.; Primorac, Ljiljana; Bubalo, Dragan; Perl, Antonija

doi:10.1016/j.foodchem.2006.05.055

“…The individual values are from 0.50 to 18.99 mg/kg (Table 4). obtained mean results of physicochemical parameters (water, free acids, electrical conductivity, reducing sugars, sucrose, diastasis, HMF) are in conformity with the requirements of the regulations on the quality of unifloral honey 19 26,24,8,23,25 . The average values of electrical conductivity in the samples of this study were 0.12 to 0.22 mS/cm, which meets the general requirements of …”

Section: In Accordance With the European Union Council Directivesupporting

confidence: 80%

Physico-Chemical Profiles of Croatian Honey with an Overview of Its Consumption among Healthcare Students

Uršulin-Trstenjak

¹

,

Levanić

²

,

Grabar

³

et al. 2017

JAHS

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Consumers are becoming more aware of consumption of honey -the food with properties beneficial for health.In accordance with The European Union Council Directive Relating to Honey, as well as with the current legislation in the Republic of Croatia, the requirement for labeling the botanical origin of nectar honey is the presence of the dominant flower pollen as well as sensory and physicochemical analysis.The paper is a confirmation of botanical origin, the profile of physicochemical parameters with differences within the seasons/regions and the consumption of honey.This research covered 200 samples of black locust honey, collected from beekeepers during two seasons in five Croatian regions -20 samples from each region. A survey was conducted among 151 students to gather information on their honey consumption habits.The method used in the paper was melissopalynological and physicochemical analysis, ANOVA and a survey.All the tested samples contain the sufficient number of pollen grains >20% of Robinia pseudoacacia. The results of physicochemical quality parameters are as follows: mean water 15.99-18.03%; free acids 8.16-12.94 mEq/1000g; electrical conductivity 0.12-0.22 mS/cm; reducing sugars 66.94-70.88 g/100g; sucrose 0.10-2.90 g/100g; diastasis 9.07-15.14 DN; HMF 0.50-18.99 mg/ kg. Conducted data analysis of variance within physicochemical parameters regarding seasons and regions showed statistically significant difference among seasons p < 0.05 for water, while for diastasis activity it showed statistically significant difference among regions p < 0.05.Out of 141 (93%) respondents who consume honey, 63 (44%) of them consume it in quantities which are smaller than the Croatian average.

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“…Phenolic acids rise to 12.11 mg/kg, ferulic acid representing 29% of the total amount; levels of p-coumaric and vanillic acid have been also determined, but appearance is random. Acacetine, pinobanksine, pinocembrine, and chrysin are present in all samples (0.38-2.28 mg/kg), quantified levels being characteristic to the Romanian acacia honey, lower than the European acacia studied by Tomas-Barberan et al [30], but higher than the Croatian values reported by Kenjeric et al [52]. Apart from offering a valuable instrument to confirm the compositional formula and lack of adulteration, the authors recommend the polyphenolics profile as starting point for geographic authentication.…”

mentioning

confidence: 47%

Romanian Honey: Characterization and Classification

Isopescu¹,

Josceanu²,

Colta³

et al. 2017

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Making a significant contribution to the European honey trade, Romania has been lately engaged in an exhaustive process of ensuring product conformity. Both official bodies and research groups have taken part in the efforts to establish an efficient framework for characterizing and authenticating unifloral and polyfloral honey samples produced and commercialized. Innovative contributions of different Romanian scientists to the development of simple and/or effective investigation techniques are discussed, as well as the results gained in characterizing and classifying samples according to their botanical and/ or geographical origin. Information on the honey production and commercialization in the last 25 years is also provided, as well as a sketch of the Romanian consumer profile.

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“…It is evident that there is a statistically significant difference among seasons (p < 0.05) for water 0.026, while diastase 0.017 activity showed a statistically significant difference between regions (p < 0.05) ( Table 3). 25,27,23,8,24,26 . The sum of the glucose and fructose (i.e.…”

Section: In Accordance With the European Union Council Directivementioning

confidence: 99%

Physico-Chemical Profiles of Croatian Honey with an Overview of Its Consumption among Healthcare Students

Uršulin-Trstenjak¹,

Levanić²,

Grabar³

et al. 2017

JAHS

0

View full text Add to dashboard Cite

Consumers are becoming more aware of consumption of honey -the food with properties beneficial for health.In accordance with The European Union Council Directive Relating to Honey, as well as with the current legislation in the Republic of Croatia, the requirement for labeling the botanical origin of nectar honey is the presence of the dominant flower pollen as well as sensory and physicochemical analysis.The paper is a confirmation of botanical origin, the profile of physicochemical parameters with differences within the seasons/regions and the consumption of honey.This research covered 200 samples of black locust honey, collected from beekeepers during two seasons in five Croatian regions -20 samples from each region. A survey was conducted among 151 students to gather information on their honey consumption habits.The method used in the paper was melissopalynological and physicochemical analysis, ANOVA and a survey.All the tested samples contain the sufficient number of pollen grains >20% of Robinia pseudoacacia. The results of physicochemical quality parameters are as follows: mean water 15.99-18.03%; free acids 8.16-12.94 mEq/1000g; electrical conductivity 0.12-0.22 mS/cm; reducing sugars 66.94-70.88 g/100g; sucrose 0.10-2.90 g/100g; diastasis 9.07-15.14 DN; HMF 0.50-18.99 mg/ kg. Conducted data analysis of variance within physicochemical parameters regarding seasons and regions showed statistically significant difference among seasons p < 0.05 for water, while for diastasis activity it showed statistically significant difference among regions p < 0.05.Out of 141 (93%) respondents who consume honey, 63 (44%) of them consume it in quantities which are smaller than the Croatian average.

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Flavonoid profile of Robinia honeys produced in Croatia

Cited by 83 publications

References 31 publications

Physico-Chemical Profiles of Croatian Honey with an Overview of Its Consumption among Healthcare Students

Physico-Chemical Profiles of Croatian Honey with an Overview of Its Consumption among Healthcare Students

Romanian Honey: Characterization and Classification

Physico-Chemical Profiles of Croatian Honey with an Overview of Its Consumption among Healthcare Students

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