RESEARCH CONCERNING CARBOHYDRATE COMPOSITION AND ELECTRICAL CONDUCTIVITY OF DIFFERENT MONOFLORAL HONEYS FROM ROMANIA
RESEARCH CONCERNING CARBOHYDRATE COMPOSITION AND ELECTRICAL CONDUCTIVITY O DIFFERENT MONOFLORAL HONEYS FROM ROMANIA

Summary/Abstract: The main purpose of this study was to obtain a complete characterization for various types of Romanian honey considering their carbohydrate composition and electrical conductivity, in order to have a full profile of their qualities and to ensure their authenticity for the customer. A number of 100 samples of honey were collected in 2009 during flowering season and were analyzed by gas chromatography. For identification and quantification in all collected samples, we took as objective the following chemical compounds: Fructose, glucose, sucrose, maltose, isomaltose, turanose, trehalose, palatinose, cellobiose, raffinose and panose. Glucose was the one to be predominant in 86 of the 100 samples. The mean values of fructose and glucose ranged from 342.93 to 369.12 mg/g and from 407.52 to 451.15 mg/g honey, respectively. The amount of sucrose detected varied from 2.25 to 3.08 mg/g. As for authenticity, the ratios of fructose/glucose, maltose/isomaltose, maltose/ turanose and sucrose/turanose were calculated and took into account for establishing this status. In addition to all those, another parameter was measured and found to be variable, electrical conductivity, from 0.485 to 0.851 mS/cm, and in this case, the lowest electrical conductivity was obtained for rape honey. All the data that we obtained were compared and it was found that the Romanian honey types meet the international requirements for natural honey.

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