Caracterização físico-química de méis produzidos no município de Itaqui – RS

Abstract

Honey is a concentrated solution of sugar, predominantly glucose and fructose and is produced by honey bees, which collect, transform, combine with their own specific substances, store and leave to mature in honeycombs. The objective of this study was to evaluate the physicochemical properties and possible changes in honey samples produced in the city of Itaqui - RS and verify its adequacy to the standards of the Brazilian legislation. Was did the analyzes indicated by the Instruction Normative Instruction No. 11 of October 20, 2000 in eight samples of honey from four small producers in the city, between the years 2013 and 2014 were carried out as well as pH, reaction lugol Fiehe reaction and reaction Lund, to check for possible tampering. The honey humidity ranged from 17.4% to 18.2% in 2013 and 18.8 to 23.0% in 2014, indicating that two samples are outside the norms of law. For pH values ranged from 3.71 to 4.28 in 2013 and 3.81 to 3.98 in the year 2014. The total acidity results are higher than the established by Brazilian law, which defines how tolerance 50 mEq/kg of total acidity , except the sample three 2013. The average levels of hydroxymethylfurfural found in honey analyzed samples ranged from 51.83 to 83.93 mg/kg in samples of 2013 and from 27.68 to 73.47 mg/kg in samples of 2014 and thus two samples were outside the Brazilian legislation specification. All honey samples analyzed showed reducing sugar content higher than the limit established by Brazilian legislation, which is at least 65%. The saccharose values ranged from 0.06% to 6.26% in the samples 2013 and 0.07 to 6.97% in 2014. The samples diastase activity results indicate that all samples found in accordance with the law. The ash content of the samples ranged from 0.03 to 0.18% in the samples 2013 and 0.05 to 0.2% in samples of Lund 2014. In reaction two samples showed no precipitate formation, indicating Honey tampered with. All samples were negative for the reaction of Lugol. The reaction Fiehe showed negative reaction only for two samples, indicating that honey was overheated. Thus, it is concluded that for moisture, total acidity, hydroxymethylfurfural and apparent sucrose were found non-conformities in accordance with the standards established in the Brazilian legislation in the analyzed samples of honey.