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Química Nova

Print version ISSN 0100-4042

Abstract

GARCIA-AMOEDO, Luis Henrique  and  ALMEIDA-MURADIAN, Ligia Bicudo de. Comparison of methodologies for royal jelly's moisture determination. Quím. Nova [online]. 2002, vol.25, n.4, pp.676-679. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422002000400024.

The aim of this paper was to compare methods of moisture determination to choose the best one for the determination of this parameter in royal jelly samples. Royal jelly is sensitive to high temperatures becoming dark and loosing volatiles in high temperatures. The methods were: vacuum oven at 60 ºC, 70 ºC, conventional oven at 105 ºC, Karl Fisher, dissecator with sulfuric acid and dryness with infrared light at 105 ºC. Based on the results, the best method was the dissecator with sulfuric acid for moisture determination in royal jelly.

Keywords : royal jelly; moisture; methods.

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