Stability of volatile compounds of honey during prolonged storage.

The aim of the study was to identify, via headspace solid phase microextraction and gas chromatography-mass spectrometry, volatile compounds in eight no processing L. honey samples produced in the state of Santa Catarina, Brazil, and monitor their stability over 540 days of storage at 20 ± 4 °C, searching for possible degradation indicators compounds. The result of the initial analysis showed the presence of 32 volatile compounds and 24 were selected for the evaluation of the behavior over the storage. The volatiles - and -linalool oxide and hotrienol showed increased over 540 days, except for one sample, which showed a decrease in the - and - linalool oxide contents. Other compounds (ethyl acetate, 1-hexanol. 2-ethyl, benzoic acid. ethyl ester, butanoic acid. 3-methyl, butanoic acid. 2-methyl, and salicylic acid. tert.-butyl ester) were detected in at least one sample from 360 days of storage. Considering the storage system applied, the compounds - and -linalool oxide and hotrienol, which were found in all samples and times evaluated, can be considered possible indicators compounds of degradation of honey.