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4864818 
Journal Article 
Identification of the source of an off-odor in premiums intended for use with dry mix beverages 
Apostolopoulos, D 
1998 
Yes 
Developments in Food Science
ISSN: 0167-4501 
DEVELOPMENTS IN FOOD SCIENCE 
40 
C 
753-757 
English 
WOS:000075013400069 
Premiums intended to be inserted inside packaged dry mix beverages were tested for off-odor. Headspace gas chromatography/mass spectrometry was used in combination with an odor test to identify the volatiles in the premiums and also evaluate the odor barrier characteristics of the overwrap film. Data obtained from the headspace analysis of unwrapped premiums showed extraordinarily high amounts of chemicals with the major residual component being identified as cyclohexanone. Toluene, 2-methyl heptane, and 3-methyl hexane were the next sizable components.



The source of those residual chemicals was considered to be solvents used with either the resin or the paint employed in the manufacturing and painting of the premiums.



Odor testing of unwrapped premiums demonstrated a very strong, "solvent-like", objectionable odor. Residual cyclohexanone in overwrapped premiums was found to be about 16 times less than in the unwrapped premiums. Furthermore, the overwrapped premiums exhibited no off-odor. This clearly suggested that the solvent barrier provided by the plastic film used for overwrapping of the premiums was sufficient to prevent any residual solvent contamination of the dry mix beverages.



It is apparent, however, that an unsealed premium overwrap or a premium with a punctured overwrap film would allow significant amounts of residual cyclohexanone and other residual solvents to transfer into the packaged contents and cause a severe off-odor problem. For that reason, it was recommended that those premiums should not be used with packaged dry mix beverages.