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Journal of Dairy Science Vol. 46 No. 8 785-788
© 1963 by American Dairy Science Association ®
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Carbonyl Pattern of Sunlight-Exposed Milk1

Lawrence A. Wishner and Mark Keeney

Department of Dairy Science, University of Maryland, College Park

ABSTRACT

A comparative micro-analysis was made of the carbonyl compounds in control and sunlight-exposed milk. Alk-2-enals (C6-C10) were detectable in the exposed milk and absent from the control milk. Significantly higher levels of butanone and pentanone were observed in the exposed than in the control milk. Exposure caused a significant decrease in the formaldehyde content of the milk. Methional could not be detected in the exposed milk. The previously indicated role of methional in sunlight milk flavor may be mediated by its conversion to other flavorful sulfur compounds.

FOOTNOTES

1 Scientific Article No. A1043. Contribution No. 3448 of the Maryland Agricultural Experiment Station.






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Copyright © 1963 by the American Dairy Science Association ®.