[1561]
Beauchamp, J., E. Zardin, P. Silcock, and P. J. Bremer,
"Monitoring photooxidation-induced dynamic changes in the volatile composition of extended shelf life bovine milk by PTR-{MS}",
Journal of Mass Spectrometry, vol. 49, pp. 952–958, Sep, 2014.
Link:
http://dx.doi.org/10.1002/jms.3430
<p>Exposure of milk to light leads to photooxidation and the development of off-flavours. To follow these reactions, semi-skimmed (1.5% fat) and whole (3.8% fat) extended shelf life (ESL) bovine milk samples were exposed to fluorescent light for up to 20 h at room temperature, and the volatiles in the samples' headspace were measured in real time using proton-transfer-reaction mass spectrometry (PTR-MS). Compounds tentatively identified as methanethiol, acetone/propanal, pentanal/octanal/nonanal/1-octen-3-ol, hexanal, diacetyl, dimethyl disulphide, heptanal and benzaldehyde displayed dynamic release profiles relating to the changes occurring in milk upon exposure to light. Copyright © 2014 John Wiley & Sons, Ltd.</p>