EC and EGCG were evaluated in UHT milk processing
to assess their effectiveness in a real food system. The
development of fluorescence (Ex 360 nm, Em 440 nm) in
milk processed at 140 1C for 15 s with EC and EGCG is
shown in Table 1. The mean levels of fluorescence for
before and after thermal processing are presented, with an
average difference listed for comparison purposes to assess
effectiveness. The addition of EC and EGCG to raw milk
immediately changed the fluorescence intensity. EC at
1.0 mmol/l slightly decreased fluorescence, while 1.0 mmol/l
EGCG showed an increase.