In comparison to 1-penten-3-one, the 1-penten-3-ol lag phase was longer even when the mayonnaise did not contain antioxidant(Fig. 2C). Whereas almost all mayonnaises had 12 days of lag phase, those with caffeic acid, methyl caffeate and octyl caffeate (at 200 lM) added had a lag phase of 9 days. However, the rate
for the development of 1-penten-3-ol was faster than that found for the 1-penten-3-one. Although the ranking of 1-penten 3-one is a bit different than that found for 1-penten-3-ol, again the lowest concentration of this volatile was found in Mayo_CAC12 and MAYO_CAC8 200 followed by Mayo_CAC4.