In our present paper, the effect of water activity and processing conditions in reconstituted potato chips was considered as a model to investigate the changes of acrylamide (AA) and 5-hydroxymethylfurfural (HMF). The results suggested that the formation of AA and HMF was highly correlated with frying temperature and time. Water activity could also influence the formation of AA and HMF. Meanwhile, the formation of HMF has significant correlation with the formation of AA in reconstituted potato chips. A typical exponential growth curve was observed by plotting AA levels vs HMF content which were all determined under different heating condition: [Formula: see text]. The model could be used as a tool for estimating the formation of AA when the content of HMF was known.

Acrylamide (AA) is known to be a neurotoxic, genotoxic and carcinogenic compound, which is classified as a probable human carcinogen. The main purpose of this paper was to study the changes in peroxide value (PV), p-anisidine value (PAV), methylglyoxal (MG), and moisture content (MC) in potato slices fried at different temperatures and lengths of time. The determination of AA was carried out using HPLC-MS/MS.Our results showed that AA formation was obviously influenced by MG content and PV; the AA content increases with the increase of PV and MG. The contribution of PV and MG to AA formation was included in a prediction model that could be used as a tool to predict the formation of AA in potato slices, and the model was as follows: AA ¼ À0.200-0.001 Â MC + 0.330 Â PV + 0.074 Â PAV + 0.103 Â MG. The predicted AA content value was in good agreement with the actual AA content.

No abstract