Abstract
The stability of thiamin and riboflavin in enriched pasta humidified to different water activities was measured at 25, 35, 45, and 55°C for periods of up to 1 yr. Riboflavin was shown to be extremely stable (dark reaction) whereas thiamin losses were significant. Thiamin loss increased with temperature (Q10 of 4.5) and water activity. Predictions of thiamin loss for a square wave temperature fluctuation using steady state data were compared to actual losses found in storage for pasta held at equal alternating times at 25/45 and 25/55°C. The Hicks‐Schwimmer‐Labuza model provided an adequate method for predicting both the amount of loss and the effective temperature from steady state data.
Original language | English (US) |
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Pages (from-to) | 1457-1461 |
Number of pages | 5 |
Journal | Journal of food science |
Volume | 46 |
Issue number | 5 |
DOIs | |
State | Published - Sep 1981 |