A cost-effective method for wet potato starch preservation based on hurdle technology

Abstract A new cost-effective method based on hurdle technology was developed for preserving wet potato starch (WPS; moisture content 44.5 ± 0.5%). Firstly, lactic acid, NaCl, and NaSO3 were used as hurdles to preserve WPS. Consequently, WPS treated with 2.0 g/kg lactic acid, 8.0 g/kg NaCl, and 300 mg/kg NaSO3 achieved superior preservation results during 30 d storage at 37 °C. Specifically, significantly reduced water activity (aw) (p