Removal of aflatoxin B1 in edible plant oils by oscillating treatment with alkaline electrolysed water

Alkaline electrolysed water (AlEW) with different pHs was produced by an electrolysed water generator through adjusting the electric current and voltage. The produced AIEW had a pH above 10, and a low oxidation-reduction potential (ORP) of less than -560 mV. In the current study, the effectiveness of AIEW on decontamination of aflatoxin B-1 (AFB(1)) in various edible plant oils was investigated. The character of AIEW, oil type and the volume of AlEW were major factors which could influence the APB(1) elimination effectiveness. AIEW with pH 12.2 had the greater potential to remove APB(1). When 10 ml AlEW with pH 12.2 were added to 5 g peanut oil or olive oil (fortified level at 40 mu g kg(-1)), followed by oscillation for 5 min at 20 degrees C, the removal rate of AFB(1) could reach nearly 100%. The volume of AIEW needed to completely remove the APB, varied with the pH of AIEW and with the oil type. The degradation products of APB, were also investigated. (C) 2013 Elsevier Ltd. All rights reserved.