Comparison of the water- saving ability of acid electrolyzed water and sodium hypochlorite on fresh- cut spinach

The aim of the article was to compare the water- saving ability of acid electrolyzed water and sodium hypochlorite during washing fresh- cut spinach. The bacteriostatic effect, physical and chemical indicators of cleaning agent were studied after washing fresh- cut spinach under the conditions of using cleaning agent several times and different washing ratio. The results showed that acid electrolyzed water significantly reduced the total number of bacteria on fresh cut spinach in low washing ratio when compared with sodium hypochlorite. Acid electrolyzed water exhibited better bacteriostatic effect than sodium hypochlorite under the condition of the same washing time.Physical and chemical indicators of acid electrolyzed water changed and the total number of bacteria less than other cleaning agent which indicating that acid electrolyzed water had more potential for recycling use.p H change was small, ORP and active chlorine decreased significantly after repeating use of cleaning agent.Keeping high ORP was very important factor to during washing processing.