Department of Food Sciences & Engineering, China Agricultural University, Beijing 100083, China.
J Food Prot. 2010 Mar;73(3):483-7. doi: 10.4315/0362-028x-73.3.483.
Electrolyzed oxidizing water (EOW) has been regarded as a potential environmentally friendly broad spectrum microbial decontaminant. EOW with a pH of 3.0 and oxidation reduction potential of 1,079.0 mV were generated by the electrolysis of a dilute NaCl solution (20 mM) in an electrochemical cell. The effects of EOW, 1% NaClO solution, and alkaline electrolyzed water on controlling microbial growth, germination ratio, and enrichment of gamma-aminobutyric acid in germinated brown rice (GBR) were evaluated in this study. Results show that EOW was the most effective at inhibiting microbial growth during germination. Rinsing the rice grains with EOW at 12-h intervals resulted in aerobic plate count reductions of 4.82 log CFU/g, while soaking resulted in bacterial count reductions of 5.38 log CFU/g after 72 h of germination. Moreover, EOW significantly enriched gamma-aminobutyric acid content in GBR (P < 0.05); content was increased 1.6 times in grain rinsed with EOW and 1.8 times in grain soaked in EOW. The findings indicate that EOW is a feasible disinfectant for industrial GBR production.
电解氧化水 (EOW) 已被视为一种有潜力的环保广谱微生物消毒剂。通过在电化学电池中电解稀氯化钠溶液（20 mM），可生成 pH 值为 3.0 和氧化还原电位为 1,079.0 mV 的 EOW。本研究评价了 EOW、1%NaClO 溶液和碱性电解水对控制发芽糙米（GBR）中微生物生长、发芽率和γ-氨基丁酸富集的影响。结果表明，EOW 在发芽过程中抑制微生物生长的效果最显著。每隔 12 小时用 EOW 冲洗米粒，可使需氧平板计数减少 4.82 log CFU/g，而浸泡 72 小时后，细菌计数减少 5.38 log CFU/g。此外，EOW 可显著富集 GBR 中的γ-氨基丁酸含量（P<0.05）；用 EOW 冲洗米粒可使含量增加 1.6 倍，用 EOW 浸泡米粒可使含量增加 1.8 倍。研究结果表明，EOW 是一种可行的工业 GBR 生产消毒剂。
