Cleaning Effect of Electrolyzed Oxidizing Water by Containing Food Additives

식품첨가제를 첨가한 전해산화수의 세정효과

  • Published : 2002.06.01

Abstract

This study, to enhance the sterilization, browning inhibition and precooling effect of electrolyzed oxidizing water(EOW) as cleaning water on food industry, was carried out to investigate the efficacy of electrolyzed oxidizing water(EOW) with 0.85% NaCl, 0.5% ethanol, polysorbate 80 of 1 ppm, 0.5% lemon juice and 0.5% citron juice. Escherichia coli KCTC 1039 with initial count of 5.63$\times$10$\^$8/ CFU/mL were reduced to <10$^1$CFU/mL after 15∼30 sec when it was treated by electrolyzed oxidizing water added with various food additives. Bacillus cereus KCTC 1012 were reduced to <10$^1$ CFU/mL after 2 minutes treatment with electrolyzed oxidizing water containing polysorbate 80 and ethanol. Iactobacillus plantarum KCTC 3108 were reduced to <10$^1$CFU/mL after 30 sec treatment with electrolyzed oxidizing water containing polysorbate 80, citron juice and lemon juice, respectively. Erwinia carotovora subsp. carotovora KCTC 2776 were reduced to <10$^1$CFU/mL after 30 sec treatment with electrolyzed oxidizing water containing polysorbate 80 and lemon juice. Browning inhibition effect was determined by comparison of polyphenol oxidase activity. Inhibition ratio of polyphenol oxidase was approximately 62∼84% in most treatments with the exception of 57% and 25% inhibition by 0.5% ascorbic acid and polysorbate 80, respectively. Sliced potato dipped in electrolyzed oxidizing water containing NaCl and citron juice for 30 minutes showed significantly low PPO activity, 64 units in treatment with NaCl and 91 units in treatment with citron juice. At the same time, changes in color value(△E) of sliced potato was below 3 in most treatments.

세정수로서의 전해산화수 효능을 증대시키기 위하여 다양한 식품첨가제를 첨가하여 제조한 $0^{\circ}C$ 이하의 세정수에 대한 냉각특성, 살균 및 갈변억제 효과를 조사하였다. 식품첨가제의 첨가비율은 NaCl 0.85%(w/v), ethanol 0.5%(v/v), 레몬과즙 0.5%(v/v), 유자과즙 0.5%(v/v), polysorbate 80은 1 ppm으로 결정하였다. 미생물 사멸효과는 초기 5.63$\times$$10^{ 8}$ CFU/mL인 Escherichia coli KCTC 1039가 모든 첨가구에서15~30초 이내에 전부 사멸하였으며, Bacillus cereu KCTC 1012는 polysorbate 80 및 ethanol 첨가구에서 2분 후, Lactobacillus plantarum KCTC 3108은 polysorbate 80, 유자 및 레몬과즙 첨가구에서 30초만에, 그리고 Erwinia carotovorasubsp. carotovora KCTC 2776은 polysorbate 80 및 레몬과즙 첨가구에서 30초만에 사멸하는 효과를 나타내었다. 갈변억제효과는 polyphenol oxidase의 활성을 측정하여 비교한 결과, asnrbic acid 0.5% 첨가구에 5분간 침지하였을 때 57%의 활성저해를 보인 반면, 25%의 저해능을 보인 polysorbate 80 첨가구를 제외한 모든 처리구에서 62~84%의 높은 활성저해 효과를 보였으며, 그 중에서도 NaCl 및 유자과즙 첨가구에서 30분 침지시에 각각 64, 91 units로 가장 낮은 활성을 보여주었다. 절단 감자를 30분간 침지처리한 후의 색도에서도 대부분의 처리구에서 색차($\Delta$E)가 3 이하를 나타내었다.다.

Keywords

References

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