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KMID : 0366119770050030113
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Korean Journal of Applied Microbiology & Bioengineering
1977 Volume.5 No. 3 p.113 ~ p.118
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Development of Temporary Preservation Method for Small Scale Dairy Farm Milk by H₂O₂ Catalase Treatment
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Park I.S.
Pack M.Y.
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Abstract
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Into the precontaminated farm milk hydrogen peroxide (H₂O₂) was added at the concentrations ranging from 0.01% to 0.05 % and kept at 30℃ for 16 hours with periodical determinations for viable counts, resid H₂O₂, and lactic acid. Under the tested conditions the initial level of contaminated bacteria could be arrested from growing at least for 8,12, and 16 hours by treating the milk with 0.01, 0.02, and 0.03 per cent of H₂O₂, respectively. Furthermore, when the H₂O₂ concentrations ware limited within the level of 0.03 per cent the added H₂O₂ was completely decomposed within 12 hours without the aid of external catalase and the decomposition time decreased in parallel with the H₂O₂ concentrations. A safer use of H₂O₂for preserving farm milk temporarily by limiting its concentration has been discussed.
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