한국식품위생안전성학회지 (Journal of Food Hygiene and Safety)
- 제12권2호
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- Pages.111-116
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- 1997
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- 1229-1153(pISSN)
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- 2465-9223(eISSN)
신선초 분말의 위생화를 위한 오존처리와 감미선 조사와의 비교 효과
Comparative Effect of ${\gamma}$ -Irradiation and Ozone Treatment for the Improvement of Hygienic Quality of Dried-Angelica Keiskei Koidz Powder
초록
For the purpose of improving hygienic quality of dried-Angelica Keiskei Koidz powder, the effect of ozone treatment and gamma irradiation on the microbial decontamination and physicochemical properties were investigated. Gamma irradiation at 5 to 7.5 kGy resulted in sterilizing total aerobic bacteria, molds and coliforms below detective levels, while ozone treatment for 8 hours up to 18 ppm did not sufficiently eliminate the total aerobic bacteria of the sample. The physicochemical properties of the sample were not changed by gamma irradiation up to 7.5 kGy, whereas, ozone treatment caused remarkable changes in pH, TBA value, chlorophyll, carotenoid and fatty acid compositions. Therefore, this investigation demonstrated conclusively that gamma irradiation was more effective than ozone treatment for decontaminating and sterilizing the dried-Angelica Keiskei Koidz powder, with minimal effect on the physicochemical properties analyzed.
키워드