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Determination for Inflow Routes of Insects Caused by Manufacturing and Drinking Process in Korean Rice-wine  

Kim Seung-jin (Research Laboratories, Kooksoondang Brewery Co. Ltd.)
Lee Jeoung-hoon (Research Laboratories, Kooksoondang Brewery Co. Ltd.)
Choi Yuung-hwan (Research Laboratories, Kooksoondang Brewery Co. Ltd.)
Kim Gye-won (Research Laboratories, Kooksoondang Brewery Co. Ltd.)
Publication Information
Journal of Food Hygiene and Safety / v.20, no.3, 2005 , pp. 123-127 More about this Journal
Abstract
To determine the possibility of inflow routes for insect in Korean rice-wine, we investigated catalase (CAT) activity and oxygen bubble formation through stereoscopic microscope in pasteurized insects (bee, fly, fruit fly) treated with $H_2O_2$. The pasteurization condition was 30 and 60 min heating at 65 and $70^{\circ}C$. Bubble was not shown under the CAT level of 50 $\mumoles/min/ml$. CAT activity level was more sensitive compared with oxygen bubble formation, but the CAT activity had correlation with oxygen bubble formation method. We also tested bubble formation at room temperature, 65 and $70^{\circ}C$ for 30 days. The bubble formation was slowly decreased in all insects at room temperature during experiment, but it was rapidly decreased at 65 and $70^{\circ}C$. The fruit fly was not shown bubble formation at 65 and $70^{\circ}C$. These results suggest that bubble farmation method was a new simple method for inflow routes of insects caused by manufacturing and drinking process in pasteurized Korean rice-wine.
Keywords
Korean rice-wine; Insect, Catalase; Bubble formation; Inflow routes; Pasteurization;
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