한국환경보건학회지 (Journal of Environmental Health Sciences)
- 제22권1호
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- Pages.1-4
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- 1996
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- 1738-4087(pISSN)
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- 2233-8616(eISSN)
물리 Tyrosinase의 활성도에 미치는 영향
Drinking Wateres Effects on Tyrosinase Activities
- Rhee, Byung-Chul (Waters Life Environment Research Center) ;
- Lee, Zong-Liong (Dept. of Chemistry, Chung Ang Univ.) ;
- Lee, Duk-Soo (Dept. of Chemistry, Kyung Won Univ.) ;
- Kim, Yil (Waters Life Environment Research Center)
- 발행 : 1996.03.01
초록
I have conducted two testings to find out which water is better for drinking water. First, I made 20 mM L-DOPA solutions by solving L-DOPA (3,4-Dihydroxyphenylalanine) in tap water, Waters' mineral water and reverse osmotic water. Then I measured activities after adding Tyrosinase (purifide enzyme, step 3), which was extracted from Salanum melongena(mad apple), in each L-DOPA solution. Second, I solved 0.1, 0.5 and 0.9% salt in each 20 mM L-DOPA distilled water to measure activity of each salt solution. The results of the testings are as follows: 1. 10 minutes after adding Salanum melongena(mad apple) tyrosinase in each L-DOPA solution, activity of Waters' mineral water was 0.867 tap water 0.777 and reverse osmotic water 0.742. 2. Activity of Waters' mineral water was higher than that of tap water by 10.4% and higher then reverse osmotic by 14.4%. 3. Activity of Waters' mineral water was much higher than that of 0.9% salt water by 41.8%. 4. The optimum pH of Salanum melongena (mad apple) tyrosinase is 9.0. Most enzymes working in the human metabolism are alkaline and body fluids' pH also alkaline. In conclusion, an alkaline water is believed better than an acidic water for drinking.