Earticle

Antioxidant effects of hydrogen gas inhalation for 60 mins (75ml/min) and drinking high concentration of hydrogen water (pH 8.49±0.3, ORP 23mV, hydrogen concentration 1177ppb) were examined – for more than 30 years of age of healthy 32 males volunteers. In hydrogen water drinking group, reactive oxygen species was change to 297297.0±57.9 from 303.8±53.6 in 5 mins. In hydrogen gas inhalation group, reactive oxygen species was changed to 284.4.0±53.6 from 310.4±56.2 in 60mins. Also, The individual reduction rate of reactive oxygen species was 56.3% in hydrogen water drinking group and 68.8% in hydrogen gas inhalation group. These results show that hydrogen gas inhalation and hydrogen water drinking have antioxidant effects.

The purpose of this study is to confirm the blood glucose reducing effect of Gangcheon mountain spring water (GSW) in Sunchang-gun, Jeollabuk-do and nanobubble water made of the hydrogen gas bubbling on the subject of DM patients. And body obesity, urine, blood and blood pressure test were examined to confirm the body changes. The participants were divided into three groups: GSW group (n=20) which were supplied with Gangcheon mountain spring water, TW group (n=20) supplied with purified tap water, and NBW group (n=20) supplied with nanobubble water. The drinking volume of water per a day was 30mL/kg body weight and the experimental period was three months. GSW group showed a significant reduction of blood glucose (p<0.01) and blood pressure (p<0.01) in a month, but others groups did not show any difference. However, there are no major impacts on blood glucose and blood pressure in two and three months. Also, Nanobubble group showed significant reduction of malondiadehyde in a month (p<0.05). Nothing unusual was found in the obesity, urine and blood tests.

Ultraviolet-C light produces ultraviolet energy that can destroy wide range of microorganisms, without the use of chemicals. Here, we investigated the anti-bacterial effects of portable UV-C light on river water samples. Water samples were obtained from a river in Wonju City, Gangwon-do, Republic of Korea. The water samples were then transferred in a water bottle to be tested in the laboratory. The UV-C lamp tube was submerged in a water bottle, where it was then exposed to different doses of UV-C light: 0 sec, 20 sec, 40 sec, 1 min, 2 min, and 3 min. Microbial tests were done by spread plating using Blood Plate Agar (BPA) and pour plating using Nutrient Agar (NA). Our results showed a high antibacterial effect against bacteria in river water cultured in BPA and NA. The percent reductions of bacteria in BPA were 99.75% in 20 seconds while 100.00% in 40 sec, 1 min, 2 min, and 3 min. On the other hand, the percent bacterial reduction in NA were 85.71%, 83.71%, 90.48%, 99.75%, and 100.0% in 20 sec, 40 sec, 1 min, 2 min, and 3 min. This study confirmed the antibacterial efficacy of UV-C light by the percent bacterial reduction cultured in BPA was totally cleared in 40 seconds while NA was cleared in 3 min. This study could be applied in as water disinfectant in developing countries where access to safe drinking water is inadequate.