• Title/Summary/Keyword: Effect of alcohol

Search Result 1,876, Processing Time 0.039 seconds

Characteristic rheological responses of PVA solutions in water-containing solvents

  • Song, Song-Ie;Kim, Byoung-Chul
    • Proceedings of the Korean Fiber Society Conference
    • /
    • 2003.10b
    • /
    • pp.181-182
    • /
    • 2003

  • Poly(vinyl alcohol) (PVA) is a semicrystalline polymer whose hydroxyl groups produce inter-and intramolecular hydrogen bonding. The extent of hydrogen bonding is greatly affected by stereoregularity of hydroxyl groups, so-called tacticity, of PVA[1-3]. Hydrogen bonding has a profound effect on the rheological and mechanical properties of the polymer, which is largely determined by the density and spatial arrangement of hydroxyl groups. (omitted)

  • PDF

Hepatic Detoxification activity and reduction of Serum Alcohol concentration of Hovenia dulcis $T_{HUNB}$ from Korea and China (중국산과 국내산 헛개 나무 열매의 체내 알콜 분해능 및 간 해독 작용)

  • Kim, Min-Hae;Chung, Yoo-Taek;Lee, Jin-Ha;Park, Young-Shik;Shin, Myung-Ki;Kim, Ho-Sang;Kim, Dong-Hoon;Lee, Hyeon-Yong
    • Korean Journal of Medicinal Crop Science
    • /
    • v.8 no.3
    • /
    • pp.225-233
    • /
    • 2000

  • There was not noticeable differences in decreasing blood alcohol concentrations between Korea and China-produced Hovenia dulcis $T_{HUNB}$, showing only 1-2 % higher decreasing rate for Korea-produced seed extracts than those from China. It was also found that the blood alcohol decreasing ability was greatly enhanced by partitioning the crude extracts produced from both places. The both extracts (crude and partitioned) accelerated the reducing rate of blood alcohol concentrations down to 1-2 hours, compared to that of control (taking only ethanol). The crude extracts from imported seeds seemed to have slightly better effect on improving in vivo ADH and ALDH activities than domestic ones; however, not for partitioned extracts. It was interesting that the partitioned extracts from both countries enhanced ADH enzyme activity up to 60% than the crude, compared to the control, while ALDH activity was not much affected by the partitioned extracts. It was also confirmed that both ADH and ALDH activities were well balanced in controlling blood alcohol concentration maintaining 28-29% of enzyme activities in vivo. The extracts proved to have better effect on enhancing ALDH activity than ADH activity, which is one of possible explanation that Hovenia dulcis $T_{HUNB}$ can effectively relieve the hangover by fast decreasing acetaldehyde concentration in the liver and blood. GST activity was also increased in the range of 120 to 300% by adding crude or partitioned extracts from both countries; however, there was no difference in enhancing GST activity between the extracts from two countries. The extracts showed competitive inhibition with GST activity, showing the reduction of enzyme activity at higher than 0. 6 (g/L) of the imported extracts.

  • PDF

한국인의 만성질환

  • Seong, Eun-Ju
    • 한국유가공학회:학술대회논문집
    • /
    • 2005.06a
    • /
    • pp.1-12
    • /
    • 2005

  • Chronic diseases such as cancer, cardiovascular diseases, are the leading cause of death and disability in Korea since 1970 due to lifestyle change introduced by urbanization & industrialization. The type of cancer and cardiovascular diseases changes as lifestyle becomes westernized. These diseases account for 4 of every 10 deaths and affect the quality of lift of Koreans. Although chronic diseases are among the most common and costly healthy problems, they are also preventable. Adopting healthy behaviors such as quitting smoking, being physically active, eating right with moderate alcohol drinking, and maintaining healthy weight can prevent or control the effect of these diseases.

  • PDF