찻잎의 수확시기, 돈차의 숙성기간 및 추출온도가 돈차의 생리활성에 미치는 영향 (Effects of Harvesting Time, Aging Period and Extracting Temperature of Wild Green Tea (Camell sinesis) Leaves on Physiological Activity of Don Tea)

서지정보

· 발행기관 : 한국지역사회생활과학회
· 수록지 정보 : 한국지역사회생활과학회지 / 19권 / 3호 / 365 ~ 371페이지
· 저자명 : 박용서, 허북구, 유현희, 이미경

초록

This study was conducted to determine the potent physiological activity of traditional wild tea (“Don tea”; coin-shaped tea) as affected by different harvesting times, aging periods and extracting temperatures. No difference in anti-oxidative activities in the harvesting time and extracting temperature of tea leaves was observed. However, short aging periods of Don tea showed high ABTS {2-2-azonobis (3-ethylbenzothiazolin- 6-sulphonic acid)} activity, ranging from 71.52 to 79.96%. DPPH (α, α-diphenyl-β-picryl-hydrazyl) radical scavenging activity of Don tea was 71.10 to 91.40%. Especially, longer aging period and an extracting temperature of 100℃ showed higher DPPH radical scavenging activity. With longer aging periods and an extraction at 90℃, nitrite radical scavenging activity of Don tea ranged from 74.04 to 94.92%. On the other hand, angiotensin 1-converting enzyme (ACE) inhibition activity of Don tea was 59.77-81.97%. It showed higher activity when harvested in June and August, aged for longer periods, and extracted at 100℃. These results suggested Korean traditional Don tea exhibited the highest physiological activity when aged over 8 months.

영어초록

This study was conducted to determine the potent physiological activity of traditional wild tea (“Don tea”; coin-shaped tea) as affected by different harvesting times, aging periods and extracting temperatures. No difference in anti-oxidative activities in the harvesting time and extracting temperature of tea leaves was observed. However, short aging periods of Don tea showed high ABTS {2-2-azonobis (3-ethylbenzothiazolin- 6-sulphonic acid)} activity, ranging from 71.52 to 79.96%. DPPH (α, α-diphenyl-β-picryl-hydrazyl) radical scavenging activity of Don tea was 71.10 to 91.40%. Especially, longer aging period and an extracting temperature of 100℃ showed higher DPPH radical scavenging activity. With longer aging periods and an extraction at 90℃, nitrite radical scavenging activity of Don tea ranged from 74.04 to 94.92%. On the other hand, angiotensin 1-converting enzyme (ACE) inhibition activity of Don tea was 59.77-81.97%. It showed higher activity when harvested in June and August, aged for longer periods, and extracted at 100℃. These results suggested Korean traditional Don tea exhibited the highest physiological activity when aged over 8 months.

참고자료

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