KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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tans-Resveratrol Content of Varieties and Growth Period in Peanut

땅콩 품종 및 생육기별 trans-Resveratrol 함량

  • Published : 2003.12.01
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Abstract

trans-Resveratrol(3,5,4'-trihydroxystilbene) is phenolic compound present in grapes, wines, and peanuts, has been reported to have health benefits including anticarcinogenic effects, protection against cardiovascular diseases and reduced cancer risk. A simple method for the quantitative extraction of trans-resveratrol from peanut has been developed. Optimal conditions for extraction were investigated. Type of solvent, time, and temperature assayed influenced trans-resveratrol yield. Adequate extraction condition was decided to ethanol/water (80:20v/v) maintained at $25^{\circ}C$ for 45 min. After extraction, the protocol consists of sample preparation using a $\textrm{C}_{18}$ solid-phase extraction (SPE) cartridge after concentrate with rotary evaporator and quantified by reversed phase HPLC using a $\textrm{C}_{18}$ column at 308 nm. Analytical methods for measuring trans-resveratrol in peanut were adapted to isolate, identify, and quantify trans-resveratrol in 11 peanut varieties by HPLC (high-performance liquid chromatography) with UV detector, The 11 peanut varieties content ranged from 0.018 to 1.125 $\mu\textrm{g}/\textrm{g}$ with an average of 0.289 $\mu\textrm{g}/\textrm{g}$. The contents were higher in the seeds with than without testa, regardless of varieties. The trans-resveratrol content was Higher in 110, 130 days after sowing than that of other period.

본 연구에서는 땅콩의 resveratrol에 대한 체계적인 연구를 위하여 고속액체크로마토그래피HPLC)를 이용한 땅콩의 trans-resveratrol 분석체계 확립과 품종 및 생육시기별 trans-resveratrol 함량 변화를 구명하여 금후 고부가가치 고함유 기능성 품종개발의 기초 자료로 활용하고자 수행한 결과를 요약하면 다음과 같다. 1. HPLC를 이용한 trans-resveratrol 분석조건은 컬럼은 Xterra $\textrm{C}_{18}$, 이동상 용매조성은 (A) glacial acetic acid DCW(52.6 : 900)과 (B) acetonitril solution A(80:20), 용매흐름속도는 1.1 ml/min, 검출기는 UV-Vis detector 308 nm 이었다. 2. 땅콩에서 trans-resveratrol 추출시 추출용매의 경우 80%EtOH과 80%MeOH이 유의차가 없었고, 추출온도의 경우에도 온도간 유의성이 인정되지 않았으며, ICH guideline에 따른 안전성과 경제성을 고려한 trans-resveratrol의 최적추출 조건은 80% EtOH, $25^{\circ}C$, 45분이었다. 3. 땅콩 품종별 trans-resveratrol 함량 분포범위는 0.018-1.125 $\mu\textrm{g}/\textrm{g}$으로 품종별 유의차가 있었으나, 초형과 립 크기에 따른 trans-resveratrol 함량은 일정한 경향을 보이지 않았다. 4. 종실과 종피를 포함한 종실의 trans-resverarol함량은 종실(0.152-0.305 $\mu\textrm{g}/\textrm{g}$) 보다 종피를 포함한 종실(0.188-0.345 $\mu\textrm{g}/\textrm{g}$)에서 더 높았다. 5. 생육시기별 trans-resveratrol 함량은 신남광땅콩(0.227$\mu\textrm{g}/\textrm{g}$ 대광땅콩(0.418 $\mu\textrm{g}/\textrm{g}$)은 파종 후 110일에 팔광땅콩(0.486 $\mu\textrm{g}/\textrm{g}$)과 밀양16호(0.441 $\mu\textrm{g}/\textrm{g}$)는 파종 후 130일에 가장 높았다.

Keywords

References

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