Journal of the Korean Society of Clothing and Textiles (한국의류학회지)

The Korean Society of Clothing and Textiles (한국의류학회)
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Separation of Chromophoric Substance from Sappanwood under Different Extraction Conditions

염료 추출조건에 따른 소목의 색소성분 분리 거동

  • 안춘순 (인천대학교 패션산업학과)
  • Published : 2007.12.31
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Abstract

The research aimed to establish the standard extraction procedure for examining brazilin, the major chromophoric substance of Sappanwood, using GC-MS with the ultimate goal of identifying the sappanwood dye in severely faded archaeological textiles. The amount of brazilin represented by the GC abundance was the largest when acetone was used as the extraction medium, followed by methanol. Shaking plate operated at room temperature was more effective than the waterbath shaker which was operated at $30^{\circ}C$. In both cases, the extraction method which incorporated one hour pre-soaking before the 12 hours of actual extraction resulted in a larger amount of brazilin detection than the extraction procedure without the one hour pre-soaking. In case of water extraction, pH 5 resulted in the most effective pH level for the extraction of brazilin, The best GC-MS parameter for detecting brazilin was to set the column temperature initially at $50^{\circ}C$. gradually increase to $210^{\circ}C$ at a $23^{\circ}C/min$ rate, finally increase to $305^{\circ}C$ at $30^{\circ}C/min$ rate, and hold for 14 minutes, and the MSD scan range at $75{\sim}400m/z$.

본 연구는 출토직물의 염료 성분 판정을 위한 장기적인 프로젝트의 일환으로서 천연염료 식물 중 우리나라는 물론 동서양 각지에서 과거에 염색식물로 널리 사용되었던 소목에 대하여 주 색소성분인 브라질린을 가스크로마토그라피 질량분석법(GC-MS)으로 검출할 수 있는 최적의 염료 추출 및 분석 조건을 확립하는데 그 목적을 두었다. 소목추출액에 대한 GC-MS 분석 결과 증류수보다는 메탄올이, 메탄올보다는 아세톤 추출이 브라질린 추출효과가 높았다. 추출기기 간에는 $30^{\circ}C$로 진행된 waterbath shaker보다 상온에서 진행된 shaking plate가 브라질린 추출이 높았으며 두 기계 모두 1시간보다는 12시간 추출이 월등히 높은 추출량을 보였다. 증류수를 사용해 pH $3{\sim}9$로 조절하여 브라질린의 추출효과를 조사한 결과 pH 5 조건에서 브라질린 검출량이 가장 많았다. GC-MS 분석 조건은 컬럼내 온도를 초기온도 $50^{\circ}C로 하고 온도 증가율을 $23^{\circ}C/min$로 하여 $210^{\circ}C$까지 끌어올리고 다시 온도증가율을 $30^{\circ}C/min$로 하여 최종적으로 $305^{\circ}C로 가열한 후 14분 동안 holding하여 전체 분리시간을 24.12분으로 한 방법이 가장 효과적이었으며 MSD 스캔범위는 $75{\sim}400m/z$이 적합하였다.

Keywords

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