논문 상세보기
pp.358-363
식용유지 중의 산화방지제를 효율적으로 분석하기 위하여 일반적인 용매추출법과 SCD법으로 전처리하여 HPLC법으로 비교 분석하였다. SCD법의 최적조건은 florisil의 활성도와 UNITREX의 온도와 추출시간에 따른 회수율로 분석하였다. 식용유지에 산화방지제를 농도별로 가하여 용매추출법과 SCD법의 회수율을 비교한 결과 용매추출법은 80.4∼102.1%, SCD법은 89.8∼106.4%로 나타났다. Florisil의 활성화에 따르면 2% 수분 첨가시 TBHQ, BHA, BHT는 89.8∼106.4%로 회수율이 가장 높았고, PG는 5% 수분 첨가시 53.9±7.3%의 회수율을 보였다. 회수율은 UNITREX의 210℃에서 20분간 추출하였을 때 가장 높았다.
This study was conducted to evaluate the extraction methods for the determination of antioxidants in soybean oil. Recovery rates of various antioxidants in soybean oil showed similar rates as 80.4∼102.1% by solvent/solvent extraction method and 89.8∼106.4% by sweep co-distillation method except 46.6∼61.2% of PG at corresponding spiked concentractions. The maximum recovery rates of antioxidants were obtained when extraction time and extraction temperature used in UNITREX were 20min and 210℃ respectively. In the recovery rates with the activation of florisil, when 2% of water was added to florisil, the highest recovery rates for TBHQ, BHA, BHT were obtained by sweep co-distillation method. Therefore, sweep co-distillation method showed less solvent, simple operation and high recovery rate compared with solvent/solvent extraction method.
