Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Optimization of Hot Water Extraction Conditions from Hericium erinaceus

노루궁뎅이 버섯의 열수 추출조건의 최적화

  • Published : 2004.07.01
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Abstract

Response surface methodology (RSM) was used to monitor characteristics of hot water extracts from Hericium erinaceus. A central composite design was applied to investigate the effects of independent variables, extraction temperature (X$_1$), sample ratio (X$_2$) and extraction time (X$_3$) on dependent variables such as soluble solid (Y$_1$), total phenols (Y$_2$), crude protein (Y$_3$) and electron donating ability (Y$_4$) of the extracts. As the sample ratio increased, the soluble solid content increased, while extraction temperature played a minor role. As a whole total phenols and crude protein contents increased with increasing the sample ratio. Electron donating ability increased in proportion to extraction temperature and sample ratio, which didn't increase at certain period. Then ranges of optimum extraction conditions for maximized physicochemical properties were 91.5∼96.5$^{\circ}C$ in extraction temperature and 3.5∼4.2 g/100 mL in sample ratio. Predicted values at the optimized conditions were coincident with experimental values.

노루궁뎅이 버섯의 열수 추출 실험을 실시하면서 반응표면분석에 의해 추출물의 특성을 최적화하였다. 추출물의 가용성 고형분은 설정된 추출온도와 추출시간에 대해서는 영향을 받지 않는 것으로 나타났으며, 용매에 대한 시료비가 증가할수록 가용성 고형분이 증가하였으며, 페놀성 화합물과 조단백 함량도 추출온도보다는 용매에 대한 시료비가 더 큰 영향을 미치는 것으로 나타났다. 추출물의 전자공여작용은 용매에 대한 시료비와 추출온도가 증가할수록 증가하다가 최적 추출조건에서 최대점을 보이다가 이후로 감소하는 경향을 나타내었다. 이들 추출물의 특성을 모두 만족시키는 최적 추출조건은 추출온도 91.5$^{\circ}C$∼96.5$^{\circ}C$, 용매에 대한 시료비 3.5∼4.2 g/100 mL로 나타났으며 예측된 최적 추출조건의 임의의 점에서 실험한 결과, 각 반응변수들의 예측값과 실제값이 유사하였다.

Keywords

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