백미삼(지근), 홍미삼(지근) 및 홍삼절편(주근: 수삼-절편-증삼-건조)을 대상으로 팽화시켜 팽화 인삼분말의 흡습 특성을 조사하고 수분활성도 예측모델을 수립하였다. 등온 흡습곡선은 대부분의 식품들과 같이 역S형의 형태을 나타내었으며 가장 낮은 온도인 에서 평형수분함량이 가장 높았다. 단분자층수분함량은 BET식 에 의해 solid의 값으로 계산되었으며 BET식에 적용했을 때 가 로 GAB식 보다 높은 유의성을 보였다. 등온흡습곡선의 적합도는 K

In this study, raw ginseng produced by different method; was puffed and the absorption characteristics of the puffed ginseng powders were investigated Raw ginseng preparations, including white ginseng lateral root (WGL), red ginseng lateral root (RGL) and red ginseng main root (RGM) with 15 % moisture were puffed at a pressure of . The equilibrium moisture contents of puffed powders were affected by temperature and water activity. The monolayer moisture content determined by 1he BET equation was 0.034-0.045g solid. The parameter of 1he BET equation was higher than that of the GAB equation. The absorption enthalpies, calculated using various water activities, showed a decreasing trend with increasing water activity. Amongst models applied for predicting equilibrium moisture content, 1he Kuhn model was 1he best fit for puffed ginseng powders, giving 1he lowest prediction deviation of 2.83-8.65% The prediction model equation for water activity included 1he variable of time, water activity (RH/l00) and temperature, whereas an equation featuring the parameters of time and water activity was the best model equation identified.

• 김상태
• 윤광섭
• 권중호
• 문광덕