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마늘 에탄올 추출물의 이화학적 특성에 대한 추출조건의 모니터링
차태양,김성호,권택규,권중호,이상한,이진만,Cha, Tae-Yang,Kim, Seong-Ho,Kwon, Taeg-Kyu,Kwon, Joong-Ho,Lee, Sang-Han,Lee, Jin-Man 한국식품영양과학회 2007 한국식품영양과학회지 Vol.36 No.9
마늘은 향신료로서 역할뿐만 아니라 생체기능을 조절하는 유용한 성분을 함유하고 있어서 건강 유지에 유익한 식품으로 알려져 있다. 따라서 본 연구에서는 마늘을 가공식품 소재로 활용하기 위하여 중심합성계획에 의한 반응표면분석법을 이용하여 마늘의 유효성분 함량을 다량 추출할 수 있는 최적추출조건을 모니터링하였다. Alliin 함량은 추출온도 $60.86^{\circ}C$, 추출시간 3.77 hr, 에탄올 농도 50.68%에서 최적이었고, allicin은 추출온도 $65.11^{\circ}C$, 추출시간 2.79 hr, 에탄올 농도 13.62%에서 최대값 8.23 mg%로 예측되었다. 총 페놀성 화합물 함량은 최대값 16.72 mg%로 예측되었으며 이 때 추출조건은 추출온도 $93.35^{\circ}C$, 추출시간 3.22 hr 및 에탄올 농도 10.38%로 나타났고, 전자공여능은 추출온도 $82.64^{\circ}C$, 추출시간 2.88 hr 및 에탄올 농도 0.43%에서 최적이었다. pH 1.2 및 3.0 아질산염 소거능은 추출온도 $79.77^{\circ}C$, $76.46^{\circ}C$, 추출시간 3.22 hr, 3.31 hr 및 에탄올농도 10.38%, 1.12%일 때 최대값은 94.85%, 63.22%이었다. This study was carried out to find the optimal conditions for the extraction of the effective ingredients based on central composite by monitoring the extraction characteristics of each ingredient with a response surface methodology. The optimal condition for the effective component alliin was extract temperature of $60.86^{\circ}C$, extract time of 3.77 hr, and ethanol concentration of 50.68%, and that for allicin was $65.11^{\circ}C$, 2.79 hr, and 13.62%, respectively, with the maximum extraction of 16.72 mg%. The maximum value of extracted total phenolics was 16.72 mg%, the optimal condition for electron donating ability was $93.35^{\circ}C$, 3.22 hr and 10.38%. The optimal conditions for pH 1.2 and 3.0 nitrite-scavenging ability was extract temperature of $79.77^{\circ}C$ and $76.46^{\circ}C$, extract time of 3.22 hr and 3.31 hr, and the ethanol concentration of 10.38% and 1.12%, respectively. With this optimal condition, the obtained maximum values for nitrite-scavenging activities at pH 1.2 and 3.0 were 94.85% and 63.22%, respectively.
알로에 베라 유래 식이섬유의 In Vitro 및 In Vivo 생리기능 특성
백진홍,차태양,허진철,이상한,이신영 한국산업식품공학회 2010 산업 식품공학 Vol.14 No.2
A fiber fraction (Aloe cellulose), the by-product obtained from Aloe vera gel processing was freeze dried and investigated for in vitro glucose/ bile acid retarding effects of powdered sample (100 mesh) comparing with commercial α-cellulose as a reference sample. We also examined the effectiveness of physiological functionality such as the antiobesity and anti-constipation on Sprague-Dawley (SD) rat. The Aloe cellulose powders during in vitro dialysis experiment for 2 hours exhibited the glucose and bile acid retarding index of 20.32-35.2% and 53.13-28.30%, respectively. Especially, freeze dried aloe cellulose showed the 2.5 and 1.2-6 times higher effect on in vitro glucose and bile acid retardation than those of α-cellulose. These relatively good retarding effects on glucose and bile acid diffusion suggest a potential of preventing from diabetes and arteriosclerosis of some extent. Also, the results from animal experiments on SD rats fed a high-fat diet for 4 weeks suggested that Aloe cellulose might be used as a novel dietary fiber showing an effective anti-obesity and anti-constipation effect.
김성호,송경식,송방호,김종국,김인호,차태양,강복희,이진형,김종명,이진만 한국응용생명화학회 2005 Journal of Applied Biological Chemistry (J. Appl. Vol.48 No.3
Response surface methodology was used to investigate clarification characteristics (turbidity, brown color, soluble solid, total sugar and reducing sugar) of enzyme in pomegranate extract. Enzyme was treated at 16 conditions including independent variables of temperature (35~55oC), time (30~70 min) and concentration (0.02~0.10%) based on central composition design. Turbidity was decreased with increase of enzyme concentration, and the minimum value of turbidity was 0.04 (OD) when 0.08% enzyme was treated at 37.99oC for 60.90 min. Total sugar was affected by all treatment conditions and the maximum value was 8.37% when 0.03% enzyme was treated at 39.28oC for 42.04 min. Reducing sugar and soluble solid were largely affected by enzyme concentration, and the maximum value of reducing sugar was 7.22% when 0.02% enzyme was treated at 42.96oC for 46.21 min. The maximum value of soluble solid was 8.13% when 0.02% enzyme was treated at 46.91oC for 42.13 min. 효소처리조건에 따른 석류추출액의 청징화특성을 조사하기 위하여 효소반응온도(35~55oC), 시간(30~70분) 및 농도(0.02~0.10%)를 중심합성계획법에 의한 16개 구간으로 설정하여 탁도, 갈색도, 가용성 고형분 함량, 총당 및 환원당 함량 등을 반응 표면분석법으로 모니터링하였다. 탁도는 주로 효소반응시간에 의하여 영향을 받고 있었으며, 처리온도 37.99oC, 처리시간 60.90분, 효소농도 0.08%일 때 탁도의 최소값이 0.04(O.D)로 나타났다. 갈색도는 효소농도에 가장 많은 영향을 받는 것으로 나타났으며, 처리온도와 처리시간에 대해서는 거의 영향을 받지않는 것으로 나타났으며, 총당의 함량은 처리온도, 처리시간, 효소농도에 대해 모두 영향을 받고 있었으며, 처리온도 39.28oC,처리시간 42.04분, 효소농도 0.03%일 때 최대값 8.37%을 나타내었다. 환원당 및 고형분 함량의 경우 효소농도에 가장 많은 영향을 받고 있었으며, 환원당은 처리온도 42.96oC, 처리시간 46.21분, 효소농도 0.02%일 때 최대값 7.22%를 나타내었고, 고형분 함량은 처리온도 46.91oC, 처리시간 42.13분, 효소농도 0.02%일 때 최대값 8.13%으로 나타났다. 각 변수에 대한 회귀식을 구한 후 탁도 및 갈색도의 최소값에 대한 최적효소처리조 건을 superimposing 한 결과 효소처리 조건은 온도 45~50oC,시간 50~60분 및 농도 0.06~0.08%이었다.
김성호,송경식,송방호,임순옥,김종국,김인호,강복희,차태양,이진형,김종명,이진만 한국응용생명화학회 2005 Journal of Applied Biological Chemistry (J. Appl. Vol.48 No.4
건강기능성식품의 원료로 이용되고 있는 석류의 주요성분에 대한 효율적인 이용을 위하여 반응표면분석에 의하여 각 성분의 열수 추출조건을 분석하여 최적 추출조건을 확립하였다. 주 요성분의 최적 추출조건 예측을 위하여 추출온도(60~100oC), 추출시간(1~5 hr)을 독립변수로 하여 중심합성계획에 의해 10구의 추출조건을 설정하였다. 각 추출물의 주요성분 함량 즉, chlorogenic acid, kaempferol, 17-α-estradiol 및 17-β-estradiol 함량을 측정하여 SAS program에 의해 회귀분석을 하여 각각의 특성을 분석하였다. 그 결과 chlorogenic acid, kaempferol 및 17-α-estradiol 함량은 주로 추출온도에 영향을 받는 것으로 나타났으며, 17-β-estradiol 함량은 추출시간에 영향을 받는 것으로 나타났다. 각 변수에 대한 회귀식을 도출하여 공정인자별 석류 추출물의 chlorogenic acid, kaempferol, 17-α-estradiol 및 17-β-estradiol 함량에 대한 최적 추출조건을 superimpose한 결과 추출온도 98~100oC, 추출시간 3~4 hr로 각각 예측되었다. The optimization of extraction conditions of phytoestrogen from pomegranate by hot water was conducted by analyzing the extraction characteristics. The purpose of this study was effective utilization of bioactive components of pomegranate, and the analyzing was performed with response surface methodology (RSM). This study established 10 sections based on the central composite design with the independent variables of extraction temperature (60, 70, 80, 90, 100oC) and extraction time (1, 2, 3, 4, 5 hr) to predict the optimal conditions for extraction of the effective components. The dependent variables were measured for extracted materials, those were, the major components such as chlorogenic acid, kaempferol, 17-α-estradiol and 17-β-estradiol content, and regression analysis was performed by SAS program, and optimal conditions for each characteristics were predicted, and the characteristics of extraction were analyzed by response surface methodology. It was found that chlorogenic acid, kaempferol, and 17-α-estradiol content were greatly affected by extraction temperature. However, 17-β-estradiol content was affected significantly by extraction time. Regression formulas for each variable were elicited from this study, and the chlorogenic acid, kaempferol, 17-α-estradiol and 17-β-estradiol content depending on response surface methodology factor were superimposed. It was shown that optimal temperature and extraction time were 98~100oC and 3~5 hrs, respectively