• 산업식품공학
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• 제14권2호
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• pp.183-187
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• 2010

본 연구에서는 강원도에 자생하는 오가피(Acanthopanax sessilifloru) 열매(Ogaza)를 80% MeOH 추출하고, 기능성 식품소재로써의 기능성을 규명하였다. 오가자 추출물의 페놀성 화합물은 오가자 1 g 당 56.1${\pm}$5.2 mg의 gallic acid로 나타났다. 오가자 추출물 0.25, 0.5, 1, 2 mg/mL은 각각 vitamin C 34.0, 73.0, 194.3, 339.7 $\mu g$/mL에 해당하는 항산화 효과를 보였다. 오가자 추출물 1 과 2 mg/mL의 농도에서 LPS로 유도한 TNF-$\alpha$와 IL-6의 생성량을 각각 22${\pm}$2, 19${\pm}$6% 그리고 18${\pm}$2, 24${\pm}$3% 억제하였다. 또한, 자외선 조사에 의해 증가한 COX-2 luciferase 활성이 오가자 추출물 (0.25, 0.5, 1, 2 mg/mL)에 의해 각각 80${\pm}$1, 83.${\pm}$7, 96${\pm}$4, 98${\pm}$2% 억제됨을 확인하였다. 본 연구를 통해 잎 이나 뿌리에 비해 연구 및 활용도가 낮았던 오가피 열매의 항산화활성 및 항염증 효능을 규명함으로써, 오가자가 고부가가치 기능성 식품소재로 활용 될 수 있는 가능성을 제시하였다.

• 치위생과학회지
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• 제18권3호
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• pp.147-154
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• 2018

This study aimed to evaluate the antimicrobial effects of Acanthopanax sessiliflorum fruit (ASF; Ogaza) extracts on Streptococcus mutans and Streptococcus sobrinus, which are agents that cause dental caries, and on Streptococcus mitis and Streptococcus salivarius, the microbial flora of the oral cavity. The ASF extracts obtained using 70% ethanol were fractionated in the order of ethyl acetate and n-Butanol, concentrated under reduced pressure, and lyophilized to give powdery solvent extracts. The antimicrobial activity of ASF extracts from each solvent was examined using the disk diffusion method. As a result, only those extracts obtained using an ethyl acetate solvent showed antimicrobial activity. These extracts were selected, and the minimum inhibitory concentration was measured by disk diffusion method at various extract concentrations. Results showed a minimum inhibitory concentration of 32 mg/ml. The viable cell count was measured to confirm the minimum bactericidal concentration. Results showed a minimum bactericidal concentration of 64 mg/ml. In the cytotoxicity test using normal human dermal fibroblast cells, the absorbance value of the test group was similar to that of the control group at 0.64, 1.28, and 6.4 mg/ml. The bacteria and their colonies were examined using a scanning electron microscope. Boundaries between the antimicrobial activity region and non-antimicrobial activity region were observed around the paper disk, which was immersed in the extract with 32 mg/ml concentration. Bacterial colonization was not observed in the area with antimicrobial activity. This finding suggests that ASF extracts can inhibit the growth of some microorganisms in the oral cavity, in addition to the effects of these extracts known to date. In particular, ASF extracts may be used as a preparation for preventing dental caries by adding the extract to the toothpaste or oral mouthwash.