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천문동 추출물의 호흡기 세균에 대한 항균활성 및 항산화
정민기 ( Min Gi Jung ),김수인 ( Su In Kim ),정해진 ( Hae Jin Jeong ),이충렬 ( Chung Yeol Lee ),손홍주 ( Hong Joo Son ),황대연 ( Dae Youn Hwang ),이희섭 ( Hee Sup Lee ),김동섭 ( Dong Seob Kim ) 한국미생물생명공학회(구 한국산업미생물학회) 2015 한국미생물·생명공학회지 Vol.43 No.4
본 연구에서는 민간에서 호흡기 질환에 효능이 있다고 알려진 천문동 뿌리를 재료로 하고 추출물을 각각 달리하여 호흡기 세균에 대한 항균작용 및 항산화를 살펴보았다. 여러가지 추출용매 중 에틸 아세테이트 추출물에서만 호흡기 세균에 대한 항균활성이 나타났으며 최소저해농도(MIC)는 S. aureus와 E. coli는 100 mg/ml, S. epidermidis는 75 mg/ml, P. aeruginosa는 25 mg/ml로 각각 측정되어 P. aeruginosa 에 대한 항균활성이 가장 높았다. 항균 활성을 나타낸 에틸 아세테이트 추출물의 항산화 활성을 알아보기 위해 Lascorbic acid를 대조구로 하여 DPPH radical 소거활성을 측정한 결과는 IC50은 각각 0.17, 3.83 mg/ml로 나타났다. 또한 총 폴리페놀 및 플라보노이드 함량은 측정한 결과 각각 14 ± 0.7, 0.50 ± 0.13 mg/g을 나타내었다. 본 연구는 천문동연구의 초석으로서 향후에 생리활성 효과를 증진시킬 수 있는 연구가 더 진행된다면 건강기능식품소재로서 가능성이 있다고 생각된다. This study was aimed at determining the antioxidant and antimicrobial effects of solvent extracts from Asparagus cochinchinensis. The Asparagus cochinchinensis was extracted with water, methanol, ethanol, n-hexane, dichloromethane, ethyl acetate, and ether. The antimicrobial activity of these extracts was determined by modified well diffusion methods against 4 species of respiratory disease bacteria (Staphylococcus aureus, Escherichia coli, Staphylococcus epidermidis, and Pseudomonas aeruginosa). In addition, the amount of total polyphenol and flavonoid content, and antioxidant activity was evaluated. Ethyl acetate extract of A. cochinchinensis exhibited higher antimicrobial activity against tested microorganisms than water, methanol, ethanol, n-hexane, dichloromethane, and ether extracts. For antioxidant activity, the ethyl acetate extract of A. cochinchinensis exhibited a notable effect on the scavenging of superoxide against DPPH (IC50 = 3.81 mg/ml). Finally, the total polyphenol and flavonoid contents were 14 ± 0.7 mg/g, and 0.50 ± 0.13 mg/g, respectively. These results can be regarded as basic research into A. cochinchinensis for the prevention of respiratory diseases. The results indicate that A. cochinchinensis may be utilized as a nutraceutical for respiratory diseases when the physiologically active substances of A. cochinchinensis are increased by further study.
골반압박 벨트 유무에 따른 스위스 볼 운동이 건강한 성인의 허리 근력과 유연성 그리고 균형능력에 미치는 영향
김수영,홍정연,정민기,강은영,차유리,Kim, Su Young,Hong, Jeong Yeon,Jeong, Min Gi,Kang, Eun Young,Cha, Yu Ri 대한물리치료과학회 2021 대한물리치료과학회지 Vol.28 No.1
Background: This study is goal to explore the effects of swiss ball exercise on muscular strength, flexibility, and balance in healthy adults with and without pelvic compression belts. Design: Randomized Controlled Trial. Methods: This study randomly divided the experimental and control groups in 24 healthy adults wearing pelvic compression belts, and they conducted Swiss ball exercise programs, 5 times for 40 minutes a week during 3 weeks in conclusion 15 times. Results: The results showed that the experimental groups have increased significantly in muscle strength and flexibility (p<.05). Conclusion: This study showed that pelvic compression belts and Swiss ball exercise programs will help health improvements such as muscle strength, flexibility, and balance in normal adults, and it is also thought to be worth applying to patients with back pain.