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Hydroxycinnamic Acid 첨가와 BGsome 포집에 의한 Ascorbic Acid의 안정화
전세은 ( Se Eun Jeon ),김석중 ( Seok Joong Kim ),진병석 ( Byung Suk Jin ) 한국유화학회 2012 한국응용과학기술학회지 Vol.29 No.2
hydroxycinnamic acid인 ferulic acid와 caffeic acid는 강력한 식물성 항산화제 이다. DPPH 수용액에서 이들의 자유라디칼 소거능과 높은 온도, 금속 이온과 같은 산화촉진 요인에 대한 화학적 안정성 등을 살펴보았다. 아스코르빅 산의 안정성 향상을 위해 ferulic acid와 caffeic acid를 아스코르빅산 수용액에 첨가하였다. 아스코르빅 산의 안정성 향상은 시간경과에 따른 SC50 값의 변화로부터 확인하였다. 아스코르빅 산을 ferulic acid 또는 caffeic acid와 조합하여 BGsome 안에 포집시켜본 결과, 아스코르빅 산의 안정성이 순수한 용액 상태로 있을 때에 비해 크게 향상되었다. Ferulic and caffeic acids are hydroxycinnamic acid derivatives, which are potent plant antioxidants. Their free radical scavenging abilities in aqueous solution exposed to DPPH radical, and chemical stabilities against oxidative stress like high temperature and metal ion, were evaluated. To improve the stability of ascorbic acid solution, ferulic acid or caffeic acid was incorporated into ascorbic acid solution. Stability improvement of ascorbic acid was verified through SC50 value change according to storage time. Ascorbic acid in combination with ferulic acid or caffeic acid was encapsulated with high efficiency inside BGsome. In this form, its stability was remarkably enhanced compared to that in free aqueous solution.
흉강 내시경을 이용한 식도 중봉 낭종 수술 치험 -1례-
박성용,김태훈,이두연,김은영,전세은,조상호,Park, Seong-Yong,Kim, Tae-Hoon,Lee, Doo-Yun,Kim, Eun-Young,Jeon, Se-Eun,Cho, Sang-Ho 대한기관식도과학회 2007 大韓氣管食道科學會誌 Vol.13 No.1
Esophageal duplication cyst is very rare mediastinal tumor which is congenital lesion of the esophagus. Esophageal duplication cyst could be excised with video assisted thoracoscopic surgery(VATS) if it is relatively small, cystic lesion and not adhered severely to the surrounding tissues such as lung, trachea, bronchus, esophagus and pleura. We report a case of an esophageal duplication cyst which was located in the right thoracic cavity below carina and could be excised completely and repaired by interrupted suture with 3.0 black silk. The patient was discharged at 10 days after operation with good condition and has been in uneventful condition 2 months after operation.