Abstract
본 연구를 통해 보관 조건에 따른 사물탕 전탕액의 유효활성 물질 및 안정성과 관련된 특성들의 경시적 변화를 관찰하였다. 사물탕 전탕액의 보관온도(냉동 조건, 냉장 조건, 상온 암 조건, 상온 빛 조건, 고온 조건)를 달리하여, 각각을 0, 15, 30, 90, 180일간 보관하였다. 사물탕 전탕액의 경시적 변화로는 육안적 관찰, 산도, 흡광도, high performance liquid chromatography (HPLC) 분석, 생리활성(tyrosinase 저해 활성), 세균학적 검사 등을 관찰하였다. 그 결과, 사물탕 전탕액의 다양한 보관 기간과 온도에서, 육안적 검사, 산도, 흡광도, HPLC분석, 생리활성에서 경시적으로 큰 변화가 없었으며, 세균학적 검사를 통해서는 세균이 검출되지 않았다. 그러나 그 변화의 차이는 크지 않았지만, 사물탕 전탕액의 보관조건이 악화될수록, 보관기간이 증가할수록 미세한 변화가 관찰되었다. 따라서 6개월 이상 장기간 보관 할 경우, 사물탕 전탕액을 상온 암 조건, 상온 빛 조건, 고온 조건에서 보다 냉동 혹은 냉장 조건이나 가능하면 어두운 곳에서 보관하는 것이 유효성분 및 활성의 변화나 전탕액의 변질을 방지하기 위한 보관법으로 판단되었다. Consumer interest in the stability of medicinal herb extracts during storage has increased. Although the advent of new technologies has improved preservation conditions, increasing the storage time, there are few studies on the preservation of herb extracts. The purpose of this study was to perform microscopic observations of Samul-tang decoctions under various preservation conditions. The storage temperature (a high temperature, room temperature, with or without light, refrigeration, or cryopreservation) and storage time (0, 15, 30, 90, and 180 days) were given to each condition Macroscopic morphology, pH, UV absorption, HPLC, and bacteriological studies were performed to determine microscopic changes in Samul-tang decoctions. The biological activity (tyrosinase inhibition) of the Samul-tang decoctions was also examined. There were no major changes in the indicated observation items when the extracts were stored in each condition. However, at higher storage temperatures and longer storage times, microscopic changes increased, although no bacteria were detected. Furthermore, the higher the storage temperature was and the longer the storage time was, the bigger the change was, despite of minor microscopic changes. Therefore, to maintain the stability of herbal extracts during storage, it is recommended to keep the Samul-tang decoction in the preservation condition of refrigeration and cryopreservation or without light rather than high temperature and room temperature as possible.
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