Browse > Article
http://dx.doi.org/10.5352/JLS.2015.25.10.1124

Effect of Preservation Conditions on the Stability of Samul-tang Decoctions  

Park, In Hwa (Department of Korean Medicine, Pusan National University School of Korean Medicine)
Kim, Yeon Hak (Department of Korean Medicine, Pusan National University School of Korean Medicine)
Choi, Seong Hwan (Department of Korean Medicine, Pusan National University School of Korean Medicine)
Yu, Sun Nyoung (Department of Microbiology and Immunology, Pusan National University School of Medicine)
Kim, Sang Hun (Department of Microbiology and Immunology, Pusan National University School of Medicine)
Ahn, Soon Cheol (Department of Microbiology and Immunology, Pusan National University School of Medicine)
Cho, Su In (Division of Pharmacology, Pusan National University School of Korean Medicine)
Lee, In (Department of Korean Internal Medicine, Korean Medicine Hospital of Pusan National University)
Publication Information
Journal of Life Science / v.25, no.10, 2015 , pp. 1124-1131 More about this Journal
Abstract
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.
Keywords
Preservation condition; Samul-tang decoction; storage time; storage temperature; stability;
Citations & Related Records
연도 인용수 순위
  • Reference