Effects of Gamma Irradiation on Color Changes and Antioxidative Activities of Caesalpinia sappan L.
2007
Kwon, H.J. (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea) | Jung, U.H. (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea) | Park, H.R. (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea) | Shin, D.H. (Chonbuk National University, Jeonju, Republic of Korea) | Jo, S.K. (Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea), E-mail: [email protected]
Caesalpinia sappan L. is an indeciduous tree distributed in China, India, Miyanmar and Vietnam. Its heartwood has long been used in oriental folk medicines to treat diseases. In this study, antioxidative activities of Caesalpinia sappan L. and the effect of gamma irradiation on its chemical and biological properties were investigated. The ethyl acetate fraction (EtOAc fr.) of Caesalpinia sappan L. was irradiated with 100 kGy of gamma ray. The dark red color of EtOAc fr. was significantly (p less than 0.05) removed by irradiation (Hunter L and b values increased and a value decreased).
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