[Detection of antioxidative capacity of bamboo leaf extract by scavenging hydroxyl free radical].
By studying on absorption spectrum of red compound coming from the reaction system of Fe2+ and 1, 10-phenanthroline and the capacity of antioxidant TBHQ and bamboo leaf extract for scavenging hydroxyl free radical, some results were drawn as follows: the determining wavelength of bamboo leaf extract for scavenging hydroxyl free radical by spectrophotometric method is 509.1 nm, and IC50 (the value of antioxidant concentration at scavenging half of hydroxyl free radical)was used as the index to evaluate scavenging capacity. The determined IC50 values were TBHQ (0.040), M20 (0.378), M40 (0.323), M60 (0.334), and bamboo leaf extract could be used as natural antioxidant.
Guo
Xue-Feng
XF
State Forestry Administration Key Open Laboratory on Bamboo and Rattan Science and Technology, International Centre for Bamboo and Ratten, Beijing 100102, China. gxf71622@icbr.ac.cn
Yue
Yong-De
YD
Meng
Zhi-Fen
ZF
Tang
Feng
F
Wang
Jin
J
Yao
Xi
X
Xun
Hang
H
Sun
Jia
J
D031723:Bambusa / Q000737:chemistry*; D016166:Free Radical Scavengers / Q000737:chemistry*; D017665:Hydroxyl Radical; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves; D013053:Spectrophotometry
D016166:Free Radical Scavengers; D010936:Plant Extracts; D017665:Hydroxyl Radical