|
KMID : 0613820050150050796
|
|
Journal of Life Science
2005 Volume.15 No. 5 p.796 ~ p.801
|
|
|
Characterization of Antioxidants Extracted from Leaves of Sanjook (Sasa boreails var. chiisanensis)
|
|
You Mi-Young
Park Sung-Hee
Kang Young-Mo
Yang Ji-Young
|
|
|
Abstract
|
|
|
For usage of natural antioxidants, sanjook (Sasa boreails var. chiisanensis) leaves were extracted with methanol and investigated about its antioxidative activities and stability. It showed that the antioxidant activity of methanol extracts from the leaves of sanjook depend on their concentration within range of 0.1 to 0.8 ㎎/ml. The methanol extracts from the leaves of sanjook represented 583 ㎍/ml for IC50 of DPPH radical scavenging ability, 800 ㎍/ml for IC_(50) of SOD-like activity and 38 ㎍/ml for IC50 of H₂O₂scavenging ability, while BHT, as a compared substance, was 271 ㎍/ml for IC50 of DPPH radical scavenging ability, 680 ㎍/ml for
IC_(50) of SOD-like activity and 30 ㎍/ml for IC50 of H₂O₂scavenging ability, respectively. The anti-autoxidation effect for methanol extracts from the leaves of sanjook was 55～60% within range of 0.1 to 0.8 ㎎/ml. The pH stability on methanol extracts from the leaves of sanjook was most stable at pH 6. The more acid or akali it became, the more unstable it turned. The thermostability on methanol extracts from the leaves of sanjook remained above 80% of their DPPH activity at range of 0℃ to 120℃.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|