Abstract
Chinonin, a kind of xanthone compound with four phenolic hydroxyls, is extracted from Anemarrhena Asphodeloides Bunge, a sort of traditional Chinese medicine. ESR and spin trapping techniques are used to study its scavenging effects on -OH, O{sub 2}{sup -} and {sup 1}O{sub 2} in homogeneous and heterogeneous system. It is found that chinonin possesses fairly strong scavenging activity on -OH and {sup 1}O{sub 2}, which is better that that of V{sub E}. Through kinetic method, quenching rate constant of chinonin on {sup 1}O{sub 2} is determined as 7.2 x 10{sup 8} mol{sup -1}Ls{sup -1}.
Hongyu, Zhang;
Fuyuan, Wang;
Zhiyi, Zhang;
Meifen, Li;
[1]
Ming, Li
[2]
- Chinese Academy of Sciences, Beijing (China). Inst. of Biophysics
- Shenzhen Yinhu Nanfang Pharmaceutical Factory, Shenzhen (China)
Citation Formats
Hongyu, Zhang, Fuyuan, Wang, Zhiyi, Zhang, Meifen, Li, and Ming, Li.
Studies of scavenging effects on active oxygens of chinonin.
China: N. p.,
1997.
Web.
Hongyu, Zhang, Fuyuan, Wang, Zhiyi, Zhang, Meifen, Li, & Ming, Li.
Studies of scavenging effects on active oxygens of chinonin.
China.
Hongyu, Zhang, Fuyuan, Wang, Zhiyi, Zhang, Meifen, Li, and Ming, Li.
1997.
"Studies of scavenging effects on active oxygens of chinonin."
China.
@misc{etde_579204,
title = {Studies of scavenging effects on active oxygens of chinonin}
author = {Hongyu, Zhang, Fuyuan, Wang, Zhiyi, Zhang, Meifen, Li, and Ming, Li}
abstractNote = {Chinonin, a kind of xanthone compound with four phenolic hydroxyls, is extracted from Anemarrhena Asphodeloides Bunge, a sort of traditional Chinese medicine. ESR and spin trapping techniques are used to study its scavenging effects on -OH, O{sub 2}{sup -} and {sup 1}O{sub 2} in homogeneous and heterogeneous system. It is found that chinonin possesses fairly strong scavenging activity on -OH and {sup 1}O{sub 2}, which is better that that of V{sub E}. Through kinetic method, quenching rate constant of chinonin on {sup 1}O{sub 2} is determined as 7.2 x 10{sup 8} mol{sup -1}Ls{sup -1}.}
journal = []
issue = {4}
volume = {15}
journal type = {AC}
place = {China}
year = {1997}
month = {Nov}
}
title = {Studies of scavenging effects on active oxygens of chinonin}
author = {Hongyu, Zhang, Fuyuan, Wang, Zhiyi, Zhang, Meifen, Li, and Ming, Li}
abstractNote = {Chinonin, a kind of xanthone compound with four phenolic hydroxyls, is extracted from Anemarrhena Asphodeloides Bunge, a sort of traditional Chinese medicine. ESR and spin trapping techniques are used to study its scavenging effects on -OH, O{sub 2}{sup -} and {sup 1}O{sub 2} in homogeneous and heterogeneous system. It is found that chinonin possesses fairly strong scavenging activity on -OH and {sup 1}O{sub 2}, which is better that that of V{sub E}. Through kinetic method, quenching rate constant of chinonin on {sup 1}O{sub 2} is determined as 7.2 x 10{sup 8} mol{sup -1}Ls{sup -1}.}
journal = []
issue = {4}
volume = {15}
journal type = {AC}
place = {China}
year = {1997}
month = {Nov}
}