A NEW TRITERPENOID SAPONIN (CHROMOSAPONIN-I) WITH A REDUCING POWER

被引：4

作者：

TSUJINO, Y

TSURUMI, S

OSAKAI, T

SAITO, A

机构：

[1] KOBE UNIV, GRAD SCH SCI & TECHNOL, NADA KU, KOBE 657, JAPAN

[2] KOBE UNIV, FAC SCI, DEPT CHEM, NADA KU, KOBE 657, JAPAN

来源：

CHEMISTRY LETTERS | 1994年 / 04期

关键词：

D O I：

10.1246/cl.1994.711

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

gamma-Pyronyl-triterpenoid saponin (chromosaponin I; CSI) isolated from pea is strongly adsorbed at a glassy-carbon electrode, and gives an irreversible oxidation wave at 0.4 V vs. Ag/AgCl. The gamma-pyronyl moiety is responsible for the electroactivity. CSI can reduce 1,4-benzoquinone, some of its derivatives and also cytochrome c. From comparison with other reductants, the formal redox potential of CSI was estimated to be 0.3-0.4 V vs. NHE (pH 7.0).

引用

页码：711 / 714

页数：4

共 7 条

[1]

BOND AM, 1980, MODERN POLAROGRAPHIC, P192

[2] THE PECKING ORDER OF FREE-RADICALS AND ANTIOXIDANTS - LIPID-PEROXIDATION, ALPHA-TOCOPHEROL, AND ASCORBATE [J].