Chemiluminescence of soybean saponins in the presence of active oxygen species
1996; Elsevier BV; Volume: 116; Issue: 1 Linguagem: Inglês
10.1016/0168-9452(96)04375-0
ISSN1873-2259
AutoresYumiko Yoshiki, Masaya Kinumi, Takashi Kahara, Kazuyoshi Ōkubo,
Tópico(s)Antioxidant Activity and Oxidative Stress
ResumoNatural active oxygen scavengers (Y; catalytic compounds) exhibit chemiluminescence (CL) in the presence of an X (active oxygen compounds) and a Z (receptive compounds). The CL derived from soyasaponins Ab and βg, major components of group A and DDMP saponins present at high level in the hypocotyl of soybean seeds, was compared with (−)-epigallocatechin (EGC) as the most effective Y and acetaldehyde (MeCHO) as the most effective Z in the presence of H2O2 as X. We have found that soyasaponin Ab and soyasaponin βg are Y equivalent to EGC and Z equivalent to MeCHO, respectively. In the presence of soyasaponin Ab as Y, CL of soyasaponin βg showed about 100-fold than that of MeCHO as Z. These results suggest that group A and DDMP saponins play an important role in the scavenging function of active oxygen.
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