Showing papers on "Isovitexin published in 1998"
TL;DR: A new apigenin glycoside, isovitexin 6″-O-glucoside has been isolated from the leaves A. petiolata and identified as a feeding deterrent for P. napi fourth instar larvae.
66 citations
TL;DR: Three new saponarin analogs, 6'''-sinapoylsaponarin, 6 '''-feruloysaponarin and 4'''-glucosyl-6'''-Sinapoyl-saponarin were isolated together with four known compounds from young green barley (Hordeum vulgare var. nudum) leaves.
Abstract: Three new saponarin analogs, 6'''-sinapoylsaponarin, 6'''-feruloysaponarin and 4'-glucosyl-6'''-sinapoyl-saponarin were isolated together with four known compounds from young green barley (Hordeum vulgare var. nudum) leaves. Their anti-oxidative effects towards superoxide, photo-oxidation of vitamins and the 1, 1-diphenyl-2-picrylhydrazyl radical were tested. The superoxide-scavenging activity depended on the number of free hydroxy groups. In contrast, the inhibition of vitamin oxidation seemed to be due to the flavone skeleton. In addition, the sinapoyl moiety seemed to be important for radical-scavenging activity.
38 citations
TL;DR: A new flavone C -glucoside: 2″- O -caffeoylorientin was isolated from the leaves of Vitex polygama and identified by spectroscopic methods as mentioned in this paper.
24 citations