Antioxidant activity of 24 ferulic acid related compounds together with 6 gallic acid related
compounds was evaluated using several different physical systems as well as their radical …

Ginger (Zingiber officinale Roscoe) shows an antioxidant activity, and we have been engaging
to determine the structures of more than 50 antioxidants isolated from the rhizomes of …

Constituents of the fruit of Amomum tsao-ko were investigated following a preliminary screening
of the antioxidant activity of several extracts of the fruit of this plant that showed that the …

Seventeen compounds were isolated from the n-butanol soluble fraction of the leaves of
Peucedanum japonicum Thunb. On the basis of MS and various NMR spectroscopic techniques…

In the course of our study on the isolation and structure determination of constituents in
tropical plants, we focused on Peucedanum japonicum Thunb., belonging to the family …

Glutamate excitotoxicity is one of the major events that takes place during various neurotoxic
injuries such as brain ischemia. We prepared grape seed extracts, from two different …

Background Resveratrol is a bioactive polyphenol enriched in red wine that exhibits many
beneficial health effects via multiple mechanisms. However, it is unclear whether resveratrol is …

Grape polyphenols are known to protect neurons against oxidative stress. We used grape
seed extract (GSE) from “Koshu” grapes (Vitis vinifera) containing a variety of polyphenols, …

The ethyl acetate-soluble part of allspice, berries of Pimenta dioica, showed strong
antioxidant activity and radical-scavenging activity against 1, 1-diphenyl-2-picrylhydrazyl (DPPH) …

Chloroethenes are widely used as solvent in the metal industry and the dry cleaning industry,
but their spillage into soil and groundwater due to improper handling has negatively …