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Antioxidative activity of hop bitter acids and their analogues
M Tagashira1, M Watanabe, N Uemitsu
1Central Research Laboratories, Asahi Breweries Ltd., Tokyo, Japan.
Bioscience, Biotechnology, and Biochemistry
|April 1, 1995
Abstract:
Hop bitter acids, humulones (1) and lupulones (2), were shown to have potent DPPH radical scavenging activity (RSA) and lipid peroxidation inhibitory activity (LIA). Furthermore, 5-acetyl lupulones (3) and 4-methyl lupulones (4) had more potent LIA than native lupulones but no RSA. This result indicates that the beta, beta'-triketone moiety of the lupulones has LIA.