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Antioxidative Activity and Safety of 50% Ethanolic Red Bean Extract ( Phaseolus radiatus L. var. Aurea )
Author(s) -
Chou S.T.,
Chao W.W.,
Chung Y.C.
Publication year - 2003
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.2003.tb14108.x
Subject(s) - phaseolus , chemistry , traditional medicine , food science , toxicology , botany , biology , medicine
This study evaluated the antioxidative activities of 50% ethanolic extract from red bean ( Phaseolus radiatus L. var. Aurea ). The antioxidative activities, including α,α‐diphenyl‐β‐picryl‐hydrazyl (DPPH) radicals scavenging effects, Fe 2+ ‐chelating ability, and reducing power, were studied in vitro. The antioxidative activity was found to increase with the concentration of the extract to a certain extent and then level off as the concentration further increased. Compared with commercial antioxidants, the red bean extract showed less scavenging effect on the DPPH radical and less reducing power than α‐Tocopherol and BHT, but better Fe 2+ ‐chelating ability. No mutagenic effect toward any tester strains was found in the 50% ethanolic extract of red bean.