| abstract |
PROBLEM TO BE SOLVED: To provide an antioxidant exhibiting an excellent antioxidant action. SOLUTION: An extract from at least one plant selected from the group consisting of Blechnum capense, Blechnum discorer, Pteridium esculentum and Phymatosorus diversifolius from the group of Phytosorus diversifolius. It is an antioxidant as an active ingredient. [Selection figure] None |