In vitro antioxidant activities and neuronal cell protective effects of the ethyl acetate fraction of a new green extract (Brassica oleracea var. botytis aut italiana) against H 2 O 2 -induced oxidative stress were investigated, and its industrial feasibility was evaluated. The extract showed the highest contents of total phenolic compounds among other extracts as well as a 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) diammonium salt (ABTS) radical scavenging activity and

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... e (MDA) inhibitory effect. This extract not only decreased the intracellular reactive oxygen (ROS) level but also protected the neuronal cells against H 2 O 2 -induced oxidative stress. On analysis using gas chromatograph-mass spectrometry, the following phenolic compounds were identified: quinic acid, ferulic acid, and caffeic acid. Collectively, these results suggest that this new green extract could contain functional substances that would help prevent the risk of neurodegenerative disease.