Fig. 1From: Extract of Bletilla formosana callus elevates cellular antioxidative activity via Nrf2/HO-1 signaling pathway and inhibits melanogenesis in zebrafishCallus induction, growth, and extraction of B. formosana. A The seeds of the current year’s flowering were plated for callus induction. B Callus with stable growth and loose texture. C Appearance of the extract through SFE-CO2 from B. formosana callus. Scale bar = 1 cmBack to article page