Ozone as eustress for enhancing secondary metabolites and bioactive properties in Salvia officinalis

•Ozone triggers the accumulation of phenolic compounds in Salvia officinalis.•Ozone decreases the emission of monoterpenes, while increases the one of sesquiterpenes.•Ozone increases the antioxidant properties of Salvia officinalis products.•Ozone is a potential biotechnological tool to improve the quality of plant extracts.