The project of the present invention provides a kind of method of plant extract of the manufacture with fragrant and mellow fragrance or maturation perfume in what.The present invention provides a kind of manufacturing method by the plant extract handled through ferment and the method that manufactures the plant extract with fragrant and mellow fragrance or maturation perfume, manufacturer's genealogy of law of the plant extract through ferment processing carries out lipase treatment to the plant extract extracted through vapor to add alcohol Hou into the plant extract through vapor extraction for obtaining plant material progress steam distillation in a manner of determining alcohol becomes 0.1 mass of mass % ~ 50 %.本發明之課題在於提供一種製造具有芳醇之香味或熟成香之植物萃取物之方法。本發明提供一種藉由經酵素處理之植物萃取物之製造方法而製造具有芳醇之香味或熟成香之植物萃取物的方法，該經酵素處理之植物萃取物之製造方法係以醇濃度成為0.1質量%~50質量%之方式向將植物原料進行水蒸氣蒸餾而獲得之經水蒸氣萃取之植物萃取物中添加醇後，對經水蒸氣萃取之植物萃取物進行脂肪酶處理。
