Negative pressure cavitation extraction and antioxidant activity of biochanin A and genistein from the leaves of Dalbergia odorifera T. Chen

► Research on the Dalbergia odorifera leaves is scanty, so our research is meaningful. ► The contents of genistein and biochanin A were high in D. odorifera leaves. ► Negative-pressure cavitation extraction is a cheap and energy efficient method.