Composition of native Australian herbs polyphenolic-rich fractions and in vitro inhibitory activities against key enzymes relevant to metabolic syndrome

► Native Australian herbs identified as new sources of ellagic acid and derivatives. ► Identified significant inhibitory effect of Australian herbs against α-glucosidase. ► Tasmannia pepper leaf exhibited pronounced inhibitory activity towards lipase. ► All herbs showed some inhibitory effect towards angiotensin converting enzyme. ► The herbs have a potential to be utilised in functional food/nutraceuticals.