화학공학소재연구정보센터
Process Biochemistry, Vol.49, No.9, 1457-1463, 2014
Pancreatic alpha-amylase and lipase inhibitory activity of polyphenolic compounds present in the extract of black chokeberry (Aronia melanocarpa L.)
The aim of this study was to investigate the effect of black chokeberry (Aronia melanoccopa L.) extract on the activity of porcine pancreatic alpha-amylase and lipase. An in vitro study demonstrated that three kinds of chokeberry extracts: methanolic, water and acetic caused inhibition of alpha-amylase and lipase. The methanolic and acetic extracts exhibited the highest inhibitory activities against alpha-amylase with the IC50 values of 10.31 +/- 0.04 mg/ml and pancreatic lipase 83.45 +/- 0.50 mg/ml, respectively. In order to identify the compounds which may be the potential inhibitors of alpha-amylase and lipase, chokeberry extract was analyzed by preparative reverse phase chromatography and high performance liquid chromatography-mass spectrometry (HPLC-MS). These studies have shown that both anthocyanins and phenolic acids are compounds which inhibit the ability of the reaction catalyzed by alpha-amylase and lipase. The most effective inhibitor of pancreatic alpha-amylase was chlorogenic acid (IC50= 0.57 +/- 0.16 mg/ml). In the group of anthocyanins the most potent inhibitor of alpha-amylase was cyanidin-3-glucoside (IC50= 1.74 +/- 0.04 mg/ml), which also showed an ability to inhibit the reaction catalyzed by pancreatic lipase(IC50 = 1.17 +/- 0.05 mg/ml). These findings seem to indicate the use of chokeberry as a functional food component, contributing to its anti-obesity activities. (C) 2014 Elsevier Ltd. All rights reserved.