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Applied Biological Chemistry
Fig. 3 | Applied Biological Chemistry

Fig. 3

From: Evaluation of antihypertensive polyphenols of barley (Hordeum vulgare L.) seedlings via their effects on angiotensin-converting enzyme (ACE) inhibition

Fig. 3Fig. 3

Determination of the inhibition type for compound 2–6, which showed the predominant ACE inhibition activity, and quercetin as a positive control. a, c, e, g, i, and k represent the Lineweaver–Burk plots for compounds 2–6 and quercetin on the ACE inhibition activity for the hydrolysis of 3HB-GGG in the presence of four different concentrations of compounds, 0, 25, 50, and 100 µM, a for lutonarin (2), c for saponarin (3), e for isoorientin (4), g for orientin (5), i for isovitexin (6) and k for quercetin, respectively. b, d, f, h, j, and l represent the Dixon plot for compound 2–6 and quercetin on the ACE inhibition activity for the hydrolysis of 3HB-GGG in the presence of four different concentrations of compounds, 0, 25, 50, and 100 µM, b for lutonarin (2), d for saponarin (3), f for isoorientin (4), h for orientin (5), j for isovitexin (6) and l for quercetin, respectively

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