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Table 1 Effect of solvent concentration on α-glucosidase inhibitory activity and andrographolide yield from A. paniculata extracts

From: Classification of Andrographis paniculata extracts by solvent extraction using HPLC fingerprint and chemometric analysis

Extraction solventInhibition
(% ± SD)a
Andrographolide content (mg/g ± SD)b
Water54.80 ± 4.0525.18 ± 1.49
30% ethanol58.42 ± 2.4150.29 ± 1.43
50% ethanol79.66 ± 6.45114.56 ± 2.30
70% ethanol60.02 ± 0.3296.48 ± 0.89
Pure ethanol49.58 ± 0.97102.08 ± 2.73
  1. aAverage of 2 replicates
  2. bAverage of 3 replicates