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Table 1 Summary of the yields of crude extracts (dry weight, mg) obtained from ground Huang-Qin (50 g) using different extraction methods

From: Chemical and pharmacological evaluations on the extract of Scutellaria baicalensis Georgi (Huang-Qin) prepared by various extraction methods

Extraction methods

Abbreviation

Crude extract (mg/g herb)

Heat reflux extraction using water

HRE-W

297.4 ± 28.4

Microwave-assisted extraction using water

MAE-W

390.8 ± 16.6***

Ultrasonic extraction using ethanol (70 % vol/vol)

UE-E

327.4 ± 19.4

Ultrasonic extraction using water

UE-W

275.0 ± 9.0

  1. Results are expressed as mean ± SEM (n = 3)
  2. *** P < 0.001 compared to HRE-W
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