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Planta Med 1979; 36(5): 74-78
DOI: 10.1055/s-0028-1097243
Research Articles

© Georg Thieme Verlag Stuttgart · New York

Quantitative Determination of Glycyrrhizic Acid in Liquorice Roots and Extracts by TLC–Densitometry

Studies on the Evaluation of Crude Drugs, VIYoshio Takino1 , Masaji Koshioka1 , Michiko Shiokawa1 , Yasuko Ishii1 , Shuzo Maruyama2 , Masayuki Higashino3 , Teruaki Hayashi3
  • 1Shizuoka College of Pharmacy, Oshika, Shizuoka–shi, Shizuoka, Japan.
  • 2Kyoto Pharmaceutical Industries Ltd., Ukyo–ku, Kyoto–shi, Kyoto, Japan.
  • 3Koshiro Chuji–Shoten Co., Ltd., Dosho–machi, Higashi–ku, Osaka–shi, Osaka, Japan.
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Publication History

Publication Date:
13 January 2009 (online)

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Abstract

Quantitative determinations of glycyrrhizic acid in liquorice roots and extracts were made by TLC–densitometry, which directly determined glycyrrhizic acid. The glycyrrhizic acid content was 2.20–6.53 per cent in liquorice roots and 7.50–9.30 per cent in extracts.

Key Word Index

Glycyrrhiza glabra - Glycyrrhizic acid - TLC–Densitometry