Čes. slov. farm. 2006, 55(6):268-271

Liquid Ginger Extract: Technology of Production and Quality Evaluation

R. Masteiková¹, R. Bernatonienė², A. Savickas³, Z. Chalupová¹, J. Bernatonienė³

¹ Veterinární a farmaceutická univerzita Brno, Farmaceutická fakulta, Ústav technologie léků

² Kaunasská univerzita medicíny Litva, Farmaceutická fakulta, Katedra farmaceutické chemie a farmakognozie

³ Kaunasská univerzita medicíny Litva, Farmaceutická fakulta, Katedra technologie léků a sociální farmacie

The paper aimed to elaborate the technology of the production of a liquid ginger extract and to select and verify the methods of quality evaluation of the final preparation. The experiment revealed 70% ethanol as a suitable extraction agent. The optimal conditions for the development of an extract of good quality are established when the herbal drug is crushed to form particles passing through a sieve with a mesh size of 4000 μm, the extraction method is repercolation with the division of the charge of the drug in the relation 5:3:2, and the liquid flows from the percolator at a rate of 0.2ml/min/100 g of the drug. The presence of amino acids, saccharides, glycosides, reducing agents, phenolic substances, and alkaloids in the finished extract was demonstrated by means of colour or precipitation reactions. Thin-layer chromatography was employed to demonstrate gingerols and shogaols. Evaporation residue, ethanol concentration, and the amount of essential oils were determined quantitatively.

Keywords: Zingiber officinale; liquid extract; technology; evaluation

Received: August 2, 2006; Accepted: September 8, 2006; Published: June 1, 2006  Show citation