STUDY OF PREPARATION EXTRACTUM FROM EXCOECARIA COCHINCHINENSIS LOUR. HARVESTED IN THAI NGUYEN

Abstract

Objectives: To prepare extractum from the leaves of Excoecaria cochinchinensis Lour. havested in Thai Nguyen; to survey the conditions of prepare of extractum and build some indicators to test it from the leaves of Excoecaria cochinchinensis Lour. havested in Thai Nguyen. Methods: Checking the right of pharmaceuticals under the Vietnam Pharmacopoeia IV [3]; conducting a survey of conditions to prepare extractum: Solvent (70% ethanol, 90% ethanol), temperature, the ratio of solvent/pharmaceutical; evaluating the quality of extractum determined in accordance with Vietnam Pharmacopoeia IV. Results: Have prepared extractum whose characteristics are soft, uniform, dark brown, fragrant, bitter, sour, acrid; extractum contained flavonoids; humidity: 18.60 ± 0.50 (%) (α=0.05); pH = 3.97 ± 0.20 (α=0,05). Conclusions: Have choose the conditions of prepare of extractum. Have examined the conditions and constructed process of extracting of extractum whose volume is 33.63 ± 0.37 (g) (α=0.05) from the leaves of Excoecaria cochinchinensis Lour.;  connstructed drafting specific to test extractum.