Nghiên cứu điều chế bột cao khô bán chi liên (Scutellaria barbata D. Don) bằng phương pháp sấy

Abstract

Dry extract powders from Scutellaria barbata (D. Don) were prepared. By investigating the influential factors such as solvent; extraction (method, duration and times), excipient and its ratio, drying temperature and time, the process was proposed as: Reflux with ethanol 70% by 3 times, each for one hour; the obtained extracts are concentrated to the moisture of 25%, add starch at the ratio of 20% compared with the solid content; dry the obtained mixture at 9ữC for 13 hrs, then grind the dry to powders.