Abstract:

Objective: To study the optimal preparation technology of Chaphalium affine flavonoids microcapsule. Methods: Arabia gum and β-CD were selected as the wall materials and the flavonoids extract of Chaphalium affine was microencapsulated by the method of freeze-drying. Results: The optimum ratios (m/m) of arabia gum to β-CD and wall materials to core material were 1:15 and 1:10, respectively. The best conditions for freeze-drying were as follows: condenser temperature, －40 ℃; material thickness, 8 mm; and shelf temperature, 40 ℃. The microencapsulation efficiency was higher than 90% and good embedding effect was achieved.

Key words: Chhaphalium affine D.Don, flavonoids, microencapsulation