Inhibitory Effect on β-Hexosaminidase Release from RBL-2H3 Cells of Extracts and Some Pure Constituents of Benchalokawichian, a Thai Herbal Remedy, Used for Allergic Disorders

Table 2

Yields (%w/w) of fractions after VLC of the crude ethanolic extract of Benchalokawichian formulation.

Fraction; solvent system	%Yield^*
1; hexane	0.06 (0.002)
2; hexane : chloroform	5.98 (0.214)
3; chloroform	13.26 (0.47)
4; chloroform : methanol	65.40 (2.35)
5; methanol	10.52 (0.38)

Yield is %w/w of crude ethanolic extract (values in brackets are %w/w expressed of DPW).