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 1

Yields (%w/w) and voucher specimen number of Benchalokawichian formulation and constituent plants.

Sample	Family name	Voucher specimens	%Yield^*
Ficus racemosa Linn.	Moraceae	SKP 117 06 18 01	4.18%
Capparis micracantha DC.	Capparidaceae	SKP 391 03 13 01	1.89%
Tiliacora triandra Diels.	Menispermaceae	SKP 114 20 20 01	3.92%
Harrisonia perforata Merr.	Simaroubaceae	SKP 178 08 16 01	2.78%
Clerodendrum petasites S. Moore	Lamiaceae	SKP 202 03 09 01	2.20%
Benchalokawichian remedy (Ha-Rak)		—	3.59%

Extraction by maceration with 95% ethanol. Yields are %w/w of starting dry weight of powered roots or BCW formulation.