. Author manuscript; available in PMC: 2006 Aug 30.

Published in final edited form as: J Agric Food Chem. 2006 Apr 19;54(8):2881–2890. doi: 10.1021/jf052344k

Table 3.

Compounds Identified and Quantified in Hp Extracts Prepared via Soxhlet Extraction from Dried Plant Material^a

NCRPIS plant material
	μM
quantified standard compounds	hypericin	pseudohypericin	rutin	quercetin	hyperoside	quercitrin	isoquercitrin	chlorogenic acid
95% EtOH
common	240.8 ± 10.7	325.1 ± 3.4	852.3 ± 32.1	detectable	2331.0 ± 24.3	384.5 ± 9.6	1692.8 ± 16.4	2549.1 ± 4.5
Helos	277.5 ± 16.4	406.3 ± 13.4	1964.3 ± 37.6	detectable	2627.4 ± 45.5	482.7 ± 10.4	2256.7 ± 56.7
PI 325351	179.4 ± 3.4	199.2 ± 10.7	9602.6 ± 50.0	detectable	1939.5 ± 21.5	233.9 ± 9.6	1749.3 ± 11.3
PI 371528	179.4 ± 6.2	56.5 ± 3.0	8120.9 ± 70.5	detectable	376.6 ± 16.4	91.2 ± 8.6	1894.0 ± 139.0
chloroform
common	undetectable amounts of all standards tested
Helos	undetectable amounts of all standards tested
PI 325351	undetectable amounts of all standards tested
PI 371528	undetectable amounts of all standards tested

Standard compounds identified and quantified by HPLC analysis within the extract stock solutions prepared from 6 g of dried NCRPIS Hp plant material (mean ± standard deviation). Detectable refers to a standard that was identified, but the amount present was too low to be quantified (n = 3).