. Author manuscript; available in PMC: 2015 Aug 7.

Published in final edited form as: Planta Med. 2013 Mar 6;79(5):327–329. doi: 10.1055/s-0032-1328259

Table 2.

Quantity of the bioactive flavonoid sarothrin in extracts prepared from various plant parts of Alkanna orientalis.

Plant Part	Sarothrin Concentration (ppm)^a ± SD
root^b	0.51 ± 0.40
seed	0.37 ± 0.12
leaf	52.9 ±1.4
flower + leaf	160. ± 13

Quantities are reported as mg sarothrin/kg plant material based on LC-MS analysis of extracts prepared from the relevant plant parts. Standard deviations are for triplicate analyses of the same extract. Error bars represent ± the standard deviation of each extract concentration based on linear regression analysis of a 9 point calibration curve of peak area versus concentration with slope (m) = 0.9787 ± 0.0021, intercept (b) = 6.346 ± 0.018 and R² = 0.9967.

The concentration reported for the root extract is approximate only, as the concentration in the extract at the dilution analyzed was below the lower limit of detection for the method. Concentrations for the seed, leaf, and flower + leaf extract fell within the linear range of the calibration curve.