*4.2. Polysaccharide and Total Alkaloid Contents Determination*

The method for determining the polysaccharide content is consistent with the Chinese Pharmacopoeia (version 2010), and the details are described in our previous study [15]. The method of total alkaloids has been modified based on the Bush et al. method and has been described in detail in our previous studies [52,53]. A part of data of this part has been published [14,15].
