Screening of strains with high content of secondary production in endophytic fungi and fermentation liquid from wild soybean Study on formulation of liquid-solid compressed tablets of total triterpenoids from Sclerotii Poriae Cortex Extraction of triterpenoids from fruits of Ganoderma lucidumby supercritical fluid extraction Accumulative characteristics of triterpenoid precursor and different triterpenoid branch products in Betula platyphylla Triterpene biosynthesis in Euphorbia pekinensis induced by methyl jasmonate