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Abstract
ABSTRACTCyclocarya paliurus is a medicinal plant containing various bioactive components with significant health benefits. Cell cultures of C. paliurus have been used to produce these bioactive metabolites. A chemical fingerprint was obtained by high-performance liquid chromatography (HPLC) to monitor the synthesis of major triterpenoids in cultured C. paliurus cells and provide a reliable quality assessment for the cell strain screening. The determination of five triterpenoids, namely, maslinic acid, corosolic acid, betulinic acid, oleanic acid, and ursolic acid, was also performed. The HPLC method for the determination of triterpenoids in the cultured cells was accurate, stable, and reliable, and therefore suitable for chemical fingerprint analysis. Sixteen C. paliurus cell strains varied dramatically in their triterpenoid accumulations. The concentrations of the triterpenoids were 0.45–2.19 (maslinic acid), 0.92–5.34 (corosolic acid), 2.58–4.70 (betulinic acid), 4.07–12.47 (oleanic acid), and 12.64–40.98 (ursolic acid) mg/g. A high yield cell strain had a total triterpenoid concentration of 66.34 mg/g. Ten peaks in the HPLC chromatogram with reasonable height and high resolution were assigned as characteristic for fingerprint and analysis. A reference fingerprint was also obtained for cell strain assessment.
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