Enrichment Technology of Ursolic Acid in Ethanol Extract from Psidium guajava Leaves
CHEN Chun,LIU Li-qing,CHEN Fei,LIN Zhi-kai,LI Hui-hua,LIU Hong-zhou
Subtropical Plant Science . 2015, (04): 297 -303 .  DOI: 10.3969/j.issn.1009-7791.2015.04.007