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. 2018 Apr 29;23(5):1042. doi: 10.3390/molecules23051042

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Biplots of Principal Component Analysis (PCA) of ethanol (A) and aqueous (B) extracts of C. paliurus from different locations. L1: Jinzhongshan; L2: Muchuan; L3: Wufeng; L4: Anji; L5: Suining. P1: 3-O-caffeoylquinic acid; P2: 4-O-caffeoylquinic acid; P3: 4,5-di-O-caffeoylquinic acid; F1: quercetin-3-O-glucuronide; F2: quercetin-3-O-galactoside; F3: isoquercitrin; F4: kaempferol-3-O-glucuronide; F5: kaempferol-3-O-glucoside; F7: kaempferol-3-O-rhamnoside; T1: arjunolic acid; T2: cyclocaric acid B; T3: pterocaryoside B; T4: pterocaryoside A; T5: hederagenin; T6: oleanolic acid; Ps: polysaccharides.