4.7 Article

Identification and hepatoprotective activity of total glycosides of paeony with high content of paeoniflorin extracted from Paeonia lactiflora Pall

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FOOD AND CHEMICAL TOXICOLOGY
卷 173, 期 -, 页码 -

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PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fct.2023.113624

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Total glucosides of paeony; Paeonia lactiflora Pall; Chinese herb; Acute alcoholic liver injury; UHPLC-Q-Orbitrap-MS; MS

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The aim of this study was to obtain total glucosides of paeony (TGP) with high content of paeoniflorin and evaluate its hepatoprotective properties. Optimized conditions were determined through response surface methodology, resulting in a yield of TGP of 47.68 mg/g. Macroporous resin purification increased the paeoniflorin content of TGP to 67.6%. The purified TGP effectively reduced biochemical indexes and inflammatory cytokines in liver tissue of acute alcoholic liver injury mice model.
The aims of this work were to obtain total glucosides of paeony (TGP) with high content of paeoniflorin and evaluate the hepo-protective properties of TGP. After optimization by response surface methodology, optimized conditions were as follows: extraction time 33.0 min, extraction temperature 48 degrees C, ethanol content 44%, and the yield of TGP was 47.68 mg/g. Moreover, under established macroporous resin purification, paeoniflorin content of TGP achieved 67.6% in 1.5 L scale-up verification experiment. Purified TGP (p-TGP) was further analyzed by UHPLC-Q-Orbitrap-MS/MS, and 35 compouds including paeoniflorin were identified. The obtained p-TGP effectively reduced biochemical indexes and inflammatory cytokines in liver tissue of acute alcoholic liver injury mice model. Depending on this work, TGP with definitive compound composition exhibited great protective effect against acute alcoholic liver injury in vivo. Furthermore, the finding of this work will be helpful to un-derstand the relationship between compound composition and functional properties of Chinese herb extracts.

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