Separation of five flavonoids from tartary buckwheat (Fagopyrum tataricum (L.) Gaertn) grains via off-line two dimensional high-speed counter-current chromatography

Neuraminidase Inhibitory Activity and Constituent Characterization of Fagopyrum dibotrys

“…Thirteen flavonoid components were identified [15,16,17], and among them six peaks (12, 13, 15, 24, 25 and 28) were matched with standard compounds. Peaks 12 and 13, a pair of isomers with a m / z 289 molecular ion and a fragment ion of m / z 245 [M − H − CO 2 ] − , was proposed to be (−)epicatechin and (+)-catechin, respectively.…”

In vitro DNA damage protection and anti‐inflammatory effects of Tartary buckwheats (Fagopyrum tataricum L. Gaertn) fermented by filamentous fungi

“…a. Six phenolic compounds were tentatively identified by comparing the present mass spectrometry data with those reported from previous studies (Li et al ., , ; Verardo et al ., ; Jiang et al ., ). The MS 2 spectra of those six main phenolics are illustrated in the Fig.…”

“…In this study, six phenolic compounds were detected and tentatively identified using UHPLC‐ESI‐HRMS/MS and with reference to previously reported data for phenolic compounds in Tartary buckwheat (Fig. a and Table ) (Li et al ., , ; Verardo et al ., ; Jiang et al ., ). According to the present results (Fig.…”

“…The total flavonoids in Tartary buckwheat, especially rutin, are higher than those in common buckwheat (Li & Zhang, ; Fabjan et al ., ; Jiang et al ., ). Tartary buckwheat also contains several other phenolic compounds (Li et al ., , ; Verardo et al ., ; Jiang et al ., ) and has recently gained attention given its higher efficacy in preventing chronic diseases compared with common buckwheat (Zhu, ). Numerous in vitro and in vivo studies have revealed that Tartary buckwheat has strong antioxidative (Ren & Sun, ), cholesterol‐lowering (Yang et al ., ), antitumour (Li et al ., ), antidiabetic (Gong et al ., ) and anti‐inflammatory (Karki et al ., ) activities.…”

Target-guided separation of antioxidants from Semen cassia via off-line two-dimensional high-speed counter-current chromatography combined with complexation and extrusion elution mode

“…Recently, an on-line CCC-SPE (Solid Phase Extraction)-CCC hyphenation was built up in our own lab, eleven compounds were systematically separated from NP Rhizoma Chuanxiong by one-step [27]. While, compared with relatively complex on-line 2-D HSCCC, only one instrument is required in off-line one, and the whole separation system is more stable, although it may require several steps [28,29]. Nevertheless, it is common that structural analogues possess poor peak resolution and co-elute with other compounds due to their similar partition coefficients (K-values).…”