Preparation of flavonoids and diarylheptanoid from Alpinia katsumadai hayata by microwave-assisted extraction and high-speed counter-current chromatography

Microwave-Assisted Simultaneous Extraction of Luteolin and Apigenin from Tree Peony Pod and Evaluation of Its Antioxidant Activity

“…However, these extraction techniques are inefficient, time-consuming, and energy-consuming [22]. In recent years, the development and use of environmentally friendly methods have become increasingly popular.…”

Bioassay-guided separation and purification of water-soluble antioxidants from Carthamus tinctorius L. by combination of chromatographic techniques

“…Besides, many minor compounds disappear after column chromatographic separation because of irreversibly adsorption onto the solid support during separation [16]. High-speed counter-current chromatography (HSCCC) is a continuous liquid-liquid partition chromatography without solid support matrix [17] and has been widely used for various natural compounds separation [18][19][20][21]. Because of high sample recovery, low solvent consuming and no irreversible adsorption [22], it is appropriate for the separation of minor active ingredients from natural products [23][24][25].…”

An Overview on Cardamonin

“…Recently, a HPLC-UV methodology has been developed with a LOD of 0.52 lM. 39 Cardamonin has been analyzed by square wave voltammetry on a hanging mercury drop electrode, the obtained LOD was of 0.55 lM, 68 with a peak potential of -1.0 V versus AgjAgCl. 95 It has also been analyzed by electrospray ionization tandem mass spectrometry (ESI-MS).…”

“…3 Cardamonin's name comes from the fact that it can be found in cardamom spice (Fig. 4), but since the first article where it was described, 22 it has been found in many other (some of them edible) plant species, such as Alpinia blepharocalyx, 23,24 Alpinia gagnepainii, 25 Alpinia conchigera, 26,27 Alpinia hainanensis, [28][29][30][31][32][33][34][35][36][37][38][39][40] Alpinia malaccensis, 41 Alpinia mutica, 42,43 Alpinia pricei, 44 Alpinia rafflesiana, [45][46][47][48] Alpinia speciosa, 22,49,50 Amomum subulatum, 51 Artemisia absinthium, 52 Boesenbergia pandurata, [53][54][55][56][57][58][59][60] Boesenbergia rotunda, 61,62 Carya cathayensis, 63 Cedrelopsis grevei, 64 Combretum apiculatum, 65 Comptonia pere...…”