Kaempferol 3,7-diglucoside

Silk dyed with Reseda luteola, Sophora japonica and Allium cepa Rutin, quercetin, kaempferol, kaempferol 3,7 diglucoside, quercetin 4 glucoside, luteolin HCI/Me0H/H20, HCOOH/MeOH, H2EDTA/ACN/MeOH A H20 B ACN C H20 with HCOOH 350, 450, 490 nm/ ESI( ) Column C4 6... 

Equisetum arvense L. E. hyemale L. E. ramosissimum Desf. Mo Ja Chao (Horsetail) (whole plant) Equisetonin, equisetrin, articulain, isoquereitrin, galuteolin, populnin, kaempferol-3,7-diglucoside, astragalin, palustrine, gossypitrin, 3-methoxypyridine, herbacetrin.48 Antihemorrhagic, anodyne, carminative, diaphoretic, diuretic. 

Greek saffron Picrocrocin, safranal, crocins, kaempferol diglucoside Me0H/H20 A MeOH B H20 with AcOH 250, 308, 440 nm/ ESI (+) ESI interface 22... 

Slimestad, R. et al., Myricetin 3,4 -diglucoside and kaempferol derivatives from needles of Norway spruce, Picea abies. Phytochemistry, 32, 179, 1993. 

Pueraria lobata (Willd.) Ohwi. P. pseudo-hirsuta Tang. Ge Gen (Kudzu) (root) Isoflavones, daidzin, diadz.in-4, 7-diglucoside, daidzein, puerarin, xylopurarin, robinin, kaempferol-rhamnoside, fatty acids.12-33-48 Antispasmodic, hypotensive, and stabilizing blood pressure, treat angina pectoris. 

AF Finger, UH Engelhardt, V Wray. Flavonol glycosides in tea—kaempferol and quercetin rhamno-diglucosides. J Sci Food Agric 55 313-321, 1991. 

Figure 7.8A HPLC ESI-MS-MS analysis (MS2[M—H] ) of isomeric flavonol diglucosides (a) kaempferol-3-O-sophoroside (glucosyl(l-2)glucoside) (b) kaemp-ferol-3-O-gentiobioside (glucosyl(l-6)glucoside) (c) kaempferol-3,7-di-0-glucoside (Ferreres et al., 2004).

Equisetum palustre (3,4) six green zones of kaempferol glycosides in the R, range 0,05-0.5, such as k-3-diglucosyl-7-glucoside, k-3-rutinosyl-7-glucoside and k-3, 7, diglucoside. 

Equisetum silvaticum (6) similar pattern of green kaempferol glycoside zones as in sample 5. In addition, the yellow-orange zones of quercetin-3, 7-diglucoside (R, 0.4) and isoquercitrin (R, — 0.7) as in E. arvense (1,2). 

A wide range of kaempferol and quercetin glycosides has also been reported, among them quercetin 3-rutinoside, kaempferol 3-rutinoside and quercetin 3-rutinoside 4 -diglucoside [16]. 

Figure 7.13 Broccoli florets contain flavonol sophorosides and conjugated derivatives of sinapic acid while kaempferol-3,7-0-diglucoside is among the flavonols present in cabbage leaves.

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