Catechin epicatechin-gallate

Soy lecithin liposome Epigallocatechin gallate > epicatechin = propyl gallate > catechin > epicatechin gallate > = gallic acid (7)... 

Figure 5.3. Flavanol monomers (catechins, epicatechins, and their gallates) and pro-cyanidins. C catechin GC, gallocatechin EC, epicatechin EGC, epigallocatechin CG, catechin gallate GCG, gallocatechin gallate ECG, epicatechin gallate, EGCG, epigallocatechin gallate.

The effects of flavonoids on in vitro and in vivo lipid peroxidation have been thoroughly studied [123]. Torel et al. [124] found that the inhibitory effects of flavonoids on autoxidation of linoleic acid increased in the order fustin < catechin < quercetin < rutin = luteolin < kaempferol < morin. Robak and Gryglewski [109] determined /50 values for the inhibition of ascorbate-stimulated lipid peroxidation of boiled rat liver microsomes. All the flavonoids studied were very effective inhibitors of lipid peroxidation in model system, with I50 values changing from 1.4 pmol l-1 for myricetin to 71.9 pmol I 1 for rutin. However, as seen below, these /50 values differed significantly from those determined in other in vitro systems. Terao et al. [125] described the protective effect of epicatechin, epicatechin gallate, and quercetin on lipid peroxidation of phospholipid bilayers. 

Fig. 2.62. HPLC chromatogram of (a) jasmin (green) tea, (b) Fujian Oolong tea, (c) pu-erh tea and (d) black tea at 280 nm. Peak identification 1 = gallic acid (GA) 2 = (-)-epigallocatechin (EGC) 3 = (-)-epigallocatechin gallate (EGCG) 4 = epicatechin (EC) 5 = (-)-epicatechin gallate (ECG) 6 = caffeine (CA) 7 = ( — )-catechin gallate (CG). Reprinted with permission from Y. Zuo et al. [178].

Fig. 3.1 Structures of (a) catechin, (b) epicatechin, (c) epicatechin gallate, (d) general structure of PAs, and (e) procyanidin dimer...

C, catechin EC, epicatechin EGC, epigallocatechin ECG, epicatechin gallate EGCG, epigallocatechin gallate GC, gallocatechin. 

Rosa acicularis Lindl. China Vitamins, gallocatechin, epigallocatechin, epicatechin gallate, catechin, epicatchin, fatty acids.48 Stop vomitting blood, stomachache, relieve pain caused by nervous system, menstruation. 

---