The most abundant
catechin in green tea is epigallocatechin gallate (EGCG), accounting for as much as 65% of all green tea
catechins.
1 It's high in antioxidants MATCHA is a rich source of
catechins, natural antioxidants that are found in plants.
Although no serious side effects were reported in the studies,
catechins have been reported to raise liver enzymes in animals.
Comparing the production capacity of TFs, TRs, and TBs in different varieties of tea leaves (Figures 3(a)-3(c)), Yinghong 9 and Hongyan 12 had a higher capacity of producing TFs than other varieties, which was closely related to the highly active PPO and POD (Figures 1(a) and 1(b)) and higher content of
catechins (Figure 2); Yinghong 9 had a higher enzymatic activity than other varieties, and in addition to the higher content of
catechins, it could produce the most TRs; although Longjing 43 had a higher content of
catechins, its enzymatic activity was low, so the production of TRs was significantly the lowest; the production of TRs was significantly associated with the content of
catechin substrate and PPO and POD activity [15].
One patient of 13-year-old girl received heart transplant after taking
catechin for 3 months due to her very serious condition.
Keywords:
catechin, Alhagi camelorum, HPLC, isolation
Procyanidin dimer Dihedral angle Molecular (degrees) surface area ([[Angstrom].sup.2]) PB3 Com 114.20 (C3-C4-C8-C9) 745.9 PB3 Ext -35.39 (C3-C4-C8-C9) 678.5 PB4 Com 102.08 (C3-C4-C8-C9) 744.4 PB4 Ext -65.12 (C3-C4-C8-C9) 677.3 PB5 101.72 (C3-C4-C6-C7) 748.9 PB6 -59.32 (C3-C4-C6-C7) 751.4 PB7 101.37 (C3-C4-C6-C7) 745.3 PB8 -59.49 (C3-C4-C6-C7) 749.8 Procyanidin dimer Relative energy ([DELTA]E kcal/mol) PB3 Com 3.49 PB3 Ext 6.49 PB4 Com 0 PB4 Ext 0.23 PB5 5.05 PB6 3.12 PB7 4.63 PB8 4.55 PB3 (C4[alpha]-C8,
catechin); PB4 (C4[alpha]-C8, catechin-epicatechin); PB5 (C4[beta]-C6, epicatechin); PB6 (C4[alpha]-C6,
catechin); PB7 (C4[beta]-C6, epicatechin-catechin); PB8 (C4[alpha]-C6, catechin-epicatechin).
Whereas green tea is usually steeped in hot water and EGCG is infused as the main
catechin, non-gallate
catechins such as EGC and EC are mainly eluted into water at room temperature.
Compared to generic green tea extracts, the Phytofare
Catechin Complex has been clinically shown to deliver ten times greater levels of
catechins to the blood plasma where they remain at therapeutic levels for over 24 hours, according to the company.
Also in 2013, oral intake of green tea
catechins in 16 healthy human subjects (with 14 completing the study) appeared to result in the integration of
catechin metabolites into human skin linked to the negation of UV-induced 12-hydroxyeicosatetraenoic acid (12-HETE).
Comparisons of absorption spectra and TLC of the reference tannins and some phenolics with that of Acacia nilotica extracts revealed the presence of both condensed and hydrolyzable tannins, since it consists of
catechin, tannic and gallic acids.
Biopharmaceutical producer Plandai Biotechnology (OTC PINK:PLPL) reported on Tuesday that it has received an initial order for 500,000 capsules of its Pheroid entrapped Phytofare
catechin complex under the trade named 'ph2' from Coyne Healthcare located in South Africa.
