Effectiveness of Green Tea in a Randomized Human Cohort: Relevance to Diabetes and Its Complications

Table 1

Mauritian green tea phytophenolic data.

Phytophenolic of unhydrolyzed Mauritian green tea/mg per cup
(200 mL)
Total phenol	235.13 ± 30.89^a
Total flavonoid	7.52 ± 0.97^b
Total proanthocyanidin	7.89 ± 0.63^b
Procyanidin B2	496.92 ± 20.08^c
(−)-Epigallocatechin gallate	234.68 ± 12.08^d
(−)-Epigallocatechin	205.12 ± 25.42^e
(−)-Epicatechin gallate	28.46 ± 1.80^f
(−)-Epicatechin	24.42 ± 2.08^g
(+)-Catechin	13.90 ± 2.20^h
Gallic acid	1.66 ± 0.16^i
Phytophenolics in hydrolyzed Mauritian green tea/mg per cup
(200 mL)
Quercetin	1.50 ± 0.16^j
Myricetin	1.48 ± 0.14^j
Kaempferol	0.90 ± 0.08^k

Data are expressed as mean ± standard deviation (𝑛=3). Statistical analyses were performed, using independent samples t-test, for multiple comparisons. Different alphabetical superscripts between rows represent significant differences between mean phytophenolic contents (𝑃<0.05). Free flavonoids were not detected in the green tea extract; however, after hydrolysis, HPLC analysis showed that quercetin, kaempferol, and myricetin were the main flavonol aglycones present in the following decreasing order: quercetin > myricetin > kaempferol.