BioMed Research International / 2013 / Article / Tab 1

Clinical Study

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 phenol235.13 ± 30.89a
Total flavonoid7.52 ± 0.97b
Total proanthocyanidin7.89 ± 0.63b
Procyanidin B2496.92 ± 20.08c
(−)-Epigallocatechin gallate234.68 ± 12.08d
(−)-Epigallocatechin205.12 ± 25.42e
(−)-Epicatechin gallate28.46 ± 1.80f
(−)-Epicatechin24.42 ± 2.08g
(+)-Catechin13.90 ± 2.20h
Gallic acid1.66 ± 0.16i

Phytophenolics in hydrolyzed Mauritian green tea/mg per cup
(200 mL)

Quercetin1.50 ± 0.16j
Myricetin1.48 ± 0.14j
Kaempferol0.90 ± 0.08k

Data are expressed as mean ± standard deviation ( ). Statistical analyses were performed, using independent samples t-test, for multiple comparisons. Different alphabetical superscripts between rows represent significant differences between mean phytophenolic contents ( ). 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.