Journal of Plant Biotechnology : eISSN 2384-1397 / pISSN 1229-2818

Table. 1.

Table. 1.

Total phenol and flavonoid contents of the extract from Dolwoe (Gynostemma pentaphyllum Makino) leaves tea with different ethanol concentrations

SamplesTotal phenol (mg GAE/g)aTotal flavonoid (mg QE/g)b
Distilled water extract35.54±0.75 e5.37±0.21 f
20% ethanolic extract47.83±0.93 d7.65±0.17 e
40% ethanolic extract59.50±1.09 c14.42±0.07 d
60% ethanolic extract64.86±1.49 b20.00±0.04 c
80% ethanolic extract68.80±1.66 a23.86±0.14 b
99.5% ethanolic extract71.52±1.01 a28.91±0.05 a

Means with different letters (a-f) in the same column are significantly different at p<0.05 (SPSS, Tukey)

Total phenolic content analyzed as gallic acid equivalent (GAE) mg/g of extract; values are the average of triplicates

Total flavonoid content analyzed as quercetin equivalent (QE) mg/g of extract; values are the average of triplicates

J Plant Biotechnol 2019;46:37-44 https://doi.org/10.5010/JPB.2019.46.1.037
© 2019 J Plant Biotechnol