Table 1 Yield and pH values of different water extracts from bark of U. pumila

	Time (min)	Yield (%)	pH
4°C	1	15.10±0.36^a*1)	5.85±0.09^a*
4°C	5	15.76±1.90^a*	5.91±0.19^a*
Room temperature	1	15.79±0.27^a*	5.89±0.22^a*
Room temperature	5	15.64±1.69^a*	5.94±0.23^a*
80°C	1	16.27±1.61^a*	5.88±0.17^a*
80°C	5	15.50±1.60^a*	5.77±0.22^a*

Within the same treatment time and temperature, the values within same column sharing a common letter and asterisk are not significantly different, respectively, p<0.05.