Table 2
Soluble protein and Reducing sugar content of acorn and acorn tea (mg/g)

Samples¹⁾	Soluble protein	Reducing sugar
NA	6.38±1.01^c2)	64.3±0.13^a
OSAT	8.85±1.60^b	47.6±0.17^b
TSAT	12.74±0.94^b	48.4±0.47^b
RAT	10.91±0.86^ab	47.7±0.28^b

NA, natural acron dried by room temperature; OSAT, acorn tea produced by one steaming (100℃, 15min) and drying; TSAT, acorn tea produced by three steaming (100℃, 15min) and drying; RAT, acorn tea produced by roasting (220℃, 10min).
All value are expressed as mean±SD of triplicate determinations. Different superscripts within the column are significantly different at p<0.05 by Duncan’s multiple range test.