Table 1.

TPC, RSC and yield of unripe apple polyphenol extracted with Viscozyme L-aided extraction condition ^a

Treatment	TPC b (mg GAE/100 g)	RSC c (g/100 g)	Extraction yield (%)
Viscozyme L	163.43±1.55 d	11.19±0.05	7.08±0.30
Control e	45.56±0.86	7.43±0.04	3.20±0.17

^a Reaction: the ratio of Viscozyme L to substrate 0.02 (2 FBG), pH 3.7, 50 °C, 12 h; Extraction: 70% ethanol, 85 °C, 12 h

^b TPC: total phenolic content

^c RSC: reducing sugar content

^d Values are the mean±SD of triplicates

^e Without enzyme treatment