Table 1. Total polyphenol and flavonoid contents of the Rhus verniciflua extracts

Variables¹⁾	Treatments²⁾						SEM
Variables¹⁾	RRV	BHT	35°C	100°C	120°C	140°C	SEM
TPC	235.17^d	270.54^b	233.68^d	268.82^b	279.41^a	239.63^c	3.17
TFC	30.79^e	42.41^b	33.13^d	40.63^c	48.21^a	34.11^d	0.11

TPC, total polyphenol content expressed in gallic acid equivalent (GAE) mg/g of extract; TFC, total flavonoid content expressed in quercetin equivalent (QE) mg/g of extract.
35°C, Rhus verniciflua extract pre-heated at 35°C; 100°C, Rhus verniciflua extract pre-heated at 100°C; 120°C, Rhus verniciflua extract pre-heated at 120°C; 140°C, Rhus verniciflua extract pre-heated at 140°C.
Means with different superscripts indicate a significant difference among treatments (p < 0.05).
RRV, Raw Rhus verniciflua extract; BHT, 2,6-di-tert-butyl-hydroxytoluene.