Table 1.

Total Phenolic and Proanthocyanidin Content in Pinus brutia Bark Extracts

	Total phenolic content (mg gallic acid/g extract)	Proanthocyanidin content (mg (+)-catechin/g extract)
PbE	412.42 ± 7.56††††,‡‡‡‡,####,$	225.79 ± 3.94††††,$$$$
PbE1	366.71 ± 5.63****,‡‡‡‡,####,$$$	10.05 ± 0.22****,‡‡‡‡,####,$$$$
PbE2	448.90 ± 1.39****,††††,####,$$$$	231.41 ± 1.24††††,$$$$
PbE3	303.79 ± 7.34****,††††,‡‡‡‡,$$$$	229.10 ± 1.13††††,$$$$
PbE4	393.49 ± 5.39*,†††,‡‡‡‡,####	250.40 ± 1.44****,††††,‡‡‡‡,####

Significant differences between extracts are indicated: ^*P < .05, ^****P < .001 vs. PbE; ^†††P < .002, ^††††P < .001 vs. PbE1; ^‡‡‡‡P < .001 vs. PbE2; ^####P < .001 vs. PbE3; ^$P < .05, ^$$$P < .002, ^$$$$P < .001 vs PbE4.

PbE, crude extract of P. brutia bark with 80% (v/v) methanol (18.36 g); PbE1, PbE fractionated with diethyl ether (2.18 g); PbE2, PbE fractionated with ethyl acetate (1.84 g); PbE3, PbE fractionated with n-butanol (8.59 g); PbE4, remaining aqueous phase (5.37 g).