Impact of Different Extraction Solvents on Phenolic Content and Antioxidant Potential of Pinus densiflora Bark Extract
Table 3
Effect of extraction solvents on the total phenol content (TPC) of Pinus densiflora bark (PDB) extract.
Plant Material
Extraction solvent
Extract Name
TPC (GAE mg/g extract)
PDB
Water
E0
146.35 ± 0.01
PDB
20% ethanol with water (vol/vol)
E20
266.05 ± 4.30
PDB
40% ethanol with water (vol/vol)
E40
255.57 ± 4.44
PDB
60% ethanol with water (vol/vol)
E60
171.38 ± 1.09
PDB
80% ethanol with water (vol/vol)
E80
144.60 ± 3.22
PDB
100% ethanol with water (vol/vol)
E100
92.75 ± 2.04
PDB
20% methanol with water (vol/vol)
M20
200.44 ± 3.52
PDB
40% methanol with water (vol/vol)
M40
191.14 ± 0.24
PDB
20% acetone with water (vol/vol)
A20
240.89 ± 0.11
PDB
40% acetone with water (vol/vol)
A40
179.13 ± 1.51
PDB
20% isopropanol with water (vol/vol)
ISP20
242.47 ± 0.92
PDB
40% isopropanol with water (vol/vol)
ISP40
244.49 ± 1.94
PDB
20% acetonitrile with water (vol/vol)
ACN20
257.68 ± 6.14
PDB
40% acetonitrile with water (vol/vol)
ACN40
243.48 ± 0.51
Values are expressed as Gallic acid equivalent (GAE) mg/g extract. Values are mean ± SD from three independent experiments. p < 0.001, ns-nonsignificant, compared to E0 (water extract).
