Aging time (months)

7

8

9

10

11

12

Evolution/ Times

Compounds

Gallic acid

1.188 ± 0.004

1.372 ± 0.005

1.528 ± 0.002

1.661 ± 0.008^**

1.757 ± 0.002^**

1.865 ± 0.005^**

5.721

Catechin

0.209 ± 0.010

0.217 ± 0.004

0.231 ± 0.003

0.229 ± 0.003

0.230 ± 0.010

0.244 ± 0.010

1.167

Vanillic acid

6.574 ± 0.046^**

7.111 ± 0.068^**

7.512 ± 0.028^**

7.857 ± 0.023^**

8.023 ± 0.002^**

8.355 ± 0.032^**

7.630

Phenol

0.470 ± 0.015

0.462 ± 0.001

0.493 ± 0.003

0.489 ± 0.013

0.550 ± 0.034

0.785 ± 0.078

7.008

Syringic acid

1.042 ± 0.001

1.092 ± 0.001

1.118 ± 0.006

1.135 ± 0.006

1.159 ± 0.013

1.254 ± 0.005

1.443

Vanillin

0.125 ± 0.002

0.140 ± 0.005

0.147 ± 0.001

0.155 ± 0.001

0.157 ± 0.001

0.156 ± 0.004

1.592

Syringaldehyde

1.490 ± 0.018

1.667 ± 0.015

1.799 ± 0.040

1.957 ± 0.003^**

2.024 ± 0.020^**

2.226 ± 0.002^**

2.765

p-Coumaric acid

0.433 ± 0.001

0.470 ± 0.004

0.508 ± 0.001

0.525 ± 0.005

0.556 ± 0.006

0.601 ± 0.003

5.050

Sinapic acid

1.262 ± 0.036

1.384 ± 0.029

1.498 ± 0.034

1.806 ± 0.026

1.761 ± 0.050

2.577 ± 0.040^**

10.105

Coumarin

-

4-Methylumbelliferone

0.707 ± 0.059

1.076 ± 0.010

1.263 ± 0.002

1.363 ± 0.025

1.566± 0.020

1.727± 0.018

6.799

o-Coumaric acid

0.185 ± 0.006

0.203 ± 0.003

0.229 ± 0.010

0.238 ± 0.008

0.267± 0.002

0.256± 0.017

1.765

Sum of each phenolic compound (on each month)

13.685

15.194

16.326

17.415

18.050

20.049

-