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. 2009 Oct 30;87(2):147–155. doi: 10.1007/s11746-009-1486-0

Table 3.

Phenolic contents (mg/g) of different canola fractions

Sinapine (SP) Sinapoyl glucose (SG) Sinapic acid (SA) SP + SG +SA Total phenolics (SAE)*
HPLC** Folin–Ciocalteu
Seeds
 S1 11.89 ± 0.36a 3.04 ± 0.06c 0.20 ± 0.01g 15.13 13.79b 17.77 ± 0.07c
 S2 9.58 ± 0.00b 6.65 ± 0.00a 0.20 ± 0.00g 16.43 15.33a 18.46 ± 0.71b
 S3 11.73 ± 0.32ab 1.13 ± 0.03f 0.11 ± 0.00k 12.97 12.55d 16.30 ± 0.50c
 S4 10.12 ± 0.00b 3.01 ± 0.00c 0.25 ± 0.00f 13.38 13.14c 19.39 ± 0.70b
 S5 9.16 ± 0.19c 2.96 ± 0.07c 0.10 ± 0.00k 12.22 12.53c 17.58 ± 0.00c
 S6 10.42 ± 0.07a 2.65 ± 0.04c 0.17 ± 0.00hi 13.24 12.08d 16.16 ± 0.01c
 S7 9.20 ± 0.38b 3.46 ± 0.16c 0.10 ± 0.00k 12.76 13.40c 17.95 ± 0.31c
 S8 8.59 ± 0.23c 4.86 ± 0.12b 0.15 ± 0.01j 13.60 12.28c 16.58 ± 0.41c
 S9 10.06 ± 0.99b 3.54 ± 0.30b 0.19 ± 0.02gh 13.73 12.85c 17.55 ± 0.82c
 S10 9.11 ± 0.17b 4.75 ± 0.04b 0.16 ± 0.00ij 14.02 12.69c 17.34 ± 0.41c
 S11 8.68 ± 0.24c 2.45 ± 0.06d 0.19 ± 0.01g 11.32 11.63d 16.96 ± 0.25c
 S12 8.65 ± 0.48c 3.04 ± 0.16c 0.15 ± 0.01ij 11.84 13.18c 17.95 ± 0.34c
 S13 9.73 ± 0.15b 4.54 ± 0.02b 0.28 ± 0.00e 14.55 13.76b 19.22 ± 0.01b
 S14 9.82 ± 0.41b 1.26 ± 0.04f 0.09 ± 0.00k 11.17 11.36d 16.58 ± 0.90c
 S15 9.08 ± 0.22c 6.54 ± 0.11a 0.17 ± 0.00ij 15.79 14.82a 18.15 ± 0.12b
 S16 10.25 ± 0.00a 1.30 ± 0.00f 0.10 ± 0.00k 11.65 11.82c 16.09 ± 0.26c
 S17 10.70 ± 0.00a 5.82 ± 0.00a 0.59 ± 0.00a 17.11 15.16a 22.54 ± 0.46a
 S18 10.94 ± 0.06a 0.50 ± 0.01g 0.15 ± 0.00ij 11.59 11.00e 16.20 ± 0.44c
Press cakes
 C1 11.17 ± 0.27a 2.58 ± 0.06d 0.29 ± 0.01e 14.04 12.73c 17.73 ± 0.31c
 C2 9.90 ± 0.02a 4.01 ± 0.02b 0.44 ± 0.00b 14.35 13.71b 19.71 ± 0.00b
 C3 11.31 ± 0.20ab 2.37 ± 0.03d 0.35 ± 0.00d 14.03 14.47b 18.01 ± 0.59b
Meals
 M1 10.11 ± 0.10b 1.37 ± 0.01e 0.33 ± 0.00d 11.80 11.19e 16.66 ± 0.43c
 M2 6.11 ± 0.10e 1.81 ± 0.02e 0.41 ± 0.00c 8.33 9.19f 14.56 ± 0.37d
 M3 9.39 ± 0.09c 1.35 ± 0.01e 0.35 ± 0.00d 11.09 11.67e 16.26 ± 0.22c
 M4 8.80 ± 0.00c 1.65 ± 0.00e 0.39 ± 0.00c 10.84 10.99e 16.10 ± 0.69c
 M5 9.22 ± 0.29c 1.70 ± 0.05e 0.32 ± 0.01d 11.24 10.97b 15.43 ± 0.39d
 M6 7.66 ± 0.16d 1.58 ± 0.03e 0.38 ± 0.01cd 9.62 9.57f 15.42 ± 0.10d
 M7 8.76 ± 0.08c 1.99 ± 0.01d 0.41 ± 0.00c 11.16 11.16e 16.40 ± 0.24c

Values are means ± the standard deviation (SD)

S Seed, C Cake, M Meal

Values in the same column followed by similar superscript letters are not significantly different at p ≤ 0.05

*SAE = sinapic acid equivalents

**Estimated from the total area of all the peaks based on the sinapic acid calibration curve