Table 3: Content of phenolic compounds in nine varieties of C. officinalis leaves, mg g−1 from dry plant weight.

CompoundVariety
“Egypt Sun”“Flame Dance”“Geisha”“Green Heart Orange”“Indian Prince”“Radio”“Red Black Centered”“Russian Size”“Touch of Red”

Phenylpropanoids

Caffeic acid0.461.140.310.570.430.640.390.290.20
3-O-Caffeoylquinic acid6.4813.256.592.412.358.852.311.951.73
3,5-Di-O-caffeoylquinic acid2.374.910.800.081.903.900.860.400.23
1,5-Di-O-caffeoylquinic acid0.460.330.340.100.521.530.240.190.27
4,5-Di-O-caffeoylquinic acid0.180.540.200.070.390.360.330.120.15
Total phenylpropanoids9.9520.178.243.235.5915.284.132.952.58

Flavonoids

Quercetin derivatives
Isoquercitrin3.932.734.325.343.445.025.344.595.14
Rutin0.220.170.920.630.290.270.720.150.17
Quercetin-3-O-(6′′-acetyl)- -D-glycoside2.501.684.363.142.674.254.303.036.85
Total quercetin derivatives6.654.589.609.116.409.5410.367.7712.16

Isorhamnetin derivatives
Thyphaneoside0.780.741.011.080.920.971.372.460.73
Isorhamnetin-3-O- -D-glucoside0.630.440.712.410.880.222.150.361.04
Isorhamnetin-3-O-(6′′-acetyl)- -D-glycoside0.620.351.212.080.810.801.640.321.81
Total isorhamnetin derivatives2.031.532.935.572.611.995.163.143.58
Total flavonoids8.686.1112.5314.689.0111.5315.5210.9115.74
Total identified 18.6326.2820.7717.9114.6026.8119.6513.8618.32
Quercetin/isorhamnetin ratio3.282.993.281.642.454.792.012.483.40
Phenylpropanoid/flavonoid ratio1.153.300.660.220.621.330.270.270.16