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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Mol Nutr Food Res. 2016 Aug 16;60(11):2367–2378. doi: 10.1002/mnfr.201600290

Table 1.

Phenolic content of lettuces powders and lettuce supplemented diets (mean ± SD).

RSL GL RSL GL
mg/g DW lettuce mg/g diet


Chlorogenic acid 31.1 ± 1.1 0.9 ± 0.0 2.0 0.06
Quercetin 3-glucoside 2.1 ± 0.1 - 0.1
Quercetin malonyl-glucoside 29.8 ± 0.7 0.9 ± 0.0 1.9 0.06
Cyanidin 3-glucoside 0.6 ± 0.1 - 0.0
Cyanidin malonyl-glucoside 33.4 ± 0.6 - 2.1
Total polyphenols 78 ± 3.47 11 ± 1.5 5.0 0.7
Trolox equivalence 3083 ± 233 744 ± 214 197 48

Red lettuce: protein 27.3%, carbohydrate 47.7%, fat 3.7%, and fiber 7.8%

Green lettuce: protein 18.4%, carbohydrate 56.6%, fat 2.6%, and fiber 7.4%