From:  Development of a healthy cookie using lemon peel powder

 Physicochemical and antioxidant properties of lemon peel powder.

Physicochemical propertiesValueAntioxidant propertiesValue
Moisture (%)19.26 ± 0.42TPC1 (mg 100 g–1)852.07 ± 157.13
Ash (%)3.64 ± 0.05TPC2 (mg 100 g–1)259.15 ± 57.39
Fat (%)1.56 ± 0.12TPCT (mg 100 g–1)1,111.22 ± 150.35
Protein (%)8.27 ± 0.01ABTS1 (µmol 100 g–1)1,227.74 ± 159.56
Carbohydrate (%)67.27 ± 0.45ABTS2 (µmol 100 g–1)566.55 ± 153.67
Crude fiber (%)15.05 ± 0.77ABTST (µmol 100 g–1)1,794.29 ± 107.47
L*80.13 ± 0.07FRAP1 (µmol 100 g–1)4,790.26 ± 1,069.78
a*–3.97 ± 0.08FRAP2 (µmol 100 g–1)649.07 ± 176.41
b*40.60 ± 0.14FRAPT (µmol 100 g–1)5,439.33 ± 895.51
--Vitamin C (mg 100 g–1)18.03 ± 1.79

L*: lightness; a*: redness/greeness; b*: yellowness/blueness; TPC1: total phenolic content of extract 1; TPC2: total phenolic content of extract 2; TPCT: sum of extracts 1 and 2; ABTS1: ABTS of extract 1; ABTS2: ABTS of extract 2; ABTST: sum of extracts 1 and 2; FRAP1: FRAP of extract 1; FRAP2: FRAP of extract 2; FRAPT: sum of extracts 1 and 2. ABTS: 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid); FRAP: ferric reducing antioxidant power; TPC: total phenolic content.