. 2017 Aug 11;9(8):863. doi: 10.3390/nu9080863

Table 2.

Lightness (L*), redness (a*) and yellowness (b*) scores of fortified lentil samples prepared using FeSO₄·7H₂O, NaFeEDTA and FeSO₄·H₂O at concentrations ranging from 100 to 3200 ppm after six months and after one year of storage.

Fe Concentration (ppm)	Lightness (L*)			Redness (a*)			Yellowness (b*)
Fe Concentration (ppm)	Initial	After 6 Months	After One Year	Initial	After 6 Months	After One Year	Initial	After 6 Months	After One Year
FeSO₄·7H₂O fortified samples
Control	50.6 ± 0.4 ^a	50.8 ± 0.2 ^a	51.0 ± 0.2 ^a	31.5 ± 0.2 ^a	31.3 ± 0.2 ^a	30.6 ± 0.6 ^a	41.6 ± 1.0 ^a	41.2 ± 1.0 ^a	40.3 ± 1.0 ^a
200	49.9 ± 0.6 ^ab	50.6 ± 0.6 ^a	52.0 ± 0.5 ^b	29.7 ± 0.8 ^b	29.4 ± 0.8 ^b	28.8 ± 0.8 ^b	40.5 ± 0.1 ^b	38.9 ± 0.1 ^b	37.9 ± 0.1 ^b
800	49.6 ± 0.2 ^b	50.3 ± 0.1 ^a	51.5 ± 0.0 ^b	27.4 ± 0.3 ^c	26.8 ± 0.2 ^c	25.8 ± 0.3 ^ac	37.8 ± 0.3 ^c	36.4 ± 0.3 ^c	34.6 ± 0.3 ^c
1600	46.2 ± 0.5 ^c	46.9 ± 0.5 ^b	48.5 ± 0.4 ^c	24.6 ± 0.7 d	24.9 ± 0.6 ^d	25.5 ± 1.2 ^c	36.4 ± 0.1 ^d	33.9 ± 0.1 ^d	34.0 ± 0.1 ^c
2400	43.9 ± 0.2 ^d	44.5 ± 0.1 ^c	45.8 ± 0.2 ^c	22.6 ± 0.2 ^e	22.2 ± 0.1 ^e	21.3 ± 0.2 ^d	32.0 ± 0.3 ^e	31.2 ± 0.1 ^e	30.0 ± 0.4 ^d
3200	42.1 ±0.6 ^e	42.7 ± 0.6 ^d	43.9 ± 0.6 ^d	21.3 ± 0.8 ^f	34.4 ± 0.9 ^f	20.3 ± 1.2 ^d	30.0 ± 0.2 ^f	29.7 ± 0.7 ^f	28.6 ± 0.3 ^e
NaFeEDTA fortified samples
Control	50.5 ± 0.4 ^a	50.8 ± 0.2 ^a	50.8 ± 0.2 ^a	31.5 ± 0.2 ^a	31.3 ± 0.3 ^a	30.6 ± 0.6 ^a	41.6 ± 0.3 ^a	41.2 ± 0.1 ^a	40.3 ± 0.7 ^a
200	50.4 ± 0.1 ^a	51.0 ± 0.2 ^a	51.0 ± 0.2 ^a	31.6 ± 0.7 ^a	31.1 ± 0.8 ^a	30.3 ± 0.8 ^a	41.9 ± 0.1 ^a	41.5 ± 0.1 ^a	40.6 ± 0.3 ^a
800	50.1 ± 0.2 ^a	50.6 ± 0.6 ^a	50.6 ± 0.6 ^b	31.1 ± 0.3 ^a	30.5 ± 0.2 ^a	29.0 ± 0.5 ^b	40.6 ± 0.9 ^b	39.3 ± 0.4 ^a	36.9 ± 0.8 ^b
1600	48.8 ± 0.1 ^b	52.0 ± 0.5 ^b	52.0 ± 0.5 ^b	29.4 ± 0.3 ^b	29.1 ± 0.2 ^b	28.6 ± 0.4 ^b	38.9 ± 0.2 ^c	38.2 ± 0.2 ^b	36.6 ± 0.5 ^b
2400	47.5 ± 0.2 ^c	50.3 ± 0.1 ^c	50.3 ± 0.1 ^c	27.5 ± 1.3 ^c	27.0 ± 1.2 ^c	26.1 ± 1.1 ^c	36.3 ± 0.7 ^d	35.8 ± 0.6 ^c	34.6 ± 0.6 ^c
3200	46.4 ± 0.5 ^d	51.5 ± 0.0 ^d	51.5 ± 0.0 ^c	27.8 ± 0.4 ^c	27.4 ± 0.4 ^c	26.5 ± 0.4 ^c	36.9 ± 0.7 ^d	36.4 ± 0.8 ^c	35.2 ± 0.9 ^c
FeSO₄·H₂O fortified samples
Control	50.5 ± 0.4 ^a	50.5 ± 0.4 ^a	50.8 ± 0.2 ^a	51.2 ± 0.3 ^a	31.5 ± 0.2 ^a	31.3 ± 0.2 ^a	30.6 ± 0.6 ^a	41.6 ± 0.3 ^a	41.2 ± 0.1 ^a
200	51.1 ± 0.5 ^a	51.1 ± 0.5 ^a	51.3 ± 0.3 ^b	51.7 ± 0.3 ^b	30.0 ± 0.7 ^b	29.9 ± 0.7 ^a	29.8 ± 0.7 ^b	39.9 ± 0.1 ^b	39.6 ± 0.1 ^b
800	49.3±0.7 ^b	49.7 ± 0.7 ^b	50.4 ± 0.5 ^b	27.9 ± 0.3 ^c	27.6 ± 0.4 ^c	27.1 ± 0.4 ^a	37.3 ± 0.9 ^c	36.9 ± 0.4 ^c	36.5 ± 0.8 ^c
1600	46.9 ± 0.7 ^c	47.3 ± 0.4 ^c	48.1 ± 0.2 ^c	25.4 ± 0.3 ^d	25.4 ± 0.3 ^d	25.4 ± 0.4 ^c	34.6 ± 0.2 ^d	34.6 ± 0.2 ^d	34.6 ± 0.5 ^d
2400	44.4 ± 0.6 ^d	44.7 ± 0.4 ^d	45.4 ± 0.4 ^d	23.3 ± 0.7 ^e	22.8 ± 0.7 ^e	21.9 ± 0.9 ^d	32.2 ± 0.7 ^e	31.9 ± 0.6 ^e	30.2 ± 0.6 ^e
3200	42.6 ± 0.3 ^e	42.6 ± 0.3 ^e	42.7 ± 0.5 ^e	22.7 ± 0.7 ^e	22.1 ± 0.7 ^e	21.1 ± 0.8 ^d	31.5 ± 0.7 ^e	30.9 ± 0.8 ^f	29.8 ± 0.9 ^f

^a Mean ± SD. Mean scores for lightness (L*), redness (a*) and yellowness (b*) score followed by different letters within columns are significantly different (p < 0.001).