Food-to-Food Fortification of a Traditional Pearl Millet Gruel with a Natural Source of β-Carotene (Sweet Potato) Improves the Bioaccessibility of Iron and Zinc

Table 1

Composition of simulated digestive fluids.

		SSF	SGF	SIF
		pH 7	pH 3	pH 7
Constituents	Concentration (mmol.L^−1)	Volume in the fluid (mL)	Volume in the fluid (mL)	Volume in the fluid (mL)
KCl	0.5	30.2	20.7	13.6
KH2PO4	0.5	7.4	2.7	1.6
NaHCO3	1	13.6	37.5	85
NaCl	2	-	35.4	19.2
Mg2SO4	0.15	1	1.2	2.2
(NH4)2SO4	0.5	0.12	1.5	-

SSF: simulated salivary fluid; SGF: simulated gastric fluid; SIF: simulated intestinal fluid.