Extrusion cooking of a high-fibre cereal product. 2. Effects on apparent absorption of zinc, iron, calcium, magnesium and phosphorus in humans.
1. The effect of extrusion cooking, using mild conditions, of a high-fibre cereal product on apparent small bowel absorption of zinc, iron, calcium, magnesium and phosphorus was studied. 2. Seven ileostomy subjects were studied during two periods (each of 4 d), on a constant low-fibre diet supplemented with either 54 g/d of a bran-gluten-starch mixture or the corresponding extruded product. 3. The apparent absorption of Zn, Mg and P was significantly decreased (P less than 0.05) during the period with extruded product compared with the period with bran-gluten-starch. No difference was found for Fe and Ca. 4. The negative effect of extrusion cooking of a product containing phytic acid on availability of Zn, Mg and P was small but could be of nutritional relevance in foodstuffs that are consumed frequently and in infant formulas.
Kivistö
B
B
Department of Clinical Nutrition, Gothenburg University, Sweden.
Andersson
H
H
Cederblad
G
G
Sandberg
A S
AS
Sandström
B
B
D000042:Absorption; D000328:Adult; D002118:Calcium / Q000493:pharmacokinetics; D003296:Cooking; D004043:Dietary Fiber / Q000493:pharmacokinetics; D005260:Female; D006801:Humans; D007501:Iron / Q000493:pharmacokinetics; D008274:Magnesium / Q000493:pharmacokinetics; D008297:Male; D008875:Middle Aged; D008903:Minerals / Q000493:pharmacokinetics*; D010758:Phosphorus / Q000493:pharmacokinetics; D015032:Zinc / Q000493:pharmacokinetics
D004043:Dietary Fiber; D008903:Minerals; D010758:Phosphorus; D007501:Iron; D008274:Magnesium; D015032:Zinc; D002118:Calcium