HOME > EDICIONES > Año 2002, Volumen 52 - Número 2
Trabajos de Investigación
Aminoácidos esenciales y no esenciales de harinas de cereales infantiles en distintas fases de procesado industrial y su relación con índices químicos de la calidad proteica
Darío Pérez Conesa, Gaspar Ros Berruezo, María Jesús Periago Castón
Facultad de Veterinaria-Universidad de Murcia. Campus de Espinardo. Murcia, España.
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SUMMARY
Essential and non-essential amino acid content of infant cereals in different stages of industrial processing and its relationship with chemical scores of protein quality
The effect of technological process on essential and non essential amino acid contents in infant cereals, the protein and essential amino acids infant dietary requeriments cover by infant cereals, and its quality using some chemical scores has been studied. Mix of raw flours, mix of roasted flours, mix of enzymatically, hydrolysed and drum dried flours and commercial infant cereals of four different types of infant cereals: "Multicereal" and "Wheat" (both with gluten), "Growth" and "Rice and carrot" (both gluten free) were evaluated. The technological process only show a significant effect on lysine, arginine (P<0,05) and valine (P<0,01) contents in "Rice and carrot" infant cereal. Protein of any studied infant cereals covers 17,4% of the daily infant requeriments in, while for essential amino acids will cover about 25 to 200% until the third year of life. As we expected, the limitant amino acid was lysine in all flours. Chemical scores only were affected by technological treatment in "Rice and carrot" infant cereal, showing the gluten-free infant cereals higher values (36,7-69,5%) than gluten infant cereals (18,1-30,7%) at the end of the processing. It should be standing out "Growth" infant cereal, beacuse of it has a higher lysine content than other infant cereals due to the main ingredients rice and corn.
Key words: Infant cereals, essential and non-essential amino acids, in vitro protein digestibility, chemical score, protein digestibility-corrected amino acid scoring.
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PRIVACIDAD | ACCESIBILIDAD
ALAN-VE ISSN 0004-0622 - Depósito Legal: pp 199602DF83
Sociedad Latinoamericana de Nutrición
Producción editorial en Venezuela: Capítulo Venezolano - RIF: J-30843129-0
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