Caracterización física y química de harinas industriales nixtamalizadas de maíz de consumo humano en América Central / Physical and chemical characterization of industrial nixtamalized corn flour for human consumption in Central America
Arch. latinoam. nutr
;
51(3): 309-313, sep. 2001.
Artigo
em Espanhol
| LILACS
| ID: lil-333622
ABSTRACT
The objective of this study was the characterization of industrial nixtamalized maize flour for human consumption and which are marketed in Central America for some selected physical and chemical properties which may contribute to food composition information and help nutrition and micronutrient fortification programs. A total of 12 brands purchased in triplicate were obtained from supermarkets in Guatemala, El Salvador and Honduras. These samples were kept under refrigeration until analyzed. The physical parameters measured and results were the following particle size with most samples having a high percentage of particles greater than 60 mesh, pH (5.4-7.5), water absorption index (WAI) (3.4-4.0 g gel/g sample), water soluble index (WSI) (4.8-7.8 g/100 g) and flour density (0.410-0.547 g/ml). The differences were statistically significant for all parameters measured, except for WAI. The chemical characteristics included, moisture, protein, fat, ash and dietetic fiber. Differences between flour samples were statistically significant except for fat content. Protein content was low, ranging between 6.7-8.1 g/100 g and total dietary fiber varied between 7.7-12.0 g/100 g. The samples were analyzed for phytic acid with a variation from 632 to 903 mg/100 g, with statistical significant differences. The samples were also analyzed for total and soluble (pH 7.5) iron, phosphorus, calcium, potassium, zinc, copper, manganese, and magnesium. The difference in the iron and calcium content between flour samples were statistically significant. The physical and chemical variability found between flour samples of nixtamalized maize was relatively high and it is recommended to establish quality standards through raw material and process standardization for greater effectiveness of nutrition programs and activities on micronutrient fortification which may be pursued in the future.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Zea mays
/
Farinha
/
Manipulação de Alimentos
Limite:
Humanos
País/Região como assunto:
América Central
Idioma:
Espanhol
Revista:
Arch. latinoam. nutr
Assunto da revista:
Bioqu¡mica
/
EducaÆo Alimentar e Nutricional
/
Fenmenos Fisiol¢gicos da NutriÆo
/
Microbiologia de Alimentos
/
NUTRICAO
Ano de publicação:
2001
Tipo de documento:
Artigo
País de afiliação:
Guatemala
Instituição/País de afiliação:
Universidad del Valle de Guatemala/GT
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