[Mineral bioaccessibility in yerba mate (Ilex paraguariensis St) infusions and mixtures with iron fortified milk]. / Bioaccesibilidad de minerales en infusiones de yerba mate (Ilex paraguariensis St) y en mezclas con leches fortificadas con hierro.

The bioaccesibility of various minerals in infusions of yerba male (mate cocido) and preparations with Fe-fortified milk was assessed to determine the influence of the infusions on the potential bioavailability of intrinsic minerals and fortified Fe. The dialyzability (D) of iron, calcium, magnesium and zinc was evaluated, as indicator of bioaccesibility in milk samples fortified with ferrous sulfate (FS), ferric bisglicinate GF) and EDTANaFe. Dialyzability was also evaluated in mixtures of milk with mate cocido and in infusions cooked with Fe-fortified milk. In each case the effect of ascorbic acid (AA) in a ratio Fe: AA 1:4 was studied. In the mate cocido FeD was zero and increased to 15% with the addition of AA. The FeD in milk with SF, BGF and EDTANaFe (1.2, 1.0 and 27.4 respectively), increased with the addition of AA to 2.9, 3.5 and 24.8. The FeD in the mixture milk: mate cocido was 4.7%, 5.7% and 31.2% for SF, BGF and EDTANaFe respectively. With the addition of AA was 13.5%, 13.7% and 25.7%. In infusions cooked with SF fortified milk, the values were lower than those of the mixture. The CaD did not show significant changes in Fe fortified milk and its preparations with yerba mate, while the MgD and ZnD only showed a significant reduction in infusion cooked with Fe-fortified milk. The use of infusions of yerba mate does not provide significant amounts of minerals. However, its use in mixtures with milk will not adversely affect the availability of Fe in that matrix.

Disponibilidad potencial in vitro de hierro y zinc en una dieta infantil con pan fortificado con distintas fuentes de hierro o con agregado de promotores de la absorción / Iron and zinc in vitro potential availability in an infant diet with fortified bread with different iron sources or with the adition of different iron absorption promoters

Los alimentos complementarios más utilizados son las dietas caseras. En el presente trabajo se evaluó la disponibilidad de hierro y zinc en una dieta infantil de consumo habitual conteniendo pan fortificado con diferentes fuentes de hierro: sulfato ferroso, bisglicinato ferroso, NaFeEDTA. También se utilizó pan sin fortificar con agregado de ácido ascórbico, citrato de sodio o Na2EDTA como promotores de la absorción, combinada con diversas bebidas. La dieta (papa, zapallo, sémola, pan y manzana) se combinó con agua, leche, té, bebida cola y bebida artificial a base de naranja. La dializabilidad (D) mineral, como indicador de la disponibilidad potencial fue determinada utilizando un método in vitro. El análisis estadístico se realizó utilizando ANOVA, con test de Tukey a posteriori. No hubo diferencias significativas en la DFe entre las dietas del pan fortificado con sulfato o bisglicinato; con el NaFeEDTA aumentó significativamente (p<0,05). El aumento de la DFe fue mayor en las dietas que tenían panes con promotores que en las que tenían panes fortificados. La bebida a base de naranja aumentó la DFe, mientras que el té y la leche la disminuyeron significativamente (p<0,05). La DZn aumentó en forma significativa cuando el pan estaba fortificado con sulfato o NaFeEDTA, pero no cuando se fortificó con bisglicinato. El agregado de té o leche disminuyó la DZn mientras que la bebida a base de naranja la aumentó significativamente (p<0,05). En relación a los promotores, las mayores DFe y DZn se observaron en las dietas con el pan sin fortificar, con agregado de Na2EDTA.

Home-made diets are the most frequently used complementary foods. In the present work we evaluated iron and zinc availability in a usually consumed infant diet containing either iron-fortified bread with different iron sources: ferrous sulfate, ferrous bisglycinate, NaFeEDTA. We also used non-fortified bread with absorption promoters: ascorbic acid, sodium citrate, Na2EDTA, combined with different beverages. The diet (potato, pumpkin, grits, bread, and apple) was combined with water, milk, tea, a soft drink and an orange-based artificial drink. Mineral dialyzability (D) as an indicator of potential availability was determined using an in vitro method. Statistical analysis was performed by ANOVA, and a posteriori Tukey test. There were no significant differences in FeD between diets with ferrous sulfate or ferrous bisglycinate fortified bread; in NaFeEDTA fortified bread it increased significantly (p<0.05). Iron D increase was greater in diets with bread containing absorption promoters than in those with fortified bread. The orange-based artificial drink increased FeD, while tea and milk decreased it significantly (p<0.05). Zinc D increased significantly when the bread was fortified either with ferrous sulfate or NaFeEDTA, but remained unchanged in diets with ferrous bisglycinate fortified bread. The addition of tea or milk decreased ZnD while the orange-based artificial drink increased it significantly (p<0.05). Regarding absorption promoters, the greater values both in FeD and ZnD were observed in diets with iron nonfortified bread containing Na2EDTA.

Bioaccesibilidad de minerales en infusiones de yerba mate (Ilex paraguariensis St) y en mezclas con leches fortificadas con hierro

Se evaluó la bioaccesibilidad de diversos minerales en infusiones de yerba mate y en preparaciones con leche fortificada con Fe para determinar la influencia de las infusiones en la biodisponibilidad potencial de minerales intrínsecos y del Fe de fortificación. Se evaluó la dializabilidad (D) de hierro, calcio, magnesio y zinc, como indicador de la bioaccesibilidad, en muestras de leche fortificada con sulfato ferroso (SF), bisglicinato férrico (BGF) y EDTANaFe. También se evaluó en mezclas de leche con mate cocido y en infusiones-cocciones con leches fortificadas. En cada caso se estudió la acción del ácido ascórbico (AA) en una relación Fe:AA 1:4. En el mate cocido la DFe fue nula y aumentó a 15% con el agregado de AA. La DFe en leche con SF, BGF y EDTANaFe (1.2; 1.0 y 27.4 respectivamente), se incrementó con el agregado de AA a 2.9; 3.5 y 24.8. La DFe en la mezcla leche:mate cocido resultó 4.7%; 5.7% y 31.2% para SF, BGF y EDTANaFe respectivamente. Con el agregado de AA resultó de 13.5%; 13.7% y 25.7% En infusiones- cocciones en leche fortificada con SF, los valores resultaron menores a los de la mezcla. La DCa no presentó variaciones importantes en las leches fortificadas y sus preparaciones con yerba mate, mientras que la DMg y la DZn solo mostraron una disminución significativa en la infusión-cocción. El consumo de infusiones de yerba mate no aporta cantidades significativas de minerales. Sin embargo, su consumo en mezclas con leche no afectaría negativamente la disponibilidad de Fe en dicha matriz.

The bioaccesibility of various minerals in infusions of yerba mate (mate cocido) and preparations with Fe-fortified milk was assessed to determine the influence of the infusions on the potential bioavailability of intrinsic minerals and fortified Fe. The dialyzability (D) of iron, calcium, magnesium and zinc was evaluated, as indicator of bioaccesibility in milk samples fortified with ferrous sulfate (FS), ferric bisglicinate GF) and EDTANaFe. Dialyzability was also evaluated in mixtures of milk with mate cocido and in infusions cooked with Fe-fortified milk. In each case the effect of ascorbic acid (AA) in a ratio Fe: AA 1:4 was studied. In the mate cocido FeD was zero and increased to 15% with the addition of AA. The FeD in milk with SF, BGF and EDTANaFe (1.2, 1.0 and 27.4 respectively), increased with the addition of AA to 2.9, 3.5 and 24.8. The FeD in the mixture milk: mate cocido was 4.7%, 5.7% and 31.2% for SF, BGF and EDTANaFe respectively. With the addition of AA was 13.5%, 13.7% and 25.7%. In infusions cooked with SF fortified milk, the values were lower than those of the mixture. The CaD did not show significant changes in Fe fortified milk and its preparations with yerba mate, while the MgD and ZnD only showed a significant reduction in infusion cooked with Fe-fortified milk. The use of infusions of yerba mate does not provide significant amounts of minerals. However, its use in mixtures with milk will not adversely affect the availability of Fe in that matrix.

[Iron and zinc in vitro potential availability in an infant diet with fortified bread with different iron sources or with the addition of different iron absorption promoters]. / Disponibilidad potencial in vitro de hierro y zinc en una dieta infantil con pan fortificado con distintas fuentes de hierro o con agregado de promotores de la absorción.

Home-made diets are the most frequently used complementary foods. In the present work we evaluated iron and zinc availability in a usually consumed infant diet containing either iron-fortified bread with different iron sources: ferrous sulfate, ferrous bisglycinate, NaFeEDTA. We also used non-fortified bread with absorption promoters: ascorbic acid, sodium citrate, Na2EDTA, combined with different beverages. The diet (potato, pumpkin, grits, bread, and apple) was combined with water, milk, tea, a soft drink and an orange-based artificial drink. Mineral dialyzability (D) as an indicator of potential availability was determined using an in vitro method. Statistical analysis was performed by ANOVA, and a posteriori Tukey test. There were no significant differences in FeD between diets with ferrous sulfate or ferrous bisglycinate fortified bread; in NaFeEDTA fortified bread it increased significantly (p<0.05). Iron D increase was greater in diets with bread containing absorption promoters than in those with fortified bread. The orange-based artificial drink increased FeD, while tea and milk decreased it significantly (p < 0.05). Zinc D increased significantly when the bread was fortified either with ferrous sulfate or NaFeEDTA, but remained unchanged in diets with ferrous bisglycinate fortified bread. The addition of tea or milk decreased ZnD while the orange-based artificial drink increased it significantly (p < 0.05). Regarding absorption promoters, the greater values both in FeD and ZnD were observed in diets with iron nonfortified bread containing Na2EDTA.

Mineral dialyzability in milk and fermented dairy products fortified with FeNaEDTA.

Iron, zinc, and calcium dialyzability and ascorbic acid (AA) concentrations were evaluated in milk and yogurt fortified with FeNaEDTA (FE) or ferrous sulfate (FS) as a control, with or without AA addition. The values obtained for FE iron dialyzability in milk were much higher than those obtained for FS. The addition of AA to milk improved Fe dialyzability when using FS and slightly decreased Fe dialyzability in the FE-fortified nonfermented samples. Milk fermentation increased iron availability from both iron sources. Zinc and calcium dialyzability in products containing any of the two iron sources was increased in fermented milks. EDTA improved Zn dialyzability from intrinsic zinc in every manufactured dairy product. Whereas for milks fortified with FS and stored at 4 degrees C for 24 h, the AA content remained close to the original concentration, a higher AA degradation was observed when milks were fortified with FE.

Edulcorantes no nutritivos en bebidas sin alcohol: estimación de la ingesta diaria en niños y adolescentes / Non nutritive sweeteners in non alcoholic drinks: estimation of the daily intake in children and adolescents

Muchas bebidas sin alcohol que se ofrecen en el mercado no destacan en su rotulado que corresponden a bebidas dietéticas con el agregado de edulcorantes no nutritivos. El objetivo del presente trabajo fue calcular la ingesta diaria estimada de edulcorantes no nutritivos por parte de niños y adolescentes sanos, a través del consumo de este tipo de alimentos. Se analizaron encuestas de frecuencia de consumo de bebidas sin alcohol de 190 niños y adolescentes (3-18 años). Se solicitó que se detallaran las marcas de las bebidas más consumidas, con el fin de considerar para el cálculo de la ingesta diaria estimada los contenidos de edulcorantes declarados en los respectivos rótulos. Además se tuvo en cuenta el consumo diario de bebidas sin alcohol y peso corporal declarado en cada encuesta. La ingesta diaria estimada de individuos entre 3 y 18 años fue 2,61 mg/kg para ciclamato; 0,28 mg/kg para sacarina; 0,69 mg/kg para acesulfame K y 2,78 mg/kg para aspartame. Sólo en el caso del ciclamato se observaron tres individuos con una ingesta diaria estimada mayor a la ingesta diaria admisible.

Many non-alcoholic drinks commercially available do not emphasize on their labels that they correspond to light drinks. The objective of the present paper was to estimate the daily intake of non nutritive sweeteners by healthy children and adolescents through the consumption of non-alcoholic drinks. Food frequency questionnaires of non alcoholic drinks from 190 children and adolescents (3 to 18 years old) were analysed. The brands of the most consumed non-alcoholic drinks were requested in order to consider the quantity of the declared sweetener in the correspondent labels to estimate the daily intake. Moreover, the daily intake of nonalcoholic drinks and the body weight declared in each questionnaire was taken into account. The estimated daily intake of students from 3 to 18 years old was 2,61 mg/kg of cyclamate, 0,28 mg/kg of saccharin, 0,69 mg/kg of acesulfame-K and 2,78 mg/kg of aspartame. Only in the case of cyclamate there were three individuals with an estimated daily intake greater than the admissible daily intake.

Edulcorantes no nutritivos en bebidas sin alcohol: estimación de la ingesta diaria en niños y adolescentes / Non nutritive sweeteners in non alcoholic drinks: estimation of the daily intake in children and adolescents

Muchas bebidas sin alcohol que se ofrecen en el mercado no destacan en su rotulado que corresponden a bebidas dietéticas con el agregado de edulcorantes no nutritivos. El objetivo del presente trabajo fue calcular la ingesta diaria estimada de edulcorantes no nutritivos por parte de niños y adolescentes sanos, a través del consumo de este tipo de alimentos. Se analizaron encuestas de frecuencia de consumo de bebidas sin alcohol de 190 niños y adolescentes (3-18 años). Se solicitó que se detallaran las marcas de las bebidas más consumidas, con el fin de considerar para el cálculo de la ingesta diaria estimada los contenidos de edulcorantes declarados en los respectivos rótulos. Además se tuvo en cuenta el consumo diario de bebidas sin alcohol y peso corporal declarado en cada encuesta. La ingesta diaria estimada de individuos entre 3 y 18 años fue 2,61 mg/kg para ciclamato; 0,28 mg/kg para sacarina; 0,69 mg/kg para acesulfame K y 2,78 mg/kg para aspartame. Sólo en el caso del ciclamato se observaron tres individuos con una ingesta diaria estimada mayor a la ingesta diaria admisible.(AU)

Many non-alcoholic drinks commercially available do not emphasize on their labels that they correspond to light drinks. The objective of the present paper was to estimate the daily intake of non nutritive sweeteners by healthy children and adolescents through the consumption of non-alcoholic drinks. Food frequency questionnaires of non alcoholic drinks from 190 children and adolescents (3 to 18 years old) were analysed. The brands of the most consumed non-alcoholic drinks were requested in order to consider the quantity of the declared sweetener in the correspondent labels to estimate the daily intake. Moreover, the daily intake of nonalcoholic drinks and the body weight declared in each questionnaire was taken into account. The estimated daily intake of students from 3 to 18 years old was 2,61 mg/kg of cyclamate, 0,28 mg/kg of saccharin, 0,69 mg/kg of acesulfame-K and 2,78 mg/kg of aspartame. Only in the case of cyclamate there were three individuals with an estimated daily intake greater than the admissible daily intake.(AU)

[Composition and potential contribution of iron, calcium and zinc of bread and pasta made with wheat and amaranth flours]. / Composición y aporte potencial de hierro, calcio y zinc de panes y fideos elaborados con harinas de trigo y amaranto.

Amaranth, a traditional american crop that is nowadays given renewed importance, has good food potential value. The minerals contributed by the grain are quantitatively important. However, as the flour is obtained by total grinding of the grain, this process leads to the presence of anti-nutritional components, such as fitates, and therefore, the evaluation of the actual availability of the minerals of nutritional interest becomes necessary. The process of bread fermentation, plus the addition of fitases and enhancers of mineral availability such as citric and ascorbic acid, might improve mineral bioavailability. The objective of this work was to assess protein, ash, lipids and total dietary fiber content and evaluate the concentration and dialyzability of Fe, Zn and Ca (as mineral bioavailability indicator) in bread and pasta 100% wheat, and bread and pasta obtained by replacing 20% wheat flour (WF) with whole amaranth flour (WAF). Ascorbic acid (AA), citric acid (CA) and fitase were used as mineral bioavailability enhancers. The potential contribution of each mineral (PC) was calculated as each mineral concentration times its dialyzability. In 80:20 bread an increase of total dietary fiber and minerals, compared to 100% wheat products was observed. A maximum FePC in 80:20 bread was obtained with CA and fitase (0.55mg%). In pasta, the maximum effect was observed with CA (0.07 mg%). The CaPC was maximum in 80:20 pasta with CA (16.72 mg%). The greatest ZnPC was found in 80:20 bread with CA and fitase (0.40 mg%). The introduction of the WAF in fermented baked products with addition of CA and fitase allows to obtain nutritional advantages.

Influence of components of infant formulas on in vitro iron, zinc, and calcium availability.

The effect of casein content and Ca concentration on Fe, Zn, and Ca dialyzability was assessed using a response surface design. Tested casein levels were 5.31-13.75 g/L (34.8-90.2% of total protein). Whey protein was added to complete 15.25 g/L total protein. Calcium levels were adjusted with calcium citrate within a range between 417.4 and 804.9 mg/L. Through the experimental design utilized, we found that of both assessed factors, only the casein content significantly influenced Fe and Zn dialyzability. Protein composition did not influence calcium dialyzability, and calcium concentration did not affect either Fe or Zn dialyzability. No effect of casein-Ca on iron, zinc, and calcium dialyzability was found. According to these results, whey-dominant formulas are less prone to hamper mineral availability, and are therefore suitable in order to improve iron and zinc availability.