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Updated: Aug 8, 2026
11:56
A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells
Published on: April 11, 2014
Resumen
Las dosis altas de ácido ascórbico no afectan la estabilidad de la vitamina B12 en el estómago. Los estudios muestran que la vitamina B12 permanece sin cambios cuando se incuban comidas con ácido ascórbico, imitando las condiciones gástricas.
Área de la Ciencia:
- Ciencias de la Nutrición Ciencias de la Nutrición
- La bioquímica es la bioquímica.
Sus antecedentes:
- La vitamina B12 es esencial para la salud humana.
- El ácido ascórbico (vitamina C) es comúnmente consumido.
- Las posibles interacciones entre la vitamina B12 y el ácido ascórbico requieren investigación.
Objetivo del estudio:
- Para determinar si el ácido ascórbico afecta la estabilidad de la vitamina B12 en condiciones gástricas simuladas.
Principales métodos:
- Las comidas que contienen vitamina B12 fueron incubadas con ácido ascórbico a 37°C durante 30 minutos.
- Los procedimientos de extracción utilizan cianuro o metabisulfito para la protección de la vitamina B12.
- Comparación con estudios previos que informaron de la degradación.
Principales resultados:
- No se observó ningún cambio en los niveles de vitamina B12 cuando se protegió durante la extracción.
- Los informes anteriores de degradación se atribuyeron a métodos de protección incompletos.
- Las condiciones de laboratorio imitaban el entorno gástrico humano.
Conclusiones:
- El ácido ascórbico no degrada la vitamina B12 en el entorno gástrico.
- Las dosis altas de ácido ascórbico son seguras con respecto a la estabilidad de la vitamina B12 in vivo.
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