[Practical tests to improve the colloidal stability of beer with siliceous gel combined with ascorbic acid]

acide acide ascorbique acido ascorbico acids additif alimentaire aditivos alimentarios agent de texture ascorbic acid beers brassage brewing calidad cervezas chemical composition composition chimique enriquecimiento de los alimentos estabilizadores food additives food enrichment food technology malteado quality stabilizers technologie alimentaire