Studies on substitution of SO2 in pearl onion production

acide ascorbique acide citrique acido ascorbico acido citrico agent de conservation agent de texture allium cepa aroma ascorbic acid blanchissement bleaching citric acid color colour couleur dioxyde de soufre encurtidos estabilizadores flaveur flavour odeur olor pickles preservadores preservatives smell stabilizers sulfure sulfuros sulphides sulphur dioxide textura texture