ASCORBYL-2-SULFATE COMPARED WITH ASCORBIC-ACID IN ATLANTIC SALMON - UPTAKE AND DISTRIBUTION CONFIRMED BY MASS-SPECTROSCOPY

This paper reports an in-depth approach that identifies ascorbyl-2-sul fate (AS) in gastric, blood, liver, and muscle tissues of Atlantic sal mon (Salmo salar), To insure the identity of the AS, the study utilize d the latest high-performance liquid chromatography (HPLC) technology plus electron ionization mass spectrometry (EIMS), Just before saltwat er adaptation stage, juvenile Atlantic salmon were force-fed AS, ascor bic acid (AA), and a molecular-equivalent combination of the two, Afte r tissue analyses for AA and AS were performed by HPLC separation, the HPLC peaks were identified by EIMS, The data collected in this study indicate that Atlantic salmon can absorb AS through the gastric tissue when forced-fed AA and AS as described, The data also indicate that A S is transported through the blood to the liver, There is evidence to indicate that AS is converted to AA In the livers of these salmon, In addition, the muscle tissue contained a large portion of AA and AS.