| Popis: |
The article mainly investigated the effect of modified atmosphere packaging (MAP) on quality characters of sturgeon caviar during storage at 0 °C . MAP tested included MAP1 (100%CO2), MAP2 (70%CO2+30%N2), MAP3 (50%CO2+50%N2), MAP4 (30%CO2+70%N2) and MAP5 (100%N2). In order to let gas mixture interact with caver samples, the caviar directly exposed to modified atmosphere in MAP groups, and the control group (AIR) is prepackaged in tins and maintained in the air. Color properties, biochemical analyses (the volatile basic nitrogen values (TVB-N), the thiobarbituric acid values (TBA )) of sturgeon caviar were recorded before packaging (day 0) and after 1, 3 and 5 months of storage. The results showed that the MAP treatments in the study may delay the protein deterioration to some extend and MAP4 group exposed a little advantage to L*. but MAP treatments didn’t show an positive effects on the a*, b*and TBA. |
