Abstract
The influence of the addition of mustard seed and acid whey on the stability of nitrite-free organic fermented sausage during 90 days of vacuum storage was investigated by measuring primary and secondary products of lipid oxidation, changes in fatty acid composition and antioxidant capacity, as well as water activity. The native and autoclaved mustard seed with acid whey can be used in the composition of organic fermented sausage without nitrite with beneficial effect on pH, water activity, antioxidant capacity and oxidation stability during vacuum storage. The use of the combination of acid whey and mustard seed resulted in an effective decrease in pH of organic fermented sausage during fermentation. The inclusion of mustard seed to the sausage with acid whey significantly increased the capacity of stuffing to capture the radical cation ABTS. During the whole storage period the TBARS (thiobarbituric acid reactive substances) values of salted sausage samples with the addition of acid whey with combination of mustard seed were similar to the control sample with curing agent. In general, results suggest that mustard seed with combination of acid whey can be successfully applied to protect organic fermented sausages without nitrite from lipid oxidation.
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