Effect of Partial Substitution of NaCl by Non-Sodium Salts on the Quality of Low-Salt Black Carp
The author compared the salt-reduction effect of different non-sodium substitute salts in the process of low-salt black carp(Mylopharyngodon piceus)curing,and selected the suitable types and substitution ratios of these salts.Using fresh black carp as raw materials,the effects of potassium chloride(KCl),potassium lactate(KL),salty peptide,and the combination of KCl and KL on the indicators of fat oxidation,protein degradation and sensory scores of black carp curing were studied at substitution ratios of 20％and 50％.The results indicated that:in KCl replacement group,the moisture mass fraction and pH of black carp decreased,and the hardness of the fish meat increased,but the colour was not significantly different from the control group(P＞0.05).The fat oxidation effect in the 50％KCl replacement group was significant,but the total salt mass fraction was relatively high.In the 20％KCl replacement group,the biogenic amine mass fraction and TVB-N value of fish meat were reduced,and the highest sensory score was achieved.In the KL replacement group,the moisture mass fraction,pH,and fat mass fraction of black carp decreased.In the 20％KL replacement group,the fat oxidation of the fish meat was more pronounced,but the total salt mass fraction was higher.There were no significant differences between TVB-N value,colour and biogenic amine mass fraction compared to the control group(P＞0.05).In the salty peptide replacement group,the fat mass fraction of black carp was higher,the safety of the fish meat was lower,and its flavor,odor and acceptability were poorer.The KCl and KL replacement group exhibited the best effect of inhibiting fat oxidation of the fish meat,but tyramine mass fraction was higher.The addition of citric acid in the KCl and KL replacement group decreased the pH of the fish meat,making it more acidic.Based on the overall analysis,KCl was identified as the best alternative salt for black carp,with the optimal substitution ratio being 20％.
万方数据
维普
