新鲜蔬菜贮藏时亚硝酸盐的含量变化

【摘要】 通过实验比较了五类不同蔬菜在自然通风、自然密封、冰箱直接放置、冰箱密封四种不同的贮藏条件下亚硝酸盐含量随时间的变化关系,发现在室温下贮藏蔬菜容易导致蔬菜腐烂,亚硝酸盐含量增加,而在冰箱密封的贮藏条件下有利于抑制植物体内酶的活性和微生物的生长,降低食物的呼吸强度,阻止亚硝酸盐在植物体内的生成。无论室温或冰箱保存,亚硝酸盐增长均会出现极大的峰值,以前者峰值最大。更多还原

【Abstract】 The content of nitrite in five kinds of veg etable were investig ated during10days.The content of nitrite increased during storag e at room temperature,and the veg etables were easy to spoil.The content of nitrite in veg etable could be reduced if stored in refrig erator,and activity of the enzyme and the microbe were inhibited under this condition.Neither storing at room temperature nor in refrig erator led to maximum concentration of nitrite in veg etable during1to4days.更多还原