两种保鲜液对南国梨保鲜效果的比较

Comparison of 2 types of fresh-keeping-liquids for Nanguo pears

目的探究两种保鲜液对南国梨保鲜效果。方法测定南国梨样品的外观变化、失重率、酸度及总糖含量的变化。结果两种保鲜液均具有良好的保鲜效果。保鲜液2的保鲜效果更明显,用此保鲜液制成的保鲜纸包装样品,35 d后果品外观良好,失重率比对照组降低了1.76%,酸度减少了0.07%。说明这种保鲜液制成的保鲜纸能有效地减少水分散失、保持果品风味。结论两种保鲜液对南国梨均具有良好的保鲜效果,将对发酵型天然保鲜剂的系统研究奠定基础。

Objective To explore the preservation effect of 2 preservative liquid on Nanguo pear. Methods The appearance of Nanguo pear, weight loss rate, and the change of acidity and total sugar as indicators were detected.Results The 2 kinds of preservative liquid had a good fresh-retaining effect. Preservation effect of fliquid 2 was more obvious. Samples packed by paper made of the preservative liquid showed a good appearance, with its weight loss rate reduced 1.76% and acidity decreased 0.07% after 35 d compare to the control group. The paper with the preservative liquid could effectively reduce water retention and keep the fruit flavor.Conclusion The 2 kinds of preservative solution have a good preservation effect to the Nanguo pears, which will lay a research foundation for fermentation type of natural preservative agent.