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鲜切保鲜技术常见保鲜技术？

问答题

2022-02-24 15:28

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正确答案

①低温保鲜：温度控制在4℃左右
②防腐剂保鲜：EDTA-2Na、乳酸链球菌
③涂膜保鲜：海藻钠、卡拉胶、壳聚糖
④MAP保鲜，提高CO₂，降低O₂可以充臭氧，利用其强氧化性，消毒杀菌
⑤栅栏技术：
栅栏因子：高温处理、低温冷藏、降低水分活度、酸化、氧化还原电势、防腐剂、竞争性菌群以及辐照（8个）
“魔方”原理指的是某种栅栏因子的组合使用可大大降低另一种栅栏因子的使用强度或不采用另一种栅栏因子而达到同样的贮存效果。
“天平”原理指食品中某一单独栅栏因子的微小变化即可对其货架稳定性产生显著影响。
⑥基因工程保鲜

试题解析

标签：果蔬加工工艺学食品科学技术大学试题工学

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