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1)  vacuum freecing-dry
空冷冻干燥
1.
then compare effect of the nature of physical and chemical on condition of vacuum freecing-dry with on the condition of heat-force dry.
分析了真空冷冻干燥基本原理与过程特点。
2)  vacuum freeze dryer
真空冷冻干燥机
1.
Study on a temperature control model and its system of vacuum freeze dryer;
空冷冻干燥机温度控制模型与系统的研究
3)  Vacuum freeze drying
真空冷冻干燥
1.
Investigations of vacuum freeze drying process of taro crisp slice;
空冷冻干燥香芋脆片生产工艺研究
2.
Heating system of new generation food vacuum freeze drying machine;
食品真空冷冻干燥机加热系统
3.
Study on the vacuum freeze drying craft of Oviductus Rana;
林蛙油真空冷冻干燥工艺研究
4)  vacuum freeze-drying
真空冷冻干燥
1.
Research on vacuum freeze-drying processing technology of kiwifruit piece;
猕猴桃片真空冷冻干燥工艺研究
2.
Application of vacuum freeze-drying Technology in fruit and vegetable processing;
浅谈真空冷冻干燥在果蔬贮藏加工中的应用
3.
Study on Vacuum Freeze-drying Technology of Strawberry Powder;
空冷冻干燥工艺生产草莓粉的技术研究
5)  Freeze-drying [英]['fri:z'drai]  [美]['friz'draɪ]
真空冷冻干燥
1.
Optimized Experiment on Technological Parameters for Freeze-drying of Pteridium Aquilinum;
蕨菜真空冷冻干燥工艺参数的优化试验
2.
Experiment and research on the freeze-drying for the banana powder;
香蕉粉真空冷冻干燥实验研究
3.
The optimal processing data of strawberry fruit pulp were derived based on the loss ratios of VC and red pigment and freeze-drying time.
以草莓果浆冻干过程中VC、草莓红色素和冻干时间为指标,对真空冷冻干燥过程进行优化,得到的最佳工艺参数为:物料解吸时的表面最高温度48℃,升华初始干燥仓压力26 Pa,装料厚度7 mm。
6)  Vacuum freeze-dry
真空冷冻干燥
1.
Research on vacuum freeze-dry technology of coriander;
芫荽真空冷冻干燥工艺的研究
2.
Study on the vacuum freeze-dry technics of aqnilinum;
空冷冻干燥蕨菜工艺的研究
3.
In this paper,we adopt vacuum freeze-dry technique and studied the effect of color preserving,shelf temperature,material weight on freeze-dry time and quality of pear Chinese date.
采用真空冷冻干燥技术,探讨了护色、搁板温度、物料厚度等因素对梨枣冻干时间、品质的影响。
补充资料:冷冻干燥
      又称升华干燥,将物料冷冻至水的冰点以下,并置于高真空(10~40Pa)的容器中,通过供热使物料中的水分直接从固态冰升华为水汽的一种干燥方法。冷冻干燥操作中使物料处于冰冻状态,物料内部结构可以保持不变,所以特别适用于处理凝胶物料。一般干燥方法的干燥温度需在冰与物料的共融点之上,干燥后产品将失去原有凝胶性质。又如用一般的真空干燥法处理含盐的生物制品时,表层会形成盐壳;而用冷冻干燥法可以避免发生这种现象。冷冻干燥也适用于处理热敏性和易氧化的物料,如抗菌素、生物制剂等。蔬菜、水果、鲜鱼、肉类等食品经冷冻干燥后,不仅可以久藏,而且能保持原来的多孔结构,吸收水分后可以恢复原有的色香味。
  
  冷冻干燥的供热速率应当使冰以足够的速率升华,同时又不使物料的温度升高到熔点。实验表明,只有在除去了95%以上的水分之后,才允许物料温度升高到室温。冷冻干燥所用的载热体,是常温或温度稍高的任何液体或气体。冷冻干燥器(见彩图)往往不需保温,有时甚至以导热性较好的材料制造,以充分利用外界热量。
  

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