分子蒸馏

The distillate stream followed by saponification and acidulation was directly to concentrate VE by molecular distillation.

分子蒸馏馏出液经皂化、盐酸酸化、水洗干燥后作为分子蒸馏浓缩VE原料。

The distillate stream followed by saponification and acidulation was directly to concentrate V_E by molecular distillation.

分子蒸馏馏出液经皂化、盐酸酸化、水洗干燥后作为分子蒸馏浓缩VE原料。

Major research work and conclusions are summarized as follows:1 The development of molecular distillation are reviewed in respect of the principle, model research and application; The technical and structure parameters are analyzed with respect to the evaporation rate and separation factor.2 Based on analysis of heat transfer and mass transfer process in WFMD, the discretization forms of bow wave ordinary differential equations and film partial differential equations are obtained with Runge-Kutta method and finite difference method respectively.

主要工作与研究结果如下： 1 综述分子蒸馏技术的应用及其发展现状，从分子蒸馏技术的原理、模型研究及其应用的发展等进行了系统评述；并结合蒸发速率和分离效率这两个评价分子蒸馏效果的重要指标，对刮膜分子蒸馏器工艺参数与结构参数进行了分析与讨论。

The optimum conditions of the process for obtaining high- purity and recovery citral were determined by analyzing the relative content of citral with gas chromatography- mass spectrometry system.

用GC-MS联用仪对分离物中柠檬醛相对百分含量进行分析，实验表明，获得高纯度、高收率的柠檬醛的分子蒸馏的适宜工艺条件为：在蒸馏压力0.15Pa、蒸馏温度45℃、物料流量1滴/s、刮膜蒸馏转速370￣390r/min、冷却水温度4￣5℃。

The optimum conditions of the process for obtaining high-purity and recovery cinnamaldehyde were determined by the relative content of cinnamaldehyde with gas chromatography-mass spectrometry system.

用GC-MS对分离物中肉桂醛含量进行分析，确定了用分子蒸馏技术分离提取高纯度、高收率的肉桂醛的适宜工艺条件为：蒸馏压力 100Pa、蒸馏温度 60℃、物料流量 1滴/s、刮膜蒸馏转速 370~390r/min、冷却水温度 4~5℃。

The mechanism of molecular distillation was analyzed in this paper.Stationary,falling-film,the UIC and centrifugal molecular distillatory in common use,and also the application and the development tr...

本文分析了分子蒸馏技术的机理，介绍了目前常用的静止式、降膜式、刮膜式和离心式分子蒸馏器，以及分子蒸馏技术在化工、医药、轻工和食品行业的应用情况和发展趋势。

Stationary,falling-film,the UIC and centrifugal molecular distillatory in common use,and also the application and the development trend inchemical products,medicine,light industry and food industry of molecular distillation were introduced.

本文分析了分子蒸馏技术的机理，介绍了目前常用的静止式、降膜式、刮膜式和离心式分子蒸馏器，以及分子蒸馏技术在化工、医药、轻工和食品行业的应用情况和发展趋势。

Results showed that influence of splashing on desired substance caused by insufficient removal of gases and re-evaporation were minimized by the segmented condenser. The component with larger mass concentration gradient of desired substance and increasement of evaporation degree were obtained.

研究结果表明：通过分子蒸馏分段冷凝可以减少实际蒸馏过程中由于脱气不完全造成的&喷溅&现象、冷凝面分子返蒸发效应和得到质量分数梯度较大的目标组分，并可以增大蒸馏量。

Firstly,the basic principle,main equipment and technological features of molecular distillation technology are summarized in this manuscript.

综合评述了分子蒸馏技术的基本原理、技术特点及设备，并对其优缺点进行分析评价；介绍了分子蒸馏技术在工业生产中的应用及存在的问题和解决办法；提出了未来分子蒸馏领域的重点研究方向。

This paper reviews the definition, principle and character of molecular distillation and the factor influencing molecular distillation velocity, and especially introduces the development and application of this technology in food industry.

本文介绍了分子蒸馏的概念、原理、特点以及影响分子蒸馏速度的因素；其中着重论述了分子蒸馏技术目前在食品工业中的应用发展情况。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。