柠檬

A process for preparing citral from litsea cubeba oil using molecular distillation were investigated.

利用分子蒸馏技术对山苍子油分离提纯柠檬醛工艺技术条件进行研究。

Citral is an extremely important aliphatic acyclic terpene aldehyde and, because of its unusual structure, it possesses properties which are of interest both from an academic and a practical viewpoint.

由于其特殊的结构，因此柠檬醛的性质无论从学术或实用的角度来看，都很重要。

The essential oil from the peel of the lemon fruit is made up of many naturally occurring compounds such as limonene, citral and coumarin.

柠檬精油的芳香疗法用于许多方面，包括加强血管壁的，能令肌肤保持新鲜愉快的和充满活力的按摩油。

This paper uses orthogonal experiment to research on the synthesis technique of pseudo-ally lionone from citral and allylacetone. The product structure had analysed by IR.

利用正交试验法对柠檬醛和烯丙基丙酮合成假性烯丙基紫罗兰酮的工艺进行了研究，并用红外光谱对产品进行了结构分析和鉴定。

With the fractional device manufactured by us, more than 97% natural citral can be separated out from the litsea cubeba oil, which is hard to rectify, the product with pure odor is produced with high yield and low energy consumption.

公司设计制造的分馏设备可从分馏难度较大的山苍子油中单离出97%的天然柠檬醛，生产的产品香气纯正、得率高、能耗低。

Using citral and acetone as starting materials, the aldolcondensation was carried out, and then the final product wasobtained by distillation under vacuum.

以柠檬醛和丙酮为起始原料进行醇醛缩合反应，经减压蒸馏得到最终产物。

Objective: Carry on a research to the Zhejiang volatile oil, refine its major constituent citral, the obviation carcinogen safrole , then prepare soft capsule ,and enhance Miao medicine Zhejiang value in use.

目的：对者姜挥发油进行研究，精制其主要成分柠檬醛，除去致癌物质黄樟醚，并将所得的油制备成软胶囊，提高苗药者姜的利用价值。

Objective: Carry on a research to the Zhejiang volatile oil, refine its major constituent citral, the obviation carcinogen safrole, then prepare soft capsule ,and enhance Miao medicine Zhejiang value in use.

中文摘要：目的：对者姜挥发油进行研究，精制其主要成分柠檬醛，除去致癌物质黄樟醚，并将所得的油制备成软胶囊，提高苗药者姜的利用价值。

The citric acid plant is just one of 10 similar enterprises fueled by marsh gas.

柠檬酸厂只是类似的以沼气为燃料企业中的十分之一。

It is also lighter in color than most citrine that you find on the market.

它的颜色也更轻比大多数柠檬色，你在市场上找到。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。