1) urea entraing
尿素包埋
2) urea adduction fractionation
尿素包合
1.
Decreasing the erucic acid content in Descurainia Sophia seed oil by freezing crystallization and urea adduction fractionation;
冷冻结晶法和尿素包合法降低播娘蒿籽油中芥酸的研究
2.
Purification of oleic acid from oil-tea camellia seed oil by urea adduction fractionation;
尿素包合法提纯油茶籽油中油酸的工艺研究
3.
Enrichment of linoleic acid from sunflower oil with improved urea adduction fractionation;
改进的尿素包合法富集葵花籽油中亚油酸的研究
3) urea inclusion
尿素包合
1.
Ingredient analysis for mixed fatty acid from lithospermun erythrorhizonoil after urea inclusion;
紫草油脂肪酸尿素包合后的组成分析
2.
In the process of purification of arachidonic acid(AA) from fungi lipids by urea inclusion,orthogonal design were used.
为提高尿素包合法富集花生四烯酸的效率,通过正交设计对甲醇用量、结晶温度、尿/酯比、降温速度等因素进行分析,发现降温速度对分离效果有显著影响、结晶过程是制约分离效果的瓶颈。
3.
Purification of arachidonic acid from fungi lipids by urea inclusion was studied,and effect of crystallization temperature,cool speed,ratio of urea to fatty and volume of methanol on the yield and purity of arachidonic acid was investigated.
为提高尿素包合法富集花生四烯酸(AA)效率,研究了降温速度、甲醇用量、尿酯比及结晶温度对花生四烯酸(AA)晶体大小、收率及纯度的影响。
4) urea-inclusion
尿素包合
1.
The fatty acid methyl esters was prepared from Acer Truncatum buge oil,and the main influence factors of separating nervonic acid methyl ester by urea-inclusion method were analysed.
将元宝枫油制成混合脂肪酸甲酯,再应用尿素包合法对其中的神经酸甲酯分离的主要影响因素进行了正交试验研究。
2.
Based on the method of low temperature crystallization and urea-inclusion,linoleic acid and α-linolenic acid were successfully isolated from the seed oil of Descurainia sophia.
利用冷冻结晶法和尿素包合法分离播娘蒿种子油中的亚油酸和α-亚麻酸,降低其中的芥酸。
5) coated urea
包膜尿素
1.
Development of calcium hydrogen phosphate coated urea and its release characteristics;
磷酸氢钙包膜尿素的研制及其释放特性
2.
Preparation and slow release effect of coated urea using tung oil as film-forming materials;
桐油包膜尿素的制备及其肥料缓释效应研究
3.
N-releasing characteristics of polymer-coated urea and its evaluation method;
高聚物包膜尿素的氮素释放特性及其评价方法
6) urea including
尿素包合
1.
Refining of 70 % Conjugated linoleic acid (CLA) was purificated with the method of urea including.
采用尿素包合法对纯度在70%的共轭亚油酸(CLA)进行了提纯研究。
补充资料:包埋培养
分子式:
CAS号:
性质:细胞固定化培养的一种。首先用于微生物发酵,具有保护性强、可重复使用、易于连续操作、生长速度快、产品较纯等优点。对于动物细胞,无论是悬浮和贴壁生长的细胞都适用。细胞生长密度高,抗剪切力和抗污染能力强。对悬浮培养的细胞常用海藻酸钙包埋,对贴壁生长的细胞常用胶原包埋。包埋培养的操作步骤简单,条件温和,细胞和多聚物或单体混合,随着凝胶的形成,细胞嵌入多聚物的网格中。有许多多聚物可采用,如聚丙烯酰胺、聚氨酯、海藻酸盐、卡拉胶、琼脂糖等,故通常可选择合适的系统,使细胞处于活性状态。它也存在一些缺点,如扩散限制,并非所有细胞都能接触最佳基质浓度。由于大分子基质不能渗透通过多聚物网格,因而有一些物质被排斥在外。
CAS号:
性质:细胞固定化培养的一种。首先用于微生物发酵,具有保护性强、可重复使用、易于连续操作、生长速度快、产品较纯等优点。对于动物细胞,无论是悬浮和贴壁生长的细胞都适用。细胞生长密度高,抗剪切力和抗污染能力强。对悬浮培养的细胞常用海藻酸钙包埋,对贴壁生长的细胞常用胶原包埋。包埋培养的操作步骤简单,条件温和,细胞和多聚物或单体混合,随着凝胶的形成,细胞嵌入多聚物的网格中。有许多多聚物可采用,如聚丙烯酰胺、聚氨酯、海藻酸盐、卡拉胶、琼脂糖等,故通常可选择合适的系统,使细胞处于活性状态。它也存在一些缺点,如扩散限制,并非所有细胞都能接触最佳基质浓度。由于大分子基质不能渗透通过多聚物网格,因而有一些物质被排斥在外。
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参考词条