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Keywords sericin;extraction;chilled alcohol precipitation;circular dichroism;Infrared spectra; 丝胶;提取;低温乙醇沉淀;圆二色光谱;红外光谱;
chilled alcohol precipitation 低温乙醇沉淀
Methods:Flocculating method and alcohol precipitation meth od were used. 结果:壳聚糖絮凝法优于明胶絮凝法。
Aim To determine the alcohol precipitation techniques for polysaccharides from Armillariella tabescens. 目的确定亮菌多糖的醇沉工艺。
Alcohol precipitation is an efficient method for separation and purification of xanthan gum. 醇析法是一种有效分离提纯黄原胶的方法。
Methods:Oral liquid was made by steam distillation,alcohol abstraction method,water abstraction and alcohol precipitation. 方法:分别采用水蒸气蒸馏法、醇提法、水提醇沉法制成口服液;
Crude polysaccharides were prepared from powered Spirulina platensis by hot water extraction, alcohol precipitation, deproteinization. 螺旋藻干粉经热水抽提、醇析、脱蛋白得粗多糖,经凝胶柱层析纯化得到白色粉末状多糖纯品。
Objective: To study the influence of coefficient of unguent and feasibility of method of chitosans clarification replaing water extraction and alcohol precipitation method. 目的:探讨壳聚糖澄清法替代乙醇沉淀法工艺的可行性及对浸膏得率的影响。
Objective:To compare the fit and unfit of alcohol precipitation process and chitosan flocculation process used in purification of extract of yanyan buccal tablets. 目的:比较醇沉法和壳聚糖絮凝法用于咽炎口含片浸膏纯化的优劣。
RESULTS? The loss rate of salidroside was 23 83%,3 89%,15 66% and 8 98% respectively by using alcohol precipitation, chitosan adsorbing purification , 101 fruit juice adsorbing purification and ZTC? 1+1 absorbing purification. [结果 ]醇沉法与不同提取法红景天总皂苷的损失率 :醇沉法为 2 3 83%25;壳聚糖吸附法为 3 89%25;10 1果汁吸附法为 15 6 6%25;ZTC 1+1吸附法为 8 98%25.
In this paper, based on the general physical and chemical character of MTG, several satisfied methods was decided after studied on using high centrifugation, ammonium sulfate precipitation, alcohol precipitation, acetone precipitation to separation MTG. 本文根据微生物谷胺酰胺转胺酶的基本理化性质，先后采用了高速离心、硫酸铵盐析沉淀、乙醇沉淀、丙酮沉淀等方法，对微生物谷胺酰胺转胺酶的初步提纯工艺进行了研究讨论，确定了该酶不同用途的初提方法，并为该酶的进一步纯化做好准备。
The DTP was obtained by alkali extraction and alcohol precipitation from Dendrobium thyrsiflorum Rchb. f and was administered on normal mice with 400 mg/kg,600 mg/kg and 800 mg/kg respectively through stomach for 10 d . 球花石斛采用碱提醇沉法得到球花石斛多糖,分别以400、600、800mg/kg小鼠灌胃给药连续10d。
Humic acid extracted from peat was classified into seven fractions by alcohol precipitation technique for the analysis of thermolysis,flocculation limit and some optical properties. 结果表明，酒精沉淀分级法是按分子量大小、缩合程度的高低将胡敏酸分成较均一的级分，而对胡敏酸的性质、结构等无破坏作用。
The judge enjoined him from selling alcohol. 法官禁止他卖酒。
The night air chilled his bones. 夜间的寒气使他感到冰冷彻骨。
Come by the fire you must be chilled to the marrow! 到火旁边来吧－－你一定冻坏了。
A chill struck into the narrow of his bones. 他感到一股寒意，透入骨髓。
the ethyl alcohol precipitation method 乙醇沉淀法
This wine is best served chilled. 这种葡萄酒最好冷饮。
White wine should be slightly chilled. 白葡萄酒应稍微冰一下。