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1)  acetylation degree
乙酰度
2)  degree of deacetylation
脱乙酰度
1.
On-site monitoring of the degree of deacetylation for the production of chitosan using near-infrared spectroscopy;
壳聚糖生产过程中脱乙酰度的近红外光谱法现场监测
2.
Preparation and characterization of chitosans of high degree of deacetylation with different molecular weights;
不同分子量高脱乙酰度壳聚糖的制备及表征
3.
Research of common indicator of degree of deacetylation of chitosan by alkalimetry
碱量法测定壳聚糖脱乙酰度通用指示剂的研究
3)  the degree of deacetylation
脱乙酰度
1.
The determination of the degree of deacetylation of chitosan by linear potentiometric titration was studied, and the determined values were compared with the values determined by acid-base titration.
采用线性电位滴定法测定壳聚糖的脱乙酰度,并与酸碱指示剂滴定法测定的结果进行比较,结果表明线性电位滴定法测定比较适合粘度高的样品,且分析速度快,操作简单,精密度高。
2.
The paper discussed a method of determination of chitosan and the degree of deacetylation.
讨论了国内外水产界对壳聚糖产品标注的质量指标脱乙酰度的存在问题。
4)  deacetylation [diə,siti'leiʃən]
脱乙酰度
1.
Research on the degree of deacetylation (D.D) of chitosan
壳聚糖脱乙酰度检测方法的研究
2.
Influence of reaction temperature, time, NaOH content and pre-marination on deacetylation in the preparation of chitosan from chitin is studied.
研究了甲壳质分步脱乙酰制壳聚糖反应的温度、时间、NaOH含量和预浸泡时间对脱乙酰度的影响。
3.
By comparing with the traditional method, it has saved money and protected environment The best process was got by SAS That is, when papain acted on the materials, the best proportion was water:papain=16:1,pH is 7 0, under the condition of 55℃,14?000?IU/g, for 5 hours Deacetylation was achieved by 46% NaOH at 110℃ for 2 hours By determinating deacetylation degree and viscosity, the most importa.
0 ,温度 5 5℃ ,反应时间 5h ;脱乙酰基条件为温度 110℃ ,碱浓度4 6% ,反应时间 2h ;通过测定几丁聚糖的主要质量指标脱乙酰度和粘度 ,证明了该工艺的可行
5)  Deacetylation degree
脱乙酰度
1.
Determination of deacetylation degree in chitosan by ~1H-NMR;
壳聚糖脱乙酰度的~1H-NMR测定方法研究
2.
Effect of different deacetylation degree and different sources of chitosan on the adsorptivity for Cu~(2+);
不同来源及脱乙酰度壳聚糖对铜离子吸附特性的研究
3.
Comparison of two chitosan deacetylation degree determination
壳聚糖脱乙酰度两种测定方法的比较
6)  degree of deacetylation of chitosan
脱乙酰度
1.
Studies on degree of deacetylation of chitosan and its residual amount left over in clarified products when used as a clarificant;
壳聚糖澄清剂的脱乙酰度及残留量研究
2.
According to D-approximate design experimental method,we have proposed the technological condition for preparation of protein_containing with the degree of deacetylation of chitosan as the main property index.
采用D -近似最优设计法 ,系统地研究了NaOH质量分数、碱处理时间及碱处理温度这三个主要因素对制备壳聚糖的影响 ,并以脱乙酰度为主要性能指标 ,提出不脱蛋白质的壳聚糖制备工艺条件。
3.
The concentration of NaOH influences the degree of deacetylation of chitosan to much high extent according to D approximate design experimental method.
结果表明 ,脱乙酰度随着碱液质量分数的增加而出现峰值 ,当碱液质量分数增加时 ,脱乙酰度增加但其速度却在减小 ,当碱液质量分数达到 4 0 %时 ,脱乙酰度达到 90 %左右 ,而后增加碱液质量分数时 ,脱乙酰度反而下降 ;随着反应温度的升高 ,其脱乙酰度几乎线性递增 ,当温度达到 2 0 0℃附近时 ,曲线趋于平直且脱乙酰度达到最大 ;随着反应时间的增加 ,脱乙酰度开始呈线性增加 ,当反应时间超过 5 0min后 ,脱乙酰度有下降趋势 ;在一定碱液质量分数 (40 % )条件下 ,脱乙酰度随着温度的增加而增加 ,但若需获得较高质量的壳聚糖必须提高反应温
补充资料:脱度
1.超度。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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