查询词典 tannin

The extracting processing of total tannin from the euryale seed coat was discussed for the comprehensive utilization of euryale seed coat by orthogonal,and content of total tannin from the euryale seed coat was determinated.

为综合利用芡实种皮，采用正交实验法探讨了芡实种皮中鞣质的提取工艺，并用分光光度法测定了芡实种皮总鞣质的含量。

The results show that tannin from grape seeds can increase the antioxidation ability of lard and gingili, and the antioxidating effect of tannin is better than citric acid and Vc.

结果表明葡萄籽单宁能提高猪油和芝麻油的抗氧化能力效果强于柠檬酸和Vc。

In an earlier stage, phenol-formaldehyde-tannin adhesives were synthesized using tannin extracts from Pinus pinaster bark.

在早期阶段，苯酚甲醛单宁粘合剂使用合成鞣质提取马尾松松树树皮。

Abstract］ Objective:To establish a simple and accurate method for determination of contents of tannin in tannin ointment.

目的：制定出一种简便准确的测量鞣酸软膏中鞣酸含量的方法，更好的控制该制剂的质量。

Condensed tannin-larch valonia, a kind of nature organic polymolecule and formaldehyde solution and dimethylamine water solution were used as raw materials to complete the Mannich reaction for tannin modification and the production was obtained.

本文以天然有机高分子化合物——落叶松栲胶为原料，用甲醛、二甲胺通过曼尼希反应对其中的缩合类单宁进行阳离子化改性，制得阳离子单宁。

Effects of tannin extracted from Casuarina equisetifolia branchlets on the growth and tannin contents of its seedlings were studied. The tannins extracted from C.

以短枝木麻黄小枝中提取的单宁处理其幼苗，探讨其化感作用及其对幼苗单宁含量的影响。

In this paper, we analyzed the larch extract tannin, aminom ethylation of larch extract tannin, quaternization of cationic larch extract tannin and amphoteric larch extract tannin (sulfonation of the larch extract tannin quaternary ammonium) by infrared spectral analysis, confirmed the quarternization and sulfonate groups, and measured its water treatment properties such as flocculation, scale inhibition, results showed that quaternization of larch extract tannin and amphoteric larch extract tannin have better water treatment ability, can realize the multifunction.

本论文采用红外光谱法对落叶松单宁、胺甲基化落叶松单宁、阳离子落叶松单宁季胺盐、两性落叶松单宁进行了化学结构分析，并对其水处理剂性能如絮凝、阻垢进行了检测。实验结果表明：落叶松单宁季胺盐和两性落叶松单宁均具有较佳的水处理能力，是性能良好的一剂多效工业水处理剂。

This article states that Pinus Tabulaeformis and tannin resin are used to produce tannin resin waferboard under laboratory conditions.

介绍以油松为主要原料，单宁树脂为胶粘剂，在实验室条件下，进行单宁树脂油松大片刨花板的研制。

It was investigated how to increase the yield and purity of tannin, flavone and oligoprocyanidms from the root and stalk of sanguisorba, and the stability of polyphenols from sanguisorba was studied, too. The chemical constitutes of sanguisorba were analyzed, the conditions on extracting tannin, flavone and oligoprocyanidins from sanguisorba by general lixiviating process and ultrasonic wave were optimize. The flavone and oligoprocyanidins were separated from sanguisorba and purified. The stability of polyphenol from sanguisorba was studied and the chemical structure of the products was analyzed.

本论文以地榆根茎为原料，对如何提高其主要活性成分鞣质、黄酮类物质以及低聚原花青素得率和纯度以及地榆多酚的稳定性进行了探讨；主要分析了地榆中化学成分，常规浸提和超声波浸提对地榆根茎中鞣质、黄酮类以及低聚原花青素提取条件的优化，地榆根中黄酮类和低聚原花青素的分离纯化，地榆多酚稳定性能以及产品的初步化学结构分析。

Maximum gallic acid yield ( 83.8%) was obtained after Escherichia coli was cultivated aerobicly in 100mL liquid culture medium with 7g/L tara tannin extract and 1g/L complementary urea on snaker (120 rpm) at initial pH 6.0 and 28℃for 28h, while maximum tannin reduction rate (43.6%) was obtained after 5g/L glucose was supplied instead of urea in the same degrading conditions above.

当塔拉单宁浸提物浓度为7 g/L、补充的尿素浓度为1 g/L、初始pH为6.0、250 mL锥形瓶装液量为100 mL、28℃振荡(120 rpm)培养28 h时，棓酸产率可达83.8%；当补充的葡萄糖浓度为5 g/L时，塔拉单宁降解率可达43.6%。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。