没食子酸

objective: the purpose of this study was to investigate the role of turkish gall extract on the metabolism of glycose metabolism and acid metabolism of cariogenic bacteria and to find out the mechanism of anticariogenic of turkish gall.

目的：研究没食子鞣质及其提取物对致龋菌产酸及产水不溶性胞外多糖能力的影响，探讨实验药物的防龋机制。

Methods: turkish gall 1,turkish gall 2 were selected to experiment medicine and there medicines to streptococcus mutans atcc25175, actinomyces naeslundiiwvu627, actinomyces viscosus atcc19246 and lactobacillus rhamnosus ac413 were checked, to observed the change of glycose metabolism and acid metabolism.

选择4种与龋病密切相关的口腔细菌作为实验菌株，以没食子鞣质及其提取物2为实验药物，研究对口腔细菌产酸的影响；同时选择主要产糖菌变形链球菌和粘性放线菌为实验菌株，研究实验药物对其合成水不溶性胞外多糖能力的影响。

The study results indicated that this new method could be used for quantitative determination of pyrogallic acid in production for its simpleness, cheapness veracity and stability.

研究结果表明，新方法具有操作简便、成本低廉、则定值稳定等特点，适用于焦性没食子酸工业生产的产品含量分析。

A new thermographic material was studied,in which hydrophilic polyvinyl alcohol was used as a binder, nickel stearate was used as a main material and pyrogallic acid was used as a developer.

本文对以水溶性聚乙烯醇为粘合剂，硬脂酸镍(NiSt2)为主要原料，焦性没食子酸为显影剂的一种新型热成像材料的研究。

The oscillating behaviors in darkness of pyrogallic acid-KBrO-HSO-system have been studied, the relations between induction period τ as well as oscillating period and the initial concentrations of reactants of the system have been determined experimentally at 25℃、35℃.

研究了无光照条件下焦性没食子酸-KBrO-HSO体系振荡的基本规律，得到了25℃、35℃时起振时间τ、振荡周期T与各反应物起始浓度之间关系的经验方程。

The determination of quercitin was performed on Century SIL C18 BDS (250 mm×4.6 mm, 5μm) column, using methanol-water-phosphoric acid (V:V:V=60.00:40.00:0.02) as mobile phase at a flow rate of 0.8mLmin^(-1) and UV detection at 360 nm. The determination of gallic acid was performed on Century SIL C18 BDS (250 mm×4.6 mm, 5μm) column, using acetonitrile-water-phosphoric acid (V:V:V=5.00:95.00:0.02) as mobile phase at a flow rate of 0.8mLmin^(-1) and UV detection at 272 nm.

槲皮素的测定条件为：Century SIL C18， BDS(250.0mm×4.6mm， 5μm)色谱柱，流动相为甲醇－水－磷酸（体积比为60.00：40.00：0.02），流速为0.8mLmin^(-1)，检测波长为360nm；没食子酸的测定条件为：Century SIL C18 BDS (250.0mm×4.6mm， 5μm)色谱柱，流动相为乙腈－水－磷酸（体积比为5.00：95.00：0.02），流速为0.80mLmin^(-1)，检测波长为272nm。

3 Aallic acid were esterificated with different alcohol by tannase immobilized in microemulsion-based gels.

3.4 在反应系统中加入盐/盐水合物对可以明显提高没食子酸的转化率。

Part of the explanation for this is that seed tannins have added chemical structures known as galloyl esters.

这一点的部分解释是葡萄籽单宁多出一个叫做没食子酸酯的化学结构。

The antioxidant activity of propolis in lard and rapeseed oil were evaluated by determining their POV values and compared with those of PG.

本文以猪油、菜油为实验材料，测定其POV值来评价蜂胶在动物油和植物油中的抗氧化特性，并与没食子酸丙酯比较。

With peroxide value as experimental index, the oxidative stability of cold pressed oil of Xanthoceras sorbifolia Bunge seed was studied by Schaal experiment using TBHQ, PG and V as antioxidants, V and critic acid as synergists.

采用Schaal烘箱加速法，以叔丁基对苯二酚、没食子酸丙酯、生育酚V(下标 E为抗氧化剂，抗坏血酸V(下标 C和柠檬酸为增效剂，过氧化值为试验指标，研究了光线、温度等对冷榨文冠果籽油抗氧化性能的影响。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。