酚

The enzyme tannase, which is used in the present invention, is known to hydrolyse the galloyl ester linkages of polyphenolic substrate s such as tannic acid, tea polyphenol gallates, and the like.

我们知道，这种在本发明中所使用的丹宁酶，可水解多酚酸类物质的棓酸酯键，如丹宁酸，茶叶的棓酸多酚酯及其类似物。

Parameters for extraction of polyphenols from pu"er teaThe influence of temperature, heating time, ratio of tea to solvent, con centration and pH value of solvent on extraction rate of pu"er tea polyphenols were studied.

1普洱茶多酚浸提条件的优化以普洱茶为原料，研究浸提温度、浸提时间、料液比、溶剂浓度对普洱茶多酚提取率的影响。

Effects of fertilizers with different ratios of nitrogen,phosphorus and potassium on the infestation of cashew red-banded thrip Selenothrips rubrocinctus.

这是一种间位上接有C15不饱和侧链的单酚和双酚混合物，可用于制备涂料专用的醛树脂。

The toxical effects of nonylphenol ethoxylates and nonyiphenol were studied with EROD in liver of carp as biomarker under external condition. These two tested substances all had activation on EROD enzyme in liver of carp. Under definite range of concentrations, with the affecting rule of inhibiting at high concentration and inducing at low concentration.

在离体条件下，以鲤鱼肝脏EROD酶为生物标志物研究了壬基酚聚氧乙烯醚及壬基酚的毒性效应结果表明，在一定的浓度范围内，2种受试物对鲤鱼肝脏EROD酶均有激活作用受试物浓度对EROD酶的活性的影响规律为高浓度时抑制，低浓度时诱导。

By one-step epoxidation of double bond in the side chain of cardanol,epoxy-cardanol has been synthesized,which may interact with diethylene triamine to form amino-cardanol.

采用一步环氧化法对腰果酚侧链进行氧化，其环氧化物与多元胺反应生成氨基腰果酚。

In order to investigate the relationship between the open-chain ligands and metal ions, and the possibility of the metal complexes used as electroluminescent materials, a new naphthol schiff base ligand which is a open-chain crown and its four transition metal complexes, a new amide type tripodal ligand containing heterocyclic ring, two tripodal ligands (H〓L〓 and H〓L〓) containing phenol schiff bases and their rare earth complexes were synthesized and characterized.

为了进一步研究和探讨开链配体与金属离子的配位作用，以及金属配合物作为电致发光材料的可能性，我们设计合成了含萘酚环的Schiff碱开链冠醚H〓L〓及四种过渡金属(Zn、Ni、Co、Cu)配合物，两个含酚羟基的Schiff碱三足配体H〓L〓和H〓L〓及稀土配合物，一个含杂环的酰胺型三足配体L〓，培养了配体L〓的单晶，确定了其晶体结构。

RESULTS ＆ CONCLUSIONS: 8 compounds were isolated and 6 compounds elucidated as Bergarpten, Umbelliferone, Skimmianine, Kaempferol, 3,5 - Diacetyltambulin and Zanthonitrile.

结果与结论：从竹叶椒果实的脂溶性部位分离得到了8个化合物，鉴定了其中的6个化合物，分别是化合物1香柑内酯、化合物2伞形花内酯、化合物3菌芋碱、化合物4山奈酚、化合物5（3，5-Diacetyltambulin）、化合物6；其中山奈酚系首次从花椒属植物中分离得到。

But both 20 years and 2 years old of pu-erh tea extracts show a strong inhibitory effects against 2-AAF. In addition, tannic acid, gallic acid, rutin, umbelliferone, and quercetin exhibited stronger antimutagenicities against PhIP than apigenin; while all of these polyphenols displayed inhibitory effect against 2-AAF.

而比较数种多酚类化合物发现，tannic acid、gallic acid、rutin、umbelliferone和quercetin对於抑制PhIP的抗突变作用比apigenin来的有效，但是apigenin和其他多酚类化合物对於抑制2-AAF的抗突变作用则均具有明显的抑制效果。

Except vanillic acid,there were no direct relationshipsbetween phenolic acids in roots and root exudates of soybean.

除了香草酸外，大豆根中的酚酸与分泌物中的酚酸无直接关系。

Four phenolic components of p-hydrobenzoic, vanillic, gallic acid and ferulic acids could be detected in soil with different continuous cropping years.

其中棉花秸秆中的酚类化感物质含量高于根系分泌物中的，棉花秸秆地上部酚类化感物质含量高于地下部。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。