查询词典 tocopherol

Six experimental stages were designed in our procedure, those are:(1) metabolite recovery and tested sample preparation: the metabolites were recovered by Amberlite XAD-2 absorption, followed by MeOH elution and solvent concentration;(2) antioxidant detection and strain selection: samples were quantitatively analyzed by the inhibition effects on formation of lipid peroxides and TBARS to screen the strains able to produce antioxidants. According to the established screening methods, we chose out a strain of actinomycetes, designed as AMBL-029C;(3) antioxidant purification: the fermentation broth was recovered by a series of separation techniques including centrifugation, Amberlite XAD-2 absorption, followed by MeOH elution and a successive TLC purification. The resulting primary purified compound [temperately designed as AMBL-029C-TS] was further analyzed by HPLC to monitor its purity;(4) physical-chemical characteristics: judging from the acid-base fractionation experiments, and the pH and temperature stability tests, the compound was deduced to be a acidic compound with the properties of low polarity and highly pH and temperature stable;(5) mechanism of the antioxidant: in comparison with some other known antioxidants, TS was subjected to investigate its antioxidant mechanism, together with BHT,-tocopherol, as well as two streptomyces metabolites, homogentisic acid and -phenylpyruvic acid, which were previously isolated as the natural antioxidants in our laboratory.

针对本实验目的，我们设计了以下的实验步骤﹔（1）二次代谢物回收及检测样本处理：我们将发酵所得的培养上清液，利用疏水吸附性树酯Amberlite XAD-2吸附回收，并以甲醇溶离及真空减压浓缩脱水等方式处理，以取得提供抗氧化活性筛选之检测样本；（2）抗氧化活性检测及菌种筛选：以「过氧化脂质」和「硫丙二醯尿」的生成量进行定性定量分析以作为抗氧化物质生产菌筛选之用；经此筛选程序，我们选获了具有抗氧化物质高生产力的菌株，命名为AMBL-029C；（3）抗氧化物质的分离纯化：针对生产菌株的发酵回收处理液，以矽胶薄层色层分离法经物质层析纯化后，并以高效能液相层析法(High performance liquid chromatography；HPLC)分析物质可得一初级纯化物质，命名为AMBL-029C-TS；（4）抗氧化物质的物理化学性质分析：由酸碱转溶（acid-base fractionation）实验得知，此抗氧化物质属於中低极性的强酸性物质，对温度（37℃-100℃）及酸碱度（pH3.0-13.0）均表现出高稳定性；（5）在抗氧化机制探讨方面，我们针对数种不同的抗氧化机制进行探讨，即： 1。

Nevertheless,both probucol and alpha-tocopherol significantly decreased in vitro LDL oxidizability, measured under typically strong oxidative conditions.

然而，在典型的强氧化条件下测定，普罗布考和α-生育酚都能显著降低LDL体外氧化性。

The antioxidative action may involve trapping the initiating radicals generated by AAPH in the bulk phase, inhibiting the propagating lipid peroxyl radicals on the surface of micelles and regeneratingα-tocopherol by reducing theα-tocopheroxyl radical.

在均相溶液中，这些化合物单独使用时都是很好的抗氧化剂，但是只有杨梅树素产生了抑制期，其他化合物均降低了引发速率。

The antioxidative action may involve trapping the initiating radicals generated by AAPH in the bulk water phase, trapping the initiating radicals generated by DBHN in the surface of the micelles, inhibiting the propagating lipid peroxyl radicals on the surface of micelles and regenerating α-tocopherol by reducing the α-tocopheroxyl radical.

茶多酚的抗氧化机理可能涉及到在水相中捕获链引发自由基R00·和在胶束表面捕获链引发自由基t-BuO以及在胶束表面捕获链增长自由基LOO和在胶束表面与α-生育酚自由基反应从而再生α-生育酚。

Series products. The rice bran nutriment is rich in high quality fat, protein and tocopherol, and is a popular food which organically inosculates the relax and health.

米糠营养素富含优质的脂肪，蛋白质，生育酚，生育三烯酚，是一种休闲和健康有机融合的大众食品。

Argan oil has almost twice as much vitamin E or a-tocopherol as olive oil and it is much richer in linoleic acids.

阿甘油所含的维生素 E是橄榄油的两倍，而且，其亚油酸的含量也比橄榄油要丰富得多。

Main constituent:immunopotentiator, axerophthol, cholecalciferol, tocopherol, thiamine, vitamin b2, pyridoxine, cobalamin, niacin, pantothenic acid, folic acid, biotin, protein and so on.

主要成分：免疫增强剂、维生素A、维生素D3、维生素E、维生素B1、维生素B2、维生素B6、维生素B12、烟酸、泛酸、叶酸、生物素、蛋白质等。

Contains: Deionised Water, Mineral Oil, Glycerine, Stearic Acid, Cetearyl Alcohol, Triethanolamine, Carbomer, Lanolin, Tocopherol Acetate, Fragrance, Propylene Glycol, Methyl Paraben, Ethyl Paraben, Butyl Paraben, Isobutyl Paraben, Propyl Paraben, Disodium EDTA.

成分：离子水，矿物油，甘油，硬脂酸油脂剂，棕榈醇乳化剂，三乙醇胺酸碱值调节剂，稳定乳化剂，绵羊油，维生素E，香料，丙烯甘醇保湿剂，甲基木精胶，乙酯，丁酯，尼泊金异丁酯，丙酯，稳定剂缓冲剂。

Lamberts supplies vitamin E in its natural form of d-alpha tocopherol, as this is the form in which it occurs in foods and as research has confirmed that it has a higher biological activity, and is absorbed and retained more readily by the body than synthetic vitamin E.

廉价的合成形式被称为消旋α-维生素E是最常见的形式中发现许多'街头'单一维生素E的产品。

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。