查询词典 fatty acid

Because the properties of the products(such as fatty acids,fatty acid methyl esters,monoglyceride and diglyceride ,et al)are similar,usually many pieces of thin layer chromatographyplates are needed to obtain pure triglyceride for the 2-position fatty acid analysis.

由于反应生成物(如脂肪酸、脂肪酸甲酯、甘三酯、甘一酯、甘二酯等)的性质十分相似，要研究酯交换过程中甘三酯的Sn - 2位脂肪酸组成，所需要甘三酯的量往往需要很多块TLC板的分离才能实现，致使实验费用增加，效率降低。

The analysis methods for the determination of micro or trace elements in high moisture jellyfish were developed. The fatty acid compositions in difderent parts of fresh jellyfish were determined by GC/MS method. Thirty-five fatty acids were identified, and most of them were found in R. esculentum jellyfish for the first time. Especially, two unusual very long chain polyunsaturated fatty acids that were never detected in the other jellyfish also were determined. Amino acids were abundant in R. esculentum jellyfish, especially containing sulfur amino acids, and could be supplied for human diet. The polysaccharide in umbrella part of jellyfish was composed of glucose, galactose and uronic acid, and its molecular weight was 40,000, but the polysaccharide of the oral arms part consisted of glucose, mannose and glycuronic acid, and its molecular weight was 43,000. Above-mentioned data were never reported. The ethanolic extract of oral arms part of jellyfish were extracted by different polar solvents (petroleum ether, acetic ether, n-butanol), and antibacterial activity was tested to these extracts by four species of terricolous pathogenic bacilli and three species of botanic pathogenic fungi. The result demonstrated that the petroleum ether extract had certain bactericidal activity for two species of pathogenic bacilli, and n-butanol extract had certain inhibited activity on apple rot pathogenic fungus.

建立了 高含水量的海蜇产品中微量、痕量元素成分测定的分析方法；采用 GC/MS 方法测定了新鲜海蜇不同部位的脂肪酸组成，共鉴定出 35 种脂肪酸，其中大多数脂肪酸是首次在海蜇中被检测到，尤其是两种不常见的 C24：5 超长链多不饱和脂肪酸的分析和鉴定在其它水母种属中也从未见报道；海蜇三个部位中氨基酸成分齐全，含量丰富，含硫氨基酸含量较高，可与其它食物蛋白质的氨基酸互补；其中海蜇皮多糖是由葡萄糖、半乳糖和糖醛酸组成，分子量为 40，000，海蜇头多糖是由葡萄糖、甘露糖和糖醛酸组成，分子量为 43，000，以上工作均未见报道；利用石油醚、乙酸乙酯、正丁醇三种不同极性溶剂分别萃取海蜇头乙醇浸提物，用纸碟法和生长速率法分别对四株陆源病原菌和三株植物病原真菌进行了抑菌实验，结果表明海蜇头石油醚提取物和正丁醇提取物具有一定的抑菌活性。

The analysis methods for the determination of microor trace elements in high moisture jellyfish were developed. The fatty acid compositions indifderent parts of fresh jellyfish were determined by GC/MS method. Thirty-five fatty acids wereidentified, and most of them were found in R. esculentum jellyfish for the first time. Especially,two unusual very long chain polyunsaturated fatty acids that were never detected in the otherjellyfish also were determined. Amino acids were abundant in R. esculentum jellyfish, especiallycontaining sulfur amino acids, and could be supplied for human diet. The polysaccharide inumbrella part of jellyfish was composed of glucose, galactose and uronic acid, and its molecularweight was 40,000, but the polysaccharide of the oral arms part consisted of glucose, mannose andglycuronic acid, and its molecular weight was 43,000. Above-mentioned data were never reported.The ethanolic extract of oral arms part of jellyfish were extracted by different polar solvents(petroleum ether, acetic ether, n-butanol), and antibacterial activity was tested to these extracts byfour species of terricolous pathogenic bacilli and three species of botanic pathogenic fungi. Theresult demonstrated that the petroleum ether extract had certain bactericidal activity for twospecies of pathogenic bacilli, and n-butanol extract had certain inhibited activity on apple rotpathogenic fungus.

建立了高含水量的海蜇产品中微量、痕量元素成分测定的分析方法；采用 GC/MS 方法测定了新鲜海蜇不同部位的脂肪酸组成，共鉴定出 35 种脂肪酸，其中大多数脂肪酸是首次在海蜇中被检测到，尤其是两种不常见的 C24：5 超长链多不饱和脂肪酸的分析和鉴定在其它水母种属中也从未见报道；海蜇三个部位中氨基酸成分齐全，含量丰富，含硫氨基酸含量较高，可与其它食物蛋白质的氨基酸互补；其中海蜇皮多糖是由葡萄糖、半乳糖和糖醛酸组成，分子量为 40，000，海蜇头多糖是由葡萄糖、甘露糖和糖醛酸组成，分子量为 43，000，以上工作均未见报道；利用石油醚、乙酸乙酯、正丁醇三种不同极性溶剂分别萃取海蜇头乙醇浸提物，用纸碟法和生长速率法分别对四株陆源病原菌和三株植物病原真菌进行了抑菌实验，结果表明海蜇头石油醚提取物和正丁醇提取物具有一定的抑菌活性。

Surprised, the researchers then examined the trypanosome genome more carefully and discovered enzymes that in other organisms are known to increase the size of a fatty acid molecule - dubbed elongases, for making fatty acids longer - but never have been shown to actually make a new fatty acid molecule.

奇怪的是，这是研究人员更仔细地检查了锥虫的基因组，发现在其他物种中作为抑止能增加脂肪酸长度的分子（同步复制延伸酶，目的是合成更长的脂肪酸，但是从来没有发现它真正能合成脂肪酸分子）。

After 20 days, the contents of linoleic acid and linolenic acid begin to increase. However, the percentage of stearic acid decreases and the content of oleic acid has no change. So it can be concluded that in immobilized state the fatty acid compositions of plasma membrane have a tendency to shift towards unsaturation and the index of unsaturated fatty acid increases.

同时膜脂肪酸代谢也发生了显著的变化，从第20天后，膜亚油酸和亚麻酸的含量开始增多，而硬脂酸的含量开始下降，油酸的含量没有变化，膜脂肪酸组分趋向不饱和化，脂肪酸的不饱和指数增高。

The physicochemical properties, fatty acid composition and mineral elements of Viburnum cylindricum seed oil were determined. The results showed that 20 kinds of fatty acids in the Viburnum cylindricum seed oil were identified, in which the main components were oleic acid (33.34%), 8,11-octadecadienoic acid (28.24%) and palmitic acid (22.55%); the seed oil contained 6 kinds of essential mineral elements including Ca, P, Mg, Fe, K and Mn, and their contents were in the reasonable range of body requirement.

测定了水红木油的理化指标；用GC/MS法测定了脂肪酸组成及含量，共检出20种脂肪酸，主要成分9-十八碳烯酸占33.34%，8，11-十八碳二烯酸占28.24%，十六烷酸占22.55%，3种脂肪酸共占84.13%；用ICP-OES法测定了矿质元素的种类和含量，检出的Ca、P、Mg、Fe、K、Mn 6种矿质元素均为人体必需元素，含量均在人体所需合理范围内。

A range of waterborne alkyd resins has been prepared by fatty acid process, based on soybean fatty acid, trimellitic anhydride, and various polyols and polybasic carboxylic acids, which are modified with benzoic acid, maleic anhydride and oleic acid.

通过脂肪酸法，选用豆油脂肪酸、偏苯三甲酸酐和不同的多元醇、多元酸制备了一系列水性醇酸树脂，用苯甲酸、顺丁烯二酸酐和油酸对其改性进行了研究。

At last, fatty acid of leg muscle extracted and basified in the methanol. Analysed dribs and drabs of fatty acid by GC/MS, which proved L-carnitine help the transportation of long-chain fatty acid.

最后，提取小鼠腿部肌肉中的脂肪，甲酯化，用气相色谱-质谱法分析各个脂肪酸片断，验证L-肉碱帮助运输长链脂肪酸进入线粒体氧化的作用。

The high fat-fed group were fed with high fat diet containing 59% saturated free fatty acids. The n-3 fatty acids group was fed with 20% replacement of saturated fatty acid by C18:2 in bean oil instead of high-fat diet. The free fatty acid elements in bean oil were detected by gaschro-matography/mass-spectrometry.

对照组喂饲普通饲料，高脂组喂饲提供59%热卡的饱和脂肪酸高脂饲料，n-6脂肪酸组喂饲高脂饲料，其中提供20%热量的饱和脂肪酸由豆油中的C18：2代替。

Unsaturated fatty acidcontents of fat were 64.80%,fatty chemical Characteristic : iodin value 70.86 ,acid value 0.4933 ,saponification number 195.34 ,The conclusion indicated that the raised Landaise geese had better animal meat material,concluding: abundant flavor substance and essential amino acid,lower fat content and higher Unsaturated fatty acid.

脂肪中不饱和脂肪酸含量高达64.80%，脂肪酸碘价70.86 ，酸价0.4933，皂化价195.34。由此可知：朗德鹅具有较好的肉用性能，尤其是朗德鹅肌肉富含风味物质、必需氨基酸和大量的不饱和脂肪酸，是人类较好的动物肉食原料。中图分类号： TS201.2 ； TS251.1 文献标识码： A

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。