醛糖

Low molecular weight mannuronic acid, guluronic acid and κ-carrageenan were prepared from algin and carrageenan by the acid hydrolysis method, and their weight average molecular weights and the distribution widths of molecular weight were determined by high performance gel permeation chromatography respectively.

本文以褐藻胶和κ-卡拉胶为原料通过酸水解分别获得了低聚的甘露糖醛酸，古罗糖醛酸和低聚κ-卡拉胶，并采用HPGPC法测定了这3种低聚糖的重均分子量。

Low molecular weight mannuronic acid, guluronic acid and κ carrageenan were prepared from algin and carrageenan by the acid hydrolysis method, and their weight average molecular weights and the distribution widths of molecular weight were determined by high performance gel permeation chromatography respectively.

本文以褐藻胶和κ-卡拉胶为原料通过酸水解分别获得了低聚的甘露糖醛酸、古罗糖醛酸和低聚κ-卡拉胶，并采用 HPGPC法测定了这 3种低聚糖的重均分子量。在此基础上再经硫酸酯化和成盐修饰制备了各自的硫酸酯碱式铝盐。

Algin ; carrageenan ; mannuronic acid ; guluronic acid ; polysaccharide ; sulfate ; aluminium ; peptic ulcer

褐藻胶；卡拉胶；甘露糖醛酸；古罗糖醛酸；多糖；硫酸酯；铝；消化性溃疡

Dimethicone ,Cyclopentasiloxane,Dimethicone/Vinyl Dimethicone Crosspolymer,Polysilicone-11,Glycoproteins,Panax Ginseng Root Extract,Equisetum Arvense Extract,Silica Dimethyl Silylate ,Bisabolol,Tocopheryl Acetate ,Sodium Hyaluronate,Ursolic Acid,Atelocollagen,Sodium Chondroitin Sulfate,Ethylhexyl Methoxycinnamate,Polyglyceryl-2 Tetraisostearate ,Glycerin ,Water,Alcohol,Butylene Glycol ,Lecithin,Xanthan Gum ,Mica,Fragrance ,Benzyl Alcohol,Linalool ,Hydroxycitronellal,Alpha-Isomethyl Ionone ,Amyl Cinnamal,Hexyl Cinnamal,Palm Tree Extract,Geraniol,Benzyl Benzoate,Butylphenyl Methylpropional,Phenoxyethanol,Methylparaben,Isopropylparaben,Butylparaben ,Isobutyl Paraben,Titanium Dioxide,Carmine

地美司康，环戊硅氧烷，聚二甲基硅氧烷/乙烯基聚二甲硅氧烷交联聚合物，聚硅氧烷-11，糖蛋白，人参根萃取，问荆萃取，二甲基甲硅烷基化硅石，没药醇，醋酸盐维他命E，透明质酸钠，熊果酸，去端肽胶原，硫酸盐软骨素，4-甲氧基肉桂酸-2-乙基己基酯，聚甘油-2 四异硬脂酸酯，甘油，水，酒精，丁二醇，卵磷脂，山羊胶，云母，香料，苯甲醇，沉香醇，羟基香茅醛，α异甲基紫罗酮，戊基肉桂醛，己基肉桂醛，棕榈树萃取，香叶醇，苯甲酸苯甲酯，丁苯基甲基丙醛，苯氧乙醇，羟苯甲酯，羟苯丙酯，羟苯丁酯，二氧化钛，胭脂虫红

The results showed that the conversion reaction of hexose into hydroxymethyl furfural was the primary cause of forming the furfurals, and the efficiency of pentose transforming into furfural was lower.

试验结果表明：己糖转化为羟甲基糠醛的反应是水解液中糠醛类物质产生的主要原因，而戊糖向糠醛的转化率较低。

Saponin composition of common sugar glucose, galactose, rhamnose, arabinose, xylose and glucuronic acid, galacturonic acid, etc., are often associated with C3 Sapogenins-OH-bit connection into effect.

组成皂甙的糖常见的有葡萄糖、半乳糖、鼠李糖、阿拉伯糖、木糖及葡萄糖醛酸、半乳糖醛酸等，常与皂甙元C3位的-OH连接成甙。

Objective To investigate neutral saccharide composition in a soluble tea polysaccharide and their influence on determination of the uronic acid content in order to determine it accurately.

目的研究一种水溶性茶多糖中的中性糖组成及其对糖醛酸含量测定的影响，为准确测定茶多糖中糖醛酸含量提供参考依据。

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。

The molar ratio of sulfate ions to carboxylate ions is determined by conductometric titration method and the molecular weight is tested by high performance gel permeation chromatography. The precision of these two methods is also studied. To improve the detection sensitivity, guanidine hydrochloride is used as the best derivation reagent of 911. A systematic research is done on the optimum derivatization condition of 911 and Guanidine hydrochloride. The M /G ratio of 911 has direct relation to its biological activity.

论文首先对911的基本理化性质进行了系统的分析，以电导滴定法和高效凝胶渗透色谱法分别测定了分子中硫酸根羧酸根的比值和911的分子量，并探讨了两种分析方法的精密度。911分子没有紫外吸收，为提高检测灵敏度，本文采用荧光标记法，通过对三种荧光试剂与几种寡糖和多糖衍生效果的综合比较，最终确定了盐酸胍为最佳衍生试剂，并以911为代表详细探讨了衍生化反应的最优条件。911糖链结构与褐藻胶主链结构类似，以甘露糖醛酸和古罗糖醛酸的嵌段形式存在，分子中M/G比值与911的物理化学性质和生物活性有直接关系。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。