阿拉伯糖

Objective To establish a HPLC-ELSD method for the determination of arabinose.

目的建立高效液相色谱-蒸发光散射检测法测定阿拉伯糖含量的方法。

Results The soluble tea polysaccharides were mainly consisted of arabinose, galactose, and glucose.

结果 10种水溶性茶多糖样品的主要单糖组成为阿拉伯糖、半乳糖以及葡萄糖。

The average molecular mass of polysaccharide is 8.6×10^4 u. Polysaccharide is composed of glucose, arabinose and uronic acid. There is no absorption peak of protein and nucleic acid at 280 and 260 nm.

大叶金花草多糖平均分子质量为8.6×10^4 u，由阿拉伯糖、葡萄糖和糖醛酸组成，在260和280nm处有多糖无核酸和蛋白质的吸收峰。

Arabinose/cysteine 0.4∶0.4 in aqueous phase was selected as model system and reacted at 120 ℃ for 2h under pH 5 condition.

选择0.4∶0.4的D-阿拉伯糖/L-半胱氨酸水相体系为模型体系，在120℃pH5的条件下反应2 h。

Synthesis of Glycosides of Arabinose Ⅱ.

阿拉伯糖苷类化合物的合成Ⅱ。

Operon containing genes that metabolize the sugar arabinose.

含有阿拉伯糖代谢基因的操纵子。

The influence of hydrolysis time、temperature、acid concentration and solid to liquid ratio on xylose、 arabinose and acetic acid concentration are assessed by single factor.

单因素法考察了水解时间、温度、酸浓度以及料液比对木糖、阿拉伯糖、乙酸浓度的影响，并用均匀设计法优化了麦糟水解条件，确定了水解的最佳工艺条件100.4mgH2SO4/g干麦糟，温度138℃，料液比1∶6，时间270min。

GC/MS analysis of sugar compositions from non-cellulose wall polysaccharide fractions revealed that fiber primary cell walls contained significantly higher amounts of arabinose, rhamnose and galacturonic acids whereas more xylose and glucose were found in ovule samples.

气相色谱分析细胞壁非纤维素多糖成分发现，与胚珠组织相比，快速伸长的纤维初生细胞壁含有显著多的阿拉伯糖、鼠李糖和半乳糖醛酸，而木糖和葡萄糖较少。

The purified recombinant enzyme had optimal reaction conditions at pH 5.0 and 80 °C, was stable between pH 4.0 and pH 6.0. The enzyme had residual activity of 60% at 95 °C for 6 h at pH 5.0, thus has considerable potential in industrial applications. The specific activities of the enzyme to salicin, p-Nitrophenyl β-D-glucopyranoside, p-nitrophenyl β-D-xylopyranoside and p-nitrophenyl α-D-glucopyranoside were: 57500 U/mg, 1632 U/mg, 109 U/mg, and 39 U/mg, respectively, the specificity of salicin was the highest, p-nitrophenyl β-D-glucopyranoside followed, no activities to xylan and arabinofuranoside.

重组 Tm-SIGlA 的酶学性质研究表明：该酶最适作用温度和最适作用 pH 分别为80 ℃和 pH 5.0；在 pH 4.0-6.0 之间酶活性稳定，95 ℃保温 6 h 残留活性为 60%，具有非常高的热稳定性；在所测定的底物中，该酶对水杨苷、对硝基苯酚-β-D-葡萄糖苷(p-Nitrophenyl β-D-glucopyranoside)、对硝基苯酚-β-D-木糖苷(p-Nitrophenyl β-D-xylopyranoside)和对硝基苯酚-α-D-葡萄糖苷(p-Nitrophenyl α-D-glucopyranoside)的比酶活分别为：57500 U/mg、1632 U/mg、109 U/mg 和39 U/mg，作用水杨苷的专一性最强，其次为对硝基苯酚-β-D-葡萄糖苷，没有检测到对木聚糖和阿拉伯糖苷的活性。

Become the pharmacodynamical functional group to realize the direct connection on body's endo-sugar with amino acid, and then to make the function of discharging lead after sugar taking amino acid into cell to complex with lead.

本论文选择葡萄糖和阿拉伯糖作为药动团，L-半胱氨酸等其它侧链氨基酸作为药效团，实现人体内源性糖和氨基酸的直接相连，从而发挥糖携带氨基酸进入细胞螯合排铅的作用。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失