鼠李糖

Later discovered that some compounds structurally similar with sugar, but the composition could not be expressed to spend, such as rhamnose (C6H12O5), deoxyribose (C5H10O4) and so on.

后来发现有些化合物结构上与糖相似，但组成不能用上式表示，如鼠李糖（C6H12O5），脱氧核糖（C5H10O4）等。

It can be concluded that (1) forosamine on 17-carbon can be easily lost, but difficult for rhamnose sugar;(2) spinosad concentration decreased when irradiation time increased, degrading rate was up to about 70% for irradiating 484 min, and 11 degradates were produced. These degradates were products of the oxidation, reduction, and hydrolytic reactions.

结果表明，多杀菌素17碳上的福乐糖胺容易失去，三氧甲基鼠李糖很稳定；多杀菌素浓度随紫外光照射时间的增加而降低，在照射484 min后，降解率达到70%左右，形成11种降解产物，这些降解产物是多杀菌素A或D经氧化、还原及水解等反应形成。

The contents of rhamnose, xylose, mannose, glucose, galactose are determinated. The average recovery ranges from 94.7% to 99.2%...

鼠李糖、木糖、甘露糖、葡萄糖、半乳糖的回收率在 94 。7%～ 99.2 %之间，变异系数在 3.2 5%～ 6.74 %之间。

It was preliminarily determined that the polysaccharide in flower contains glucose, pentose; and the polysaccharide in stem contains glucose, rhamnose and pentose.

初步判断珍珠梅花中多糖含葡萄糖和戊醛糖；茎中多糖合葡萄糖、鼠李糖、戊醛糖。

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 monosaccharide are made up of rhamnose, glucose, mannitose, galactose and xylose. It offers foundation for boosting biological activities by hydrolyzing saponins.

硅胶薄层层析证明刺嫩芽皂甙的单糖可能由鼠李糖、葡萄糖、甘露糖、半乳糖和木糖组成，这为酶水解提高刺嫩芽皂甙活性研究提供了依据。

Compound 9 is glycosylated in the presence of TMSOTf with rhamose-derived trichloroacetimidates to provide target trisaccharide Saponin 1, oleanolic acid 3-yl-2,4-di-O-a-L-rhamnopyranosyl -p-D-glucopyranosideCoumpond 18 is prepared with oleanic acid and Bromide 11 through phase-thansfer catalysis glycosylation manner.

三糖皂苷Saponin 1是以葡萄糖齐墩果酸皂苷为起始原料，用BBTZ(1-苯甲酰苯并噻唑)选择性保护葡萄糖3′，6′-羟基得到化合物9，然后以化合物9为糖基受体，进行一步糖苷化可以在化合物9的2′，4′-羟基上同时引入两分子鼠李糖，最后脱掉所有的保护基得到目标化合物Saponin1。

The monosaccharide compositions were identified as mannose and rhamnose; the lipid compositions included decanoic acid, lauric acid, hexadecanoic acid and stearic acid, and the protein constituents were composed of sixteen amino acids.

进一步研究证实，该乳化剂糖类的单糖组成为甘露糖和鼠李糖；脂类由十碳、十二碳、十六碳及十八碳脂肪酸组成；蛋白质由16种氨基酸构成。

According to Gas Chromatography infra-red spectra analysis, the four fractions all contain different quantities of arabinose , galactose, glucose and seminose, VLP-2 and VLP-3 also contain rhamnose and xylose, polysaccharide configuration may have B -D-pyran glucose.

以粗多糖为起始原料计算，四个级分的纯品多糖得率分别为：VLP—1为25.32％，VLP—2为50.82％，VLP—3为7.55％，VLP—4为10.41％。根据气相色谱分析表明，四个级分的多糖都含有不同量的阿拉伯糖、半乳糖、葡萄糖、甘露糖，VLP—2、VLP—3还含有鼠李糖和木糖。

Two oligosaccharides, a hexasaccharide fragment of group E Streptococcus polysaccharide and a tetrasaccharide repeating unit of E. coli O7: K98: H6, consisting of α-(1→2)-and α-(1→3)-linked rhamnose backbones were synthesized in a regio-and-stereoselective manner.

以三氯乙酰亚胺酯为供体，不保护或部分保护的糖为受体，成功地合成了以α-（1→2）-和-α（1→3）-交替连接的鼠李糖为主链的GroupE Streptococcus六糖和E.coli O7：K98：H6四糖。

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。