醛糖

The compositions and FTIR spectral characteristics of hydrolysis product were studied using GC and FTIR. The results indicated that ASP3 is a kind of pectic polysaccharide which contained the main part of homogalacturonan fragments as "smooth regions" with galacturonic acid and rhaminose, and rhamnogalacturonan segments as "hairy regions" backbone. Galactose, arabinose, mannose and glucose were linked as arabinogalactan, galactan and arabinan, which were the mainly constitution of the branch.

实验结果表明，ASP3是一种果胶多糖，主要由光滑区和毛发区（富含中性糖侧链的鼠李半乳糖醛酸聚糖）两部分组成：GalA和Rha位于多糖分子的主链，由于Rha含量较低，大部分GalA相连形成半乳糖醛酸聚糖光滑区；Gal、Ara、Man及Glc位于多糖分子的支链，其中Gal以较高的聚合度与主链相连，Ara以还原性末端或低聚寡糖的形式与主链相连或与半乳聚糖末端相连形成阿拉伯半乳聚糖。

Glyceraldehyde has a single asymm- etric carbon atom﹙the central one﹚ and so two stereoisomer﹙also called optical isomer﹚ are possible, that is two forms of glyceraldehyde, denoted as D- and L-glyceraldehyde, which are mirror images of each other

D-葡萄糖碳原子键合C-5的羟基和氢原子的位置与D-甘油醛相同称为D-型，同样L-型的甘油醛衍生出来的单糖称为L-型糖。

The paper studied on the relationships between H–factor and dissolving rates of main saccharides, ratio of total saccharides and pentose to total solid, and concentration of furfural and hydroxymethylfurfural in hot-water pre-extracted liquor of bamboo under different conditions.

本文研究了不同工艺条件下竹子热水预抽提过程中主要的糖类组分溶出率、总糖和戊糖占抽提液中固形物的比例及糠醛、羟甲基糠醛的生成随H因子的变化规律。

Calibration models were established by the spectral measurement of a set of hydrolyzed standard sugar solutions by treating with concentrated sulfuric acid and a chemometrical software.

其原理是基于样品中的糖经浓硫酸处理后生成有紫外吸收的糠醛和羟甲基糠醛，进行紫外波长吸收测定；通过化学计量学软件，根据一组已知糖浓度标准样品的多波长光谱和所对应组成浓度之间的数学关系，建立校正模型。

It was found that OTPS 2-1 was a trinal compound of polysaccharide containing rich uronic acid and little protein by using methods of UV, IR, GC, HPLC and GPC-LLS.

经GC，HPLC，UV，IR和GPC-LLS证实OTPS 2-1是富含糖醛酸和少量蛋白质的三元糖复合物，相对重均分子量为8.877×10^4，糖基由半乳糖、葡萄糖、阿拉伯糖、岩藻糖和鼠李糖组成，其摩尔比为

Unicolor during the period of florescence with the random block design of three factors. The results showed that the accumulation of MDA decreased. The content of soluble sugar, CAT activity and free proline increased with the increasing of potassium fertilizer application within 0 to 150 kg/hm^2. Potassium fertilizer application was more than 150 kg/hm^2, the result was opposite.

结果表明，施钾量在0~150 kg/hm^2范围内，随着钾肥施入量的增加，丙二醛含量降低，可溶性糖含量、过氧化氢酶活性和脯氨酸含量增加，但施钾量超过150 kg/hm^2时，丙二醛含量略有上升，可溶性糖含量、过氧化氢酶活性和脯氨酸含量有所下降。

During the kraft cooking process,the temperature,effective alkali charge and time affected the pulp HexA content significantly,and the variation of sulfidity did not influence the pulp HexA content.

在硫酸盐法蒸煮过程中，蒸煮温度、有效碱用量和保温时间对纸浆己烯糖醛酸的含量均有明显的影响，而硫化度则对纸浆中己烯糖醛酸的含量影响不大。

Methods: The standard curves,interference curves and equations ware established to calculate the contents of neutral sugar and uronic acid.

通过制备葡萄糖醛酸和葡萄糖的标准曲线和相互干扰曲线，联立方程来计算糖醛酸和中性糖含量。

Four fractions of OTPS was obtained by DEAE-52 column chromatography, and there were obvious differences not only in contents of neutral sugar, uronic acid and protein of OTPS, but also in inhibiting effects on hydroxyl radical

获得的乌龙茶多糖主要组分OTPS2-1是富含糖醛酸和少量蛋白质的三元糖复合物，相对重均分子质量为8.877 10^4，糖基由半乳糖、葡萄糖、阿拉伯糖、岩藻糖和鼠李糖组成，其摩尔比为

In the simulated experiments, the effects of long-term exposure of dibutyl phthalate on contents of malondialdehyde, solubility carbohydrate, blade pigment, protein, glutathione and amino acid of Vallisneria spiralis L were studied. The cultivation period was 25 days. The effects on the growth of Vallisneria spiralis L under the stress of DBP was also invertigated in this paper. Vallisneria spiralis L was damaged seriously in long-term exposure of high concentration DBP.

以沉水植物苦草为试验材料，通过模拟实验研究了邻苯二甲酸二丁酯长期暴露对苦草的生长状况以及丙二醛、可溶性糖、叶绿素、谷胱甘肽、蛋白质和氨基酸的含量等生理生化指标的影响，试验结果表明：高浓度DBP长期暴露对苦草生长有严重伤害，DBP对苦草丙二醛和可溶性糖含量以及叶片中叶绿素含量的影响比较相似，都有一定的起伏。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。