uronic acid

An analytical experiment on eucalyptus was carried out. Apart from the substances extracted by hot water, there were lignin, pentosan, hexosan, resin and uronic acid in 1% NaOH extracts.

对蓝桉原料进行了分析试验，蓝桉1%NaOH抽出物中除了溶出热水抽提出的物质外，还可溶出部分木素、戊聚糖、己聚糖、树脂及糖醛酸等。

Heparin and heparan sulfate are linear polysaccharides consisting of repeating disaccharide units of uronic acid –( 1 4)-D-glucosamine.

肝素和硫酸乙酰肝素是由糖醛酸一（1&4）一D一氦基葡萄糖的重复二糖单元组成的线性多糖。

Contained about 86.91% of total sugar, with 80.48% uronic acid; main chain maded up of-linkage;

总糖含量为86.91%，糖醛酸含量为80.48%，以β-型糖苷键为主键的蛋白结合多糖；

Physico-chemical characteristics analysis indicated that two polysaccharides do not contain monosaccharose, uronic acid, protein and polyphenols. Therefore, it can be concluded that they are non-starch neutral pure polysaccharides.

经过理化性质鉴定分析发现两种菌类食物活性多糖中都不含游离单糖、糖醛酸、蛋白质、多酚类物质等，均为非淀粉类中性纯粹多糖。

Uronic acid can be synthesized by oxidation of monosaccharide.

目前糖醛酸的合成主要是以单糖为原料氧化而得.

Objective : To determined the contents of neutral saccharide and uronic acid in polysaccharide of Ganoderma applanatum.

目的: 测定树舌多糖中中性糖及糖醛酸的含量.