Xylan from birch wood
Molecular Structure:
MDL:
MFCD00082148
Molecular Formula:
Molecular Weight:
Alias:
Poly(β-D-xylopyranose[1→4])
Product order:
Name |
Specifications |
Packing |
Price |
Delivery |
Xylan from birch wood |
90% |
5g |
RMB 537.9 |
Consulting service |
Xylan from birch wood |
90% |
25g |
RMB 1716 |
Consulting service |
Character:
由木糖红β-1,4-糖苷键连接而成,分子量约 30000(200个糖单位),白色无定形粉末,不溶于冷水,溶于稀碱溶液,随样品不同,旋光度[α]D-71.2°到-109.5°。存在于陆上、海中的植物的茎中及谷皮中。先用稀碱从上述材料中抽提,然后加酸至PH值4.2使其沉淀,重复此过程,可制得较纯的木聚糖。
Quality Standard:
外观Appearance 淡黄色至棕色粉末
纯度Purity ≥90.0% (HPLC,xylose after hydrolysis)
Storage:
木聚糖(xylan)为多聚五碳糖,是半纤维素的一种,广泛存在于植物细胞壁中,是自然界含量仅次于纤维素的碳水化合物。木聚糖的结构单元是木糖,通过木糖苷键连接的木糖长链成为主链,在主链上部分基团被侧链基团取代,这些侧链基团有乙酰基、阿拉伯糖基、半乳糖基、葡萄糖醛酸基、香豆酸、阿魏酸等,木聚糖再通过侧链基团与植物的其余成分如纤维素、木质素、果胶相连接形成致密的结构,共同构成了植物体的支持骨架
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