彩票达人快三

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                直链淀粉

                更新:2018-11-28 11:46:01

                  中文名:直链淀粉
                  英文名:Amylose, from Potato
                  别名:
                  CAS No.:9005-82-7级别:Type Ⅲ
                  分子式:分子量:
                订购信息
                  货号规格价格品牌
                  A0512-250mg250mg440GBCBIO
                  A0512-1g1g1106GBCBIO
                  A0512-1g1g644Sigma
                产品介绍
                  Solvent Content (%).............................≤10
                  Blue &#118alue (%)...........................≤0.5
                  直链淀粉是D-葡萄糖基以a-(1,4)糖苷◥键连接的多糖链,分子中有200个左右葡萄糖基,分子量l~2×105,聚合度990,空间构象卷曲成螺旋形,每一回转为6个葡萄糖基。支链淀粉分子中除有a-(1,4)糖苷键的糖链外,还有a-(1,6)糖苷键连接的分◣支,分子中含300~400个葡萄糖基,分子量>2×107,聚合度7200,各◣分支也都是卷曲成螺旋形。淀粉与碘呈颜色反应,直链淀粉为蓝色,支链淀粉为紫色。
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