Amylose, from Potato
Update:2015/1/1 4:49:23
| Item: | Amylose, from Potato | ||
| Synonym: | |||
| CAS No.: | 9005-82-7 | Special Grade: | Type Ⅲ |
| Formula: | M.W.: | ||
Order
| Product No. | Size | Price | Brand |
| A0512-250mg | 250mg | 180 | GBCBIO |
| A0512-1g | 1g | 475 | GBCBIO |
| A0512-1g | 1g | 644 | Sigma |
Introduction
| Solvent Content (%).............................≤10 Blue &#118alue (%)...........................≤0.5 |
| 直鏈淀粉是D-葡萄糖基以a-(1,4)糖苷鍵連接的多糖鏈,分子中有200個(gè)左右葡萄糖基,分子量l~2×105,聚合度990,空間構(gòu)象卷曲成螺旋形,每一回轉(zhuǎn)為6個(gè)葡萄糖基。支鏈淀粉分子中除有a-(1,4)糖苷鍵的糖鏈外,還有a-(1,6)糖苷鍵連接的分支,分子中含300~400個(gè)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。淀粉與碘呈顏色反應(yīng),直鏈淀粉為藍(lán)色,支鏈淀粉為紫色。 |
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