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Adsorption capacity and cold-water solubility of honeycomb-like potato starch granule.
International Journal of Biological Macromolecules ( IF 7.7 ) Pub Date : 2020-01-23 , DOI: 10.1016/j.ijbiomac.2020.01.224 Chenlu Fang 1 , Junrong Huang 1 , Qi Yang 1 , Huayin Pu 1 , Shuxing Liu 1 , Zhenbao Zhu 1
International Journal of Biological Macromolecules ( IF 7.7 ) Pub Date : 2020-01-23 , DOI: 10.1016/j.ijbiomac.2020.01.224 Chenlu Fang 1 , Junrong Huang 1 , Qi Yang 1 , Huayin Pu 1 , Shuxing Liu 1 , Zhenbao Zhu 1
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Honeycomb-like granules, with 2-4 μm pores on the surface, were prepared by heating potato starch suspensions in water at the pasting temperature. These granules with a yield of 84% were most amorphous (relative crystallinity 1.9%). Their total pore area was 0.668 m2/g, porosity was 73.4%, and mean particle size (D50) was 154.3 μm. The molecular weights (MW) of honeycomb-like granules were: amylopectin, 8.7 × 107 g/mol; amylose, 3.1 × 105 g/mol, close to those of native starch. The chain length distribution profiles of honeycomb-like granules were similar to those of native starch, while the proportions of B2 and B3 chains were higher. The water and oil adsorption of honeycomb-like granules were about 1.5 and 2.4 times those of native starch, respectively; and the cold water solubility of honeycomb-like granules was 88.5%, while native starch showed no solubility in cold water. Thus honeycomb-like starch granules have the potential to be applied as adsorbents, thickeners and adhesives for their dispersibility, adsorption capacity and cold water solubility.
中文翻译：
蜂窝状马铃薯淀粉颗粒的吸附能力和冷水溶解度。
通过在糊化温度下将马铃薯淀粉悬浮液在水中加热来制备表面具有2-4μm孔的蜂窝状颗粒。这些产率为84％的颗粒是最无定形的（相对结晶度为1.9％）。它们的总孔面积为0.668m2 / g，孔隙率为73.4％，平均粒径（D50）为154.3μm。蜂窝状颗粒的分子量（MW）为：支链淀粉，8.7×107g / mol；支链淀粉。直链淀粉，3.1×105 g / mol，接近天然淀粉。蜂窝状颗粒的链长分布特征与天然淀粉相似，而B2和B3链的比例更高。蜂窝状颗粒的水和油吸附分别是天然淀粉的约1.5倍和2.4倍。蜂窝状颗粒的冷水溶解度为88.5％，而天然淀粉在冷水中不显示溶解性。因此，蜂窝状淀粉颗粒由于其分散性，吸附能力和冷水溶解性而具有用作吸附剂，增稠剂和粘合剂的潜力。
更新日期：2020-01-23
中文翻译：
蜂窝状马铃薯淀粉颗粒的吸附能力和冷水溶解度。
通过在糊化温度下将马铃薯淀粉悬浮液在水中加热来制备表面具有2-4μm孔的蜂窝状颗粒。这些产率为84％的颗粒是最无定形的（相对结晶度为1.9％）。它们的总孔面积为0.668m2 / g，孔隙率为73.4％，平均粒径（D50）为154.3μm。蜂窝状颗粒的分子量（MW）为：支链淀粉，8.7×107g / mol；支链淀粉。直链淀粉，3.1×105 g / mol，接近天然淀粉。蜂窝状颗粒的链长分布特征与天然淀粉相似，而B2和B3链的比例更高。蜂窝状颗粒的水和油吸附分别是天然淀粉的约1.5倍和2.4倍。蜂窝状颗粒的冷水溶解度为88.5％，而天然淀粉在冷水中不显示溶解性。因此，蜂窝状淀粉颗粒由于其分散性，吸附能力和冷水溶解性而具有用作吸附剂，增稠剂和粘合剂的潜力。
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