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Inhibition of Long‐Term Retrogradation of Corn, Potato, and Pea Starches by Borax
Starch ( IF 2.6 ) Pub Date : 2020-08-22 , DOI: 10.1002/star.202000045 Na Ji 1 , Fang Li 1 , Mengting Yu 1 , Yanfei Wang 1 , Liu Xiong 1 , Qingjie Sun 1
Starch ( IF 2.6 ) Pub Date : 2020-08-22 , DOI: 10.1002/star.202000045 Na Ji 1 , Fang Li 1 , Mengting Yu 1 , Yanfei Wang 1 , Liu Xiong 1 , Qingjie Sun 1
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This work aims to develop a new method for inhibiting the long‐term retrogradation of normal corn starch, waxy corn starch (WCS), potato starch, and pea starch with borax. Differential scanning calorimetry results indicate that adding borax clearly reduces the retrogradation enthalpies of the four starches and decreases the crystallization rate constant. The percentage of retrogradation of WCS combined with 5% borax decreases to 12.06% compared with 69.67% for retrograded WCS without borax after 28 d at 4 °C. Low‐field nuclear magnetic resonance analysis shows that borax remarkably decreases the spin–spin relaxation time of the four starches. The results demonstrate that borax can be used as a new inhibitor and can retard the long‐term retrogradation of starch.
中文翻译：
硼砂对玉米，马铃薯和豌豆淀粉长期回生的抑制作用
这项工作旨在开发一种新的方法来抑制硼砂对正常玉米淀粉，糯玉米淀粉（WCS），马铃薯淀粉和豌豆淀粉的长期回生。差示扫描量热法结果表明，添加硼砂明显降低了四种淀粉的回生焓并降低了结晶速率常数。WCS结合5％硼砂的回生百分比降低至12.06％，而4°C下28 d后，不含硼砂的WCS的回生百分比为69.67％。低场核磁共振分析表明，硼砂显着减少了四种淀粉的自旋-自旋弛豫时间。结果表明，硼砂可以用作新型抑制剂，并且可以延缓淀粉的长期回生。
更新日期：2020-08-22
中文翻译：
硼砂对玉米，马铃薯和豌豆淀粉长期回生的抑制作用
这项工作旨在开发一种新的方法来抑制硼砂对正常玉米淀粉，糯玉米淀粉（WCS），马铃薯淀粉和豌豆淀粉的长期回生。差示扫描量热法结果表明，添加硼砂明显降低了四种淀粉的回生焓并降低了结晶速率常数。WCS结合5％硼砂的回生百分比降低至12.06％，而4°C下28 d后，不含硼砂的WCS的回生百分比为69.67％。低场核磁共振分析表明，硼砂显着减少了四种淀粉的自旋-自旋弛豫时间。结果表明，硼砂可以用作新型抑制剂，并且可以延缓淀粉的长期回生。
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