| 显微图分析马铃薯直链淀粉对氯化钠的吸附作用 |
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| 引用本文： | 刘立增,康海岐,孟宪昉,连喜军. 显微图分析马铃薯直链淀粉对氯化钠的吸附作用[J]. 西部粮油科技, 2014, 0(3): 47-49 |
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| 作者姓名： | 刘立增 康海岐 孟宪昉 连喜军 |
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| 作者单位： | [1]天津商业大学理学院化学系,天津300134 [2]四川省农业科学院作物研究所,成都610066 [3]天津商业大学天津市食品生物技术重点实验室生物技术与食品科学学院,天津300134 |
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| 基金项目： | 国家自然科学基金项目（31271935）资助 |
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| 摘 要： | 以马铃薯淀粉为原材料,通过回生法制备得到马铃薯直链淀粉,进而利用显微图分析其对不同浓度氯化钠的吸附作用。研究结果表明,氯化钠首先在马铃薯直链淀粉的非还原端吸附聚集,随后沿着淀粉链不断向前聚集,被吸附后的氯化钠不能形成规则的立方形晶体。淀粉液中氯化钠浓度高于1 mol/L时,聚集6 h后未被淀粉吸附的氯化钠可聚集形成规则立方形晶体。氯化钠可能通过竞争水分子与直链淀粉的结合降低淀粉糊的黏度。
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| 关 键 词： | 马铃薯直链淀粉 氯化钠 吸附作用 |
The Analysis of Asorption of NaC1 by Potato Amylose in Method of Micrographes |
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| LIU Lizeng,KANG Haiqi,MENG Xianfang,LIAN Xijun. The Analysis of Asorption of NaC1 by Potato Amylose in Method of Micrographes[J]. China Western Cereals & Oils Technology, 2014, 0(3): 47-49 |
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| Authors: | LIU Lizeng KANG Haiqi MENG Xianfang LIAN Xijun |
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| Affiliation: | 1. School of Science, Tianjin University of Commerce, Tianjin 300134. 2. Crops Research Institute, Sichuan A- cademy of Agricultural Science, Chengdu 610066. 3. The Tianjin Key Laboratory of Food Biotechnology,Depart- ment of Biological Technology and Food Science,Tianjin University of Commerce,Tianjin 300134) |
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| Abstract: | Potato amylose was prepared from its native starch by the method of retrogradation, and the absorption of NaC1 with different concentrations by potato amylose was analyzed by micrographes. The results showed that absorbed sodium chloride first gathered at the non-reducing end of potato amylose, then moved forward along the starch chain. The adsorbed sodium chloride can not form a regular cuboidal crystal. The non-absorbed sodium chloride could form regular crystals when its concentrations in starch solutions were above 1 mol/L and the absorption time was above 6 h. The starch paste viscosity was lowered by addition of sodium chloride possibly through a competition of combination of amylose with water molecules. |
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| Keywords: | potato amylose NaC1 absorption |
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