| 酸酶序解法制备高吸水性玉米多孔淀粉的研究 |
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| 引用本文： | 刘成程,边六交,陈超.酸酶序解法制备高吸水性玉米多孔淀粉的研究[J].化学与生物工程,2010,27(2):57-61. |
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| 作者姓名： | 刘成程 边六交 陈超 |
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| 作者单位： | 西北大学生命科学学院,国家微检测系统工程技术研究中心,陕西,西安,710069 |
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| 摘 要： | 以玉米淀粉为原料,采用酸酶序解法制备了高吸水性玉米多孔淀粉。通过单因素实验和正交实验研究了酸酶序解过程中各主要因素对多孔淀粉吸水性能的影响。确定最佳酸处理条件为:盐酸质量浓度3.0%、淀粉乳质量浓度40%、处理时间70 min、处理温度50℃;最佳酶解条件为:复合酶加量为理论水解量的40%、酶解时间18 h、酶解温度40℃、pH值4.0。用该酸酶序解法制备的玉米多孔淀粉的吸水率为156.98%,比传统的单用复合酶解法提高约20%。
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| 关 键 词： | 玉米多孔淀粉 酸处理 酸酶序解 吸水率 |
Study on Preparation of High Water-Absorbing Porous Corn Starch Through Sequential Hydrolysis Method of Hydrochloric Acid and Composite Enzyme |
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| LIU Cheng-cheng,BIAN Liu-jiao,CHEN Chao.Study on Preparation of High Water-Absorbing Porous Corn Starch Through Sequential Hydrolysis Method of Hydrochloric Acid and Composite Enzyme[J].Chemistry & Bioengineering,2010,27(2):57-61. |
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| Authors: | LIU Cheng-cheng BIAN Liu-jiao CHEN Chao |
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| Abstract: | A sequential hydrolysis method of hydrochloric acid and composite enzyme was presented for the preparation of high water-absorbing porous corn starch.The effects of main factors on the water-absorbing rate of porous corn starch were investigated by single factor experiment and orthogonal experiment.The optimum acid pretreatment conditions of the raw corn starch were determined as follows: the concentration of hydrochloric acid 3.0%(W/V),the concentration of raw corn starch slurry 40%(W/V),the treatment temp... |
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| Keywords: | porous corn starch hydrochloric acid pretreatment sequential hydrolysis of hydrochloric acid and composite enzyme water-absorbing rate |
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