In this work, untreated starch-rich potato peel waste was used as a starting material in preparation of cationized starch (CS)¹ in water solution with 2-chloro-3-hydroxypropyltrimethylammonium chloride (CHPTAC) as the cationization reagent. The impact of various factors (activation time, temperature, reaction time, the amount of CHPTAC and NaOH) on the degree of substitution (DS) of CS was studied by using experimental design. The DS values were determined by ¹H NMR. The highest DS (0.40) was obtained when the reaction time was 8 h, temperature 30 °C, the molar ratio of CHPTAC and NaOH to AGU 3 and 3.75, respectively. The prepared CS was successfully used to remove sulfate ions from an aqueous solution with ultrafiltration technique. Sulfate is a major pollutant of water bodies so development of efficient techniques for its removal is detrimental. The removal of sulfate in study was 74% at best.

中文翻译：

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食品工业废料中阳离子淀粉的制备及其在水溶液中硫酸盐去除中的应用

在这项工作中，使用未经处理的富含淀粉的马铃薯皮废料作为原料，以2-氯-3-羟丙基三甲基氯化铵（CHPTAC）作为阳离子化试剂制备水溶液中的阳离子化淀粉（CS）¹。通过实验设计研究了各种因素（活化时间，温度，反应时间，CHPTAC和NaOH的量）对CS的取代度（DS）的影响。DS值由¹确定1 H NMR。当反应时间为8 h，温度为30°C，CHPTAC和NaOH与AGU 3和3.75的摩尔比分别为最高时（0.40）。制备的CS成功地用于通过超滤技术从水溶液中去除硫酸根离子。硫酸盐是水体的主要污染物，因此开发有效的去除硫酸盐技术是有害的。研究中的硫酸盐去除率最高为74％。