...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Starch: International Journal for the Investigation, Processing and Use of Carbohydrates and their Derivatives: Internationale Zeitschrift fur die Erforschung, Verarbeitung und Verwendung von Kohlenhydraten und deren Derivaten >Effect of pH on the physicochemical and binder properties of tigernut starch
【24h】

Effect of pH on the physicochemical and binder properties of tigernut starch

机译：pH值对虎仁淀粉理化性质和黏结性能的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Tigernut starch is starch extracted from the tubers of Cyperus esculentus L. a perennial herb commonly known as tigernut. The effect of pH on the foaming, gelatinization, solubility, swelling, paste clarity, viscosity, freeze-thaw stability, and binder efficiency of the starch in buffer solutions of pHs 4, 7, and 9.2, representative of acid, neutral, and alkaline pHs were evaluated. Marked pH responsiveness was observed in all these parameters to varying degrees. The foaming capacity, paste clarity,freeze-thaw stability, swelling, and viscosity increased while only the gelatinization temperature decreased with increasing pH. The pastes obtained at pHs 4 and 7 showed marked instability by forming a mass of hard coarse gel with the first freeze-thawcycle while the paste of pH 9.2 maintained its normal viscoelastic-gel texture even after the fourth freeze-thaw cycle. The properties of the ascorbic acid granules and tablets produced by wet granulation, using the pastes as binder showed pH-responsiveness, with the granule formed with the paste of pH 9.2 showing higher mechanical strength and lower disintegration time. This study thus shows the diversity in the physicochemical and binder properties of tigernut starch with changes in pH.
机译：老虎坚果淀粉是从莎草（Cyperus esculentus L.）的块茎中提取的淀粉。 pH对淀粉在pH 4、7和9.2的缓冲溶液（代表酸，中性和碱性）中的起泡，糊化，溶解度，溶胀，糊状透明度，粘度，冻融稳定性和粘合剂效率的影响评估pH。在所有这些参数中都观察到了不同程度的明显pH响应性。发泡能力，糊状透明度，冻融稳定性，溶胀性和粘度增加，而仅糊化温度随pH升高而降低。在pH 4和7下获得的糊剂通过在第一冻融循环中形成大量的硬质粗凝胶而显示出明显的不稳定性，而pH 9.2的糊剂即使在第四冻融循环之后仍保持其正常的粘弹性凝胶质地。通过将糊剂用作粘合剂的湿法制粒制备的抗坏血酸颗粒和片剂的性质显示出pH响应性，由pH 9.2的糊剂形成的颗粒显示出较高的机械强度和较短的崩解时间。因此，这项研究显示了随着pH值的变化，虎形淀粉的理化性质和粘合剂性质的多样性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号