Hemicellulose from pulp mill process water and crop residuals from food production often end up in waste streams or burnt for energy contribution. These waste products contain valuable biopolymers but lack many attributes needed for use in applications such as food and medical or consumer products. This study reports on an investigation of the periodate oxidation of hardwood xylan and arabinoxylan (AX) from wheat bran to produce materials with new functionalities. The study explores how to control the oxidation degree and describes structural differences between the two xylan-based polymers. For the xylan samples, the oxidation resulted in a lowering of the glass transition temperature (T_g), indicating a more flexible chain due to ring-opening of the xylan anhydro-sugar units. For the AX samples, the arabinose side-groups were instead oxidized, hindering oxidation on part of the xylose units, which resulted in a crosslinked network with an unchanged T_g but reduced intrinsic viscosity.

制浆厂生产的水中的半纤维素和食品生产中的农作物残渣通常最终变成废物流或燃烧以产生能量。这些废品包含有价值的生物聚合物，但缺乏食品，医疗或消费品等应用所需的许多属性。这项研究报告了对麦麸中硬木木聚糖和阿拉伯木聚糖（AX）的高碘酸盐氧化以生产具有新功能的材料的研究报告。该研究探索了如何控制氧化程度，并描述了两种木聚糖基聚合物之间的结构差异。对于木聚糖样品，氧化导致玻璃化转变温度（T _g）降低。），表示由于木聚糖脱水糖单元的开环，链条更加灵活。对于AX样品，阿拉伯糖侧基反而被氧化，阻碍了部分木糖单元的氧化，这导致交联网络的T _g不变，但固有粘度降低。