从不同品种麦麸中分离阿拉伯木聚糖和富含纤维素的阿拉伯木聚糖及其功能,Food Hydrocolloids

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从不同品种麦麸中分离阿拉伯木聚糖和富含纤维素的阿拉伯木聚糖及其功能
Food Hydrocolloids ( IF 11.0 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.foodhyd.2020.106287
Amritpal Kaur , Balwinder Singh , Madhav P. Yadav , Seerat Bhinder , Narpinder Singh

摘要本研究评估了水提物 (WE) 和碱提物 (AE) Hemi-B 的产率、乳化性、抗氧化性、蛋白质含量和氨基酸组成以及富含纤维素的阿拉伯木聚糖 (CAX) 的持水能力和蛋白质含量。 ) 从四种小麦品种的麸皮中分离出来的部分。据观察，C-306 品种的 CAX 具有最低的蛋白质含量（3.83%）和最高的持水能力（16.13%）。AE-Hemi-B 和 WE-Hemi-B 馏分的总酚含量分别为 4.54 至 7.47 毫克阿魏酸当量 (FAE)/g 和 3.51-4.91 毫克 FAE/g。除 HS-490 的 AE-Hemi-B 部分外，结合酚含量高于游离酚含量。AE-Hemi-B 具有异常高的结合酚类和抗氧化剂含量。1364 cm−1 处的 FTIR 波段，1028 cm-1 和 849 cm-1 证实了高度支化的阿拉伯木聚糖结构的存在。1520 cm-1 处的带信号证实了酚环结构的存在，这是阿魏酸的特征。在加速温度（60°C）下储存后，WE-Hemi-B 的乳液稳定性急剧下降。然而，所有 AE-Hemi-B 都产生了良好的乳液，除了 HD-2967 品种，其乳液稳定性最差，而 C-306 产生异常稳定的乳液，优于众所周知的玉米纤维胶，在加速条件下长达 3 天贮存。在加速温度 (60 °C) 下储存后。然而，所有 AE-Hemi-B 都产生了良好的乳液，除了 HD-2967 品种，其乳液稳定性最差，而 C-306 产生异常稳定的乳液，优于众所周知的玉米纤维胶，在加速条件下长达 3 天贮存。在加速温度 (60 °C) 下储存后。然而，所有 AE-Hemi-B 都产生了良好的乳液，除了 HD-2967 品种，其乳液稳定性最差，而 C-306 产生异常稳定的乳液，优于众所周知的玉米纤维胶，在加速条件下长达 3 天贮存。

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Isolation of arabinoxylan and cellulose-rich arabinoxylan from wheat bran of different varieties and their functionalities

Abstract The study evaluated the yield, emulsifying, antioxidant properties, protein content and amino acid composition of water-extractable (WE) and alkali-extractable (AE) Hemi-B and the water holding capacity and protein content of cellulose-rich arabinoxylan (CAX) fractions isolated from the bran of four wheat varieties. It was observed that CAX from the variety C-306 possessed the lowest protein content (3.83%) and the highest water holding capacity (16.13%). Total phenolic content of AE-Hemi-B and WE-Hemi-B fractions varied from 4.54 to 7.47 mg ferulic acid equivalents (FAE)/g and 3.51–4.91 mg FAE/g, respectively. Except for the AE-Hemi-B fraction of HS-490, bound phenolic content was higher than free phenolic content. AE-Hemi-B had exceptionally higher bound phenolic and antioxidant content. FTIR bands at 1364 cm−1, 1028 cm−1 and 849 cm−1confirmed the presence of a highly branched arabinoxylan structure. The presence of phenolic ring structure, characteristic of ferulic acid, was confirmed by the band signal at 1520 cm−1. The emulsion stability of WE- Hemi-B decreased drastically, after storage at accelerated temperature (60 °C). However, all AE-Hemi-B yielded good emulsions, expect HD-2967 variety, which exhibited the poorest emulsion stability, while, C-306 yielded exceptionally stable emulsion, better than well-known corn fiber gum, up to 3 days under accelerated storage.

更新日期：2021-03-01

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