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The technique of extracting araboxylan in wheat bran and its analysis technique of chemical structure and the molecular weight were introduced. 文章介绍了从小麦麸皮中提纯阿糖基木聚糖这一重要化学物质的工艺方法及对提取的阿糖基木聚糖的化学结构、分子量的分析技术。