β -葡聚糖是青稞籽粒的重要品质性状之一，为青稞水溶性膳食纤维的重要组成部分，较高含量的β -葡聚糖具有改善肠道健康、降血糖和血脂、预防肿瘤、提高免疫力等功能特点。为了给青稞籽粒β -葡聚糖的深入研究及应用提供参考，通过查阅近年相关文献，在对青稞籽粒β -葡聚糖的含量、功能特点、合成机制进行了总结和归纳的基础上，综述了影响青稞籽粒β -葡聚糖含量的因素、β -葡聚糖与糖代谢的关系及其相关酶和基因，并对今后的研究进行了展望。

β-glucan is an important quality trait in hulless barley, it is an important component of water-soluble dietary fiber in hulless barley. High content of β-glucan has the functions of improving intestinal health, lowering blood sugar and lipid, preventing tumor, improving immunityetc. In this paper, based on the summary of β-glucan content, functional characteristics, synthesis mechanism, factors affecting the content of β-glucan in hulless barley grains, relationship between β-glucan and glucose metabolism and related enzymes and genes were reviewed in order to provide scientific reference for research and application of β-glucan in hulless barley grains, and research prospect in this field was made as well.

TS261.2

国家自然基金(32260535)；甘肃省青年科技基金(20JR5RA101)；甘肃省农业科学院中青年基金项目(2020GAAS37，2021GAAS38)。