关键词: 青稞, β-葡聚糖, 黄酮, 花青素, 环境因子

Abstract: In order to investigate the effect of plateau production environment on functional nutritional ingredients of highland barley, this paper analyzed 3 special nutritional ingredients of highland barly from 18 counties, including β-glucan, flavonoids and anthocyanin. The results showed that flavonoids was negative correlated with annual accumulated temperature, and positively correlated with altitude. There was certain threshold for the inhibitory effect of annual rainfall on β-glucan, when the annual rainfall was over 600 mm, β-glucan content would obviously decrease. The β-glucan content was the highest, when altitudes were in the scope of 3 580~3 850 m. Annual rainfall had the greatest influence on anthocyanin content in colored highland barley. The effects of altitude on anthocyanin content in different colored highland barley were different, while the effects of other factors on anthocyanin content were not significant. This study provided theoretical basis for breeding, popularization and processing of barley in Tibet plateau.

Key words: highland barley, β-glucan, favonoids, anthocyanin, environmental factor