KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Varietal and Annual Variations of β-Glucan Contents in Korean Barley (Hordeum vulgare L.) and Oat (Avena sativa L.) Cultivars

  • Lee, Mi-Ja (National Institute of Crop Science, Rural Development Administration) ;
  • Yoo, Jae-Soo (National Institute of Crop Science, Rural Development Administration) ;
  • Kim, Yang-Kil (National Institute of Crop Science, Rural Development Administration) ;
  • Park, Jong-Chul (National Institute of Crop Science, Rural Development Administration) ;
  • Kim, Tae-Soo (National Institute of Crop Science, Rural Development Administration) ;
  • Choi, Jae-Seong (National Institute of Crop Science, Rural Development Administration) ;
  • Kim, Kee-Jong (National Institute of Crop Science, Rural Development Administration) ;
  • Kim, Hyung-Soon (Department of Environmental & Chemical Engineering, Seonam University)
  • Received : 2011.08.03
  • Accepted : 2011.09.26
  • Published : 2011.09.30
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Abstract

Varietal and annual variations in the contents of ${\beta}$-glucan fractions per weight grain samples were examined in sixteen covered and eighteen naked barley and five oat cultivars developed in Korea. Also, the effect of pearling on ${\beta}$-glucan content was investigated. Average contents of total, soluble and insoluble ${\beta}$-glucan fractions were 5.25, 3.72, and 1.53%, respectively, in covered barley, and 5.86, 3.51, and 2.35%, respectively, in naked barley. Soluble ${\beta}$-glucan content was higher in covered barley, though total ${\beta}$-glucan content higher in naked barley. The total and insoluble ${\beta}$-glucan contents were higher in pearled grains. Total ${\beta}$-glucan content was higher in waxy barley than in non-waxy barley. Duwonchapssalbori, a two-rowed and waxy naked barley cultivar, was highest in total, soluble and insoluble ${\beta}$-glucan contents. Highly significant positive correlations were observed between total ${\beta}$-glucan and soluble ${\beta}$-glucan contents both in covered and naked barley. There were significant annual variations in total ${\beta}$-glucan content in barley. Average contents of total, soluble and insoluble ${\beta}$-glucans of oat cultivars were 4.33, 3.44, and 0.89%, respectively. Contents of all fractions of ${\beta}$-glucans were higher in barley than in oat. These results would be useful for the breeding of high ${\beta}$-glucan variety and also for the use barley and oat as valueadded food ingredients.

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References

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