Variability in free and total ferulic acid content in spring barley caryopses
2012
Ehrenbergerova, J., Mendelova Univ., Brno (Czech Republic). Ustav Pestovani, Slechteni Rostlin a Rostlinolekarstvi | Prokopcova, Z., Mendelova Univ., Brno (Czech Republic). Ustav Pestovani, Slechteni Rostlin a Rostlinolekarstvi | Belakova, S., Vyzkumny Ustav Pivovarsky a Sladarsky, Brno (Czech Republic). Sladarsky Ustav | Cerkal, R., Mendelova Univ., Brno (Czech Republic). Ustav Pestovani, Slechteni Rostlin a Rostlinolekarstvi | Pluhackova, H., Mendelova Univ., Brno (Czech Republic). Ustav Pestovani, Slechteni Rostlin a Rostlinolekarstvi | Vaculova, K., Agrotest Fyto, Kromeriz (Czech Republic) | Smutna, P., Mendelova Univ., Brno (Czech Republic). Ustav Pestovani, Slechteni Rostlin a Rostlinolekarstvi
Varietal differences in free ferulic acid contents were determined in spring barley caryopses. The highest content of free ferulic acid on two years' average (2007 and 2008) was found in the variety Sebastian (15.68 mg/kg) differing significantly from all the other varieties under study. The highest total ferulic acid content on two years' average was recorded in the varieties Jersey (984.10 mg/kg) and Tolar (973.02 mg/kg) and differing thus significantly from some of the varieties in the set. Years of growing also affected free and total ferulic acid concentrations significantly. The average concentration of free ferulic acid of the set of varieties was significantly higher in 2007 than in 2008 (14.06 mg/kg vs. 10.88 mg/kg). On the contrary, significantly higher average level of total ferulic acid was determined in 2008 (972.98 mg/kg) vs. 2007 (822.21 mg/kg). These findings could be due to different temperature and moisture conditions of the growing years and interactions of these conditions and varieties. We can conclude that both free and total ferulic acid concentrations were significantly affected by varieties, weather conditions and interactions between these factors.
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