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United States Department of Agriculture

Agricultural Research Service

Title: Phenolic and Short-Chained Aliphatic Organic Acid Constituents of Wild Oat (Avena fatua L.) Seeds)

Author
item Gallagher, Robert
item Ananth, Rohit
item Bradley, Brosi
item Granger, Kristen
item Anderson, James
item Fuerst, E.patrick

Submitted to: Journal of Agricultural and Food Chemistry
Publication Type: Peer reviewed journal
Publication Acceptance Date: 11/30/2009
Publication Date: 1/13/2010
Citation: Gallagher, R.S., Ananth, R., Granger, K., Bradley, B., Anderson, J.V., Fuerst, E.P. 2010. Phenolic and Short-Chained Aliphatic Organic Acid Constituents of Wild Oat (Avena fatua L.) Seeds. Journal of Agricultural and Food Chemistry. 58:218-225. DOI:10.1021/jf9038106.

Interpretive Summary: The objective of this research was to identify and quantify the phenolic acids present in the seeds 3 of three wild-type populations of wild oat and compare these results to the phenolic acid 4 composition and concentration of seeds from two commonly utilized wild oat isolines (M73 and 5 SH430). Phenolic acids have been shown to serve as germination inhibitors, as well as protection 6 for seeds from biotic and abiotic stress factors in other species. The various populations of wild 7 oat were grown under a ‘common garden’ environment to remove maternal variation and the 8 resulting seeds were extracted to remove the readily soluble and chemically bound phenolic acid 9 components. Phenolic acids were identified and quantified using gas chromatography – mass 10 spectrometry. Ferulic and p-coumaric acid comprised 99% of the total phenolic acids present in 11 the seeds, of which 91% were contained in the hulls and 98% were in the chemically bound 12 forms. Smaller quantities of OH-benzoic and vanillic acid were also detected.

Technical Abstract: The objective of this research was to identify and quantify the phenolic acids present in the seeds 3 of three wild-type populations of wild oat and compare these results to the phenolic acid 4 composition and concentration of seeds from two commonly utilized wild oat isolines (M73 and 5 SH430). Phenolic acids have been shown to serve as germination inhibitors, as well as protection 6 for seeds from biotic and abiotic stress factors in other species. The various populations of wild 7 oat were grown under a ‘common garden’ environment to remove maternal variation and the 8 resulting seeds were extracted to remove the readily soluble and chemically bound phenolic acid 9 components. Phenolic acids were identified and quantified using gas chromatography – mass 10 spectrometry. Ferulic and p-coumaric acid comprised 99% of the total phenolic acids present in 11 the seeds, of which 91% were contained in the hulls and 98% were in the chemically bound 12 forms. Smaller quantities of OH-benzoic and vanillic acid were also detected.

Last Modified: 8/24/2016
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