HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (14) Citing Articles via Google Scholar Google Scholar Articles by Emmons, C. L. Articles by Peterson, D. M. Search for Related Content PubMed Articles by Emmons, C. L. Articles by Peterson, D. M. Agricola Articles by Emmons, C. L. Articles by Peterson, D. M. Related Collections Other Grain Crops Plant and Environment Interactions

CROP BREEDING, GENETICS & CYTOLOGY

Antioxidant Activity and Phenolic Content of Oat as Affected by Cultivar and Location

^a Division of Biology, Alfred University, Alfred, NY 14802
^b USDA-ARS Cereal Crops Research Unit, 501 Walnut Street, Madison, WI 53705 and Department of Agronomy, University of Wisconsin-Madison

* Corresponding author (dmpeter4{at}facstaff.wisc.edu)

Phenolic compounds in oat (Avena sativa L.) may have health-promoting effects on humans due to their antioxidant or other properties. The objective of this study was to determine the effects of cultivar and location on phenolic contents and antioxidant activities of alcohol-soluble extracts from oat groats. Antioxidant activities (AOA) and concentrations of eight phenolic compounds having AOA were measured in three cultivars grown at seven locations in Wisconsin during 1998. There were significant differences among cultivars for AOA, concentrations of all of the phenolic compounds measured except p-coumaric and ferulic acids, and for total free phenolic contents (FPC). Location significantly affected the concentrations of five of the phenolics and total FPC, but did not affect AOA. There were significant cultivar x location interactions for the concentrations of avenanthramides and for total FPC. The unexpectedly high concentrations of avenanthramides from the Sturgeon Bay location were confirmed by analysis of groats from 1999 and 2000. It should be possible to improve the AOA and phenolic concentrations of oat as quantitative traits in a cultivar development program, but significant location effects may attenuate rapid progress.

Abbreviations: AOA, antioxidant activity • ARL, Arlington • ASH, Ashland • AVA [or B, or C], avenanthramide A [or B, or C] • BHT, butylated hydroxytoluene • CA, caffeic acid • CHI, Chilton • FA, ferulic acid • FD, ferulate derivative • FPC, free phenolic contents • GA, gallic acid • HPLC, high-performance liquid chromatography • MAD, Madison • MAR, Marshfield • PCA, p-coumaric acid • SBY, Sturgeon Bay • SPO, Spooner • VAN, vanillin

This article has been cited by other articles:

				C.-Y. O. Chen, P. E. Milbury, F. W. Collins, and J. B. Blumberg Avenanthramides Are Bioavailable and Have Antioxidant Activity in Humans after Acute Consumption of an Enriched Mixture from Oats J. Nutr., June 1, 2007; 137(6): 1375 - 1382. [Abstract] [Full Text] [PDF]

				D. M. Peterson, D. M. Wesenberg, D. E. Burrup, and C. A. Erickson Relationships among Agronomic Traits and Grain Composition in Oat Genotypes Grown in Different Environments Crop Sci., May 27, 2005; 45(4): 1249 - 1255. [Abstract] [Full Text] [PDF]