Antioxidant activity and phenolic content of oat as affected by cultivar and location
Antioxidant activity and phenolic content of oat as affected by cultivar and location
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DOI：
10.2135/cropsci2001.1676
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发表时间：
2001-11-01
期刊：
影响因子：
2.3
通讯作者：
Peterson, DM
中科院分区：
文献类型：
--
作者：
Emmons, CL;Peterson, DM
燕麦中的酚类化合物可能由于其抗氧化剂或其他特性而对人类产生促进健康的作用。本研究旨在探讨燕麦品种和产地对燕麦醇溶提取物中酚类物质含量和抗氧化活性的影响。1998年，对威斯康星州7个地点种植的3个品种的抗氧化剂活性(AOA)和8种含AOA的酚类化合物的浓度进行了测定。除对香豆酸和阿魏酸外，所有酚类化合物的含量和总游离酚含量(FPC)在品种间存在显著差异。地理位置显著影响5种酚类物质和总FPC的浓度，但对AOA无显著影响。不同品种间存在显著的X位互作效应。通过对1999年和2000年的格陵兰进行分析，证实了鲟鱼湾地区出人意料的高浓度的燕麦根虫。燕麦的AOA和酚类物质含量作为数量性状在品种开发计划中应该是有可能提高的，但显著的位置效应可能会阻碍快速的进展。
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.