Nurmi Tanja, Nyström Laura, Edelmann Minnamari, Lampi Anna-Maija, Piironen Vieno
Department of Applied Chemistry and Microbiology, University of Helsinki, Latokartanonkaari 11, P.O. Box 27, FIN-00014 University of Helsinki, Finland.
J Agric Food Chem. 2008 Nov 12;56(21):9710-5. doi: 10.1021/jf8010678. Epub 2008 Oct 15.
The phytosterol contents of 130 winter wheat, 20 spring wheat, 10 durum wheat, 5 spelt, 5 einkorn, and 5 emmer wheat genotypes, grown at the same location in the same year, were analyzed with gas chromatography. Considerable variation was observed in total phytosterol contents in all wheat types. The total sterol contents ranged from 670 to 959 microg/g of dm in winter wheat and from 797 to 949 microg/g of dm in spring wheat. The highest sterol contents were found in spelt, durum wheat, and einkorn wheat. The proportions of the main phytosterols also varied substantially among the different genotypes. The most abundant phytosterol in all wheat genotypes was sitosterol (40-61% of total sterols), whereas the highest variation was seen in total stanols (7-31% of total sterols). The comprehensive data set produced in this study constitutes a valuable basis for plant breeding and selection of phytosterol-rich genotypes.
采用气相色谱法分析了同年在同一地点种植的130个冬小麦、20个春小麦、10个硬粒小麦、5个斯佩尔特小麦、5个单粒小麦和5个二粒小麦基因型的植物甾醇含量。在所有小麦类型中，总植物甾醇含量均存在显著差异。冬小麦的总甾醇含量范围为670至959微克/克干物质，春小麦为797至949微克/克干物质。斯佩尔特小麦、硬粒小麦和单粒小麦中的甾醇含量最高。不同基因型之间主要植物甾醇的比例也有很大差异。所有小麦基因型中最丰富的植物甾醇是谷甾醇（占总甾醇的40 - 61%），而总甾烷醇的变化最大（占总甾醇的7 - 31%）。本研究产生的综合数据集为植物育种和富含植物甾醇基因型的选择提供了有价值的基础。
