摘要
分别测定7种苦荞籽粒的基本组分水分和灰分,营养组分氨基酸、脂肪酸、淀粉、蛋白质以及功能组分黄酮和多酚的含量。结果表明,苦荞麦总淀粉含量在60.23%~65.44%,且品种间差异不大;但慢消化淀粉和抗性淀粉品种间差异较大。蛋白的含量在11.80%~15.83%,不同品种间的蛋白含量差异不显著;总氨基酸含量与蛋白含量的趋势基本保持一致。脂肪含量在2.05%~2.85%,且不饱和脂肪酸含量均显著高于饱和脂肪酸含量。苦荞麦品种间多酚和黄酮含量的差异显著（P〈0.05）,川荞2号含有显著较高的多酚含量,可达131.92 mg/g;晋荞6号含有显著较高的总黄酮含量,可达147.46 mg/g;且苦荞麦品种间芦丁含量差别较大,可达2.82倍。因此,因地域差异导致苦荞麦的营养及功能性成分的种类和含量差别不显著（P〉0.05）。
The components of nutritional and functional ingredients in 7kinds of tartary buckwheat were detected and comparable analysis in this paper. The mean contents of basic components（ moisture and ash）,nutritional compositions（ amino acid,fatty acid,starch and protein） and functional active ingredient（ flavonoids,polyphenols and rutin） in 7kinds of tartary buckwheat were determined. The starch contents varied from 60. 23% to 65. 44%,and there were no significant difference between different varieties,while the differences of slowly digestible and resistant starch（ RS） starch（ SDS） were large. The protein contents varied from 11. 80% and 15. 83% and no difference were found among different varieties. The contents of total amino acid shared the same trend with protein contents but the differences were bigger than that of protein content.The fat contents varied from 2. 05% to 2. 85%,and the contents of unsaturated fatty acid were found to be significantly higher than that of saturated fatty acid in all the varieties. The polyphenols and flavonoid contents were significantly different among different varieties（ P 〈0. 05）. The Chuanqiao 2 had the highest polyphenols content with a value of 131. 92 mg / g.And the JInqiao 6 had the highest flavonoid content with a value of 147. 46 mg / g. Furthermore,the differences of rutin contents could be 2. 82 times between different varieties. Moreover,no significant difference was found among all the tartary buckwheats when the planting regions were concerned（ P 〉0. 05）.
出处
《食品与机械》
CSCD
北大核心
2016年第7期5-9,35,共6页
Food and Machinery
基金
粮食公益性行业科研专项(编号:201313006-5)
关键词
苦荞麦
营养成分
黄酮
多酚
tartary buckwheats
nutrition
flavonoids
polyphenols
作者简介
王世霞，女，天津科技大学在读硕士研究生。
通讯作者：綦文涛（1977-）。男，国家粮食局科学研究院副研究员，博士。E—mail：qwt@chinagrain．org
