大麦与小麦种子的红外光谱分析  

Infrared Spectroscopy Analysis of Barley and Wheat Seeds

作　　者：刘杰 LIU Jie(Wuhu University,Wuhu 241000,China)

机构地区：[1]芜湖学院,安徽芜湖241000

出　　处：《大麦与谷类科学》2024年第4期8-12,28,共6页Barley and Cereal Sciences

摘　　要：利用红外光谱法研究大麦与小麦种子的主要化学成分,对种子生产和食品安全具有重要意义。傅里叶变换红外光谱显示,大麦种子与小麦种子的原始光谱相似,无明显差异。在1800~800 cm^(-1)范围的二阶导数红外光谱中,吸收峰强度和形状显示出差异,表明大麦与小麦种子在脂质、蛋白质、糖类物质中存在差异。二维相关红外光谱显示,大麦种子与小麦种子在1160~800 cm-1及1600~1160 cm^(-1)范围内自动峰的位置和强度显示差异,进一步表明大麦与小麦种子的成分存在差异。因此,红外光谱可以有效对大麦种子与小麦种子的主要成分进行分析。It is of great significance for seed production and food safety to study the main chemical components of barley and wheat seeds by infrared spectroscopy.Fourier transform infrared spectroscopy(FT-IR)showed that the original spectra of barley seeds were similar to those of wheat seeds,and the absorption peak intensity and shape of the second derivative spectra(SD-IR)were different in the range of 1800~800 cm^(-1),indicating that barley and wheat seeds were different in lipid,protein and carbohydrate substances.Two-dimensional correlation infrared spectroscopy(2D-IR)showed that the position and intensity of auto-peaks in the range of 1160~800 cm-1 and 1600~1160 cm^(-1)were different between barley seeds and wheat seeds,which further indicated that there were differences in the composition of barley and wheat seeds.The results show that infrared spectroscopy can effectively study the main components of barley and wheat seeds.

关 键 词：大麦种子 小麦种子 傅里叶变换红外光谱 二阶导数红外光谱 二维相关红外光谱 

分 类 号：S512.1[农业科学—作物学] S512.3