title: Application of near-infrared reflectance spectroscopy to the evaluation of rutin and D-chiro-Inositol contents in tartary buckwheat.
abstract: Tartary buckwheat [Fagopyrum tataricum (L.) Gaench] is rich in rutin and D- chiro-inositol (DCI), which have beneficial effects in the treatment of hemorrhagic diseases and insulin-resistant diseases, respectively. The current methods of extraction and detection of rutin and DCI are complex and time-consuming; a simple way of analyzing these compounds in the native matrix would be desirable. In this work, near-infrared reflectance spectroscopy (NIRS) was applied to determine the contents of rutin and DCI in tartary buckwheat. The spectral data were compared with those determined from high-performance liquid chromatography (HPLC) methods. Models for predicting rutin and DCI contents in buckwheat were developed using a partial least-squares algorithm. Cross-validation procedures indicated good correlations between HPLC data and NIRS predictions (R2 = 0.76 for rutin and R2 = 0.86 for DCI). The rutin content ranged from 0.998 to 1.75%, while the DCI content covered 0.179-0.200%. The results showed that NIRS, a well-established and widely applied technique, could be applied to determine rutin and DCI in tartary buckwheat rapidly and nondestructively.
authors.affiliation: Institute of Crop Science, Chinese Academy of Agricultural Sciences, No. 80 South Xueyuan Road, Haidian District, Beijing 100081, People's Republic of China.
authors.forename: Nan
authors.initials: N
authors.lastname: Yang
authors.forename: Guixing
authors.initials: G
authors.lastname: Ren
mesh_terms: D002851:Chromatography, High Pressure Liquid; D019612:Fagopyrum / Q000737:chemistry*; D007294:Inositol / Q000032:analysis*; D012431:Rutin / Q000032:analysis*; D012639:Seeds / Q000737:chemistry; D019265:Spectroscopy, Near-Infrared
chemical_list: D007294:Inositol; D012431:Rutin