title: Classification the geographical origin of corn distillers dried grains with solubles by near infrared reflectance spectroscopy combined with chemometrics: A feasibility study.
abstract: In this study, 137 corn distillers dried grains with solubles (DDGS) samples from a range of different geographical origins (Jilin Province of China, Heilongjiang Province of China, USA and Europe) were collected and analysed. Different near infrared spectrometers combined with different chemometric packages were used in two independent laboratories to investigate the feasibility of classifying geographical origin of DDGS. Base on the same dataset, one laboratory developed a partial least square discriminant analysis model and another laboratory developed an orthogonal partial least square discriminant analysis model. Results showed that both models could perfectly classify DDGS samples from different geographical origins. These promising results encourage the development of larger scale efforts to produce datasets which can be used to differentiate the geographical origin of DDGS and such efforts are required to provide higher level food security measures on a global scale.
authors.affiliation: College of Engineering, China Agricultural University, Beijing 100083, China.
authors.forename: Xingfan
authors.initials: X
authors.lastname: Zhou
authors.affiliation: College of Engineering, China Agricultural University, Beijing 100083, China.
authors.forename: Zengling
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Institute for Global Food Security, Queen's University Belfast, Northern Ireland, United Kingdom.
authors.forename: Simon A
authors.initials: SA
authors.lastname: Haughey
authors.affiliation: Institute for Global Food Security, Queen's University Belfast, Northern Ireland, United Kingdom.
authors.forename: Pamela
authors.initials: P
authors.lastname: Galvin-King
authors.affiliation: College of Engineering, China Agricultural University, Beijing 100083, China. Electronic address: hanlj@cau.edu.cn.
authors.forename: Lujia
authors.initials: L
authors.lastname: Han
authors.affiliation: Institute for Global Food Security, Queen's University Belfast, Northern Ireland, United Kingdom. Electronic address: chris.elliott@qub.ac.uk.
authors.forename: Christopher T
authors.initials: CT
authors.lastname: Elliott
mesh_terms: D002681:China; D005060:Europe; D005240:Feasibility Studies; D005525:Food-Processing Industry / Q000592:standards*; D016018:Least-Squares Analysis; D025341:Principal Component Analysis; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D014481:United States; D003313:Zea mays / Q000737:chemistry*
keywords: Chemometrics; Classification; Corn distillers dried grains with solubles; Near infrared reflectance spectroscopy