Abstract
ABSTRACTThe potential approach of classifying foxtail millet according to geographical origin was investigated using mineral element and chemical composition analysis of samples from various provinces in China. Total 16 mineral elements and five chemical compositions of foxtail millets were analyzed. There were significant differences in 12 elements of millets from different regions. Notable differences were also observed for chemical composition, with Hebei samples showing higher protein content, Henan samples showing higher fat and ash contents and Shandong samples showed higher dietary fiber and amylose contents. Based on the combination of both methods, discriminant analysis provided optimal discrimination among the various geographical origins with a 95.2% classification rate. Our study provides an effective tool to trace the foxtail millet geographic origin through a combination of multi-element and chemical composition analysis.
Highlights
Foxtail millet (Setaria italica) is one of the most important food and fodder crops in parts of China, India and many African countries.[1,2,3] It is grown in Australia and South America.[4]
Millets contain a variety of vitamins, minerals and phytochemicals,[6,7] so it is considered as potential functional food ingredient to promote better health
A total of 21 foxtail millet samples were collected from the 2015 harvests of three major producing regions in China (Hebei, Henan and Shandong provinces). 7 millet samples were collected from Handan city Hebei province (38°N, 114°E) in 2015; 7 millet samples were collected from zhengzhou city Henan city (34°N, 113°E) in 2015; 7 millet samples were collected from Jinan city Shandong provinces(36°N, 117°E) in 2015
Summary
Foxtail millet (Setaria italica) is one of the most important food and fodder crops in parts of China, India and many African countries.[1,2,3] It is grown in Australia and South America.[4] Foxtail millet has gained prominence because of its nutritional significance. It is rich in protein, starch and bran oil,[5] and it is a staple food in China. It is important to establish methods that facilitate recognition of the geographical origin of millet to protect both consumers and producers
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