| determination of the geographic origin of onions between three main production areas in japan and other countries by mineral composition. | onions (allium cepa l.) are produced in many countries and are one of the most popular vegetables in the world, thus leading to an enormous amount of international trade. it is currently important that a scientific technique be developed for determining geographic origin as a means to detect fraudulent labeling. we have therefore developed a technique based on mineral analysis and linear discriminant analysis (lda). the onion samples used in this study were from hokkaido, hyogo, and saga, which ... | 2007 | 17227064 |
| estimation of discrimination errors in the technique for determining the geographic origin of onions by mineral composition: interlaboratory study. | techniques to determine the geographic origin of foods have been developed for various agricultural and fishery products, and they have used various principles. some of these techniques are already in use for checking the authenticity of the labeling. many are based on multielement analysis and chemometrics. we have developed such a technique to determine the geographic origin of onions (allium cepa l.). this technique, which determines whether an onion is from outside japan, is designed for oni ... | 2008 | 18476360 |