Elemental Analysis of Amaranth, Chia, Sesame, Linen, and Quinoa Seeds by ICP-OES: Assessment of Classification by Chemometrics

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• 作者：Daniela Bolaños ; Eduardo J. Marchevsky ; José M. Camiña
• 关键词：Amaranth ; Chia ; Sesame ; Linen ; Quinoa ; Elements ; ICP ; OES ; Classification
• 刊名：Food Analytical Methods
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：9
• 期：2
• 页码：477-484
• 全文大小：792 KB
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• 作者单位：Daniela Bolaños (1)
  Eduardo J. Marchevsky (1)
  José M. Camiña (2) (3)
  
  1. Instituto de Química de San Luis (INQUISAL), Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700, San Luis, Argentina
  2. Instituto de Ciencias de la Tierra y Ambientales de La Pampa (INCITAP), Mendoza 109, 6300, Santa Rosa, La Pampa, Argentina
  3. Facultad de Ciencias Exactas y Naturales (UNLPam), Av. Uruguay 151, 6300, Santa Rosa, La Pampa, Argentina
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Food Science
  Chemistry
  Microbiology
  Analytical Chemistry
  
• 出版者：Springer New York
• ISSN：1936-976X

文摘

In this work, 26 elements (Ag, Al, As, B, Ba, Ca, Cd, Co, Cr, Cs, Cu, Ga, Fe, K, Mg, Mn, Na, P, Pb, Rb, Se, Si, Sr, Ti, V, and Zn) were analyzed by inductively coupled plasma optical emission spectroscopy (ICP-OES) in seed samples: amaranth, chia, sesame, linen, and quinoa. Elemental analysis showed the presence of toxic elements (As, Cd, and Pb), as well as high mineral content (Fe, Na, P, K, and Mg): The concentrations of toxic elements were below the permissible limits by the WHO. Chemometrics was performed by cluster analysis (CA), principal component analysis (PCA), and partial least squares discriminant analysis (PLS-DA). In all cases, a correct classification of each type of seed was obtained. The combination of elemental analysis (major, minor, and toxic elements) and chemometrics was useful to determine nutritional quality in the studied seeds, as well as to classify them according to the botanical origin. For that, this method can be useful for the analysis of raw material as quality control in food factories and government control labs.