Application of Mixture Design Using Diluted Acid for Extraction of Inorganic Components in Fruits of Casearia fasciculata and Determination by ICP OES: Evaluation by PCA and HCA
| Autor: | Cleber Galvão Novaes, Rosivan dos Santos de Assis, Raildo Mota de Jesus, Franciele Castro Novais, Ivana Lago da Silva Romão, Ana Maria Pinto dos Santos, Vinnícius Henrique Cerqueira da Silva |
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| Rok vydání: | 2020 |
| Předmět: |
Chromatography
Casearia biology Chemistry Pulp (paper) Extraction (chemistry) General Chemistry engineering.material biology.organism_classification chemistry.chemical_compound Certified reference materials Nitric acid Inductively coupled plasma atomic emission spectroscopy engineering Inductively coupled plasma Digestion |
| Zdroj: | Journal of the Brazilian Chemical Society. |
| ISSN: | 0103-5053 |
| DOI: | 10.21577/0103-5053.20200001 |
| Popis: | This study is the first to propose the simultaneous quantification of 10 elements in fruits of Casearia fasciculata by inductively coupled plasma optical emission spectrometry (ICP OES). A method of digestion using dilute nitric acid was optimized by mixture design for extraction of elements in the seed, peel, and pulp of Casearia fasciculata cultivated in the Bahia State, Northeastern Brazil. Four different approaches were used to evaluate the digestion procedure ((i) desirability; (ii) multiple response; (iii) residual carbon content and (iv) residual acidity). The accuracy of the method of digestion was applied for the extraction of the studied elements in two certified reference materials (RM-Agro E1001a Brachiaria brizantha and NIST 1515 apple leaves). The limits of quantification of the method (µg g−1) were: Cr, 0.42; Cu, 0.69; Fe, 1.5; Mn, 0.14; Zn, 1.8; Ca, 29.0; K, 3.5; Mg, 1.9; P, 6.4; and S, 17. Two multivariate tools, principal component analysis (PCA) and hierarchical cluster analysis (HCA), were efficient in the formation of groups, corresponding to the fruit parts. Thus, the peel and seed of Casearia fasciculata present potential to be used as mineral supplements in human nutrition. |
| Databáze: | OpenAIRE |
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