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Atomic absorption spectroscopic investigation of the mineral fraction of pectins obtained from pumpkin and sugar beet

Atomabsorptionsspektroskopische Untersuchung des Mineralanteils von Pektinen aus Kürbissen und Zuckerrüben

  • Anorganische Und Physikalische Chemie
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Summary

Data on the mineral composition of plant cell wall carboxypolysaccharides (pectins), obtained from non-traditional vegetable sources (pumpkin and sugar beet) using a biotechnological process of enzymatic extraction (biopectin) and the traditional method of acid treatment, are presented. The results have been obtained by flame (FAAS) or graphite furnace atomic absorption spectroscopy (GFAAS) and include trace analyses of the heavy metal content. It is shown that biopectin has an unusually high total mineral content, due mainly to markedly increased contents of Ca and Mg. The content of a series of alkaline, alkaline earth, and heavy metals in the pectins is compared considering the effect of the extraction method.

Zusammenfassung

Die Zusammensetzung des mineralischen Anteils von Carboxypolysacchariden (Pektinen), die mittels eines biotechnologischen Prozesses (enzymatische Extraktion; “Biopektin”) bzw. der üblichen Methode (Behandlung mit Säure) aus den Zellwänden von Pflanzen (Kürbis, Zuckerrübe) gewonnen wurden, wird diskutiert. Die Ergebnisse wurden mittels Flammenatomabsorptionsspektroskopie (FAAS) oder im Graphitofen (GFAAS) bestimmt und beinhalten Spurenanalysen des Schwermetallgehalts. Es wird gezeigt, daß Biopektin einen unüblich hohen Mineralanteil aufweist, der hauptsächlich auf den hohen Gehalt an Ca und Mg zurückzuführen ist. Der Gehalt an einer Reihe von Alkali-, Erdalkali- und Schwermetallen wird verglichen und zur Isolationsmethode der Pektine in Beziehung gesetzt.

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Authors and Affiliations

  1. Laboratory of Structural Research Methods, Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 410015, Saratov, Russia

    A. A. Kamnev

  2. Laboratorio de Quimica Ambiental, Facultad Experimental de Ciencias, Universidad del Zulia, 4011, Maracaibo, Venezuela

    M. Colina

  3. Laboratoire des Mecanismes Reactionnels, Department de Chimie, Ecole Polytechnique, CNRS URA 1307, F-91128, Palaiseau Cedex, France

    M-F Renou-Gonnord & I. Frolov

  4. Laboratory of Food Polysaccharides, Lower Volga Research Institute of Animal Husbandry and Biotechnology, Russian Academy of Agricultural Sciences, 410020, Saratov, Russia

    N. M. Ptitchkina

  5. Laboratory of Biochemistry, Institute of Biochemistry and Physiology of Plants and Micro-organisms, Russian Academy of Sciences, 410015, Saratov, Russia

    V. V. Ignatov

Authors
  1. A. A. Kamnev
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  2. M. Colina
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  3. M-F Renou-Gonnord
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  4. I. Frolov
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  5. N. M. Ptitchkina
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  6. V. V. Ignatov
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Kamnev, A.A., Colina, M., Renou-Gonnord, MF. et al. Atomic absorption spectroscopic investigation of the mineral fraction of pectins obtained from pumpkin and sugar beet. Monatsh Chem 128, 211–216 (1997). https://doi.org/10.1007/BF00807886

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  • DOI: https://doi.org/10.1007/BF00807886

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