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Investigating the Discoloration of Leaves of Using Developed Atomic Absorption Spectrometry Methods for Manganese and Molybdenum. | LitMetric

Investigating the Discoloration of Leaves of Using Developed Atomic Absorption Spectrometry Methods for Manganese and Molybdenum.

Molecules

Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Straße 2+4, 14195 Berlin, Germany.

Published: August 2024

AI Article Synopsis

  • The Chinese yam (DP) has significant nutritional and pharmaceutical potential, making its cultivation important.
  • Previous studies excluded magnesium as a cause for leaf discoloration, prompting further investigation into manganese and molybdenum levels.
  • Analytical techniques using atomic absorption spectrometry revealed that discolored leaves contained higher manganese and lower molybdenum levels, providing insight into the reasons for the discoloration.

Article Abstract

The Chinese yam (, DP) is promising for the food and pharmaceutical industries due to its nutritional value and pharmaceutical potential. Its proper cultivation is therefore of interest. An insufficient supply of minerals necessary for plant growth can be manifested by discoloration of the leaves. In our earlier study, magnesium deficiency was excluded as a cause. As a follow-up, this work focused on manganese and molybdenum. To quantify both minerals in leaf extracts of DP, analytical methods based on atomic absorption spectrometry (AAS) using the graphite furnace sub-technique were devised. The development revealed that the quantification of manganese works best without using any of the investigated modifiers. The optimized pyrolysis and atomization temperatures were 1300 °C and 1800 °C, respectively. For the analysis of molybdenum, calcium proved to be advantageous as a modifier. The optimum temperatures were 1900 °C and 2800 °C, respectively. Both methods showed satisfactory linearity for analysis. Thus, they were applied to quantify extracts from normal and discolored leaves of DP concerning the two minerals. It was found that discolored leaves had higher manganese levels and a lower molybdenum content. With these results, a potential explanation for the discoloration could be found.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11357052PMC
http://dx.doi.org/10.3390/molecules29163975DOI Listing

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