dc.contributor.author
Krüger, David
dc.contributor.author
Weng, Alexander
dc.contributor.author
Baecker, Daniel
dc.date.accessioned
2024-08-29T10:44:01Z
dc.date.available
2024-08-29T10:44:01Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/44730
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-44441
dc.description.abstract
The Chinese yam (Dioscorea polystachya, 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.
en
dc.format.extent
13 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
atomic absorption spectrometry
en
dc.subject
Dioscoreaceae
en
dc.subject
Dioscorea polystachya
en
dc.subject
graphite furnace
en
dc.subject
leaf extract
en
dc.subject.ddc
600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::615 Pharmakologie, Therapeutik
dc.title
Investigating the Discoloration of Leaves of Dioscorea polystachya Using Developed Atomic Absorption Spectrometry Methods for Manganese and Molybdenum
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
3975
dcterms.bibliographicCitation.doi
10.3390/molecules29163975
dcterms.bibliographicCitation.journaltitle
Molecules
dcterms.bibliographicCitation.number
16
dcterms.bibliographicCitation.originalpublishername
MDPI
dcterms.bibliographicCitation.volume
29
dcterms.bibliographicCitation.url
https://doi.org/10.3390/molecules29163975
refubium.affiliation
Biologie, Chemie, Pharmazie
refubium.affiliation.other
Institut für Pharmazie
refubium.note.author
Die Publikation wurde aus Open Access Publikationsgeldern der Freien Universität Berlin gefördert.
de
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
1420-3049