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| Hauptseite > Publikationsdatenbank > Quantification of Polyphosphate in Microalgae by Raman Microscopy and by a Reference Enzymatic Assay > print |
| Hauptseite > Publikationsdatenbank > Quantification of Polyphosphate in Microalgae by Raman Microscopy and by a Reference Enzymatic Assay > print |
| 001 | 842144 | ||
| 005 | 20210129232218.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.analchem.7b02393 |2 doi |
| 024 | 7 | _ | |a 0003-2700 |2 ISSN |
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| 100 | 1 | _ | |a Moudříková, Šárka |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Quantification of Polyphosphate in Microalgae by Raman Microscopy and by a Reference Enzymatic Assay |
| 260 | _ | _ | |a Columbus, Ohio |c 2017 |b American Chemical Society |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Polyphosphates have occurred in living cells early in evolution and microalgae also contain these important polymers in their cells. Progress in research of polyphosphate metabolism of these ecologically as well asbiotechnologically important microorganisms is hampered by the lack of rapid quantification methods. Experiments with the green alga model Chlorella vulgaris presented here compared polyphosphate extraction in water, methanol-chloroform, and phenol-chloroform followed by polyphosphate purification by binding to silica columns or ethanol precipitation. The phenol-chloroform extraction of C. vulgaris followed by ethanol precipitation of polyphosphate was shown to be superior to the other tested method variants. Recovery of added polyphosphate standard to algal biomass showed that the method is accurate. Using this biochemical assay as a validated reference, we show that 2-dimensional, confocal Raman microscopy can serve as a linear proxy for polyphosphate in C. vulgaris with R2 up to 0.956. With this, polyphosphate quantificationcan be shortened by use of Raman microscopy from days to hours and, additionally, information about intracellular distribution of polyphosphate and heterogeneity among individual cells in algal culture can be obtained. This offers new insights into the dynamics and role of these polymers crucial for phosphorus uptake and storage. This analytical capability is of particular practical importance because algae aid phosphorus sequestration from wastewater and the thus enriched biomass may serve as organic fertilizer. Both these applications have a strong potential in a future sustainable, circular bioeconomy. |
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| 700 | 1 | _ | |a Mojzeš, Peter |0 0000-0002-9952-6939 |b 5 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.analchem.7b02393 |g Vol. 89, no. 22, p. 12006 - 12013 |0 PERI:(DE-600)1483443-1 |n 22 |p 12006 - 12013 |t Analytical chemistry |v 89 |y 2017 |x 1520-6882 |
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