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. 2022 Nov 21;27(22):8105.
doi: 10.3390/molecules27228105.

Fractionation and Extraction Optimization of Potentially Valuable Compounds and Their Profiling in Six Varieties of Two Nicotiana Species

Csaba Laszlo  1 , Kacper Kaminski  1 , Haifeng Guan  2 , Maria Fatarova  1 , Jianbing Wei  2 , Alexandre Bergounioux  1 , Walter K Schlage  3 , Sandra Schorderet-Weber  1 , Philippe A Guy  1 , Nikolai V Ivanov  1 , Kai Lamottke  4 , Julia Hoeng  1
Affiliations

Fractionation and Extraction Optimization of Potentially Valuable Compounds and Their Profiling in Six Varieties of Two Nicotiana Species

Csaba Laszlo et al. Molecules. .

Abstract

There is an increasingly urgent call to shift industrial processes from fossil fuel feedstock to sustainable bio-based resources. This change becomes of high importance considering new budget requirements for a carbon-neutral economy. Such a transformation can be driven by traditionally used plants that are able to produce large amounts of valuable biologically relevant secondary metabolites. Tobacco plants can play a leading role in providing value-added products in remote areas of the world. In this study, we propose a non-exhaustive list of compounds with potential economic interest that can be sourced from the tobacco plant. In order to optimize extraction methodologies, we first analyzed their physico-chemical properties using rapid solubility tests and high-resolution microfractionation techniques. Next, to identify an optimal extraction for a selected list of compounds, we compared 13 different extraction method-solvent combinations. We proceeded with profiling some of these compounds in a total of six varieties from Nicotiana tabacum and Nicotiana rustica species, identifying the optimal variety for each. The estimated expected yields for each of these compounds demonstrate that tobacco plants can be a superior source of valuable compounds with diverse applications beyond nicotine. Among the most interesting results, we found high variability of anatabine content between species and varieties, ranging from 287 to 1699 µg/g. In addition, we found that CGA (1305 µg/g) and rutin (7910 µg/g) content are orders of magnitude lower in the Burley variety as compared to all others.

Keywords: Nicotiana rustica; Nicotiana tabacum; extraction; microfractionation; purification of plant compounds; valuable compound profiling.

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Conflict of interest statement

C.L., K.K., M.F., A.B., W.S., P.A.G. and N.V.I. are employees of Philip Morris International. J.H. was an employee of Philip Morris International at the time the experiments were performed. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.

Figures

Figure 1
Figure 1
Tobacco biosynthetic pathways leading to primary and secondary metabolites. The green text shows the approximate dry weight composition of the most important compounds [5]. Desired classes of commercially viable compounds are indicated in black rectangles. This figure was assembled from several different scientific sources [5,6,7,8].
See this image and copyright information in PMC

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