Separation of 9,10-anthraquinone derivatives: Evaluation of C18 stationary phases

Bonose, Myriam; Nowik, Witold; Tchapla, Alain; Héron, Sylvie

doi:10.1016/j.chroma.2010.12.032

Cited by 15 publications

(23 citation statements)

References 55 publications

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“…It was clear that the isolated dye powders were complex mixtures of biocolorants. The research reports of high‐performance liquid chromatography (HPLC) separations of anthraquinones reveal that, even with sophisticated methods, there are challenges in separating complex mixtures of anthraquinones . In large‐scale separation, the aggregation of anthraquinones sets great challenges.…”

Section: Methodsmentioning

confidence: 99%

Fungal colorants in applications – focus on Cortinarius species

Räisänen

2018

Coloration Technology

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Secondary metabolites in fungi offer an interesting source of bio-based compounds that could be used as colorants in many applications. From a historical point of view, fungal natural dyes have been used more rarely than plant-based dyes. This paper investigates the potential of fungal colorants, using Cortinarius species as examples. In our research, fruiting bodies of the fungi Cortinarius sanguineus and Cortinarius semisanguineus were used as sources of anthraquinone dyestuffs. From 10 kg of fresh fruiting bodies, 60 g of anthraquinone powder was obtained, 6% of the dry weight content. The most abundant compounds were emodin, dermocybin and their glucosides, which formed over 90% of the total dyestuff amount. Pure emodin and dermocybin, as well as the crude water extract, were used for the dyeing and printing of natural and synthetic fibres. Conventional mordant techniques and high-temperature (HT) disperse dye techniques were applied, and light and washing fastness were tested according to International Organization for Standardization standards. Our experiments show that the yields of dye powders extracted from fungi are reasonable compared with the yields of, for example, madder (Rubia tinctorum). Natural anthraquinones produce strong and bright colours on several types of fibres. In particular, for HT disperse dyed polyester, the light and washing fastness properties were excellent. Anthraquinones are common in nature and there are many fungal species which produce them, so there are a variety of possibilities for growing fungi. The use of large-scale cultures is an interesting perspective for future biocolorant production.

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Section: Methodsmentioning

confidence: 99%

Fungal colorants in applications – focus on Cortinarius species

Räisänen

2018

Coloration Technology

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“…Numerous compounds found in the extract of madder are di-and trihydroxyanthraquinones. [4,6,[14][15][16][17][18][19][20][21] Wouters selected five key anthraquinones, composition of which varied from one species of madder to another. Based on the quantity of alizarin, purpurin, pseudopurpurin, munistein, rubiadin, he characterized three species of madder: R. tinctorium, R. munistta, R. peregrine.…”

Section: Red Dyesmentioning

confidence: 99%

Analysis of Natural Dyes from Historical Objects by High Performance Liquid Chromatography and Electromigration Techniques

Zasada-Kłodzińska

Basiul

Buszewski

et al. 2020

Critical Reviews in Analytical Chemistry

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Based on material published between 1989 and 2018 in this paper high performance liquid chromatography and electromigration techniques used in studies of natural dyes that can be found in historical objects are rewieved. Different aspects of analysis have been discussed: the stationary and mobile phase, the choice of sample solvent, methods of extraction and detection, including sensitivity parameters, such as LOD and/or LOQ. The discussed dyes have been divided into three categories (a) red antraquinone dyes along with dyes extracted from bark and tree juices, (b) yellow flavonoid dyes and saffron and (c) blue indigoid dyes. The main markers (chromophores or auxochromes) typical for each dye source were presented which allows to identify specific species of source plants and animals. The first part of the study involved the analysis of most critical findings when it comes to HPLC or represented an significant analytical approach. The second part of the study is focused on different aspects of electromigration techniques application in analysis of natural dyes with special attention paid on such parameters as the running buffer/mobile phase composition and sample solvent. Detection methods along with LOD and LOQ comparison in HPLC and electromigration techniques were also discussed. Methods of sample preparation, such as hydrolysis and extraction, used in HPLC and electromigration techniques were also briefly discussed.

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“…For that purpose we used the examination of the dissimilarity of a whole set of stationary phases by PCA, using the retention coefficient values of all anthraquinoid standards. 64,65 The correlation matrix obtained in PCA (results not shown) was inspected to find the phases the least correlated with any others. To these selected functionalized phases we added the ODS reference phase Uptisphere NEC (monolayer octadecyl bonded silica, non end-capped, abbreviated NEC) 64 as well as another ODS phase of slightly different selectivity, Hypersil Gold (monolayer octadecyl bonded silica, end-capped, abbreviated Gold) to complete the set submitted for further evaluations.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

“…64,65 The phases with the most pronounced selectivity divergences were selected, and their virtual 2D couplings were investigated using the nearest-neighbor distances calculation and evaluated with some newly proposed descriptors.…”

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confidence: 99%

Assessment of Two-Dimensional Separative Systems Using Nearest-Neighbor Distances Approach. Part 1: Orthogonality Aspects

et al. 2013

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We propose here a new approach to the evaluation of two-dimensional and, more generally, multidimensional separations based on topological methods. We consider the apex plot as a graph, which could further be treated using a topological tool: the measure of distances between the nearest neighbors (NND). Orthogonality can be thus defined as the quality of peak dispersion in normalized separation space, which is characterized by two factors describing the population of distances between nearest neighbors: the lengths (di(o)) of distances and the degree of similarity of all lengths. Orthogonality grows with the increase of both factors. The NND values were used to calculate a number of new descriptors. They inform about the extent of peak distribution, like the arithmetic mean (A̅(o)) of NNDs, as well as about the homogeneity of peak distribution, like the geometric mean (G̅(o)) and the harmonic mean (H̅(o)). Our new, NND-based approach was compared with another recently published method of orthogonality evaluation: the fractal dimensionality (DF). The comparison shows that the geometric mean (G̅(o)) is the descriptor behaving in the most similar way to dimensionality (DF) and the harmonic mean (H̅(o)) displays superior sensitivity to the shortest, critical distances between peaks. The latter descriptor (H̅(o)) can be considered as sufficient to describe the degree of orthogonality based on NND. The method developed is precise, simple, easy to implement, and possible to use for the description of separations in a true or virtual system of any number of dimensions.

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Separation of 9,10-anthraquinone derivatives: Evaluation of C18 stationary phases

Cited by 15 publications

References 55 publications

Fungal colorants in applications – focus on Cortinarius species

Fungal colorants in applications – focus on Cortinarius species

Analysis of Natural Dyes from Historical Objects by High Performance Liquid Chromatography and Electromigration Techniques

Assessment of Two-Dimensional Separative Systems Using Nearest-Neighbor Distances Approach. Part 1: Orthogonality Aspects

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