Standardization of inulin extracted from Dahlia single tubers and some physicochemical properties of inulin

́ina, N. A. Anan; Андреева, О. А.; Mycots, L. P.; Oganesyan, É. T.

doi:10.1007/s11094-009-0261-8

Cited by 14 publications

(11 citation statements)

References 2 publications

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“…The fructose content was 94 mol%, the remainder being glucose, giving a fructose to glucose ratio of 15-1. The fructose content is in close agreement with the literature for Dahlia tubers (94.1-96.7 mol%) [48]. Thus, the inulin sample contains mainly of oligomers with d-fructoside units, with each oligomer chain on average capped with a d-glucose molecule, in line with literature data [31].…”

Section: Inulin Characterizationsupporting

confidence: 90%

Experimental and modelling studies on the uncatalysed thermal conversion of inulin to 5-hydroxymethylfurfural and levulinic acid

Fachri

Abdilla

Rasrendra

et al. 2015

Sustain Chem Process

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Background: 5-Hydroxymethylfurfural (HMF), an important biobased platform chemical, is accessible by the acid catalysed conversion of biopolymers containing hexoses (cellulose, starch, inulin) and monomeric sugars derived thereof. We here report an experimental study on the uncatalysed, thermal conversion of inulin to HMF in aqueous solutions in a batch set-up. Results:The reactions were conducted in a temperature range of 153-187°C, an inulin loading between 0.03 and 0.12 g/mL and batch times between 18 and 74 min using a central composite experimental design. The highest experimental HMF yield in the process window was 35 wt% (45 mol%), which is 45% of the theoretical maximum (78 wt%). The HMF yields were modeled using a statistical approach and good agreement between experiment data and model was obtained. The possible autocatalytic role of formic acid (FA) and levulinic acid, two main byproducts, was probed by performing reactions in the presence of these acids and it was shown that particularly FA acts as a catalyst. Conclusions:Inulin is an interesting feed for the synthesis of HMF in water. A catalyst is not required, though autocatalytic effects of FA play a major role and also affect reaction rates and product yields. Graphical abstract:Chicory 5-hydroxymethylfurfural No catalystInulin

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Section: Inulin Characterizationsupporting

confidence: 90%

Experimental and modelling studies on the uncatalysed thermal conversion of inulin to 5-hydroxymethylfurfural and levulinic acid

Fachri

Abdilla

Rasrendra

et al. 2015

Sustain Chem Process

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“…Thereby, the standardization of inulincontaining medicinal plant raw materials (MPRM) seems to be very relevant and necessary. 3,4 functions. This class of natural polysaccharides (PSh) is produced by more than 15% of plant species belonging to different families.…”

Section: Introductionmentioning

confidence: 99%

“…There is evidence of the presence of inulin probiotic and immunomodulating properties. 3,5 Procedures for inulin determination Nowadays, there are many analytical methods for determining inulin, both as an individual pharmaceutical substance, and as part of medicinal plant materials and complex preparations. These methods include high performance liquid chromatography, high-performance anion exchange chromatography with pulsed amperometric detection, spectrophotometric and photocolorimetric determination methods.…”

Section: Introductionmentioning

confidence: 99%

Pharmacopoeial Analysis of Inulin-Containing Medicinal Plant Raw Materials and Drugs

Di¹,

Ia²,

Og³

et al. 2020

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Different types of search tools such as Google scholar, Google, scientific literature, normative documentation of Russian Federation (State Pharmacopoeia of Russian Federation IV edition and others) electronic databases such as e-Library, Scopus, Web of Science, Pubmed had been searched and data obtained. RESULTS AND DISCUSSION Characterization of polyfructans Fructooligosaccharides (FOS) (oligofructose)-a mixture of oligomers, which contain from 1 to 7 moieties of D-fructose, and as a rule, terminal D-glucose. FOS is obtained in two ways: by splitting inulin and by enzymatic transfer of fructose to sucrose (transfructosylation). Oligofructose, like inulin, belongs to water-soluble dietary fiber and is prebiotic, and a mixture of these compounds, which is also often called fructooligosaccharides, has more effective prebiotic properties. Polyfructans (fructosans, Pfrus) are carbohydrate polymers formed by a sucrose molecule, an extended chain of fructose moieties. In nature, Pfrus are found in bacteria, fungi, and plants in which they perform various ABSTRACT Background: Today, there are some unresolved issues and discussions concerning inulin quantitative determination in medicinal plant raw materials (MPRM). MPRM containing polyfructans or fructosans (inulin and others) are rather complex multicomponent matrixes with many interacting compounds. The article discusses the prospects for further standardization of inulin-containing pharmacopoeial MPRM that include, in addition to polysaccharides (inulin), other biologically active compounds with pharmacological activity. Materials and Methods: Different types of search tools such as Google scholar, Google, scientific literature, normative documentation of Russian Federation (State Pharmacopoeia of Russian Federation IV edition and others) electronic databases such as e-Library, Scopus, Web of Science, Pubmed had been searched and data obtained. Results: The pharmacopoeial spectrophotometric procedures of inulin determination in the Russian Federation are approved in a version that does not fully satisfy modern standardization criteria. Regulatory changes required in the near future. Conclusion: Undoubtedly, to determine inulin quantitatively, it is necessary to modify the existing spectrophotometric procedures and introduce an additional alternative, more specific HPLC-RID (or similar) ones.

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“…[17] Since in the tubers of dahlia there are no caramel-producing fructans and no highly active enzymes that promote resinification of polysaccharides, isolation and purification of inulin from this raw material do not require time-consuming and costly techniques. [20] Thus, dahlia tubers are an interesting and promising source of raw material from both points of viewtechnological and economic.…”

Section: Introductionmentioning

confidence: 99%

Chain length distribution of inulin from dahlia tubers as influenced by the extraction method

Kriukova

Jakubiak-Augustyn

Ilyinska

et al. 2017

International Journal of Food Properties

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A variety of fructans occurs in plants, having various configuration and chain lengths from 3 up to a few hundred fructose units. The structurally simplest fructan is a linear inulin, where the fructose units are linked by β-2,1 bonds, present mostly in Asteraceae and Cichorioideae (e.g. dahlia). The pharmacological effects of fructans depend mainly on the degree of polymerization (DP). Hence, a controlled DP distribution profile is essential for the expected spectrum of pharmacological activities. The aim of this study was to purify fructans from dahlia (Dahlia x hortensis Guill. cv.'Ken's Flame') tubers with different inulin chain lengths profile. We developed the selective preparative approach, followed by qualitative and quantitative analyses by pulsed amperometry-high performance anion-exchange chromatography. The fructans were obtained by the extraction of dahlia tubers with water, concentrated under vacuum, subsequent precipitation of carbohydrate fraction by ethanol, followed by purification using four different combinations of absorbents such as Dowex ® ion-exchange resin, aluminium oxide, calcium carbonate, and activated carbon. The highest content of short-chain inulin (38%) was in the crude fraction and after the separation on Al 2 O 3 and CaCO 3 . All methods selectively enriched inulin in the middle-length chains. The highest concentration of high-quality longchain inulin (16%) was obtained by consecutive washing through CaCO 3 , Al 2 O 3 , Dowex, and charcoal. This complex was also the most balanced in terms of the proportion among short-, medium-, and long-chain inulin (33%, 43%, and 16%, respectively). ARTICLE HISTORY

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Standardization of inulin extracted from Dahlia single tubers and some physicochemical properties of inulin

Cited by 14 publications

References 2 publications

Experimental and modelling studies on the uncatalysed thermal conversion of inulin to 5-hydroxymethylfurfural and levulinic acid

Experimental and modelling studies on the uncatalysed thermal conversion of inulin to 5-hydroxymethylfurfural and levulinic acid

Pharmacopoeial Analysis of Inulin-Containing Medicinal Plant Raw Materials and Drugs

Chain length distribution of inulin from dahlia tubers as influenced by the extraction method

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