Evidence map›Paper›PMID 34575404›Full record

ArticlePharmaceutics2021

Exploring Taxifolin Polymorphs: Insights on Hydrate and Anhydrous Forms.

Fernanda Cristina Stenger Moura, Nicola Pinna, Riccardo Vivani, Gisele Elias Nunes, Aurélie Schoubben, Tania Mari Bellé Bresolin, Ivan Helmuth Bechold, Maurizio Ricci

Abstract read
In one paragraph

Article in Pharmaceutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Solubility Enhancement of Dihydroquercetin via "Green" Phase Modification.International journal of molecular sciences · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Fernanda Cristina Stenger MouraPrograma de Pós Graduação em Ciências-PPGCF, Universidade do Vale do Itajaí, Itajaí 88302-202, SC, Brazil.
Nicola PinnaDepartment of Pharmaceutical Sciences, University of Perugia, via Fabretti 48, 06123 Perugia, Italy.
Riccardo VivaniDepartment of Pharmaceutical Sciences, University of Perugia, via Fabretti 48, 06123 Perugia, Italy.ORCID 0000-0001-9666-2997
Gisele Elias NunesDepartamento de Física, Universidade Federal de Santa Catarina-UFSC, Florianópolis 88040-900, SC, Brazil.
Aurélie SchoubbenDepartment of Pharmaceutical Sciences, University of Perugia, via Fabretti 48, 06123 Perugia, Italy.ORCID 0000-0002-2567-519X
Tania Mari Bellé BresolinPrograma de Pós Graduação em Ciências-PPGCF, Universidade do Vale do Itajaí, Itajaí 88302-202, SC, Brazil.
Ivan Helmuth BecholdDepartamento de Física, Universidade Federal de Santa Catarina-UFSC, Florianópolis 88040-900, SC, Brazil.ORCID 0000-0001-6393-7245
Maurizio RicciDepartment of Pharmaceutical Sciences, University of Perugia, via Fabretti 48, 06123 Perugia, Italy.ORCID 0000-0002-3373-9771

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88887.116106/2016-00Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88887.122964/2016- 00Ministero dell'Università e della Ricerca Dipartimenti di Eccellenza 2018-2022
6 · The paper itself

Abstract

Taxifolin, also known as dihydroquercetin, possesses several interesting biological properties. The purpose of the study was to identify polymorphs of taxifolin prepared using crystallization in different solvents. Data from X-ray powder diffraction, differential scanning calorimetry, and thermogravimetry enabled us to detect six different crystalline phases for taxifolin. Besides the already known fully hydrated phase, one partially hydrated phase, one monohydrated phase, two anhydrous polymorphs, and one probably solvated phase were obtained. The unit cell parameters were defined for three of them, while one anhydrous polymorph was fully structurally characterized by X-ray powder diffraction data. Scanning electron microscopy and hot stage microscopy were also employed to characterize the crystallized taxifolin powders. The hydrate and anhydrous forms showed remarkable stability in drastic storage conditions, and their solubility was deeply evaluated. The anhydrous form converted into the hydrate form during the equilibrium solubility study and taxifolin equilibrium solubility was about 1.2 mg/mL. The hydrate taxifolin intrinsic dissolution rate was 56.4 μg cm

Indexed as

differential scanning calorimetryequilibrium solubilityintrinsic solubilitypolymorphismtaxifolinthermogravimetryX-ray powder diffraction

Identifiers

PMID34575404
PMCPMC8469002

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.