Cyclodextrin/dextran based hydrogels prepared by cross-linking with sodium trimetaphosphate

Wintgens, Véronique; Lorthioir, Cédric; Dubot, Pierre; Sébille, Bernard; Amiel, Catherine

doi:10.1016/j.carbpol.2015.06.038

Cited by 19 publications

(6 citation statements)

References 45 publications

(69 reference statements)

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“…The swelling rate in percentage (%S) or the water absorption capacity (%WAC) was quantified using the following Eq. ( 1 ) (Hoti et al 2021 ; Afinjuomo et al 2019 ; Wintgens et al 2015 ; Ben Ammar et al 2018 ): where m t represents the weight of the swollen sample at time t and m 0 represents the initial weight of the dry sample.…”

Section: Methodsmentioning

confidence: 99%

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Sustainable mechanochemical synthesis of β-cyclodextrin polymers by twin screw extrusion

Pedrazzo

Trotta

Hoti

et al. 2021

Environ Sci Pollut Res

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Cyclodextrin nanosponges (CD-NS) are cross-linked cyclodextrin polymers characterized by a nanostructured three-dimensional network. CD-NSs in the last years found many different applications in the pharmaceutical field for the controlled release of drugs and for the absorption of undesired substances from physiological media, food, and wastewater. Most of CD-NS syntheses involve the solubilization of the chosen CD in closed batch, using a suitable organic polar aprotic liquid, which may affect potential environmental or biomedical applications. Since the research is now moving towards more sustainable approaches, new and greener syntheses of CD-NS are now being developed. Here, it is reported a new eco-friendly and efficient synthesis of nanosponges through mechanochemistry. Mechanochemistry involves the application of mechanical forces to drive and control chemical reactions by transferring energy to chemical bonds. The mechanochemical approach involves the use of a twin-screw extruder (TSE) as a chemical reactor: TSE are capable of fine temperature control and, furthermore, TS Extrusion is a continuous process and not a batch process. Among the many available CD-NS syntheses, we tested our solvent-free approach on a β-CD/citric acid (CA) system. Moreover, using TSE, the same polymer was obtained in a considerably shorter time. The so obtained NSs were used for the adsorption and removal of probe molecules, in comparison with NSs prepared by cross-linking β-CD with CA in batch. Graphical Abstract

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Section: Methodsmentioning

confidence: 99%

Section: Swelling Measurementsmentioning

confidence: 99%

Sustainable mechanochemical synthesis of β-cyclodextrin polymers by twin screw extrusion

Pedrazzo

Trotta

Hoti

et al. 2021

Environ Sci Pollut Res

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“…The synthesis of STMP occurs via electrolysis of sodium chloride (NaCl) solution forming sodium hydroxide (NaOH), followed by neutralization with orthophosphoric acid (NaH 2 PO 4 ) and recrystallization [128]. Over the past decades, STMP has been used as crosslinkers for natural polymers [129][130][131][132].…”

Section: Sodium Trimetaphosphate (Stmp)mentioning

confidence: 99%

Crosslinkers for polysaccharides and proteins: Synthesis conditions, mechanisms, and crosslinking efficiency, a review

Alavarse

Frachini

Silva

et al. 2022

International Journal of Biological Macromolecules

121

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“…Sodium trimetaphosphate (STMP) is commonly used as a cross‐linking agent for chemical modification of starch. Results have shown that chemically modified wheat starch possesses remarkable superiority in terms of thermal and shear resistance relative to its native counterpart . It was also found that the amount of slowly digestible starch (SDS) decreased as the RS content was increased by the modification, indicating that a given fraction of the SDS was transformed into RS .…”

Section: Introductionmentioning

confidence: 99%

Effect of cross‐linking on the physicochemical, functional and digestibility properties of starch from Macho (Musa paradisiaca L.) and Roatan (Musa sapientum L.) banana varieties

et al. 2015

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Starches from the Macho (Musa paradisiaca L.) and Roatan (Musa sapientum L.) banana varieties were chemically modified by sodium trimetaphosphate (STMP) cross‐linking. Cross‐linking affected the pasting properties of the modified starch, with more pronounced changes observed in the Macho variety than in the Roatan starch. In turn, this result indicated that the former starch source is more susceptible to STMP cross‐linking. The swelling and solubility profiles exhibited an important decrease with cross‐linking, which was caused by increased ordering of the internal granule structure induced by cross‐linking modifications. The gelatinization temperature and enthalpy increased due to cross‐linking, indicating an improvement in the starch granule stability. Englyst's in vitro digestibility studies of the modified starch were performed to estimate the content of rapidly digestible (RDS), slowly digestible (SDS) and resistant (RS) starch fractions. It was shown that STMP cross‐linking increased the RS content of the two banana varieties. However, the SDS content increased only for the Macho variety. In general, the viscosity was lower for the modified starches than for their native counterparts. The results of the current work indicate that the chemical modification process via STMP cross‐linking offers an interesting alternative for obtaining RS from banana starches.

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Cyclodextrin/dextran based hydrogels prepared by cross-linking with sodium trimetaphosphate

Cited by 19 publications

References 45 publications

Sustainable mechanochemical synthesis of β-cyclodextrin polymers by twin screw extrusion

Sustainable mechanochemical synthesis of β-cyclodextrin polymers by twin screw extrusion

Crosslinkers for polysaccharides and proteins: Synthesis conditions, mechanisms, and crosslinking efficiency, a review

Effect of cross‐linking on the physicochemical, functional and digestibility properties of starch from Macho (Musa paradisiaca L.) and Roatan (Musa sapientum L.) banana varieties

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