Chemical modification of pullulan exopolysaccharide by octenyl succinic anhydride: Optimization, physicochemical, structural and functional properties

Omar-Aziz, Maedeh; Yarmand, Mohammad Saeid; Khodaiyan, Faramarz; Mousavi, Mohammad; Gharaghani, Mohammad; Kennedy, John F.

doi:10.1016/j.ijbiomac.2020.08.158

Cited by 51 publications

(16 citation statements)

References 47 publications

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“…Pullulan exhibited several absorbance peaks at 3292, 2903, 1627, 1393/1307 and 997 cm −1 ( Figure 2 a). These vibrational peaks are referred to the hydroxyl (OH) group, aliphatic asymmetric stretching aliphatic CH 2 , O-C-O stretching, stretching of C-O and bending of OH, respectively [ 17 , 18 , 19 ]. After carboxymethylation process, new vibrational peak was appeared at 1579 cm −1 corresponding to carbonyl (C=O) group.…”

Section: Resultsmentioning

confidence: 99%

“…However, few reports were focused on the chemical modification of pullulan and more studies in such topic are still required to insert new advanced functions. Bio-based nano-fibers and food packaging esterified pullulan were synthesized by esterification with different carboxylic acids and octenyl succinic anhydride [ 15 , 16 , 17 ]. Pullulan was recently cross-linked with poly (vinyl alcohol) and chitosan and for application in self-healing and food packaging, respectively [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Controllable Release of Povidone-Iodine from Networked Pectin@Carboxymethyl Pullulan Hydrogel

Emam

Mohamed

2021

Polymers

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Povidone-iodine (PI) is a common antiseptic reagent which is used for skin infections and wound healing. The control release of PI is quite important to heal the deep and intense wounds. Herein, the preparation of biodegradable pectin@carboxymethyl pullulan (Pe@CMP) hydrogel was carried out and applied for controllable release of PI. CMP was synthesized by interaction of monochloroacetic acid with pullulan at different ratios. The Pe@CMP hydrogel was then prepared by crosslinking of pectin with CMP in presence of glutaraldehyde as cross linker. After carboxymethylation, COOH contents were enlarged to be 24.2–51.2 mmol/kg and degree of substitution was 0.44–0.93. The rheological properties of Pe@CMP hydrogel were enlarged by increment of pectin ratio. Swelling ratio in water (16.0–18.0%) was higher than that of artificial sweat (11.7–13.2%). Pe@CMP hydrogel containing 20% pectin, exhibited the lowest release and 57.7% from PI was released within 360 min. The biological activity of the released PI was monitored to be highly efficient. The kinetic of release was fitted well to the first ordered reaction and Higuchi models. The mechanism of release was explained by the swelling of hydrogel. The networked structure of hydrogel was opened by swelling and PI was released from the outer pores followed by inner pores, achieving the controllable release.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Controllable Release of Povidone-Iodine from Networked Pectin@Carboxymethyl Pullulan Hydrogel

Emam

Mohamed

2021

Polymers

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“…To determine the chemical composition, preliminary structures and possible interaction between the components of the composite films, the FTIR spectra of composite films were registered by the FT-IR spectrophotometer (EQUINX55, Brucher, Germany). The FTIR spectra were recorded over at the wavenumber range from 600 to 4000 cm −1 with 4 cm −1 resolutions [25].…”

Section: Fourier Transform Infrared Spectroscopy (Ft-ir) Analysismentioning

confidence: 99%

Development of antimicrobial/antioxidant nanocomposite film based on fish skin gelatin and chickpea protein isolated containing Microencapsulated Nigella sativa essential oil and copper sulfide nanoparticles for extending minced meat shelf life

Sani¹,

Rasul²,

Asdagh³

et al. 2021

Preprint

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Fish skin gelatin and chickpea protein isolated (G-CP) edible blend films incorporated with 0.25 and 0.5% copper sulfide nanoparticle (CuSNP) and Nigella sativa essential oil (MEO) (0.015 and 0.03%, w/w of protein) were prepared and optimized by the response surface methodology based on the central composite design (RSM-CCD). Antimicrobial activity, infrared spectroscopy (FTIR), X-ray diffraction (XRD), morphological characteristics and thermal attributes of composite films were examined. In general, the effect of CuSNPs and MEO on the properties of blended films, besides their inherent nature, is related to their interactions with the protein matrix and the synergistic effect on each other. As authenticated by the FTIR and XRD, the simultaneous use of CuSNPs and MEO because of the synergistic effect of CuSNPs on the antibacterial attributes of MEO and raising the content of antimicrobial components in the blend film expressed the highest antimicrobial functionality against E. coli. and S. aureus. Also, the results of microbiological and chemical tests of packaged minced meat revealed that the simultaneous use of MEO and CuSNP in the film has a positive synergistic effect in increasing the storage life of minced meat, as compared to the other samples.

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“…4,5 Among the several resources for the synthesis of NPSs, the microbial exopolysaccharides (EPSs) have attracted much attention scientific community given their potential for food, cosmetic, pharmaceutical, and biomedical applications. [6][7][8] Pullulan (Pull), classed, as Generally Regarded as Safe (GRAS) by the Food and Drug Administration (FDA) in the USA, is one of the more essential EPSs biopolymers. 9 It is produced by the fungus Aureobasidium pullulans and contains α-1,6-glycosidic bonded maltotriose units.…”

Section: Introductionmentioning

confidence: 99%

“…7,14,15 An exciting property of polymeric materials is their ability to be efficiently designed according to the desired threedimensional structure, such as hydrogels, macroporous scaffolds, microspheres, or micro-molded matrices, films, sponges, and foams. 4,7,[16][17][18] In this context, the employment of Pull for these devices' fabrication is continuously increasing due to its outstanding antimicrobial property, which can act as carriers for oral administration of therapeutic drugs, osteosynthesis materials (plates, pins, screws), and scaffolds for tissue engineering. [19][20][21] Dalgic et al 22 proposed the development of a natural origin bilayer pullulan-PHBV scaffold for wound healing applications.…”

Section: Introductionmentioning

confidence: 99%

Tuning of renewable sponge‐like polyurethane physical‐chemical and morphological properties using the pullulan as a reactive filler

Maia

Bomfim

Oliveira

et al. 2023

J of Applied Polymer Sci

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This study aimed to evaluate the effect of pullulan (Pull) on a renewable polyurethane sponge‐like scaffold synthesized from the Pull mixture with the castor oil‐based polyol and the prepolymer using the situ foaming method. The Pull contents on the sponge‐like are 5, 10, and 20 wt.%. The samples were evaluated by optical microscopy (OM), scanning electron microscopy (SEM), density, Fourier transform infrared spectroscopy (FTIR), contact angle, Thermogravimetry, X‐ray diffraction analysis (XRD), and compression strength test, respectively. FTIR results indicated that Pull was hydrogen‐bonded to PU foam chains and increased the sponge‐like scaffolds density, inducing a decrease in average cell size compared to the pristine PU, confirming that they act as nucleating agents. The Pull addition improved PU foams' hydrophobicity and mechanical properties and caused a thermal stability median between Pull and pristine PU. Thus, all renewable sponge‐like scaffolds were hydrophobics and presented appropriate mechanical behavior, exhibiting better physicochemical properties, and appearing as promising candidates for biomedical applications.

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Chemical modification of pullulan exopolysaccharide by octenyl succinic anhydride: Optimization, physicochemical, structural and functional properties

Cited by 51 publications

References 47 publications

Controllable Release of Povidone-Iodine from Networked Pectin@Carboxymethyl Pullulan Hydrogel

Controllable Release of Povidone-Iodine from Networked Pectin@Carboxymethyl Pullulan Hydrogel

Development of antimicrobial/antioxidant nanocomposite film based on fish skin gelatin and chickpea protein isolated containing Microencapsulated Nigella sativa essential oil and copper sulfide nanoparticles for extending minced meat shelf life

Tuning of renewable sponge‐like polyurethane physical‐chemical and morphological properties using the pullulan as a reactive filler

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