TEMPO-oxidized cellulose nanofiber/kafirin protein thin film crosslinked by Maillard reaction

Lal, Sumit; Mhaske, S. T.

doi:10.1007/s10570-019-02509-7

Cited by 40 publications

(12 citation statements)

References 39 publications

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“…FT-IR was used to characterize the functional groups in the CNMs (Figure G). In the CNCs, the sulfate groups were present on the cellulose surface due to hydrolysis with sulfuric acid, as demonstrated by the appearance of a band at 811 cm –1 , corresponding to C–O–S symmetric stretching. ,, Carboxymethylated CNF had bands at 1590, 1735, and 2855 cm –1 , indicating CO stretching of the sodium carboxyl groups, CO stretching vibration of the carboxylic acid group, and C–H stretching vibration of the methylene groups, respectively. – The total acidic group contents of CNCs and CNFs estimated by the conductometric titration assay were 0.32 (±0.04) mmol kg –1 and 1.36 (±0.06) mmol kg –1 , respectively (Figure H). The introduction of sulfate and carboxymethyl groups to CNMs caused a significant increase in their surface charge; the CNC showed −44.5 ± 1.3 mV, and the CNF showed −72.8 ± 3.7 mV.…”

Section: Resultsmentioning

confidence: 99%

Encapsulation of the Biocontrol Agent Beauveria bassiana in Cellulose Nanomaterial-Stabilized Pickering Emulsion for Foliar Application

Shin,

Choi

et al. 2023

ACS Agric. Sci. Technol.

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Encapsulation of living cells is a structural enhancement method by providing a viable environment to tolerate various environmental stresses such as ultraviolet (UV) radiation. The shells provided by encapsulation are constructed of additional protective layers to extend the in vitro cell lifespan. Here, we present a cellulose nanomaterial (CNM)-stabilized Pickering emulsion to encapsulate Beauveria bassiana spores. B. bassiana is a widely used biocontrol agent against agricultural insect pests but is unable to survive under sunlight when applied to crop plants in the field. We synthesized Pickering emulsions stabilized by cellulose nanocrystals and cellulose nanofibrils at various ratios and analyzed the phase stability, emulsion size distribution, colloidal stability, and rheological properties. The most stable Pickering emulsion composition was then selected to encapsulate B. bassiana conidia. The encapsulated conidia maintained their viability to germinate and grow and showed excellent insecticidal activity, even after UV radiation exposure. This work demonstrated that CNM-stabilized Pickering emulsions could be utilized to encapsulate microbial cells to maintain cell viability under unfavorable environmental conditions. This finding showed the increased efficacy of B. bassiana for foliar application; this research could lead to significant advances in sustainable agriculture regarding eco-friendly pest control.

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Section: Resultsmentioning

confidence: 99%

Encapsulation of the Biocontrol Agent Beauveria bassiana in Cellulose Nanomaterial-Stabilized Pickering Emulsion for Foliar Application

Shin,

Choi

et al. 2023

ACS Agric. Sci. Technol.

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“…The samples were prepared by fixing 2 cm × 3 cm sample films flat on top of a glass slide using tapes. The crystallinity index (CI) of the samples was determined based on the XRD diffraction patterns using the following equation , where I cr is the intensity of the main diffraction peak of the samples (at 20.04° or 21.25°) and I am is the diffraction intensity of the amorphous fraction of the samples (sampled at 12.78°).…”

Section: Methodsmentioning

confidence: 99%

UV-Curable Cellulose Nanofiber-Reinforced Soy Protein Resins for 3D Printing and Conventional Molding

Mohawk

Jahani

et al. 2020

ACS Appl. Polym. Mater.

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Plastic wastes pose a serious threat to the environment and there has been strong interest in developing soy protein isolate (SPI)-based plastics to reduce the use of traditional petroleum-based ones. However, the use of SPI plastics has been hindered due to their inferior mechanical properties and poor water resistance compared with traditional plastics. In this work, SPI plastics with significantly improved mechanical properties and water resistance were developed using UV-curable SPI resin and UVcurable cellulose nanofibers. Three UV-curable materials, i.e., methacrylated SPI (MSPI), methacrylated cellulose nanofibrils (MCNF), and methacrylated cellulose nanocrystals (MCNC), were produced through methacrylation of SPI, CNF, and CNC, respectively. Methacrylation of the materials and UV curing of the resins were confirmed using Fourier-transform infrared spectroscopy. Uniform dispersion of CNC, CNF, MCNC, or MCNF in the resin was confirmed by scanning electron microscopy and X-ray diffraction. The tensile properties and water resistance of the resins were found to improve with increasing curing time and degree of methacrylation. The incorporation of CNC, CNF, MCNC, and MCNF further improved the mechanical and water resistance performance of the resins, with the MCNF leading to the largest improvement. UV curing and the cellulose nanofibers evidently worked synergistically to improve the properties of the resins. This study demonstrated a method and formulations to produce the SPI plastics with exceptional properties. Furthermore, the potential of this resin in 3D printing and conventional plastic molding was demonstrated.

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“…59 Thus, an excessive amount of NaClO leads to cellulose loss, and it also increases the overall cost of the TEMPO reaction. 59,60 Fig. 2b also illustrates the percentage of bulk cellulose transformed into nanocellulose (reaction yield %) as a function of reaction time for various cellulose : NaClO molar ratios.…”

Section: Efb Ber Compositionmentioning

confidence: 99%

Influence of reaction variables on the surface chemistry of cellulose nanofibers derived from palm oil empty fruit bunches

Martínez-Ramírez,

Rincón-Ortiz,

Baldovino-Medrano

et al. 2023

RSC Adv.

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TEMPO-oxidized cellulose nanofiber/kafirin protein thin film crosslinked by Maillard reaction

Cited by 40 publications

References 39 publications

Encapsulation of the Biocontrol Agent Beauveria bassiana in Cellulose Nanomaterial-Stabilized Pickering Emulsion for Foliar Application

Encapsulation of the Biocontrol Agent Beauveria bassiana in Cellulose Nanomaterial-Stabilized Pickering Emulsion for Foliar Application

UV-Curable Cellulose Nanofiber-Reinforced Soy Protein Resins for 3D Printing and Conventional Molding

Influence of reaction variables on the surface chemistry of cellulose nanofibers derived from palm oil empty fruit bunches

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