Ultrasonic assisted production of starch nanoparticles: Structural characterization and mechanism of disintegration

Boufi, Sami; Haaj, Sihem Bel; Magnin, Albert; Pignon, Frédéric; Impéror‐Clerc, Marianne; Mortha, Gérard

doi:10.1016/j.ultsonch.2017.09.033

Cited by 111 publications

(45 citation statements)

References 21 publications

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“…In addition, ultrasonic treatment could produce strong mechanical forces on the interior of starch granules and make starch molecules hydrate. The similar phenomenon was also reported in previous studies (Boufi et al, ; HerCeg et al, ; Hu et al, ). After ultrasonic treatment for 1 min, a small amount of water entered the starch granules.…”

Section: Resultssupporting

confidence: 91%

Preparation of octenyl succinic anhydride‐modified cassava starch by the ultrasonic‐assisted method and its influence mechanism

Zhang

Yu²,

Ding

et al. 2019

J Food Process Preserv

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As an effective physical method for starch modification, ultrasonic treatment can significantly improve the chemical activity and quality of starch, but its mechanism needs to be further investigated. In this paper, ultrasonic‐modified cassava starch and octenyl succinic anhydride (OSA)‐modified cassava starch with low degree of substitution were prepared under ultrasonic conditions. The effects of ultrasound on the structure and properties of native cassava starch and the quality of OSA‐modified cassava starch were studied. The results showed that the crystallinity decreased from 30.7% to 26.4%, the reaction efficiency increased from 62.28% to 66.20%, and other characteristics also changed after 1 min of ultrasonic treatment. While the structure and properties of cassava starch changed differently after ultrasonic treatments for 8 min and 32–60 min. Consequently, these changes showed that ultrasonic treatment had a significant mechanochemical effect on starch granules. The quality of OSA‐modified cassava starch was improved significantly and its influence mechanism was analyzed by the mechanochemistry theory. Practical applications During the esterification of starch, the dense arrangement of crystalline regions limits the reaction of esterifying agents with starch granules. This study showed that ultrasound exerted strong mechanical forces on starch granules, which promoted the production of free radicals and increased the free energy of starch molecules. Besides, the increase of mechanochemical active sites in starch granules was conducive to the homogeneous reaction of octenyl succinic anhydride (OSA) and starch molecules. Therefore, the quality of OSA‐modified cassava starch prepared by ultrasonic‐assisted treatment was significantly improved. This study provides a reference for the application of ultrasonic technology in other fields and also lays a theoretical basis for the industrial development of high performance‐modified starch.

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Section: Resultssupporting

confidence: 91%

Preparation of octenyl succinic anhydride‐modified cassava starch by the ultrasonic‐assisted method and its influence mechanism

Zhang

Yu²,

Ding

et al. 2019

J Food Process Preserv

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“…However, with the increase in shear rate, the viscosity shows the slow decline indicating increase in liquidity. Several studies have also proven higher viscosity of starch nanoparticle suspensions than native starch 33,34 . The rheological properties of the starch are influenced by shape, size and distribution of the granules and also by the amylose content and granule-granule interaction 35 .…”

Section: Resultsmentioning

confidence: 99%

Production and characterization of starch nanoparticles by mild alkali hydrolysis and ultra-sonication process

Ahmad

Gani

Hassan

et al. 2020

Sci Rep

156

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in this report, synthesis of the starch nanoparticles from underutilized and cheap sources viz: Horse chestnut (HS), Water chestnut (WS) and Lotus stem (LS) by using mild alkali hydrolysis and ultrasonication process has been presented. The particles were characterized by Differential scanning colorimeter (DSC), X-Ray Diffraction (XRD), Rheology, Scanning electron microscopy (SEM) and Fourier transform infra-spectroscopy (AtR-ftiR). the particle size measurements, functional properties and antioxidant potential of starch nanoparticles were also analyzed. the experimental results revealed that the average particle size diameter of Horse chestnut starch nanoparticles (HSp), Water chestnut starch nanoparticles (WSP) and Lotus stem starch nanoparticles (LSP) was found to be 420, 606 and 535 nm, respectively. We observed a notable increase in the water absorption capacity but decreased capacity for oil absorption in the starch nano-particles. SeM images revealed damaged starch granules after size reduction. Additionally, loss of crystallinity and molecular order was observed from XRD and AtR-ftiR spectra. it was concluded that the starch nanoparticles have better thermal stability, increased viscosity and antioxidant properties. Starch is a natural biopolymer, which is abundantly found in nature and also major component of our daily diet. It is mainly found in plant roots, staple crops and cereals such as rice, maize, wheat, barley, corn, tapioca, potato and others 1. Starch is composed of linear chain molecule; amylose and branched chain molecule; amylopectin. These two starch components are assembled in the form of granules with the size ranging from 1 to 100 µm 2. Starch has various applications, it has been used as thickening, gelling, stabilizing in a wide variety of foods and non-food products 3,4. Starch is also used for drug and bioactive delivery systems 3,5,6. The native form has however many limitations such as poor solubility, retro-gradation, limited digestibility and poor functional properties. For this reason, various physical, chemical and enzymatic methods have been employed to reduce these limitations or to add new attributes. Currently, starch nano particles are gaining more interest for improved quality and wide applications. They have been considered as the promising biomaterials for novel utilization in foods, cosmetics, and medicines as well as various composites 7. There are various techniques for starch nano particle preparations including hydrolysis by acid, enzymes or combination of two, regeneration and mechanical treatments using extrusion, irradiation, ultrasound or precipitation by co solvent 3,8. The easy and cost-effective methods for starch and starch derivative nanoparticles are always of paramount importance. Among various such methods, nano-precipation and ultra-sonication are very simple and reliable methods for nanoparticle production with desired size. The precipitation process involves a drop wise addition of a dilute starch solution into a non-solvent and ultra-sonication redu...

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“…The energy of the ultrasonication weakens the cohesive force of the okra granules, making it easier for their detachment. The process continues inside the granules and cellulose chains are released in the form of tiny nanoparticles [21]. The nanoparticles appear well individualized with hexagonal, platy and rod-like shapes.…”

Section: Resultsmentioning

confidence: 99%

Synergy of the flow behaviour and disperse phase of cellulose nanoparticles in enhancing oil recovery at reservoir condition

et al. 2019

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Ascorbic acid was used for the first time to synthesize cellulose nanoparticles (CNP) extracted from okra mucilage. The physical properties of the CNP including their size distribution, and crystalline structures were investigated. The rheological properties of the cellulose nanofluid (CNF) were compared with the bulk okra mucilage and commercial polymer xanthan. The interfacial properties of the CNF at the interface of oil-water (O/W) system were investigated at different concentrations and temperatures. The effects of the interaction between the electrolyte and ultrasonic were determined. Core flooding experiment was conducted at reservoir condition to justify the effect of the flow behaviour and disperse phase behaviour of CNF on additional oil recovery. The performance of the CNF was compared to conventional EOR chemical. The combined method of ultrasonic, weak-acid hydrolysis and nanoprecipitation were effective in producing spherical and polygonal nanoparticles with a mean diameter of 100 nm, increased yield of 51% and preserved crystallinity respectively. The zeta potential result shows that the CNF was stable, and the surface charge signifies long term stability of the fluid when injected into oil field reservoirs. The CNF, okra and xanthan exhibited shear-thinning and pseudoplastic behaviour. The IFT decreased with increase in concentration of CNF, electrolyte and temperature. The pressure drop data confirmed the stability of CNF at 120°C and the formation of oil bank was enough to increase the oil recovery by 20%. CNF was found to be very effective in mobilizing residual oil at high-temperature high-pressure (HTHP) reservoir condition. The energy and cost estimations have shown that investing in ultrasonic-assisted weak-acid hydrolysis is easier, cost-effective, and can reduce energy consumption making the method economically advantageous compared to conventional methods.

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Ultrasonic assisted production of starch nanoparticles: Structural characterization and mechanism of disintegration

Cited by 111 publications

References 21 publications

Preparation of octenyl succinic anhydride‐modified cassava starch by the ultrasonic‐assisted method and its influence mechanism

Preparation of octenyl succinic anhydride‐modified cassava starch by the ultrasonic‐assisted method and its influence mechanism

Production and characterization of starch nanoparticles by mild alkali hydrolysis and ultra-sonication process

Synergy of the flow behaviour and disperse phase of cellulose nanoparticles in enhancing oil recovery at reservoir condition

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