Degradation mechanism of amylopectin under ultrasonic irradiation

Wei, Benxi; Qi, Hongna; Zou, Jin; Li, Hongyan; Wang, Jing; Xu, Baoguo; Ma, Haile

doi:10.1016/j.foodhyd.2020.106371

Cited by 16 publications

(5 citation statements)

References 59 publications

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“…1B-C, a scatter diagram was appeared in -M e /M t -ln (1-M e -M t ) vs degradation time (t), while a good liner relationship was observed between ln ((M 0 -M e )/(M t -M e )) and degradation time (t), revealing that the midpoint chain scission model (first order degradation kinetics) was the most suitable to describe the degradation kinetics of PLPs (R 2 = 0.9964). Similar degradation model were observed in degradation of amylopectin, Wei et al [25] reported that the degradation of amylopectin was first manifested by the decrease of large molar mass and the formation of molecular chains of the same size as the main components. In our present study, the peak time and intensity of PLPs tended to be stable, which further indicated that the polysaccharide molecules formed stable components under the ultrasound.…”

Section: Resultssupporting

confidence: 66%

“…Among these, ultrasonic irradiation, as a physical technology, has attracted much attention because of its advantages of green, economic and environmental-friendly [24] . Ultrasound irradiation is a non-random process, the cavitation caused by ultrasonic radiation leads to the increase of temperature, pressure and shear force, thereby degrading polysaccharide chains [25] . In addition, the free radicals induced by ultrasonic radiation may further promote the cleavage of polysaccharide molecules [26] .…”

Section: Introductionmentioning

confidence: 99%

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Ultrasonic effects on the degradation kinetics, structural characteristics and protective effects on hepatocyte lipotoxicity induced by palmitic acid of Pueraria Lobata polysaccharides

Dou,

Zhang,

Tang

et al. 2023

Ultrasonics Sonochemistry

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Section: Resultssupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Ultrasonic effects on the degradation kinetics, structural characteristics and protective effects on hepatocyte lipotoxicity induced by palmitic acid of Pueraria Lobata polysaccharides

Dou,

Zhang,

Tang

et al. 2023

Ultrasonics Sonochemistry

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“…Therefore, organic wastewater purification is necessary for sustainable development and environmental protection. At present, a variety of techniques have been used for the degradation of organic pollutants in water, such as photocatalysis [4][5][6], adsorption [7], the Fenton method [8], hydrolysis [9], ionizing radiation [10], ultrasonic radiation [11], and oxygen plasma treatment [12]. Among them, photocatalysis can completely eliminate organic pollutants with its outstanding reaction rate, low processing cost, moderate operating conditions, and environment-friendly nature, making it one of the most effective methods in the removal of organic pollution [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Influence of Calcination Temperature on Photocatalyst Performances of Floral Bi2O3/TiO2 Composite

et al. 2022

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Heterojunction photocatalytic materials show excellent performance in degrading toxic pollutants. This study investigates the influence of calcination temperature on the performances of floral Bi2O3/TiO2 composite photocatalyst crystal, which was prepared with glycerol, bismuth nitrate, and titanium tetrachloride as the major raw materials via the solvothermal method. XRD, SEM/TEM, BET, Uv-vis, and XPS were employed to analyze the crystal structure, morphology, specific surface area, band gap, and surface chemical structure of the calcined temperature catalysts. The calcination temperature influence on the catalytic performance of composite photocatalysis was tested with rhodamine B (RhB) as the degradation object. The results revealed the high catalytic activity and higher photocatalytic performance of the Bi2O3/TiO2 catalyst. The degradation efficiency of the Bi2O3/TiO2 catalyst to RhB was 97%, 100%, and 91% at 400 °C, 450 °C, and 500 °C calcination temperatures, respectively, in which the peak degradation activity appeared at 450 °C. The characterization results show that the appropriate calcination temperature promoted the crystallization of the Bi2O3/TiO2 catalyst, increased its specific surface area and the active sites of catalytic reaction, and improved the separation efficiency of electrons and holes.

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“…The cavitation of ultrasound results in elevated temperature, high pressure, and shear force which can destroy the molecular structures of organic compounds. The free radicals induced by ultrasound probably further help the scission of the organic molecules (Pirsaheb & Moradi, 2020; Wei et al, 2021). Ultrasound degradation of organic compounds is considered as rapid, effective, greener, energy‐saving, and safety without extra chemicals and secondary pollutants compared to other detoxification methods (Pirsaheb & Moradi, 2020; Saleh et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Cysteine‐enhanced ultrasound degradation of patulin in acidic solution simulated pH of apple juice

Zhang

Diao

et al. 2022

Food Processing Preservation

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Ultrasound was used to degrade patulin in pH 3.5 of solution containing cysteine, and investigated the cysteine‐enhanced effects on ultrasound degradation of patulin. The results showed that ultrasound alone did not efficiently degrade patulin (reduced by 4.96%–8.90%) without adding cysteine, and their synergistic roles were more favorable for patulin degradation (reduced by 17.82%–60.98%). The molar ratio between cysteine and patulin, ultrasonic power and time, and water cooling of sample during ultrasound treatment, all significantly affected the patulin degradation efficiency, and obtained 79.33% of degradation rate after 60 min of ultrasound treatment at 540 W of power. Both the logarithmic decay model and zero‐kinetic model well simulated its degradation processes (R2 > 0.95). The radical reaction may be the main sonolysis mechanism of patulin in the presence of cysteine. Additionally, the patulin degradation efficiency induced by heating was far less than that by ultrasound under other same conditions. Novelty impact statement Cysteine enhanced the ultrasound degradation of patulin in highly acidic conditions. Degradation mechanism of patulin by ultrasound in the presence of cysteine was deduced. Sonolysis kinetics of patulin in the presence of cysteine were simulated.

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Degradation mechanism of amylopectin under ultrasonic irradiation

Cited by 16 publications

References 59 publications

Ultrasonic effects on the degradation kinetics, structural characteristics and protective effects on hepatocyte lipotoxicity induced by palmitic acid of Pueraria Lobata polysaccharides

Ultrasonic effects on the degradation kinetics, structural characteristics and protective effects on hepatocyte lipotoxicity induced by palmitic acid of Pueraria Lobata polysaccharides

Influence of Calcination Temperature on Photocatalyst Performances of Floral Bi2O3/TiO2 Composite

Cysteine‐enhanced ultrasound degradation of patulin in acidic solution simulated pH of apple juice

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