Characterization of electron beam irradiated natural rubber/modified starch composites

Senna, Magdy M.; Mohamed, Reham A.; Shehab-Eldin, Amira N.; El‐Hamouly, S. H.

doi:10.1016/j.jiec.2012.03.004

Cited by 32 publications

(12 citation statements)

References 22 publications

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“…The properties of the starch treated by EBI has been studied by several researchers. The results indicated that EBI treatment could affected the morphological, physicochemical and rheological properties of starch (Bee, Tin, Ratnam, Yap, & Rahmat, 2018; Braşoveanu, Nemţanu, & Duţă, 2013; Luo et al, 2019; Senna, Mohamed, Shehab‐eldin, & El‐hamouly, 2012; Xue, Zhao, Wen, Cheng, & Lin, 2017). However, there is limited available information about the properties of EBI pre‐treated cornstarch at high concentration.…”

Section: Introductionmentioning

confidence: 99%

Effect of electron beam irradiation on physicochemical properties of corn starch and improvement of enzymatic saccharification of corn starch at high concentration (45%)

Feng

Wang

et al. 2021

J Food Process Engineering

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Cornstarch was irradiated under different doses of electron beam radiation (0–5.4 kGy), and the physicochemical properties of starch were analyzed. The dextrose equivalent (DE) values, which is a representative indicator of saccharification in the sugar production process, was measured after the EBI pre‐treated cornstarch at high concentration (45%, wt/wt) was hydrolyzed by thermostable α‐amylase and glucoamylase. The reducing sugar content of the cornstarch markedly increased with increasing irradiation dose. In addition, reduced transmittance, flexural vibration of chemical bond, the viscosity, and the relative crystallinity decreased with increasing irradiation dose. Scanning electron microscope (SEM) showed that the penetrating pinholes and pits were observed on the surface of irradiated cornstarch granules. After being hydrolyzed by thermostable α‐amylase and glucoamylase, slurry of cornstarch EBI pre‐treated at dose of 4.32 and 5.4 kGy exhibited the low viscosity values and high dextrose equivalent (DE) values. The resulting low viscosity values and high dextrose equivalent (DE) values slurry from EBI pre‐treated cornstarch have potential for use in syrup industry. Practical Applications The slurry made from EBI pre‐treated cornstarch at the concentration of 45% (wt/wt)exhibited a rather low viscosity values and high dextrose equivalent (DE) values compared with that of the slurry (45% wt/wt)made from the non‐EBI pre‐treated cornstarch. Therefore, the use of starch modified by electron beam irradiation treatment could lead to reduce corn syrup processing costs. Corn syrup is an important raw material of bakery industry. The reduction of its production cost is of great significance for stabilizing the market price of bakery food and promoting the coordinated development of bakery industry.

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Section: Introductionmentioning

confidence: 99%

Effect of electron beam irradiation on physicochemical properties of corn starch and improvement of enzymatic saccharification of corn starch at high concentration (45%)

Feng

Wang

et al. 2021

J Food Process Engineering

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“…Using this method, drying of the obtained nanoller in a hot oven or freeze dryer could be avoided; this can not only lower the production cost, but also prevent the aggregation of the hybrid materials. 35,36 Moreover, the latex compounding method can effectively disperse llers in polymer matrix and has been widely used. 37 Finally, vulcanization behaviors, vulcanization kinetics, and mechanical properties of the resultant rubber composite are investigated, and the related action mechanism is discussed.…”

Section: Introductionmentioning

confidence: 99%

A functional modified graphene oxide/nanodiamond/nano zinc oxide composite for excellent vulcanization properties of natural rubber

2020

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“…In previous work, many researchers have studied the properties of blends between NR and starch, and there is growing interest in the development of starch‐based products because of their natural biodegradability and the possibility of combining their biodegradability with cost reduction and market needs have been the object of intensive academic and industrial research. The preparation of graft copolymers of NR with cassava starch (CSt) was used for different application.…”

Section: Introductionmentioning

confidence: 99%

Rheological characterization and modeling of vulcanization kinetics of natural rubber/starch blends

Alwaan

2018

J of Applied Polymer Sci

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Vulcanization kinetics of natural rubber/starch (NR/ST) blends was investigated by oscillating disc rheometer. The scorch and cure times are significantly reduced with the loading of starch in all blends from 1.15 and 2.22 to 0.91 and 1.88 min, respectively, to improve curing rate. Meanwhile, the maximum torque values and the maximum vulcanization rate of NR/ST blend increase with the starch loading from 1.51 N m and 0.387 min−1 to 2.224 N m and 0.492 min−1 respectively. The results of vulcanization kinetics of NR and its blends revealed that it is controlled by two‐stages, chemical and diffusion. The experimental data of the vulcanization rate of NR/ST blends did not fit with autocatalytic kinetic model except the pure natural rubber. Therefore, the Criado method was used and it was observed that the reaction kinetic model of pure NR and its blends with starch is best described by the D diffusion model (D2). © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46347.

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Characterization of electron beam irradiated natural rubber/modified starch composites

Cited by 32 publications

References 22 publications

Effect of electron beam irradiation on physicochemical properties of corn starch and improvement of enzymatic saccharification of corn starch at high concentration (45%)

Effect of electron beam irradiation on physicochemical properties of corn starch and improvement of enzymatic saccharification of corn starch at high concentration (45%)

A functional modified graphene oxide/nanodiamond/nano zinc oxide composite for excellent vulcanization properties of natural rubber

Rheological characterization and modeling of vulcanization kinetics of natural rubber/starch blends

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