Comparative study of UVC irradiation and heat treatment on Fenton-like oxidation of corn starch in a continuous flow system: Performance and greenness

IF 4.1 2区化学 Q2 POLYMER SCIENCE

Polymer Pub Date : 2025-04-17 DOI:10.1016/j.polymer.2025.128418

Armin Fashi , Ali Fallah Delavar , Abbasali Zamani , Nader Noshiranzadeh , Mehrdad Mohammadi

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Abstract

UV irradiation and heat treatment, recognized as environmentally friendly methods, are extensively applied in modifying starch properties. The current work presented Fenton-like oxidation process of corn starch using a blend of H₂O₂ and CuSO₄ under ultraviolet C (UVC) irradiation (wavelength of 254 nm) and heat exposure (50 °C) within a novel continuous flow system. The parameters of the experimental setup were separately optimized through one-factor-at-a-time and orthogonal design. The optimal conditions for both treatments included the pH value of 5.0 for starch slurry, irradiation duration of 60 min along with oxidant and catalyst concentrations of 2 % and 0.5 %, respectively. Under the optimized conditions, the effect of using H₂O₂/Cu²⁺ or H₂O₂ alone in combination with UVC and heat on physicochemical and structural attributes of native starch was compared. The higher oxidation degree was obtained for treatments of H₂O₂/Cu²⁺/Heat (0.461 %) and H₂O₂/Cu²⁺/UVC (0.378 %) compared to the other treatments. The findings showed that thermal treatment exerted a more pronounced influence on properties of oxidized starches compared to UV-C irradiation. Eco-scale methodology verified the green nature of the designed treatments for the starch oxidation.

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紫外线照射和热处理对连续流系统中玉米淀粉 Fenton 类氧化作用的比较研究：性能和绿色环保

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.