Enhancing starch functionality through synergistic modification via sequential treatments with cold plasma and electron beam irradiation.

Autor: Braşoveanu M; National Institute for Laser, Plasma and Radiation Physics, 409 Atomiştilor St., PO Box MG-36, 077125 Măgurele, Romania., Sabbaghi H; Department of Food Science and Technology, Faculty of Agriculture and Animal Science, University of Torbat-e Jam, Torbat-e Jam, Razavi Khorasan Province, Iran., Ticoș D; National Institute for Laser, Plasma and Radiation Physics, 409 Atomiştilor St., PO Box MG-36, 077125 Măgurele, Romania., Dumitru M; National Institute for Laser, Plasma and Radiation Physics, 409 Atomiştilor St., PO Box MG-36, 077125 Măgurele, Romania., Sunooj KV; Department of Food Science and Technology, Pondicherry University, Puducherry 605014, India., Sher F; Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, United Kingdom., Nemţanu MR; National Institute for Laser, Plasma and Radiation Physics, 409 Atomiştilor St., PO Box MG-36, 077125 Măgurele, Romania. Electronic address: monica.nemtanu@inflpr.ro.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Jun; Vol. 270 (Pt 1), pp. 132346. Date of Electronic Publication: 2024 May 13.
DOI: 10.1016/j.ijbiomac.2024.132346
Abstrakt: The impact of dual sequential modifications using radio-frequency (RF) plasma and electron beam irradiation (EBI) on starch properties was investigated and compared with single treatments within an irradiation dose range of 5-20 kGy. Regardless of sequence, dual treatments synergistically affected starch properties, increasing acidity, solubility, and paste clarity, while decreasing rheological features with increasing irradiation dose. The molecular weight distribution was also synergistically influenced. Amylopectin distribution broadened particularly below 10 kGy. Amylose narrowed its distribution across all irradiation doses. This was due to dominating EBI-induced degradation and molecular rearrangements from RF plasma. With the highest average radiation-chemical yield (G) and degradation rate constant (k) of (2.12 ± 0.14) × 10 -6  mol·J -1 and (3.43 ± 0.23) × 10 -4  kGy -1 , respectively, upon RF plasma pre-treatment, amylose underwent random chain scission. In comparison to single treatments, dual modification caused minor alterations in spectral characteristics and crystal short-range order structure, along with increased granule aggregation and surface irregularities. The synergistic effect was dose-dependent, significant up to 10 kGy, irrespective of treatment sequence. The highest synergistic ratio was observed when RF plasma preceded irradiation, demonstrating the superior efficiency of plasma pre-treatment in combination with EBI. This synergy has the potential to lower costs and extend starch's technological uses by enhancing radiation sensitivity and reducing the irradiation dose.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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