The combined effect of coating treatments to nisin, nano-silica, and chitosan on oxidation processes of stored button mushrooms at 4 °C

Agaricus bisporus is an edible fungus with a limited shelf life due to high moisture loss, browning, respiration, self-dissolve, lack of physical protection, rotting, and microbial attack. Mushrooms have been coated with nisin, nano-silica, and chitosan films in order to extend the shelf life, prese...

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Bibliographic Details
Published in:Scientific reports 2021-03, Vol.11 (1), p.6031-6031, Article 6031
Main Authors: Sami, Rokayya, Elhakem, Abeer, Alharbi, Mona, Benajiba, Nada, Fikry, Mohammad, Helal, Mahmoud
Format: Article
Language:English
Subjects:
631/1647
631/449
631/45
631/61
639/925
Antimicrobial agents
Basidiocarps
Catalase
Chitosan
Coatings
Free radicals
Fungi
Humanities and Social Sciences
Hydrogen peroxide
Hydroxyl radicals
Malondialdehyde
multidisciplinary
Mushrooms
Nisin
Oxidation
Phenolic compounds
Phenols
Reactive oxygen species
Respiration
Science
Science (multidisciplinary)
Shelf life
Silica
Sulfonic acid
Superoxide anions
Superoxide dismutase
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Summary:Agaricus bisporus is an edible fungus with a limited shelf life due to high moisture loss, browning, respiration, self-dissolve, lack of physical protection, rotting, and microbial attack. Mushrooms have been coated with nisin, nano-silica, and chitosan films in order to extend the shelf life, preserve quality and oxidation activities. The results showed that treating the mushrooms with chitosan and nano-silica (CH-AN-SILICA) increased superoxide dismutase activity (SOD—6.53 U kg −1 ), total phenolic content (TPC—0.39 g kg −1 ), and malondialdehyde content (MDA—1.63 µmol kg −1 ). CH-AN-SILICA treatment exhibited the highest scavenging against 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals. While, CH-AN-SILICA with the addition of nisin as an antimicrobial agent preserved almost the reactive oxygen species such as hydroxyl radicals (OH—0.33 µmol g −1 ), superoxide anion (O 2 •− —0.271 mmol s −1  kg −1 ), and hydrogen peroxide (H 2 O 2 —21.54 µmol g −1 ). Besides, both CH-AN-SILICA and CH-AN-SILICA/N enhanced the catalase (CAT) activity and reduced the respiration rate. The results indicated that the combination of nisin, nano-silica, and chitosan coating films was effective in providing a longer storage life with acceptable quality in mushrooms.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-85610-x