Journal
CRYSTALS
Volume 11, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/cryst11060603
Keywords
Agaricus bisporus; coatings; film; storage; reactive oxygen species; total phenols; antioxidant; enzymes
Funding
- Deanship of Scientific Research by Taif University [102-441-1]
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The study utilized nano-coating films and novel active coating materials to prolong the shelf life of mushrooms, indicating that this method can enhance mushroom quality and improve nutritional content.
White button mushroom or (Agaricus bisporus) is known as a healthy foodstuff with several nutrients, polyphenols, proteins, and dietary fibers. Mushrooms have a short shelf-life, approximately three to four days at commercial storage and about eight days under chilling conditions. In the current study, titanium dioxide nanoparticles and chitosan films were used as novel active coating materials with the addition of thymol and tween (T and T) as food preservatives to prolong mushroom shelf life up to 12 days. Chitosan, Chitosan-Nano, and Chitosan-Nano/TT were used as coating materials, while water was used as control. Chitosan-Nano/TT film reported the lowest peroxidase activity (0.005 U kg(-1) FW) and the highest superoxide dismutase activity (4.033 U kg(-1) FW), while catalase activity in Chitosan-Nano film was (0.45 U kg(-1) FW). Chitosan-Nano film enhanced the reactive oxygen species production levels, DPPH radicals (74.70%), and malondialdehyde content (1.68 mu mol kg(-1)FW). Chitosan-Nano/TT film preserved the respiration rates (O-2 consumption -0.026 mmol s(-1)kg(-1), CO2 production -0.004 mg CO2 kg(-1)s(-1)) and increased the phenolic contents (0.38 g kg(-1)). The results suggested that nano-coating films can increase the oxidation processes which enhanced the quality of the mushrooms.
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