Effect of Titanium Dioxide Nanocomposite Material and Antimicrobial Agents on Mushrooms Shelf-Life Preservation

Processes

Nada Benajiba¹  Abeer Elhakem²  Mona Alharbi²  Manal Almatrafi³  Rokayya Sami³  Mahmoud Helal⁴  Jing Jing⁵ 

[1] Department of Basic Health Sciences, Deanship of Preparatory Year, Princess Nourah Bint Abdul Rahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;Department of Biology, College of Science and humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;Department of Food Science and Nutrition, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;Department of Mechanical Engineering, Faculty of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China;

关键词: mushrooms;    nanocomposite material;    antimicrobial agents;    shelf-life;   

DOI  :  10.3390/pr8121632

来源: DOAJ

【 摘 要 】

Mushrooms have limited shelf-life and it can be prolonged if suitable conditions and treatments are effectively applied. In this study, nanocomposite material and antimicrobial agents with a combination of chitosan were used as novel packaging material for mushroom preservation. The microbiological analysis, physicochemical properties, headspace gas analysis, and polyphenol oxidase activity (PPO) during cold storage were investigated. As compared with control, coated mushrooms with chitosan (CHS), and nano-titanium dioxide CHSTiO₂ thymol + tween-80 CHSTiO₂/TT80 coating treatment showed significantly (p ≤ 0.05) lower respiration rate, microbial contaminations (4.27 log CFU/g), and (5.93 log CFU/g) for total yeast/mold and aerobic plate counts, respectively. The weight loss ratio was the lowest for CHSTiO₂/TT80 (10.88% loss) followed by CHSTiO₂ (11.76% loss). CHSTiO₂/TT80 recorded a higher electrolyte leakage rate (25.84%) and acidity. While the lowest PPO activity was established for CHSTiO₂ (17.09 U mg⁻¹ Protein), while the lowest values for total soluble solid concentrations were reported for CHSTiO₂/TT80 mushrooms (4.91%). These results indicated that CHSTiO₂/TT80 coating treatment might delay the aging degree of white button mushrooms and be investigated as a novel packaging material for other food products in the future.

【 授权许可】

Unknown