首页|Application of nano-titanum dioxide coating on fresh Highbush blueberries shelf life stored under ambient temperature

Application of nano-titanum dioxide coating on fresh Highbush blueberries shelf life stored under ambient temperature

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  • NSTL
  • Elsevier
Blueberries are non-climacteric fruits which have a limited shelf life due to the activities of rapid decay and softening. Coatings are eco-friendly by nature which helps in prolonging fruits and vegetable storage life. This research was carried out to determine the effects of nano-coatings on blueberries' life extension with 50-65% humidity for 8 days at ambient temperature. Different formulated coatings of chitosan (BC), chitosan/nano-titanium dioxide (BC-NT), and chitosan/nano-titanium dioxide (tween-thymol) (BC-NT-TT) were developed and used to check their effectiveness against some physical, mechanical and biochemical properties in addition to microbiological analysis and sensorial evaluations. The use of BC-NT-TT coating treatment was proved to prolong storage life as well as several quality parameters like weight loss (1.97%), decay rate (5.56%), shrinking rate (32.69%), ascorbic acid content (7.78 mg/100 g), appearance, texture, and antioxidant enzymes. Moreover, BC-NT-TT coating lessened the mesophilic aerobic bacteria, mould, and yeasts counts. BC-NT coatings enhanced pH (3.07), soluble solids content (9.64 degrees Brix), ripening index (21.42), and as well as anthocyanins (65.76 mg/100 g). BC coating significantly described the highest titratable acidity (0.41%) value. An over-all sensorial evaluation has remained acceptable and the final results indicated that BC-NT-TT should be used for preservation instead of other expensive and artificial chemicals.

Nano-titanum dioxideFresh highbush blueberryStorageQuality

Rokayya, Sami、Jia, Fuguo、Li, Yang、Nie, Xin、Xu, Jingwen、Han, Rui、Yu, Huiying、Amaah, Sikandar、Almatrafi, Manal Mused、Helal, Mahmoud

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Northeast Agr Univ, Coll Engn, Harbin 150030, Peoples R China

Northeast Agr Univ, Coll Food Sci, Harbin 150030, Peoples R China

Northeast Agr Univ, Coll Life Sci, Harbin 150030, Peoples R China

Taif Univ, Coll Sci, Dept Food Sci & Nutr, PO 11099, At Taif 21944, Saudi Arabia

Mansoura Univ, Fac Engn, Prod & Mech Design Dept, Mansoura 35516, Egypt

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2021

10.1016/j.lwt.2020.110422

LWT-Food Science & Technology

LWT-Food Science & Technology

ISSN：0023-6438
年,卷(期)：2021.137
  • 15
  • 48