The incorporation of chitosan nanoparticles enhances the barrier properties and antifungal activity of chitosan-based nanocomposite coating films.

The potential alternative of exploring the development of nanocomposites through a single-molecule approach, such as combining chitosan nanoparticles (ChiNP) with chitosan (Chi), remains to be investigated. To maintain the insolubility of the ChiNP filler in the system, the protonation of weakly basic amino groups necessitates the pH of the coating solution above the pKa (6-6.5).

Effect of coatings containing 1-methylcyclopropane or mandarin peel extract on the freshness and metabolic profiles of cold stored strawberry.

The application of coatings is a strategy for maintaining the freshness of highly perishable fruits. This research aimed to evaluate the quality indices of strawberries (Amaou) coated with new coatings based on the sodium carboxymethyl cellulose (CMC) and cellulose nanofibres (CNF) with incorporated mandarin peel extract (ME) or 1-methylcyclopropene (1-MCP) during storage at 20days at 5 °C and 85% relative humidity (RH). Dissolving the coating solution containing ME in 1-MCP maintained its colour for up to 50 days.

Improvement of cross-linked films based on chitosan/diepoxy-poly (ethylene glycol) incorporating trans-cinnamaldehyde essential oil: Preparation, properties, and application in banana storage.

In this study, development of bioactive coatings containing 1 % (w/v) chitosan (CS), 0.6 % (w/v) diepoxy-polyethylene glycol (PEG), and trans-cinnamaldehyde (CIN) was achieved. The physicochemical and biological properties of the coatings were investigated.

Persimmon preservation using edible coating of chitosan enriched with ginger oil and visualization of internal structure changes using X-ray computed tomography.

The incorporation of ginger oil (GO) influenced the physical, optical, and structural properties of the chitosan (CH) film including the decreases of moisture content (60.15 %), water solubility (35.37 %) and water vapor permeability (WVP) (32.

Estimation of Radionuclide Concentrations and Average Annual Committed Effective Dose due to Ingestion for the Population in the Red River Delta, Vietnam.

Radioactivity concentrations of nuclides of the Th and U radioactive chains and K, Sr, Cs, and Pu were surveyed for raw and cooked food of the population in the Red River delta region, Vietnam, using α-, γ-spectrometry, and liquid scintillation counting techniques. The concentration of K in the cooked food was the highest compared to those of other radionuclides ranging from (23 ± 5) (rice) to (347 ± 50) Bq kg dw (tofu). The Po concentration in the cooked food ranged from its limit of detection (LOD) of 5 mBq kg dw (rice) to (4.

Mothers' willingness to pay for daughters' HPV vaccine in northern Vietnam.

HPV vaccine is effective in preventing human papillomavirus, the main cause of cervical cancer. In Vietnam, at first, it was subsidized at $5 a dose and reached the coverage of 96% in two pilot provinces, indicating potentially high acceptance. Currently, it is provided at $120-195 for three doses.