Active naringin-chitosan films: Impact of UV irradiation

Green biosorbents based on chitosan-montmorillonite beads for anionic dye removal

“…The post-adsorption samples presented some modifications in FTIR spectra ( Figure SM 6-i). The UV-Vis spectrum for KSF-Na showed an absorption band centered on 260 nm [102,103] and for chitosan two bands, a broad one at 300 nm and a sharp one at 400 nm (Figure SM 7) [104,105]. The spectra of the chitosan-KSF/dye hybrids presented new broad band at around 600 nm associated probably with the bathochromic effect of the original absorption of the free dye at 543 nm.…”

Halloysite nanotubes loaded with peppermint essential oil as filler for functional biopolymer film

“…The interaction of PO with DPPH radicals resulted in fast decoloration of the DPPH solution. Radical scavenging activity was determined following a procedure reported in literature (Iturriaga, Olabarrieta, Castellan, Gardrat, & Coma, 2014). A stock solution of PO (30.0 mg mL −1 ) was made up in ethanol 50% (v/v) and then diluted to prepare the concentration series for PO antioxidant capacity determination.…”

Effects of ultraviolet‐C irradiation on the physicochemical properties of polysaccharide films prepared from the stalk base of oyster mushrooms (Pleurotus ostreatus)

“…It should also be noted that there was no difference between the antimicrobial activity of OMP‐CTLE film and that of OMP‐CTLE/UVC film, indicating that UV‐C irradiation did not affect antimicrobial activity. The chitosan film with citrus extract revealed inhibition zones against Listeria innocua and exhibited antimicrobial activity after UV irradiation, indicating that UV irradiation did not affect the antimicrobial activity (Iturriaga et al ., 2014).…”