Two hydrolysates were obtained from dried Mastocarpus stellatus using alcalase. The phenolic content was partially removed from one of them. The phenolic-partially-removed hydrolysate (H) was found to be a potent angiotensin-I converting enzyme (ACE) inhibitor. However, the phenolic-containing hydrolysate (Hp) showed a higher Folin-reactive substance content and antioxidant capacity (reducing p...

Edible coatings were prepared with 1% (w/v) chitosan (CH) incorporated 0.05%, 0.25%, or 0.5% tea seed oil (TSO). The physicochemical properties and antifungal ability on Botrytis cinerea (B. cinerea) of the films investigated. CH TSO applied to preserve pears (Pyrus pyrifolia Nakai) then fungal decay, respiration rate, other characters determined throughout storage at 25 °C 85 ± 5% relative hum...

This study investigates the effects of incorporating green and chemical magnetic iron oxide nanoparticles (GMIONPs CMIONPs, respectively) into poly(ε-caprolactone) (PCL) nanofibrous membranes on their physicochemical, mechanical, morphological, functional properties. The evaluates physicochemical optical properties using water contact angle (WCA), vapor permeability (WVP), brightness, color det...

The aim of this study was to evaluate a new packaging system in which the paper covered with solution sodium alginate and cinnamon essential oil (CEO) that used as for burger beef. papers were characterized their physical, optical, mechanical, sorption properties. In addition, burgers evaluated antioxidant activity, lipid oxidation, color difference. total, four treatments developed: Con: witho...

The effect of squid ink tyrosinase (SIT) and tannic acid (TA) on the properties of myofibrillar protein films from washed sardine mince was studied. The film made from film forming solution added with SIT (5 k units L-1) and TA (1 g L1) had the highest tensile strength (TS) (9.49 ± 0.11 MPa) but lowest elongation at break (EAB) (25.91 ± 1.81%) (P<0.05). The addition of mixture of SIT and TA red...

Free films were obtained by the solvent casting method from retrograded starch-pectin dispersions at different polymer proportions and concentrations with and without plasticizer. Film forming dispersions were characterized according to their hardness, birefringence and rheological properties. The polymer dispersions showed a predominantly viscous behavior (G″>G') and the absence of plasticizer...

The antimicrobial, mechanical, physical and structural properties of chitosan-gallic acid films. Manuscript version of a work that was subsequently published in LWT – Food Science and Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may ...

The nonbiodegradable and nonrenewable nature of plastic packaging has led to a renewed interest in packaging materials based on bio-nanocomposites (biopolymer matrix reinforced with nanoparticles such as layered silicates). Bio-nanocomposite films based on soy protein isolate (SPI) and modified montmorillonite (MMT) were prepared using melt extrusion. The effect of different type (Cloisite 20A ...

Poor water-vapor barriers and mechanical properties are common problems of biobased films. To maintain food quality, the barrier its strength performance need to be improved. Tea polyphenols (TP) a natural active substance, their benzene ring structure provides for them as film material. Films that incorporate TP also have enriched functionalities, e.g., antioxidants. Here, poly (vinyl alcohol)...