Production of Omega-3 Fatty Acid Concentrates from Common Kilka Oil: Optimization of the Urea Complexation Process.

There has been an increase in interest in the application of ω-3 PUFAs, especially EPA and DHA, in the development of various food products owing to their myriad health benefits. However, most fish oils do not contain more than 30% combined levels of EPA and DHA. In this study, through the urea complexation procedure, the production of EPA and DHA concentrate in their free fatty acids (FFAs) form was achieved from an enzymatic oil extracted from common kilka ( caspia).

Beeswax: A review on the recent progress in the development of superhydrophobic films/coatings and their applications in fruits preservation.

Recently, the design and fabrication of bio-inspired superhydrophobic materials using natural lipid additives such as beeswax (BW) have aroused great attention in food packaging as they can minimize the transfer rate of water molecules and have effective moisture barriers. This review discusses the recent progress in the design and fabrication of BW-containing edible films/coatings (e.g.

Facile fabrication of transparent high-barrier poly(lactic acid)-based bilayer films with antioxidant/antimicrobial performances.

Poly(lactic acid) (PLA) has been intended as an encouraging biopolymer for packaging purposes. Nevertheless, PLA-based films suffer from low gas barrier properties, which restrict their applications. Here, we report a facile fabrication of multi-component coating via layer deposition of cinnamaldehyde (CIN)-doped chitosan/poly(vinyl alcohol)/fish gelatin (CPF) on PLA surfaces.

Cubosomes and Hexosomes as Novel Nanocarriers for Bioactive Compounds.

Cubosomes and hexosomes are nanostructured liquid crystalline particles, known as biocompatible nanocarriers for drug delivery. In recent years, there has been good interest in using cubosomes and hexosomes for the delivery of bioactive compounds in functional foods. These systems feature thermodynamic stability, encapsulate both hydrophobic and hydrophilic substances, and have a high tolerance to environmental stresses and potential for controlled release.

Polyelectrolytes-stabilized liposomes for efficient encapsulation of Lactobacillus rhamnosus and improvement of its survivability under adverse conditions.

To improve the survivability of Lactobacillus rhamnosus probiotics, nanoliposomes (NLs) coated with chitosan (CH)-gelatin (GE) polyelectrolytes have been synthesized and characterized. The produced CH-GE-coated NLs containing L. rhamnosus had mean sizes in the range of 134.

Enhanced physicochemical stability of ω-3 PUFAs concentrates-loaded nanoliposomes decorated by chitosan/gelatin blend coatings.

To enhance the physicochemical stability of ω-3 PUFAs concentrates from fish oil, biopolymer coating based on chitosan (CH) and gelatin (GE) deposited on the surface of nanoliposomes (NLs) has been synthesized and characterized. The mean particle size of surface-decorated nanoliposomes (SDNLs) containing ω-3 PUFAs concentrates was found to be in the range of 209.5-454.

Bioactive functional ingredients from aquatic origin: a review of recent progress in marine-derived nutraceuticals.

There is increasing demand from consumers for healthier and more sustainable foods. The marine biosphere is a rich source of health-promoting substances like bioactive peptides, polysaccharides, polyunsaturated lipids, carotenoids, polyphenolic compounds, minerals, saponins, and phytosterols. These substances display a myriad of potentially beneficial biological functions including antioxidant, antimicrobial, anticancer, anti-diabetic, anti-obesity, anti-Alzheimer, anti-fibrotic, neuroprotective, sleep-enhancing, lipid-lowering, wound healing, and skin protection activities.

Viability improvement of Bifidobacterium animalis Bb12 by encapsulation in chitosan/poly(vinyl alcohol) hybrid electrospun fiber mats.

For the improvement of the probiotics' viability, a novel nanofiber mats consisting of chitosan (CS)/poly(vinyl alcohol) (PVA) loaded with the probiotic Bifidobacterium animalis subsp. lactis Bb12 and inulin (INU) as a prebiotic were fabricated via electrospinning approach. Scanning electron microscopy revealed that cells were well encapsulated in nanofibers with a diameter ranging from 117.

Electrospun essential oil-doped chitosan/poly(ε-caprolactone) hybrid nanofibrous mats for antimicrobial food biopackaging exploits.

Development of antimicrobial electrospun nanofibrous mats is one of the most recent trends in the field of food biopackaging. Herein, novel antimicrobial fibrous mats consisting of blend electrospun chitosan (CS)/poly(ε-caprolactone) (PCL) embedded with oregano essential oil (OEO) were fabricated via electrospinning approach and investigated. FE-SEM manifested that as-spun fibers were well-oriented with uniform diameters along their lengths, and AFM displayed the dense nature of the fibrous mats, with surface roughness in the range of 62.

Chitosan/sodium tripolyphosphate nanoparticles as efficient vehicles for antioxidant peptidic fraction from common kilka.

Fish-purified antioxidant peptide (AOP)-loaded chitosan nanoparticles (CSNPs) were synthesized based on the ionotropic gelation between CS and sodium tripolyphosphate (TPP). The ζ-potential showed an earlier rise and later decrease with increasing concentrations of AOP. Transmission electron microscopy (TEM) images also revealed roughly uniform spherical-shaped nanoparticles with diameter of <100 nm.

Nano-liposomal entrapment of bioactive peptidic fraction from fish gelatin hydrolysate.

This study guided the potential of nanoliposomal vesicles for the encapsulation of an active peptidic fraction from the fish skin gelatin by enzymatic hydrolysis using alcalase. The average particle size of peptide-loaded nanoliposomes was found to be in the range 134-621nm, with a ζ-potential of 0.06-8.

Biopolymer-coated nanoliposomes as carriers of rainbow trout skin-derived antioxidant peptides.

In this study, an antioxidant peptide fraction with a molecular mass<30kDa (PF30) isolated from rainbow trout (Oncorhynchus mykiss) skin gelatin hydrolysates was encapsulated in chitosan-coated nanoliposomes. The mean particle size of liposomal nanovesicles containing PF30 was found to be in the range 163.4-234nm with a low polydispersity index (PDI<0.

Physico-chemical and microstructural properties of fish gelatin/agar bio-based blend films.

This study was conducted with the aim of improving the physico-chemical properties of fish gelatin (FG) based films. For this purpose, FG was blended with agar (AG) in different compositions to acquire biodegradable films (100:0, 80:20, 60:40, 50:50 & 0:100, FG:AG). The obtained results showed that the AG addition strongly increased the film rigidity and resistance to fracture, while reducing the film stretchability, mainly at 50FG: 50AG ratio.

Efficient gas barrier properties of multi-layer films based on poly(lactic acid) and fish gelatin.

Multi-layer film structures of poly(lactic acid) (PLA) and fish gelatin (FG), prepared using the solvent casting technique, were studied in an effort to produce bio-based films with low oxygen (OP) and water vapor permeability (WVP). The scanning electron microscopy (SEM) images of triple-layer film showed that the outer PLA layers are being closely attached to the inner FG layer to make continuous film. The OP of multi-layer film (5.

Development of bioactive fish gelatin/chitosan nanoparticles composite films with antimicrobial properties.

The objective of this work was to develop active bio-based nanocomposite films from fish gelatin (FG) and chitosan nanoparticles (CSNPs) incorporated with Origanum vulgare L. essential oil (OEO). CSNPs were obtained by ionic gelation of chitosan with sodium tripolyphosphate, which presented a spherical morphology with size range of 40-80nm.

Two-step method for encapsulation of oregano essential oil in chitosan nanoparticles: preparation, characterization and in vitro release study.

In this study, oregano essential oil (OEO) has been encapsulated in chitosan nanoparticles by a two-step method, i.e., oil-in-water emulsion and ionic gelation of chitosan with sodium tripolyphosphate (TPP).

Preparation and functional properties of fish gelatin-chitosan blend edible films.

With the goal of improving the physico-chemical performance of fish gelatin-based films, composite films were prepared with increasing concentrations of chitosan (Ch) (100G:0Ch, 80G:20Ch, 70G:30Ch, 60G:40Ch and 0G:100Ch, gelatin:Ch), and some of their main physical and functional properties were characterised. The results indicated that the addition of Ch caused significant increase (p<0.05) in the tensile strength (TS) and elastic modulus, leading to stronger films as compared with gelatin film, but significantly (p<0.

Contamination by organochlorine compounds in the edible tissue of four sturgeon species from the Caspian Sea (Iran).

This study focused on accumulation of organochlorine compounds (OCs), including dichloro-diphenyl-trichloroethanes (DDTs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), and polychlorinated biphenyls (PCBs) accumulation in the muscle of four sturgeon (Persian sturgeon, Acipenser persicus; Stellate sturgeon, Acipenser stellatus; Ship sturgeon, Acipenser nudiventris and Beluga sturgeon, Huso huso) from the southern Caspian Sea. The DDT group was prominent in all of the sturgeon muscle tested constituting almost half or more of the total organochlorine content. Contaminant concentration generally followed this order: DDTs>PCBs>HCHs>HCB.