scholarly journals Edible Biopolymers-Based Materials for Food Applications—The Eco Alternative to Conventional Synthetic Packaging

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3779
Author(s):  
Roxana Gheorghita Puscaselu ◽  
Irina Besliu ◽  
Gheorghe Gutt
Keyword(s):  
Sodium Alginate ◽  
Industrial Waste ◽  
Packaging Material ◽  
Food Supplements ◽  
High Luminosity ◽  
Casting Method ◽  
Synthetic Materials ◽  
Average Transmittance ◽  
Food Applications ◽  
Homogeneous Film

The problem of waste generated by packaging obtained from conventional synthetic materials, often multilayer, has become more and more pressing with increasing consumption. In this context, nature and humanity have suffered the most. In order to address this phenomenon, global and European organizations have launched and promoted programs and strategies. Replacing petroleum-based packaging with biopolymer packaging has proven to be a real alternative. Thus, the substitution of plastics with biodegradable, non-toxic, edible materials, which can be obtained from marine or agro-industrial waste, is of interest. In the present study, we aimed to develop natural edible materials, obtained entirely from biopolymers such as agar and sodium alginate and plasticized with glycerol and water. Designed to be used for food and food supplements packaging, they can be completely solubilized before consumption. The films were developed through a casting method and were tested in order to identify the physical, optical, and solubility properties. According to the results, the most suitable composition for use as a hydrosoluble packaging material contains agar:alginate:glycerol in a 2:1:1 ratio. The microstructure indicates a homogeneous film, with low roughness values (Rz = 12.65 ± 1.12 µm), high luminosity (92.63), above-average transmittance (T = 51.70%), and low opacity (6.30 A* mm−1). The obtained results are of interest and highlight the possibility of substituting intensely polluting materials with those based on biopolymers.

scholarly journals Pectin-Based Films Loaded with Hydroponic Nopal Mucilages: Development and Physicochemical Characterization

Coatings ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 467
Author(s):  
Brenda Luna-Sosa ◽  
Guillermo C.G. Martínez-Ávila ◽  
Humberto Rodríguez-Fuentes ◽  
Ana G. Azevedo ◽  
Lorenzo M. Pastrana ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Physicochemical Characterization ◽  
Packaging Material ◽  
Casting Method ◽  
Water Contact ◽  
Vapour Permeability ◽  
Visual Appearance ◽  
Potential Source ◽  
Food Applications ◽  
Potential Use

Nopal is a potential source of mucilage that can be used in different food applications. One of its potential use is the development of films and coatings where it can act as a packaging material but also as a source of bioactive compounds. Therefore, this work aimed to develop and characterize pectin-based films loaded with mucilage extracted from two species of nopal, Copena F1 (Cop) and Villanueva (Vi). The obtained mucilages were denominated as materials without fibre (Copwtf and Viwtf) and with fibre (Copwf and Viwf), according to the fibre’s size. Films were produced with pectin (2% w/v), mucilage (2.5% w/v) and glycerol (0.5% w/v) by the casting method. The addition of mucilages was shown to influence the visual appearance, optical properties and morphology of the films. The presence of mucilage also changed the moisture content, water contact angle and water vapour permeability of the films. The pectin-based films without mucilage presented the best mechanical properties. Fourier-transform infrared (FTIR) spectroscopy showed similar signals in terms of frequency and intensity, for all the films, not showing any chemical modification. Results show that the mucilage obtained from different nopal fractions can be used in pectin-based films foreseeing their use as films or coatings in food applications.

Preparation and Characterization of Starch/PVA Blend for Biodegradable Packaging Material

2010 ◽  
Vol 123-125 ◽  
pp. 351-354 ◽  
Author(s):  
Fahmida Parvin ◽  
Md. Arifur Rahman ◽  
Jahid M.M. Islam ◽  
Mubarak A. Khan ◽  
A.H.M. Saadat
Keyword(s):  
Mechanical Properties ◽  
Packaging Material ◽  
Rice Starch ◽  
Packaging Materials ◽  
Casting Method ◽  
Environment Friendly ◽  
Elongation At Break ◽  
Biodegradable Packaging ◽  
Soil And Water

Polymer films of rice starch/Polyvinyl alcohol (PVA) were prepared by casting method. Different blends were made varying the concentration of rice starch and PVA. Tensile strength (TS) and elongation at break (Eb) of the prepared films were studied. Films made up of rice starch and PVA with a ratio of 2:8 showed highest TS. 10% sugar was added with highest TS giving four composition of Starch/PVA blend in order to increase TS and Eb. Films made up of rice starch and PVA and sugar with a ratio of 1:8:1 showed highest TS and Eb and the recorded value was 14.96MPa and 637% respectively. The physico-mechanical properties of the prepared sugar incorporated films were improved by grafting with acrylic monomer with the aid of UV radiation. A formulation was prepared with monomer, methylmethacrylat in methanol, and a photo initiator. The highest TS of the grafted films were recorded and the value was 16.38 MPa. The water uptake and weight loss in both soil and water of the grafted films are lower than the non-grafted films. The prepared films were further characterized with stereo micrograph and XRD. Finally, the produced film can be used as biodegradable packaging materials for shopping and garbage bags that are very popular and environment friendly.

scholarly journals Control of Drug Dissolution Rate from Film Dosage Forms Containing Valsartan

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Yoshifumi Murata ◽  
Kyoko Kofuji ◽  
Chieko Maida
Keyword(s):  
Dissolution Rate ◽  
Sodium Alginate ◽  
Antihypertensive Drug ◽  
Alginic Acid ◽  
Dosage Forms ◽  
The Other ◽  
Drug Dissolution ◽  
Dissolution Medium ◽  
Casting Method ◽  
Initial Dissolution Rate

Film dosage forms (FDs) containing valsartan (VST), a popular antihypertensive drug, were prepared using a casting method with sodium alginate and other polysaccharides as the film base. Drug dissolution profiles of the FDs were investigated in limited medium. The FDs were 170–200 μm thick and were easy to handle. All FDs immediately swelled and disintegrated in the medium. About 23% of the VST incorporated into the FD prepared with 1.5% sodium alginate dissolved at 5 min. The initial dissolution rate of VST increased upon the addition of chitosan to the film base; this effect was not observed in the case of chitin. On the other hand, the rate apparently decreased upon modification with alginic acid. In addition, the solubility of VST in the dissolution medium was changed by the addition of chitosan or alginic acid. FDs prepared with polysaccharides are useful for simplifying the administration of drugs to patients, and the drug dissolution rate from FDs can be controlled by modification.

scholarly journals Active Biopolymeric Films Inoculated with Bdellovibrio bacteriovorus, a Predatory Bacterium

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 605
Author(s):  
Christian Mariel Sáenz-Santos ◽  
Omotayo Opemipo Oyedara ◽  
Yunia Verónica García-Tejeda ◽  
Claudia A. Romero-Bastida ◽  
Esperanza Milagros García-Oropesa ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Escherichia Coli ◽  
Ftir Spectroscopy ◽  
Sodium Alginate ◽  
Polymeric Films ◽  
Casting Method ◽  
Scanning Calorimetry ◽  
Bdellovibrio Bacteriovorus ◽  
Tapioca Starch ◽  
Scanning Electron

The objective of the present work was to evaluate novel active films made with biopolymeric matrices as carriers of a living Bdellovibrio bacteriovorus HD100 strain, a predatory bacterium with antimicrobial potentials against pathogens. Biopolymer films were prepared by a casting method using the following mixtures: collagen/sodium alginate/sorbitol (CA-S), collagen/sodium alginate/glycerol (CA-G), and tapioca starch/sodium alginate/glycerol (StA-G). The effects of the film formulations on the viability of the B. bacteriovorus was investigated by using Fourier Transform Infrared (FTIR) spectroscopy, Differential Scanning Calorimetry (DSC), and Scanning Electron Microscopy (SEM). SEM showed that Bdellovibrio bacteriovorus morphology was not altered in the polymeric films. FTIR spectroscopy provided information about the structural composition of the films. CA-S showed less reduction in the viability of B. bacteriovorus after its entrapment; thus, CA-S proved to be a better agent for the immobilization and preservation of B. bacteriovorus to enhance its predatory activities during application against Escherichia coli.

Biocompatibility of Alginate -Graphene Oxide Film for Tissue Engineering Applications

2021 ◽  
Vol 900 ◽  
pp. 26-33
Author(s):  
Ishraq Abd Ulrazzaq Kadhim
Keyword(s):  
Tissue Engineering ◽  
Graphene Oxide ◽  
Sodium Alginate ◽  
Cell Lines ◽  
In Vitro Test ◽  
Solvent Casting ◽  
Ftir Analysis ◽  
Casting Method ◽  
Vitro Test

The present paper indicates promising potential of Sodium Alginate) Alg)/Graphene oxide (Go) films in fields bone tissue engineering (TE). The Sodium Alginate (Alg)/Graphene oxide (Go) films, were fabricated via (solvent casting method). The interaction of Sodium Alginate (Alg) with Graphene oxide (Go) via hydrogen bonding was confirmed by FTIR analysis. The swelling degree of Sodium Alginate (Alg)/Graphene oxid (Go) films was also studied. Furthermore, the biocompatibility of Sodium Alginate (Alg)/Graphene oxide (Go) films disclosed its non-cytotoxic effect on the cell lines (MG-63) in-vitro test, the viability of cell lines on the films, and hence its appropriateness as potent biomaterial for tissue engineering.

Production of Biomass Fiber Packaging Material by Microwave Foaming Method

2018 ◽  
Vol 916 ◽  
pp. 115-119 ◽  
Author(s):  
Hao Sun ◽  
Yan Fen Cao ◽  
Ling Jun Wei ◽  
Jing Qian ◽  
Li Qiang Wang ◽  
...  
Keyword(s):  
Industrial Waste ◽  
Raw Materials ◽  
Packaging Material ◽  
Wood Chips ◽  
Packaging Materials ◽  
Low Density ◽  
Waste Wood ◽  
Environmental Material ◽  
Sludge Waste ◽  
Paper Fibers

In recent years, the production and application of plastic planting tray is subject to more restrictions, many scholars at domestic and abroad are actively to develop biodegradable biomass packaging materials. Based on these analysis and summarization, make use of treated sludge, waste paper fibers and industrial waste wood chips as raw materials, adding other environmental protection additives to prepare a kind of biomass foaming material which has low quality, low density and good mechanical properties. Text result shows that it is feasible to use this method to make environmental material, and its density is 0.43g/cm3, the compressive strength is 10.64MPa.

scholarly journals Review of the Most Important Methods of Improving the Processing Properties of Starch toward Non-Food Applications

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 832
Author(s):  
Arkadiusz Zarski ◽  
Krzysztof Bajer ◽  
Janusz Kapuśniak
Keyword(s):  
Natural Environment ◽  
Packaging Material ◽  
Raw Material ◽  
Biodegradable Materials ◽  
Natural Polymer ◽  
Food Industries ◽  
The World ◽  
Physicochemical Features ◽  
Food Applications ◽  
Processing Properties

Starch is the second most abundantly available natural polymer in the world, after cellulose. If we add its biodegradability and non-toxicity to the natural environment, it becomes a raw material very attractive for the food and non-food industries. However, in the latter case, mainly due to the high hydrophilicity of starch, it is necessary to carry out many more or less complex operations and processes. One of the fastest growing industries in the last decade is the processing of biodegradable materials for packaging purposes. This is mainly due to awareness of producers and consumers about the dangers of unlimited production and the use of non-degradable petroleum polymers. Therefore, in the present review, an attempt was made to show the possibilities and limitations of using starch as a packaging material. The most important physicochemical features of this biopolymer are discussed, and special attention is paid to more or less environmentally friendly methods of improving its processing properties.

scholarly journals Bio-Based Packaging: Materials, Modifications, Industrial Applications and Sustainability

Polymers ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1558 ◽  
Author(s):  
Corina L. Reichert ◽  
Elodie Bugnicourt ◽  
Maria-Beatrice Coltelli ◽  
Patrizia Cinelli ◽  
Andrea Lazzeri ◽  
...  
Keyword(s):  
Surface Modification ◽  
Industrial Applications ◽  
Packaging Material ◽  
Packaging Materials ◽  
Holistic View ◽  
Consumer Concerns ◽  
Synthetic Materials ◽  
Polybutylene Succinate ◽  
Life Options ◽  
Scientific Results

Environmental impacts and consumer concerns have necessitated the study of bio-based materials as alternatives to petrochemicals for packaging applications. The purpose of this review is to summarize synthetic and non-synthetic materials feasible for packaging and textile applications, routes of upscaling, (industrial) applications, evaluation of sustainability, and end-of-life options. The outlined bio-based materials include polylactic acid, polyethylene furanoate, polybutylene succinate, and non-synthetically produced polymers such as polyhydrodyalkanoate, cellulose, starch, proteins, lipids, and waxes. Further emphasis is placed on modification techniques (coating and surface modification), biocomposites, multilayers, and additives used to adjust properties especially for barriers to gas and moisture and to tune their biodegradability. Overall, this review provides a holistic view of bio-based packaging material including processing, and an evaluation of the sustainability of and options for recycling. Thus, this review contributes to increasing the knowledge of available sustainable bio-based packaging material and enhancing the transfer of scientific results into applications.

scholarly journals EVALUATION OF A NEW BIO-BASED-FLOCULANT EXTRACTED FROM WATER-MELON, ON THE REMOVAL OF LEAD IONS FROM WATER

2020 ◽  
Vol 5 (11) ◽  
pp. 42-48
Author(s):  
M. Dinne ◽  
S. Alahiane ◽  
A. Sennaoui ◽  
F. Sakr ◽  
F.Byoud ◽  
...  
Keyword(s):  
Drinking Water ◽  
Comparative Study ◽  
Sodium Alginate ◽  
Sedimentation Rate ◽  
Industrial Waste ◽  
Experimental Results ◽  
Lead Ions ◽  
Coagulation And Flocculation ◽  
Flocculation Process ◽  
Water Melon

The current study, aims to eliminate lead ions in drinking water or industrial waste, by the coagulation and flocculation process, adopting a coupling of NaOH with a new bioflocculant "BFM" extracted from the crust and fruit of a variety of melon named "Pineapple". The removal process was tested on 100mg / l samples of pb2 + ions, as a function of pH, NaOH and "BFM" doses. the experimental results gave an elimination efficiency which reaches about 99% for a pH 11, and a dose of "BFM" of 1 mg / l. A comparative study of the sedimentation rate between our bio-flocculant and a commercial flocculant "sodium alginate" showed a very competitive performance of "BFM".

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