Starch in Sustainable Packaging

Starch-based films with improved properties for packaging applications. The films have a starch composition with a high peak cold viscosity (>700 mPa·s) and high degree of cook (>90%). The starch composition can contain chemically modified starches, polyvinylalcohol, polyoxyethylene, and hydrophilically modified layered silicate clay. The films have low haze, good impact strength, and long-term gas barrier properties.

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Films for packaging foodstuffs that can be made from a combination of polysaccharides like starch and plant proteins like pea protein. The films have properties suitable for food packaging like robustness, but they can also disperse in water. The plant protein is pretreated with organic acids to enable it to be incorporated with the polysaccharide. This mitigates the limitations of using just polysaccharides like starch for packaging. The films have a weight ratio of polysaccharide to protein in the range 0.1:1 to 2:1. The protein is pretreated with organic acids to make it more compatible with the polysaccharide.

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The study's goal is to prepare bioplastic by corn starch environmentally favorable. Corn Water, gelatin, glycerin, a food coloring coconut oil, and cotton were used make bioplastic. data demonstrate that biodegradable, with an average weight loss of 57.9%. It was partially soluble in ethanol water but totally HCl. Swelling test showed no change when immersed chloroform, slight water. degrades more quickly as temperatures rise. thermodynamic parameters results the activation energy Ea 36.5 Jmol-1,the positive values Gibbs energy, entropy S had suggesting non-spontaneous less organized structure behavior negative H value indicating exothermic nature.The rate kinetic rises concentration increased. manufactured possesses features such minimum swelling insoluble will be making it commercially feasible renewable resource.

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Accumulation of waste food materials, such as cassava and shrimp peels, continues to contribute rise in greenhouse emissions. This study aims produce a bioplastic film made from extracted peel starch (CPS) shell chitosan (SSCHT), plasticized with sorbitol (SOR) using constrained D-optimal mixture design. Films were assessed terms tensile strength, elongation at break, contact angle, opacity, functional groups. Significant models generated strength (p = 0.0148), angle 0.1049) opacity 0.6529). Cassava had significant < 0.001) effect on due hydrogen bonding chitosan, whereas break was significantly 0.0017) affected by its structural similarity larger molecular weight compared glycerol. Contact increased the incorporation 0.4647) minimizing hydrophilic regions for external water molecule penetration. Opacity 0.0013) reduced refraction swollen granules. Fourier-Transform Infrared Spectroscopy (FTIR) verified interactions CPS/SSCHT/SOR film, while thermogravimetric analysis (TGA) provided insights thermal stability industrial use. provides insight into potential valorization green extra... Read More

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Highly-filled, high-performance thermoplastic cellulose acetate compositions with improved processability and biodegradability for applications like food packaging. The compositions contain cellulose acetate, plasticizers, and an organic peroxide additive. The peroxide lowers the glass transition temperature of the cellulose acetate without degrading it, enabling melt processing. The compositions have high melt flow and can contain fillers like biocarbon, minerals, and starches. The biodegradability is maintained due to the peroxide facilitating filler dispersion and adhesion. The compositions can be made into articles like food packaging and cutlery.

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As the global plastic pollution problem intensifies and environmental hazards of traditional petroleum-based plastics become increasingly significant, development sustainable alternative materials has an urgent need. This paper systematically reviews research progress, application status future trends new generation bioplastics in field food packaging. Bioplastics are categorized into three main groups according to their sources degradability: biobased biodegradable (e.g., polylactic acid PLA, polyhydroxy fatty ester PHA, chitosan, cellulose-based materials); non-biodegradable Bio-PE, Bio-PET); non-biobased PBAT, PCL, PBS). Different processing technologies, such as thermoforming, injection molding, extrusion molding coating can optimize mechanical properties, barrier properties freshness retention promote scenarios containers, films smart Although still face challenges terms cost, degradation conditions industrial support, promising directions found large-scale utilization non-food raw agricultural waste, algae), nano-composite technology enhance performance, intelligent packaging f... Read More

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A synthesized glyoxylate starch composition that can be used as a natural, biodegradable paper strength agent. The glyoxylate starch is made by reacting starch with chloroacetamide to form a modified starch, then reacting that with glyoxal to create the glyoxylate starch. It can be added to paper pulp during manufacturing to improve wet and dry strength properties.

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Starch films were obtained by solvent casting and thermoprocessing using glycerol as a plasticiser from new starch source: tiger nut waste horchata production. The (TNS) showed barrier capacity to water vapour gases in the typical range of other films, such corn (CS) with high oxygen. tensile properties affected processing method, exhibiting higher stiffness resistance break lower stretchability than more common CS films. Thermoprocessed TNS less soluble their solubility was that cast However, all exhibited similar swelling power. Thermal stability also for showing thermal degradation pattern starchglycerol Therefore, production can be used obtain thermoplastic packaging applications, characteristics comparable most

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Edible container made from upcycled ingredients that can hold hot liquids like boiling water for extended periods without leaking. The container is made from a dough of brewers spent grain, upcycled oat protein, and starch that is baked into shape. It contains natural materials that are safe to eat and can be used as an alternative to disposable containers. The upcycled ingredients are brewers spent grain, oat protein, and starch. The container can be molded into different shapes and sizes without requiring a separate coating process.

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Biodegradable resin composition for films with improved biodegradability and barrier properties. The composition contains thermoplastic starch, a biodegradable polymer with high melt flow index (>30 g/10 min), and a plasticizer. The biodegradable polymer content is 30% or less. This provides enhanced biodegradability without sacrificing film properties like gas barrier and processability. The composition can be used to make biodegradable films with improved barrier properties compared to pure starch films.

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Low opacity, biodegradable, and heat-sealable paper made from cellulose fibers coated with a bio-based wax to reduce opacity and improve barrier properties. The paper has a base sheet of refined softwood cellulose fibers with a basis weight of 10-25 g/m2. It is coated with a transparency agent like a coconut-based wax and a heat-sealable coating like a thermoplastic starch or protein. The coated paper has opacity less than 35% and can be used for packaging without supercalendering.

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Coating packaging materials like paper and cardboard with a thixotropic aqueous mixture to improve barrier properties like reducing gas and moisture transfer through the material. The coating composition contains smectite clay, a water-soluble polymer, and a cross-linking agent that links the clay to the polymer. Applying the mixture to a surface and heat treating crosslinks the clay-polymer barrier. This provides coated packaging with improved barrier properties for replacing single-use plastic in produce shipping.

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Biodegradable nanocomposite food packaging films that provide enhanced antimicrobial and oxidation inhibition properties to prevent spoilage and pathogen growth. The films are made by incorporating biosynthesized zirconium nanoparticles capped with a bioactive compound called Arachisan derived from peanut leaves. The ArZrNPs provide antimicrobial activity against food-borne pathogens like Salmonella and E. coli. They also scavenge free radicals to prevent oxidation. The nanoparticles are dispersed in biodegradable polymer films for sustainable packaging with extended shelf-life and reduced pathogen risk.

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Eco-friendly and biodegradable packaging materials made from sugarcane bagasse that are sustainable, flame retardant, mechanically robust, thermally stable, and have low environmental impact compared to plastic alternatives. The process involves delignifying the bagasse, phosphorylating it, homogenizing, sonicating, casting, freezing, and freeze-drying to create films, aerogels, boards, boxes, plates, and sheets. The phosphorylation step enhances the properties like solvothermal stability, degradation resistance, and flame retardancy.

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A packaging unit with oxygen and moisture barrier properties for long-term storage of food products without compromising the product quality. The packaging unit has a tubular shape with a removable closure. The packaging body and closure are made of paper with high cellulose content and barrier layers against oxygen and moisture. This provides a sustainable and compostable packaging option with extended shelf life for sensitive foods. The paper-based construction reduces environmental impact compared to plastic, while the barrier layers prevent oxidation and moisture absorption. The tubular shape provides shock absorption.

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A sustainable packaging method that replaces plastic bubble wrap with paper-based packaging articles that have similar cushioning properties. The method involves continuously supplying Kraft paper with a minimum machine direction stretch of 5% at temperatures between 10-40°C. The paper is plastically deformed to form a structured layer with embossments or flutes. This layer is then joined with a flat cover layer to create a compound layer that forms the packaging article. The paper-based packaging has a similar cushioning effect as bubble wrap but without requiring high temperatures or moisture for deformation. The packaging can be formed into envelopes, boxes, etc.

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Eco-friendly packaging composition made from fried food waste, biomass, and a solvent. The composition can be molded into 3D structures and used as a sustainable packaging alternative. The fried food waste provides a binding agent, the biomass adds strength, and the solvent helps mix it all together. The composition is derived from fried food scraps, like oil-rich crumbs, and uses biodegradable materials to reduce environmental impact compared to traditional petroleum-based plastics.

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Eco-friendly cushioning packaging material made from natural pulp like sugarcane and bamboo instead of plastic or wood pulp. The packaging material is manufactured by processing paper made from the natural pulp. To reduce dust generation from the short fibers of sugarcane pulp, a small amount of bamboo pulp is added during fabric production. The paper surface is coated with starch and biodegradable wax to improve strength and water resistance. This allows replacing traditional plastic cushioning materials with a more sustainable option that reduces plastic usage, carbon emissions, and environmental pollution.

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Eco-friendly bioplastic nutrient packaging containers that are fully biodegradable and made from renewable resources. The containers are produced using bioplastic materials like polylactic acid, succinate-based aliphatic polyesters, and cellulose-based bioplastics. The containers have improved processability compared to previous bioplastics, allowing them to be manufactured using blow molding and extrusion methods. The containers are designed to be fully biodegradable in the natural environment, reducing environmental impact compared to traditional petroleum-based plastics.

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Product packaging material with high paper content and transparency to reduce plastic use. The packaging has a pouch formed between a main sheet of unlaminated paper and a transparent front sheet made of either film or cellophane. They are bonded together using water-based adhesive. The paper weight in the packaging exceeds 50% or 60% to increase recyclability. The transparent front allows product visibility while reducing plastic content compared to fully plastic packaging.

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Smart food packaging film containing modified oat starch, betalain, and cellulose nanofibers that can monitor food spoilage without using synthetic pigments. The film is made by extracting starch from oats, treating it in subcritical water, extracting betalain from beet peels, mixing with cellulose nanofibers, and drying. The modified oat starch has higher solubility and lower crystallinity compared to natural oat starch, allowing better dispersion with betalain. The cellulose nanofibers reduce betalain temperature sensitivity. The film contains betalain instead of synthetic pigments for color without harming food.

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Paper-based plastic packaging material and a pouch-shaped container made from it. The packaging material replaces aluminum and synthetic polymers in conventional packaging to reduce environmental impact. It uses paper as the main barrier layer, along with a thin plastic layer on one side. The paper provides moisture and oxygen blocking, while the plastic adds strength and sealability. The paper-plastic-paper structure allows barrier properties comparable to aluminum packaging without the recycling issues. The paper-based plastic pouch container can be used for products like food, pharmaceuticals, and cosmetics.

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A recyclable paper-based packaging film for hygiene products like diapers and sanitary pads that can be easily recycled along with paper waste. The film has a thin coating layer made of biopolymers and vegetable waxes applied to a paper substrate. The coating provides barrier properties to prevent contact between external agents and internal components. The paper-based film can be formed into different packaging shapes like box pouches and pouches with angled bottoms, unlike conventional polymer-based packaging. The recyclability and versatility of the paper-based film make it an environmentally friendly alternative to polymer films.

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Molded fiber packaging that is suitable for wet products without using excessive plastic. The packaging is made by wet molding a fiber material like recycled paper or cardboard. To make it waterproof, the molded fiber is coated with a thin layer of hydrophobic material. This prevents water absorption and keeps the contents dry. The hydrophobic coating can be applied using techniques like spraying, dipping, or roller coating. The coated molded fiber packaging provides water resistance without adding plastic layers or inserts, reducing waste and simplifying recycling.

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Biodegradable packaging material for dairy products made from sugarcane bagasse, a waste byproduct from sugar production. The packaging is coated with a bioplastic made from polylactic acid (PLA) and polybutylene adipate-co-terephthalate (PBAT) to prevent reaction with dairy products. The coating allows the bags to be reused after washing. The bioplastic is made from biodegradable materials like starch and glycerol. The uncoated bagasse has low moisture and water absorption. The coated bags have reduced moisture and water absorption compared to the uncoated bags.

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Enriched edible films for primary food packaging made from waste fruit peels like banana and jackfruit peels, to replace non-biodegradable plastics and foils. The films are made by extracting nutrients like antioxidants, vitamins, and minerals from the fruit peels, then combining them with biopolymers to create edible films that can be used as primary packaging for food. This provides a sustainable and nutritious alternative to plastic wraps, reduces waste, and enhances the nutritional value of packaged foods.

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Custom product packaging made entirely of corrugated cardboard and biodegradable foam without adhesives or tape. The foam is adhered directly to the corrugated surface by heating the corrugated area and pressing the foam against it. The foam used is made of polylactic acid (PLA) which bonds strongly to the heated cardboard. This allows customizable foam protection without additional adhesives or tape. The packaging is fully compostable and reduces waste compared to conventional packaging with separate foam and cardboard pieces held together with adhesives.

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Biodegradable food packaging film made from natural polymers like guar gum, agar-agar, and beeswax. The film has excellent oxygen barrier properties to maintain freshness and shelf life of food products. It also has low water vapor permeability, good mechanical strength, and contact angle greater than 90 degrees. The biodegradable film reduces environmental impact compared to traditional plastic packaging. The film is prepared by dissolving guar gum and agar-agar in water, adding beeswax, and spreading the solution onto a substrate to dry into the film.

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Bioplastics made from agricultural waste like mango seeds, filled with chitosan or nanochitosan, for use as sustainable food packaging. The bioplastics have improved properties like reduced water vapor transmission, better mechanical strength, and antimicrobial activity compared to the pure mango seed bioplastic. The chitosan and nanochitosan fillers also reduced water uptake. The recommended bioplastics for food packaging are 20% CS-30% Sor-10% CA and 30% NCS-20% Sor-10% CA.

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A food-grade barrier coating for molded pulp products like bowls, trays, and containers that provides water and grease resistance. The coating is made by crosslinking shellac resin applied to the pulp. The crosslinking involves thermal aging in an oven to melt and fuse the shellac chains. This creates a durable, water-repellent coating that penetrates the pulp fibers. The coated pulp products have low cobb (water absorption) and kit (grease penetration) values, making them suitable for food packaging. The crosslinked shellac barrier meets food migration limits at elevated temperatures.

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A sustainable and biodegradable packaging material made from coating chitosan on dry banana leaves. The method involves spreading a chitosan-glycerol solution onto a banana leaf, letting it dry, and repeating on the other side. This creates a flexible, smooth, and biodegradable packaging material that can be used for food items. The chitosan coating provides strength and moisture barrier properties, while also degrading completely in soil within 15 days.

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Using sugarcane dry leaves as a packing material for boxes instead of plastic tape to provide an eco-friendly and sustainable alternative for packaging while also generating additional income for farmers. The dried sugarcane leaves are collected after harvest, cleaned, and then used to pack boxes by separating the leaves and securing them with a natural adhesive like gum acacia or wheat glue. This avoids burning the leaves, reduces pollution, and provides a reusable and biodegradable packing material.

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Packaging for planting that slowly releases nutrients and promotes plant growth. The packaging contains biodegradable polymers like polylactic acid (PLA) and compostable materials like starch. It can be used for applications like seedling containers, sowing tapes, and forest seedling pots. The PLA and compostable materials provide controlled nutrient release and biodegradability. The packaging can also contain additives like chitosan and seaweed extract to further enhance plant growth. The aim is to provide a sustainable, compostable alternative to conventional plastic packaging that promotes plant health and reduces waste.

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Biodegradable packaging material made from agricultural waste like wheat straw for extending the shelf life of food products. The packaging is produced by combining nanocellulose from wheat straw with acetylated arabinoxylan (AXAc) from wheat straw. Silver nanoparticles are also incorporated for antimicrobial properties. The composite films made from these materials have improved moisture barrier and antimicrobial properties compared to the original polysaccharides. This provides a biodegradable and sustainable alternative to traditional plastic packaging that reduces waste and environmental impact.

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A plastic-free packaging material with cushioning properties similar to bubble wrap, produced using a low-energy method. The packaging material has a structural layer with embossed areas made by permanently plastically deforming a base material like kraft paper. The embossed areas provide cushioning without adding thickness like bubble wrap. The paper is formed at room temperature to avoid energy-intensive processes. The embossed areas allow plastic deformation without tearing, providing dimensional stability.

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A packaging element and container for luxury and premium products that allows complex shapes while reducing environmental costs. The packaging element is made from wet-formed paper pulp instead of plastic. It has a molded seat shaped to fit the product. The paper pulp is pressed at temperatures between 20-300°C to create the molded seat. The paper element can be used in foldable or rigid packaging, covered with special materials, or printed. This avoids the energy-intensive drying step of thermoforming and allows complex shapes while using paper instead of plastic.

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Biodegradable and compostable bioplastic packaging made from local agricultural materials like fibers, oils, and essential oils. The packaging is cheap, biodegradable, and active due to the incorporation of essential oils. The process involves converting agricultural fibers like raffia, sisal, and pineapple into cellulose acetate. This is mixed with polylactic acid, edible oils, and essential oils, homogenized, and dried into film.

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Packaging element and method for producing it that allows complex shapes while maintaining structural integrity using paper-based materials. The packaging element has a seat shaped to fit the product and is made by forming a multilayer paper material in a mold at temperatures between 20-300°C. This allows complex shapes without tearing like traditional paper pulp molding methods. The molded paper packaging reduces environmental costs by eliminating plastic and energy compared to plastic packaging.

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Making bioplastics from renewable sources like palm starch and lignin without adding many fillers or additives. The bioplastics have properties like UV shielding, antioxidants, biodegradability, and mechanical strength. The method involves mixing the palm starch, lignin, glycerol, and water to make bioplastics that can be molded and dried.

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Biodegradable starch-based polymer composition with ionic liquid plasticizers for sustainable packaging. The composition involves blending native starch, biodegradable polyester, and an ionic liquid plasticizer to create a thermoplastic starch film that is stable under varying humidity conditions and has improved mechanical properties compared to traditional starch blends. The ionic liquid plasticizer prevents retrogradation and maintains stability even after storage. The composition offers an eco-friendly alternative to synthetic plastics for packaging applications.

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Biodegradable food packaging material made from natural components like plant extracts, graphene oxide, and calcium carbonate. The packaging has layers of paper, adhesive, and a coating. The base layer is made from a copolymer resin, polyethyleneimine, calcium carbonate, tourmaline powder, and plant extract. The adhesive layer contains PLA, lactic acid oligomer, PBAT, tetraethylene glycol diacrylate, sisal fiber, mineral oil, and plant oil. The coating layer is made from polyurethane acrylate resin, PLA, graphene oxide, plant extract, and plant oil. The packaging provides improved biodegradability, reduced oxygen permeability, and antibacterial function compared to conventional plastic packaging.

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Making biodegradable plastic films from food waste and food byproducts using a simple extraction and blending process. The method involves treating starchy foods like bananas, potatoes, or grains with an acid to extract the starch. The starch precipitates are separated, dried, and mixed with water to form a slurry. This slurry can be cast into films along with other biopolymers like chitosan. The films have properties like strength, elongation, and water resistance suitable for packaging applications. The blended films can be biodegradable in water, soil, or compost.

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Protective packaging insert for fragile goods made from a renewable cellulose foam that can be customized to fit any product shape. The insert has a substrate that folds around removable foam sections. The foam can be cut into patterns on the surface. This allows tailoring the foam around product protrusions and corners for better protection. The foam is biodegradable, recyclable, and made from renewable sources. The folding substrate reduces material waste compared to solid foam inserts. The insert can be compactly transported and expanded to fit the product.

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Process to make biodegradable bottles using natural materials like areca leaf and cellulose bio-polymer. The process involves cleaning and soaking the areca leaf sheath, drying it, compressing it with cellulose film to form a biodegradable material, thermoforming into bottle shape, and trimming. The resulting biodegradable bottle reduces plastic waste and promotes environmental sustainability compared to conventional plastic bottles.

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Eco-friendly packaging material made from fried food waste, biomass, and water that can replace traditional petroleum-based packaging. The composition uses the oil-rich fried scraps as a binder along with biomass powder, mixed with water to form a dough. The mixture is molded into packaging shapes and heat treated. This provides a biodegradable, compostable, and greenhouse gas reducing alternative to conventional plastic packaging. The fried food waste is derived from cooking leftovers, the biomass is pulverized paper or coffee grounds, and the solvent is water or basic solution.

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Composite paper for packaging applications made from cellulose fibers and mineral particles derived from purified phosphate mining waste. The paper aims to repurpose phosphate washing sludge as a sustainable alternative raw material in packaging. The sludge undergoes chemical treatment to remove toxic metals. The treated sludge particles are mixed with cellulose fibers to make composite paper. The composite paper has improved thermal and fire resistance compared to cellulose-only paper. It can be further coated with thermoplastic materials for enhanced water resistance.

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Biodegradable packaging cushioning material that is environmentally friendly, has low manufacturing costs, and improves moisture resistance, impact resistance, and shrinkage resistance compared to traditional starch-based foam cushioning materials. The composition contains starch, biodegradable aliphatic polyester, foam cell structure improver, foaming nucleating agent, and lubricant. The composition is mixed and extruded through a twin screw extruder with controlled water injection to create the foam. This allows manufacturing a biodegradable cushioning material with improved properties compared to powder-based starch foams.

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Biodegradable and compostable wrapping materials for cigarettes, heat-not-burn items, and tobacco products that replace traditional plastic packaging. The materials include a coating made from natural materials like plant fibers, vegetable dyes, algae, sepiolite, ethyl cellulose, shellac, and water. The coating is applied to the inner liner of multi-layered packaging to provide barrier properties. It prevents leakage, moisture ingress, and odor transfer. The biodegradable coating allows the packaging to decompose along with the contents when disposed of.

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Biodegradable food packaging materials made from biopolymers like PLA, nanobacterial cellulose (NBC), and PEG400. The materials can be used for packaging fruits, vegetables, shoots, seeds, etc. The NBC is produced from a specific strain of Bacillus licheniformis. The PLA-NBC composite materials have improved mechanical properties like tensile strength compared to PLA alone. The NBC provides stiffness and PEG400 adds elasticity. The materials are also antimicrobial. The NBC can be coated onto paper or formed into membranes. The PLA-neem extract coating is another biodegradable option.

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Biodegradable food packaging materials made from biodegradable nanocomposites based on polylactic acid (PLA) combined with nano bacterial cellulose (NBC) and optionally polyethylene glycol 400 (PEG400). The nanocomposites can be applied as coatings on secondary surfaces like paper or formed into membranes. The nanocomposites provide improved mechanical strength and barrier properties compared to PLA alone, making them suitable for food packaging. The nanocomposites can also be antibacterial due to the NBC content. The PLA-NBC composites can be prepared by mixing the components with stirring and spreading to dry.

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