Packaging gas
A packaging gas is used to pack sensitive materials such as food into a modified atmosphere environment. The gas used is usually inert, or of a nature that protects the integrity of the packaged goods, inhibiting unwanted chemical reactions such as food spoilage or oxidation. Some may also serve as a propellant for aerosol sprays like cans of whipped cream. For packaging food, the use of various gases is approved by regulatory organisations.[1]
Their E numbers are included in the following lists in parentheses.[2]
Inert gases
These gas types do not cause a chemical change to the substance that they protect.
- argon (E938), used for canned products
- helium (E939), used for canned products
- nitrogen (E941), also propellant
- carbon dioxide (E290), also propellant
Propellant gases
Specific kinds of packaging gases are aerosol propellants. These process and assist the ejection of the product from its container.
- chlorofluorocarbons known as CFC (E940 and E945), now rarely used because of the damage that they do to the ozone layer:[3]
- dichlorodifluoromethane (E940)
- chloropentafluoroethane (E945)
- nitrous oxide (E942), used for aerosol whipped cream canisters (see Nitrous oxide: Aerosol propellant)
- octafluorocyclobutane (E946)
Reactive gases
These must be used with caution as they may have adverse effects when exposed to certain chemicals. They will cause oxidisation or contamination to certain types of materials.
Volatile gases
Hydrocarbon gases approved for use with food need to be used with extreme caution as they are highly combustible, when combined with oxygen they burn very rapidly and may cause explosions in confined spaces. Special precautions must be taken when transporting these gases.[4]
See also
References
- ^ "The purity of gases". Cleanroom Technology 21 June 2010. Retrieved 15 February 2011.
- ^ "Current EU approved additives and their E Numbers". Food standards agency 26 November 2010. Retrieved 15 February 2011.
- ^ Spectrum Laboratories : Chemical Fact Sheet - Cas # 75718
- ^ "Amendment to Directive 96/77/EC on purity criteria of food additives". Food standards agency 27 June 2002. Retrieved 15 February 2011.
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topics
- Active packaging
- Child-resistant packaging
- Contract packager
- Edible packaging
- Modified atmosphere/modified humidity packaging
- Overpackaging
- Package delivery
- Package pilferage
- Package testing
- Package theft
- Packaging engineering
- Resealable packaging
- Reusable packaging
- Reuse of bottles
- Shelf life
- Shelf-ready packaging
- Shelf-stable
- Sustainable packaging
- Tamper-evident
- Tamper resistance
- Wrap rage
packages
- Alternative wine closure
- Banana box
- Beer bottle
- Box wine
- Case-ready meat
- Coffee bag
- Cosmetic packaging
- Currency packaging
- Disposable food packaging
- Drink can
- Egg carton
- Evidence packaging
- Field ration
- Flour sack
- Foam food container
- Food packaging
- Fuel container
- Gas cylinder
- Glass milk bottle
- Growler
- Juicebox
- Low plastic water bottle
- Luxury packaging
- Milk bag
- Optical disc packaging
- Oyster pail
- Popcorn bag
- Pharmaceutical packaging
- Plastic milk container
- Purdue Improved Crop Storage bags
- Sand bag
- Seasonal packaging
- Self-heating food packaging
- Screw cap (wine)
- Single-serve coffee container
- Toothpaste pump dispenser
- Water bottle
- Wine bottle
- Aerosol spray
- Aluminium bottle
- Aluminum can
- Ampoule
- Antistatic bag
- Bag-in-box
- Bag
- Barrel
- Biodegradable bag
- Blister pack
- Boil-in-bag
- Bottle
- Box
- Bulk box
- Cage
- Case
- Carboy
- Carton
- Chub
- Clamshell
- Corrugated box design
- Crate
- Disposable cup
- Drum
- Endcap
- Envelope
- Euro container
- Flexible intermediate bulk container
- Flexi-bag
- Folding carton
- Glass bottle
- Gunny sack
- Inhaler
- Insulated shipping container
- Intermediate bulk container
- Jar
- Jerrycan
- Jug
- Keg
- Mesh bag
- Multilayered packaging
- Multi-pack
- Packet (container)
- Padded envelope
- Pail
- Paper bag
- Paper sack
- Plastic bag
- Plastic bottle
- Retort pouch
- Salvage drum
- Sachet
- Security bag
- Shipping container
- Shipping tube
- Skin pack
- Spray bottle
- Squround
- Stand-up pouch
- Steel and tin cans
- Tetra Brik
- Thermal bag
- Tub (container)
- Tube
- Unit load
- Vial
- Wooden box
and
components
- Adhesive
- Aluminium foil
- Bail handle
- Bioplastic
- Biodegradable plastic
- BoPET
- Bubble wrap
- Bung
- Cellophane
- Closure
- Coated paper
- Coating
- Coextrusion
- Corrugated fiberboard
- Corrugated plastic
- Cushioning
- Desiccant
- Double seam
- Flip-top
- Foam peanut
- Gel pack
- Glass
- Hot-melt adhesive
- Humidity indicator card
- Kraft paper
- Label
- Lid
- Linear low-density polyethylene
- Liquid packaging board
- Living hinge
- Low-density polyethylene
- Meat diaper
- Metallised film
- Modified atmosphere
- Molded pulp
- Nonwoven fabric
- Overwrap
- Oxygen scavenger
- Package handle
- Packaging gas
- Pallet
- Paper
- Paper pallet
- Paperboard
- Plastic-coated paper
- Plastic film
- Plastic pallet
- Plastic wrap
- Polyester
- Polyethylene
- Polypropylene
- Pressure-sensitive tape
- Pump dispenser
- Screw cap
- Screw cap (wine)
- Security printing
- Security tape
- Shock detector
- Shock and vibration data logger
- Shrink wrap
- Slip sheet
- Staple (fastener)
- Strapping
- Stretch wrap
- Susceptor
- Tamper-evident band
- Tear tape
- Temperature data logger
- Time temperature indicator
- Tinplate
- Velostat
- Aseptic processing
- Authentication
- Automatic identification and data capture
- Blow fill seal
- Blow molding
- Calendering
- Canning
- Coating
- Containerization
- Converting
- Corona treatment
- Curtain coating
- Die cutting
- Die forming (plastics)
- Electronic article surveillance
- Extrusion
- Extrusion coating
- Flame treatment
- Glass production
- Graphic design
- Hazard analysis and critical control points
- Hermetic seal
- Induction sealing
- Injection moulding
- Lamination
- Laser cutting
- Molding
- Package tracking
- Papermaking
- Plastic extrusion
- Plastic welding
- Printing
- Product development
- Production control
- Quality assurance
- Radio-frequency identification
- Roll slitting
- Shearing (manufacturing)
- Thermoforming
- Track and trace
- Ultrasonic welding
- Vacuum forming
- Vacuum packaging
- Verification and validation
- Barcode printer
- Barcode reader
- Bottling line
- Calender
- Can seamer
- Cap torque tester
- Cartoning machine
- Case sealer
- Check weigher
- Conveyor system
- Drum pump
- Extended core stretch wrapper
- Filler
- Heat gun
- Heat sealer
- Industrial robot
- Injection molding machine
- Label printer applicator
- Lineshaft roller conveyor
- Logistics automation
- Material-handling equipment
- Mechanical brake stretch wrapper
- Multihead weigher
- Orbital stretch wrapper
- Packaging machinery
- Pallet inverter
- Palletizer
- Rotary wheel blow molding systems
- Seed-counting machine
- Shrink tunnel
- Staple gun
- Tape dispenser
- Turntable stretch wrapper
- Vertical form fill sealing machine
post-use
- Biodegradation
- Closed-loop box reuse
- Environmental engineering
- Glass recycling
- Industrial ecology
- Life-cycle assessment
- Litter
- Packaging waste
- Paper recycling
- PET bottle recycling
- Plastic recycling
- Recycling
- Reusable packaging
- Reverse logistics
- Source reduction
- Sustainable packaging
- Waste management
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