UNIT 1:
Functions of Packaging, Packaging of foods requirement, importance and scope, environmental considerations
Flexible packaging materials, Plastic packaging - types of polymers in food packaging and their barrier properties
Manufacturing types Paper and paper board - characteristics
Testing methods for flexible packaging materials
Packaging - manufacture process - modification of barrier properties
Corrugated fiberboard boxes, Relative advantages and disadvantages of different packaging materials
UNIT 2:
Metal cans, manufacture of two piece and three-piece cans
Metal cans, manufacture of two piece and three-piece cans
Container designs - Raw materials for can-making – End-making processes
Easy-open ends – Coatings. Glass containers - types of glass in food packaging
Manufacture of glass and glass containers, closures for glass containers
Effect of these materials on packed commodities.
Testing methods for rigid materials and semi rigid materials.
UNIT 3:
Shrink and cling packaging, vacuum packaging
CAP and MAP - novel gases - applications
Aseptic packaging – requirements -
Tetra packaging, Retort packaging – principles and application.
shallow and deep path sterilization of Aseptic packaging
Edible film packaging, Shrink and stretch packaging,
UNIT 4:
Active packaging - Controlled release packaging – process, structure property and food variables, target release rate.
Free radical scavenging, oxygen scavenging and antimicrobial nanocomposites
Active nanocomposite packaging
Antimicrobial packaging - Natural non-toxic insect repellent packaging materials.
Mechanism of flavor release, practical applications
UNIT 5:
Advances in freshness and safety indicators in food packaging.
Smart and intelligent packaging – components and applications. Interactive packaging using internet, Smart Labeling
Labeling to detect changes in temperature, monitor freshness, changes in oxygen and carbon dioxide concentration.
Calculation of freezing point and refrigeration requirements of mixes
Shelf life studies - Shelf life models
Constant and variable H2O and O2 driving forces
