Knowledge

[soumilk]

Here, in this issue, share the ideas, knowledge as well as resources.
Knowledge may be any tech or non-tech.

Summary

After going through the article which was provided by @shanimridul I have concluded it in this:

* The principal roles of food packaging are to protect food products from outside influences and damage, to contain the food, and to provide consumers with ingredient and nutritional information (Coles 2003). Traceability, convenience, and tamper indication are secondary functions of increasing importance. The goal of food packaging is to contain food in a cost-effective way that satisfies industry requirements and consumer desires, maintains food safety, and minimizes environmental impact.

• Protection/preservation:

  • Chemical: oxygen, moisture, light(visible, infrared, or ultraviolet)
    • Packing Materials: Glass, metals, plastic caps or sealing.
  • Biological: microorganisms (pathogens and spoiling agents), insects, rodents,
    • Packing: Air tight, packed
  • Physical: mechanical damage, shock and vibration
    • Packing: rigid when need to maintain shape and resist lekage.

• Containment and food waste reduction: (longer sustainability of food)

• Marketing and information: (Face of product, info about product)

• Traceability: (bar code on package)

• Convenience: ( access, handling, and disposal; product visibility; resealability; and microwavability greatly influence package innovation)

• Tamper indication: (Festures which are integrated on package which will chage their state once packat is opned, to ensure no tampering and adulteratio)

Packaging material

possible packaging materials are glass, metals (aluminum, foils and laminates, tinplate, and tin-free steel), paper and paperboards, and plastics.

Glass

Advantges

1. odorless and chemically inert with virtually all food products
2. impermeable to gases and vapors
3. withstand high processing temperatures
4. glass color can protect light-sensitive contents

Disadvantages

5. heavy weight
6. transportation costs
7. brittleness
8. susceptibility to breakage from internal pressure, impact, or thermal shock

Metal

Advantages

1. excellent physical protection and barrier properties
2. formability and decorative potential
3. recyclability

most predominantly used in packaging are aluminum and steel.

4. Aluminum : lightweight, highly resistant to most forms of corrosion, barrier to the effects of air, temperature, moisture, microorganisms and chemical attack, flexibility.

Plastics

Advantages

1. Fluid and moldable, plastics can be made into sheets, shapes, and structures, offering considerable design flexibility
2. chemically resistant, plastics are inexpensive and lightweight

thermosets: (rigit and strong not used in packaing very often) and thermoplastics (soften upon exposure to heat and return to their original condition at room temperature)

Disadvantage

3. permeability to light, gases, vapors, and low molecular weight molecules.
4. health concerns regarding residual monomer and components in plastics, including stabilizers, plasticizers

Paper and paperboard

Advantages

1. Lightweight
2. Recyclable
3. paper can be laminated with polyethylene to make it heat sealable and to improve gas and moisture barrier properties.
4. Laminated paper is used to package dried products such as soups, herbs, and spices.

Disadvantages

5. poor barrier properties and is not heat sealable