modern trends in food packaging

1. MODERN TRENDS IN FOOD
PACKAGING
-Smart packaging
-R.RAMYA
2016008025
III-B.SC(FND)

2. Objectives of food packaging
 Protection: means guarding against
physical damage.
 Preservation:stopping or inhibting
chemical and biological changes.
 Labelling information:communicating
information on a pack to a consumer.
 marketing

3. Active packaging
 Active packaging allows packages to interact with
the food and the environment and play the dynamic
role in food preservation(increase shelf life of
products)
Active packaging is typically found in two type of
systems.
 Sachets and pads which are placed inside of
packages.
 Active ingredients that are incorporated directly into
packaging materials.
Examples:
 Oxygen scavengers
 Moisture control
 Scavenge ethyleners
 Antimicrobials

4. Intelligent or smart packaging
 Is designed to monitor and provide information
about the quality of packaged food.
 It utilises chemical sensor or biosensor to
monitor the food quality and safety from the
producers to the consumers
Example:
 Time-temperature indicators(TTIs)
 Freshness indicators
 Pathogen indicators
 Leak indicators(O2 and CO2 indicators)
 Radio frequency indication(RFID)
These smart devices may be incorporated in
package materials or attached to the inside or
outside of a package

5. Time –temperature indicators
 It is giving information
on temperature and it
shows the history and
variation in
temperature
throughout the whole
distribution chain.
 They are
commercially
available based on
various reaction
mechanisms(diffusion,
polymerisation or
enzyme reaction)

7. Freshness indicator
 Monitors the quality of packed food,by
reacting,in one way or another,to changes
taking place in the fresh food product as a
result of microbiological growth and
metabolism.
 It is designed to respond to chemicals released
by food as a result of spoilage,usually an
oxidative process is effected by bacteria,yeasts
and fungi,which break down food
carbo,proteins, and fats to a wide variety of
low-molecular weight molecules, such as
CO2,lactic and acetic
acetaldehydes,alcohols(ethanol),sulfur
containing species(H2S) and nitrogen

8.  “Fresh check” color-indicating tags
consist of a small label attached to the
outside of the packaging film.

9. Pathogen indicator
 Indicator gives information on the
detection of certain pathogens such as
E.coli 0157.
Mode of action:
 As the analyte (toxin,microorganism) is in
contact with the material it will be bound
first to a specific,labelled antibody and
then to a capturing antibody printed as a
certain pattern.
 This method could also be applied for the
detection of pesticide residues or proteins
resulting from genetic modifications.

10. Example:
 Toxin guard TM by toxic alert
inc.(Ontario,Canada) is a system to
build polyethylene-based packaging
material,which is able to detect the
presence of pathogenic bacteria with
the aid of immobilized antibodies .

11. Leak indicators(CO2,O2)
 Give information on the package
integrity throughout the whole
distribution chain which attached into
the package.
 The protecting atmosphere is
deteriorated as package leaks.
 The microbial spoilage is increased
with package leaks by enabling the
product contamination with harmful
microorganisms.

12. O2 indicators
 Gives information on leakage. The usage
area for this indicator is MAP.
 It consists of a redox-dye(such as
methylene blue),an alkaline
compound(such as NaOH) and a reducing
agent(such as reducing sugars)
 In addition solvent and bulking agent
compounds are added to this indicator.
 The indicator can be formulated as a
label, printed layer,a tablet,or it may also
be laminated in a polymer film.

14. CO2 indicators
 Used in MAP in which high CO2 levels
are desired. It displays the desired
concentrations of CO2 inside the
package.
 2 types- based on transducer:
1.Optical: 2 types-based on the colour
change of a pH indicator dye,such as
thymol blue and those based on the
CO2-induced fluorescence change of a
luminescent dye.
2.Electrochemical

15. Radio frequency identification
tags(RFID)
 Advanced form of an data information
carrier that can identify and trace a product.
 Wireless data collection technology.use
electronic tags for storing data and
identification of animals,objects or people.
 Tags attached to
assets(pallets,cattle,packs,meat bins) to
transmit information to a reader.
Tags classified into two:
 passive tag which is cheap,simple,short
range,powered by energy from reader.
 active tag which is battery powered,longer
range,more information(nutri