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FOOD AND PACKAGING
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INTRODUCTION
Any type of container has got advantages and disadvantages.
Advantages:
It contributes to protect food from bacterial contaminations and
it regulates thewater content or moisture of the food.
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Disadvantages:
We must have into consideration that using too many containers
means a realdanger for the environment and dont forget our proyect
deals with theenvironment protection: Hand in Hand for the
Environment Protection
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TYPES OF FOOD CONTAINERS
The containers for food and drinks can be classified as
follows:
GLASS
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PAPER AND CARDBOARD
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METAL (STEEL AND ALUMINIUM)
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PLASTIC
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GLASS
Advantages:
It can be recycled lots of times, it preserves food for a long
time. Disadvantages:
Its main drawback is that it needs high temperatures to be
processed, whichmeans a high energy cost.
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PAPER AND CARDBOARD
Advantages:
It preserves the products contained in it very well, avoidind
the damage which
could take place during its transportation; it preserves the
quality of theproducts. It also announces, promotes and identifies
the product from its originuntil it reaches the consumer and it has
got a low cost.
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PLASTIC
Advantages:
It ensures maximum protection for food, it is an inert material,
it is easy tosanitize and can be recycled endlessly.
Disadvantages:
It is one of the most expensive materials, it requires too much
energy in itsproduction process and it can lead to some dangerous
handling.
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METAL (STEEL AND ALUMINIUM)
Advantages:Thermal stability, tightness, magnetic quality and
chemical integrity.
Disadvantages:
It is a quite expensive material and recycling it implies a high
energetic cost.
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Plsticos sintticosSe producen a partir de polmeros sintticos. Se
caracteriza por su bajo coste de produccin. Se
pueden procesar fcilmente en las mquinas.
Plsticos biodegradables
Existen varios tipos de plsticos biodegradables que son mezclas
de polmeros sintticos como en el
almidn.
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Materiales compuestos (laminados)
Son films compuestos por varias capas delgadas de varios
materiales (metal, plsticoy papel).
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Nanocompuestos
Envases de nueva generacin con propiedades especficas. Contiene
pequeascantidades de minerales de relleno..
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Materiales de envasado activos e inteligentes
La causa ms frecuente de alteracin de la mayora de alimentos
frescos oprocesados es el crecimiento bacteriano. El sistemas ms
empleado en laactualidad es el eliminador de oxgeno.
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LOS EMBALAJES COMO RESIDUOS
-Envases reutilizables -Envases destinados al reciclado
materialo qumico
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-Envases destinados a la incineracin -Envases degradables de un
solo uso
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-Envases de vertedero
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Esta decisin debera ser tomada no solo por lo productores sino
tambin losconsumidores, los cual se encuentra interesados en la
proteccin del medio ambiente.
Los consumidores espaoles tambin se muestran favorables a la
utilizacin del vidrio
como material de envasado segn revela el estudio The European
Packaing Survey.
ENVASES EN ESPAA
