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Food and Beverages Tech Review | Monday, August 10, 2020
The recent changes in the lifestyle of the consumers give them less time to prepare; thus leaving them to depend on instant food. This poses a great challenge to the food industries to deliver good food compromising with the consumers’ health. Check out some of the food packaging innovations to deploy in your food packaging industry.
FREMONT, CA: Good packaging plays a critical role in delivering good quality, safe, and hygienic food to the consumers. Good quality of food packaging not only adds to the reputation of the brand but also promotes hygiene among the consumers. Modern food packaging is a result of the consumer’s desire to have good quality, tasty, ready to eat, hygienic food, and of course, extended shelf life. Below are the types of modern packaging systems:
1. Active Packaging
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This type of packaging fulfills the demand of the consumer for recyclable, natural, and bio-degradable packaging materials. The interaction of packaging material, food products, and the ambiance cause the intrinsic conditions of the package to change. Moreover, this condition ensures security, wholesomeness, and aesthetic values, which in turn extends the shelf life of the food and avoids contamination.
The gas absorbents and emitters control the packaging atmospheric balance. The active substance is inserted in a very control way into the food, which avoids unnecessary flavor while providing a longer shelf life. The synthetic additives are selected very carefully, keeping in mind all the product characteristics, and packaging material and should form homogeneous distribution inside. The natural additives contain bioactive phenol compounds that are used in active packaging of meat as they have antimicrobial effects.
Oxygen scavengers absorb the atmospheric oxygen diffusing through the packaging material during the storage. In turn, the response depends on the oxidation of iron compounds. Generally, oxygen-absorbing agents through iron compounds are stored in sachets permeable to oxygen. Moreover, moisture scavengers existing in the form of an absorbent tray, sachet, and absorbent pads control excess moisture and humidity present inside the package. Carbon dioxide prevents the collapsing of the package because of the existence of oxygen absorbers and also help in the reduction of respiration of fresh goods. Antimicrobial packaging is done by using compounds with natural antimicrobial activity like bacteriocins and enzymes.
2. Intelligent Packaging
Intelligent packaging has emerged from the advancements in time and facilities, like temperature regulators, biosensors, ripeness monitors, and radio frequency indicators. Thus, this packaging offers signals for perceiving as well as evaluating the freshness of food products by sensing, recording, detecting, and communicating for decision making, and expanding storage time as well as to enhance quality and safety.
This type of packaging system also helps in evaluating the effectiveness of the packaging process. It involves indicators that are utilized for quality control of packaged food. The two indicators, i.e., internal attachment inside the package and the external outside the package, are attached into the lid or to the headspace.
a) Time Temperature Indicator: This device gives clues regarding the product’s time-temperature change.
b) Freshness Indicator: This device indicates two types of changes—Microbial changes and lipid and pigments oxidation. It tells the quality of the food product.
c) Pathogen Indicators: This device checks the presence of pathogenic bacteria by detection of immobilized antibodies.
3. Nanotechnology
This system utilizes materials or devices with 1-100 nm in length. Nanomaterials are the materials that have an external dimension on the nanoscale, which has nanofibres, nanoplates, and nanoparticles as three clusters. Nanotechnology is widely used in domains of packaging, biomedical, cosmetics, electronics, etc. Nanoparticles based sensors, nanocantilevers, array biosensors, nano-test strips, electronic noses, and nanoparticles in the solution are some types of nanosensors used in food packaging plants.
A variety of nanomaterials have been introduced as functional additives to food packages like titanium nitride nanoparticle, nano titanium dioxide, nanoclay, and nano-zinc oxide. These nanosensors are essential for tracing the conditions of products, and containers as they can detect gases in the food in case of food spoilage and package color change. The film packed with silicate nanoparticles contributes to food freshness by lessening the flow of oxygen into the package and avoiding leakage of moisture. This packaging also detects the existence of microbial pathogens, pesticides, toxins, and other food spoiling agents.
4. Bioactive Packaging Technology
It is a novel packaging technology using various methods to retain properties of biopolymers, including nanoencapsulation, enzyme encapsulation, enzyme immobilization, and microencapsulation. This helps in altering the package and coating in a way for having a positive effect on consumer’s health. Process of bioactive packaging technology is applied through
a) Utilization of bioactive packaging materials for releasing bioactive or functional components.
b) Encapsulation of bioactive components into the food or packaging materials.
c) Introduction of packaging materials containing enzyme activity and capable of transforming food components for delivering health benefits.
Currently, these food packaging technologies are coming together to improvise packaging techniques by creating new opportunities for the food industries to use these technologies in the future. These innovations are expected to secure food safety, quality, and stability and fulfill the ever-growing requirements of consumers.
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