lautnusantara.com Active Packaging Technology Innovation is a cutting-edge solution for extending the shelf life of fishery products by interacting directly with the product and/or the atmosphere inside the packaging. Unlike conventional packaging, which only serves as a physical barrier, active packaging intentionally adds active substances to control quality degradation.

Active packaging is particularly relevant for fishery products because they are susceptible to two main types of deterioration: fat oxidation (rancidity) and microbial growth (spoilage).

Main Mechanisms of Active Packaging
Active packaging technology works by incorporating active components into the packaging matrix (film, sachet, or pad). Its main applications include:

1. Antimicrobial Agents ????
This is the most important component for controlling spoilage in fish. Antimicrobial agents are released in a controlled manner onto the surface of the fishery product or into the headspace of the packaging.
Common Active Ingredients:

• Chitosan: A natural polymer extracted from shrimp or crab shells. Chitosan can inhibit the growth of Gram-negative and Gram-positive bacteria by disrupting the integrity of the bacterial cell membrane and blocking the flow of nutrients.
• Essential Oils: Bioactive compounds from plants (such as rosemary, turmeric, and garlic extracts) that have hydrophobic properties and can damage microbial cell membranes.
• Carbon Dioxide Emitters: Increase the concentration of CO2 inside the package (typically 10-80%), effectively inhibiting the growth of many aerobic spoilage bacteria.

2. Antioxidant Agents
Fishery products, especially those high in fat (such as salmon or mackerel), are susceptible to fat oxidation, which causes rancidity and discoloration.

• Mechanism: Antioxidants are added to the packaging film and released into the product or scavenge free radicals within the package.
• Common Active Ingredients: Natural antioxidants, such as alpha-tocopherol (Vitamin E), tea extract, or other phenolic compounds that can prevent oxidation reactions.

3. Oxygen Scavengers
While vacuum packaging or Modified Atmosphere Packaging (MAP) already reduces oxygen, oxygen absorbers can remove residual O2 to below 0.01%, which is crucial for:\

• Preventing oxidation.
• Inhibiting the growth of obligate aerobic microorganisms (which require O2).

Related Packaging Innovations
In addition to active packaging, there are related innovations often used with fishery products:

• Edible Film/Coating: A thin, edible layer, often based on proteins (such as fish gelatin) or polysaccharides (such as carrageenan), that is coated directly onto the product. This film can serve as a carrier for antimicrobial and antioxidant agents while minimizing moisture loss.
• Intelligent Packaging: While distinct from active packaging, intelligent packaging complements food safety by providing real-time information about the product's condition through sensors or indicators (e.g., labels that change color if storage temperatures are exceeded).

The application of active packaging technology helps maintain the sensory quality (color, aroma, texture) and nutritional value of fishery products for longer, while increasing their safety.

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