lautnusantara.com The title of the article “Application of Air Blast Freezing (ABF) Technology to Maintain Quality and Extend the Shelf Life of Octopus Meat” is a highly relevant topic in the fishing industry. The following is a summary of the key points that are the main focus in the implementation of Air Blast Freezing (ABF) technology on octopus meat:
1. Basic Principles of ABF and Quality
- Rapid Freezing: ABF uses very fast cold air circulation (temperatures between -35°C and -45°C) to freeze octopus in a short time (generally 4-6 hours).
- Formation of Small Ice Crystals: The rapid freezing process is very important to minimize the formation of large ice crystals in the octopus meat tissue cells. Large ice crystals can damage cell walls, causing texture damage and fluid loss (drip loss) when the product is thawed.
- Maintaining Sensory Quality: By preventing cell damage, ABF helps maintain the texture, taste, and natural appearance of octopus meat, which are key sensory quality criteria for export products.
2. Extending Shelf Life and Food Safety
- Extending Shelf Life and Food SafetyInhibiting Spoilage: Extremely low temperatures (-35°C to -45°C) quickly inhibit autolytic enzyme activity (self-destruction) and the growth of spoilage microorganisms. This is particularly crucial for octopus, which is known to have higher autolysis activity than fish. Extending Shelf Life: After being frozen with ABF, octopus products are typically stored in cold storage at a stable temperature (below -18°C, ideally -20°C to -25°C) for long-term storage (months or even more than a year) without significant quality deterioration.
- Cold Chain Aspects: The application of ABF is an important component in maintaining the cold chain for long-term storage (months or even more than a year) without significant quality deterioration. C) for long-term storage (months or even more than a year) without significant quality deterioration.
- Cold Chain Aspect: The application of ABF is an important component in maintaining the cold chain. The final quality of frozen octopus is highly dependent on proper handling of raw materials (temperature below 4°C) before freezing and consistent frozen storage temperatures.
3. Key Process Steps
- The application of ABF in octopus processing
- includes: Raw Material Receipt: Fresh octopus is received, its temperature is measured, and it is kept cold.
- Cleaning: Ink, eyes, beaks, and stomach contents are removed.
- Further Processing (Optional): Includes cutting into legs or flower type (whole octopus shaped like a flower). Arrangement on
- Tray: Products are neatly arranged on a freezer tray.
- ABF Process: Products are placed in an ABF machine until they reach the core product temperature (e.g., $-18^{\circ}\text{C}$) in a short time.
- Packaging and Storage: Frozen products are then packaged (often vacuum-packed) and transferred to cold storage for long-term frozen storage. Overall, ABF is the most effective and preferred freezing method for high-value fishery products such as octopus because it offers a balance between freezing speed, quality retention, and shelf life extension.
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