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Murray Hill & New Providence, N.J., U.S., March 7, 2016 – Process technologies that efficiently harness oxygen, carbon dioxide (CO2) or nitrogen (N2) are increasingly important to improving quality and productivity for all sectors of the seafood industry, according to Mark DiMaggio, head of food and beverage, Linde, Americas.
Below is a summary of related market and technology trends for fresh and prepared seafood, and aquaculture:

Fresh Seafood
To stay competitive, fresh seafood processors strive to improve the efficiency of their operations. Yet there is always a challenge of maintaining control over operating costs and temperatures, particularly with manual chilling methods, and especially as processors expand their operations. Loading or moving ice or dry ice around a plant or into boxes, totes or combo bins is not only labor intensive, but adds to the variability of production processes, specifically accurate temperature control. In addition, storing ice consumes valuable space, and melting or sublimation losses can exceed 20 percent.

In contrast, Linde On – Demand CO2 snow chilling solutions instantly generate CO2 snow on demand and can deliver more consistent temperatures across the seafood. That consistency translates into more repeatable operations, higher product quality, a reduction in labor and generally lower operating costs. These state-of-the-art solutions include:

  • The DRI PACK® box-chilling system and other automated solutions efficiently top off boxes of fresh fish or other seafood with CO2 snow as boxes move along a conveyor.
  • The CSG 4 snow generator uses four specially-designed snow horns to channel a flow of CO2 snow into combo bins.

Beyond chilling, Linde MAPAX® gases for modified atmosphere packaging (MAP) systems can typically extend the shelf life of chilled raw fish such as cod, salmon, tilapia, flounder or haddock from a few days up to two weeks compared to alternative packaging methods . For cooked fish, using a proper blend of MAPAX gases can typically extend refrigerated shelf-life to 30 days. (1)  

Prepared Seafood
Innovative prepared seafood products command a premium price and can offer processors a competitive edge. Linde cryogenic freezing solutions, which use the extreme cold of liquid CO2 or N2, can typically speed production, quality and yield simultaneously. Here are a few examples of this technology:

  • The CRYOLINE® (CRYOWAVE®) IQF freezer uses a patented rolling-wave action on the conveyor belt to keep ingredient items such as shrimp and  scallops separate as they are individually quick frozen.
  • The patented CRYOLINE® XF (Crossflow) spiral freezer delivers a consistent flow of cryogen across the belt for more rapid and even freezing of, e.g., marinated or breaded fish fillets and trayed entrees.

Aquaculture Productivity
Aquaculture production is poised to rise in the Americas as China and countries in Asia that had been major exporters of fresh fish become net importers.(2) Longer term, advances in aquaculture will continue to help meet the demand for fresh protein as global population rises by almost a third to 9.7B in 2050.(3)

Already nearly half of the world’s seafood comes from either land-based or offshore fish farms that cultivate fresh-water or saltwater marine species in controlled environments. Against this backdrop, fish farms face all the challenges of maintaining optimal fish growing conditions: appropriate nutrition, disease prevention, and maintaining the water environment. In fact, water is the most important factor for achieving healthy fish and high yield, so controlling the concentration of dissolved oxygen is crucial. (4)

Linde is a global leader in oxygenation systems for aquaculture and develops the technology through its world-class Innovation Center for Aquaculture in Norway, the most industrialized fish farming center in the world. Linde customizes solutions for customers worldwide, and can simulate a healthy water environment regardless of species, water type or fish cycle. (5)

Linde patented SOLVOX® oxygenation systems can raise the level of dissolved oxygen in water to close to 100 percent capacity. (See video.) The SOLVOX® family comprises technology for optimized dissolution of oxygen in water, distribution of oxygenated water to the fish, and related supply and control systems for maintaining healthy water and maximizing yield..

The Linde food team performs on-site assessments and works with fish farms seafood processors to develop optimal process solutions. For more information, visit:, or call: 800-755-9277. 

Linde LLC supports the Global Food Safety Initiative (GFSI) and the advancement of food safety. Linde has a Food Safety Management System in place for all bulk carbon dioxide (CO2) plants and air separation facilities supplying the food & beverage industry in North America. In June 2012, Linde became the first supplier to certify all of its CO2 plants to a benchmarked GFSI scheme, FSSC 22000 (Food Safety System Certification).

About Linde LLC in North America
Linde LLC is a member of The Linde Group. In the 2014 financial year, The Linde Group generated revenue of  USD 17.9 bn (EUR 17.047 bn), making it the largest gases and engineering company in the world with approximately 65,500 employees working in more than 100 countries worldwide. The strategy of The Linde Group is geared towards long-term profitable growth and focuses on the expansion of its international business with forward-looking products and services. Linde acts responsibly towards its shareholders, business partners, employees, society and the environment – in every one of its business areas, regions and locations across the globe. The company is committed to technologies and products that unite the goals of customer value and sustainable development.

DRI PACK, SOLVOX, CRYOLINE and MAPAX are registered trademarks of Linde AG and Linde LLC.
CRYOWAVE is a registered trademark of Linde LLC.

For more information, visit
Linde Contact:
Amy Ficon
Corporate Communications
908-771-1491, Fax 908-771-1460