How does CO injection machine affect tuna color?

( CO injection machine) Farmed and processed yellowfin tuna is brown in the wild but is red when produced and packaged for the consumer. Have you ever wondered why tuna is so red? And the red color is the high value that the piece of tuna brings, and the soft texture of the flesh is the ingredient that makes sushi and sashimi famous. And what is the relationship between tuna and CO? Let’s find out with bnt-machinery.com in this article!

Contents

1 Why does tuna have red color?
2 The relationship between tuna and CO
3 CO injector features and advanced features
4 Learn more about BNT Machinery products:
5 Contact information to buy CO injection:

Why does tuna have red color?

The red color of tuna meat is due to a relatively large amount of myoglobin – an oxygen-binding protein similar to Hemoglobin. In the presence of oxygen, the red color of oxy-myoglobin predominates, giving the fish a red color, but this is degraded during storage. Eventually, metmyoglobin is formed, so the tuna flesh turns brown. Management practices in diet, fishing, farming, and processing have the potential to optimize and consistently color tuna meat.

Tuna red color is affected by CO

The relationship between tuna and CO

Frozen preserved tuna usually turns brown quickly. It is costly to keep the color stable by fast freezing and store it at a shallow temperature ( -56 degrees Celsius ). After thawing, the color returns to the original brown color. A more cost-effective alternative is to use CO gas (Carbon Monoxide) to treat the tuna muscle to retain the red color of the strength. This is because CO is firmly bound to Hemoglobin (240 times stronger than oxygen), making it resistant to self-oxidation.

CO injection machine improves the color of tuna meat

CO gas improves the color of tuna

Many research results conclude that when using CO at low levels (0.1 – 5% ), there is a significant stabilizing effect on the red color of tuna fibers. In addition, it is possible to extend the shelf life and limit spoilage. Use CO gas at a moderate level and adjust gas withdrawal when packing (MAP) to not affect consumers’ health.

Although this practice is prohibited in Canada, Japan, Singapore, and the European Union, treating tuna meat with CO injection machine gas will give the fish a bright red color that looks different from untreated tuna. The critical issue is that consumers are ingesting CO, not inhaling CO, and this is completely harmless and has no health effects.

Tuna injection machine is the best solution for the tuna processing industry

If many countries ban CO gas, other techniques must be relied on to optimize the color fastness of tuna meat. Ultra-low temperature (ULT) freezing is a technique commonly used in the tuna industry, which involves freezing and keeping the fish at minus 60 degrees Celsius. This preserves color. Color and texture while frozen but require high costs. Fresh tuna that is well handled before and after harvest will retain its color for 7-10 days, but the tuna meat will turn brown within 24 hours if not taken well.

CO injector features and advanced features

Technology is increasingly developing, producing machines to support production for many businesses; CO injection machine was born to help preserve and keep the color of tuna lighter and faster. With an advanced system, it doesn’t cost a lot of labor to hire, the machine’s durability is high, it’s easy to use and clean.

Gas injection machine for tuna in processing facility

The tuna injection machine sold at bnt-machinery has new features that make injecting fish more efficient. In addition to basic features such as high fish alarm, low-pressure warning… Elements of gas injection machine for tuna and advanced features such as:

+ Avoid needle clogging
+ Adjust the exhaust time
+ Stainless steel manifold
+ Independently Adjust the injector speed and independently adjust the injector up or down speed.
+ Protect the needle and prevent the needle from being clogged, bent, broken.
+ Protect fish and avoid meat cracking, no brown spots after handling.
+ Reasonable design, easy to operate, and high safety: YES
+ The machine is designed for high-intensity work, very efficient, good performance and durable…
+ Compact design: L2350mm x W1050mm x H1880mm, saving a lot of space for your processing room.
+ Easy to set up: connect the CO/TS/Oxygen supply, 100-220V-50/60Hz – 750W supply, and the exhaust fan open, and your machine is ready to play!
+ Energy saving and hygiene: No hydraulic power, no need for air compressor to operate hydraulic piston / pneumatic piston for injector module like old and other versions. Our machine uses a direct power supply of only 750 Walt, saving a lot of energy for the operator and cleaning.
+ Friendly to operate: all parameters can be adjusted using the HMI display or physical volume buttons. All alarms and kettles are readable with sound and cigarette lighter on the HMI display. The operator can follow the instructions and self-adjust.
Food Grade Material & Design: All materials are made from food-grade standards like stainless steel, Teflon, and flat plastic conveyor belt.
+ Easy to clean: Easy to clean the system before and after operating the system. Especially the flat conveyor is easy to clean, easy to take out and roll up and soak in chlorinated water after use.
+ Move: with 4 or 6 wheels, the machine is easy to move to the installation area,
+ Safer design: With the separation between electrical appliances and gas lines, all gas lines are installed in the injector chamber with the ventilation system. Safer during operation and safer when there is a leak on the pipe…

> > > SEE MORE: https://bnt-machinery.com/tuna-injection-machine

In the above article, we have explained to you why the color of tuna is red and the outstanding features of the CO injection machine. I hope you will choose a convenient device for production and saves cost and time for your business.

Learn more about BNT Machinery products:

BNT Machinery is one of the leading companies in manufacturing and supplying equipment and machinery for the food industry, especially the tuna processing industry, Tuna injection machine, Anticlog needles, Tuna meat separator machine, Tasteless smoke generators. With many years of experience and a team of highly skilled technicians, BNT Machinery has gradually affirmed its brand name, met production needs, and used high productivity to process tuna, swordfish, and salmon lines. As well as salmon. Other meats and poultry.