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Poison Traces ( F R D )

The scope of application:

Environmental free radicals are indicators of environmental pollution. This product can detect the concentration of free radicals in any body of water. It needs to be equipped with a 365nm UV lamp and a 0.45um syringe filter. The concentration of free radicals in water can be judged by the intensity of fluorescence.

Product description







What are free radicals?

Free radicals are mainly produced by pollution in the environment and cause abnormal conditions produced by normal substances. For example, oxygen (O2) in the environment is converted to superoxide radicals (O2-) due to pollution. The free radicals in the environment are constantly generated, and at the same time they are continuously neutralized and disappeared. The net value of the generation and disappearance is "environmental free radicals".

Free radicals may be continuously generated due to various pollution (air pollution, water pollution), microorganisms (bacteria, fungi), radiation (ultraviolet rays) and the high temperature of the internal combustion engine of automobiles.


Free radicals will cause harm?

Numerous scientific journals have reported that free radicals can harm the organism's immune and genetic systems. Therefore, the damage caused by free radicals has four characteristics:

First, the indefinite etiology (indefinitely): Owing to the damage to immune system, the causes to the death of aquaculture are hard to be identified.

Second, hereditary (hereditary): DNA damage & gene mutation, which leads to the fragile & feebler spawns.

Third, degenerative: Indirect injury results in the delay of the death which is observed after the rain.

Fourth, the irrrparable (irrrparable): Hereditary and immune cells are hard to repair once damaged. That is, recurring of diseases happens easily after injury.


2020 Marin Fish Farming Technology Forum Speech content 


Free radical products used in aquaculture and environmental disinfection.


Most of the products used in general environmental disinfection, sterilization and deodorization, as well as in aquaculture to kill algae and decompose organic matter in the substrate are products that use free radicals.These products include bleach (water), chlorine dioxide, hypochlorite, hydrogen peroxide, ozone and peroxide, all of which can directly and indirectly produce free radicals.Products that use free radicals are extremely effective in decomposing and killing bacteria, but they can also be harmful to living organisms, so care should be taken when using them.


If there are organisms, "do not" use free radical products with high oxidizing power.




The spokesperson of bacteria "FRD"
(FRD determines the concentration of free radicals in the environment based on the fluorescence intensity.)
The important chemical substances released by bacteria and other microorganisms in the environment are "Reactive Oxygen Species" (ROS)."ROS" is the source of high oxidizing power in the environment, which causes the weakened immune defense of aquatic organisms.
When bacteria are unstable, they release ROS to change unfavorable conditions. FRD can detect the stability of bacteria in the environment and the high oxidative toxicity in water.
"FRD" used in aquaculture has four major functions:
1. Improve the efficiency of probiotics.
By (FRD) tracking "ROS", we can understand the phenomenon of different bacteria under different conditions.
FRD helps farmers to master probiotics more easily and improve the efficiency of using probiotics.
2. Avoid the high oxidative damage of ROS.
"ROS" can decompose toxins and organic matter, but it is even more harmful to organisms in the environment.
The high oxidizing power caused by ROS is difficult to be tested. The "FRD" can effectively detect high oxidizing substances in the environment.
3. Non-toxic and safer to use.
"FRD" is made of natural fluorescent materials, which is safe for the environment and organisms.
At the same time, the "non-invasive" detection method is more convenient for observation, and the results can be tested in a very short time.
4.Detect toxins in the environment through ROS produced by microorganisms.
Pollution and toxins in the environment induce microorganisms to produce "ROS", so the level of environmental toxicity can be represented by the amount of ROS.
FRD turns every microorganism into a miniature detector in the water.





Poison Traces : FRD (Free Radicals Detector)


Detect the concentration of free radicals by using the phenomenon that the fluorescent substance reacts with free radicals to increase the brightness。


How to use??

Mix 50 cc of pool water with the free radical detection ingot for 5 minutes, then filter the mixed solution (filter paper pore size 0.45 μm), and finally irradiate the filtered solution with ultraviolet light (365 nm) for colorimetric conversion.





 Benifits of FRD
 1.Probiotics promote
Track ROS to improve the efficiency of probiotics.
2.Oxidant prevent
Track ROS to reduce oxidative stress on organisms.
3.Toxin Discover
FRD can accurately detect ROS produced by microbe because of pollution and toxins.
4.Friendly Environmentally
FRD is made of natural fluorescent material, which is friendly to the environment.


Poison Traces : FRD

enhances the efficiency of probiotics


Bacteria and other microorganisms will release free radicals to resist unfavorable factors (toxins, competitors) in the environment. Therefore, we can detect the concentration of free radicals in water to know whether there are factors in the environment that are unfavorable to the survival of organisms.

At the same time, it can also understand the growth of probiotic products in the aquaculture pond, and find the most suitable time to add probiotics to enhance the efficiency of probiotic use.


Under the action of FRD


Every "microorganism" in the environment is our "micro-detector".



Examples of FRD use in aquaculture ponds: Photosynthetic Bacteria




The best time for this brand of probiotics to work in this culture pool is : 12HR



Example of FRD use in a breeding pool: Brevibacterium



The best time for this brand of probiotics to work in this culture pool is : 8HR


Example of FRD use in a culture pond: bacillus subtilis




The best time for this brand of probiotics to work in this culture pool is : 2HR


Probiotics should be tracked

in order to enhance efficiency.

















Free Radicals Detector(FRD) is

the best decision basis for aquaculture