With the improvement of living standards, meat products have entered the homes of ordinary people. Freshness is a key factor in determining the safety of meat. The nutritional value and taste of spoiled meat have changed, and spoiled meat may even produce toxic substances, causing harm to consumers. The freshness of raw meat quality can be evaluated through physical and chemical indicators, sensory indicators and microbiological indicators. Volatile base nitrogen detection is an important indicator reflecting freshness.
Volatile base nitrogen refers to ammonia, amine and other alkaline nitrogen-containing substances produced by the decomposition of proteins in animal foods due to the action of enzymes and bacteria. It is an indicative indicator of the spoilage of animal foods. These substances are volatile. The higher the content, the more amino acids are destroyed, especially methionine and tyrosine , and the nutritional value is greatly affected. Nitrogen-containing substances (such as ammonia nitrogen, amine nitrogen and other volatile basic nitrogen) produced during meat spoilage can cause food poisoning. Therefore, the detection of volatile basic nitrogen in meat and meat products by the volatile basic nitrogen detector is the key to ensuring food safety.
volatile base nitrogen detector detection procedures:
1. Prepare [blank liquid] and [sample liquid] according to the steps in the reagent instructions;
2. Put the [sample liquid] cuvette into the corresponding channel, Click the sample name button to select [Sample Name]
3. Detect
① Put the [Blank Liquid] into the No. 1 channel port, put the [Sample Liquid] in other channels except Channel 1, and click [Detect] to get the number directly .
②Put [blank liquid] into the port of channel 1, put [sample liquid] in other channels except channel 1, adjust the [reaction time] according to the reagent instructions, and click [Detection]. After the progress bar is completed, the detection will be displayed. result. (Reaction time defaults to "0")
4. Save (manual save)
5. Print (manual print)
Volatile base nitrogen detector is simple to use and has strong versatility. It can be applied to pork, beef, mutton, Fish and other meat testing. In order to prevent problematic meat from circulating in the market, we must not only control it at the source, but also rely on accurate, fast, and portable volatile base nitrogen detectors to monitor the market.
