Recently, the airport office of Weihai Inspection and Quarantine Bureau detected a batch of frozen salt-based nitrogen imported from abroad, and the inspection and quarantine personnel have destroyed the batch of goods according to law. This is the first time that Weihai Airport port has detected imported water. If the product is unqualified, it is also the first time to destroy the unqualified aquatic products.

Volatile base nitrogen is a representative of the freshness of animal protein. It is an alkaline nitrogenous substance such as ammonia and amines produced by the decomposition of proteins in the process of spoilage due to the action of enzymes and bacteria. The higher the content, the more the amino acids are destroyed, especially methionine and tyrosine, so the nutritional value is greatly affected. This indicator has now become an important indicator of China's food hygiene, especially for the inspection of fresh meat and aquatic products.

Imported aquatic products are susceptible to microbial contamination during processing, transportation and storage, leading to spoilage. Weihai Inspection and Quarantine Bureau attaches great importance to the quality and safety of imported aquatic products, continuously strengthens the supervision of the whole process of imported aquatic products, urges enterprises to strictly fulfill the main responsibility of food safety, establishes food safety awareness, and effectively guarantees the quality and safety of imported aquatic products. At the same time, it also reminds relevant import enterprises that China currently implements an access system for imported aquatic products. Before importing aquatic products, enterprises can consult relevant matters of inspection and quarantine departments to avoid unnecessary economic losses caused by return shipment or destruction.