What is the reason why frozen hairtail turns yellow? Can hairtail roe be eaten?

Hairtail is also called skirt hairtail, fat hairtail, oily hairtail, tooth hairtail, etc. When selecting, generally choose hairtail with complete body shape, shiny body surface, plump eyeballs, transparent cornea, and good muscle elasticity. What is the reason for the yellowing of frozen hairtail? Do you know and understand?

Contents of this article

1. What is the reason why frozen hairtail turns yellow?

2. Can hairtail roe be eaten?

3. How does hairtail fish sleep?

Why does frozen hairtail turn yellow?

The yellowing of frozen hairtail may be caused by oxidation of fat on the fish's surface. Hairtail has a high fat content. When frozen hairtail is stored for a long time, the fat on the fish's surface will accelerate oxidation due to a large amount of contact with air, and the oxidation products will make the fish's surface yellow. The yellowing of frozen hairtail is generally the beginning of deterioration, so it is best not to eat frozen hairtail that has turned yellow, otherwise it is not good for your health.

Hairtail is mainly distributed in the western Pacific Ocean and the Indian Ocean, and in my country it is distributed in the Yellow Sea, East China Sea, Bohai Sea, South China Sea, etc.

Frozen hairtail is made from fresh hairtail through a process including picking, rinsing, weighing, plating, cooling, removing from trays, and refrigerating.

When selecting, generally choose hairtail with complete body shape, shiny body surface, plump eyeballs, transparent cornea and good muscle elasticity.

Can hairtail roe be eaten?

It is not recommended to eat. Most of the hairtail fish on the market are frozen, and frozen hairtail fish roe is not recommended for consumption, because during the freezing process, the fish roe is prone to breed bacteria and other microorganisms, and may also produce parasites, which will have a certain adverse effect on your health after consumption.

Hairtail roe contains a variety of nutrients and has high nutritional value. It has certain benefits for the human body after consumption, but eating too much will increase the burden on the gastrointestinal tract and affect gastrointestinal health.

Hairtail roe contains a high level of cholesterol, so the elderly should be especially careful not to consume it in excess.

How does hairtail fish sleep?

When the hairtail fish sleep, their bodies are vertical in the water. Hairtail fish, also known as skirt hairtail, fat hairtail, oily hairtail, tooth hairtail fish, etc., belong to the class of bony fishes, order of Perciformes, family of hairtail fish, in the subphylum of vertebrates under the phylum Chordata. They are mainly distributed in the western Pacific and Indian Oceans, and in the Yellow Sea, East China Sea, Bohai Sea and even the South China Sea in my country.

The body of the hairtail is flattened like a ribbon, silver-gray in color, with light gray dorsal and pectoral fins and very small spots. The tail is black. The hairtail has a pointed head and a large mouth, which gradually becomes thinner towards the tail. It is about 1 meter long.

Hairtail mainly feeds on shrimp and squid, and is known as one of China's four major seafoods along with large yellow croaker, small yellow croaker and squid. Hairtail has a very diverse diet and is very greedy, sometimes cannibalizing its own kind.

The lifespan of hairtail is about 8 years. The average length of a one-year-old fish is 18 to 19 centimeters and weighs 90 to 110 grams. It can reproduce in the same year, and a two-year-old fish can grow to about 300 grams.