Ginkgo leaf plant source preservative for retaining freshness of icy and fresh silvery pomfret

Abstract

The invention discloses a ginkgo leaf plant source preservative for retaining freshness of icy and fresh silvery pomfret. The ginkgo leaf plant source preservative is characterized in that ginkgo leaves are washed by using distilled water and the washed ginkgo leaves are put into an oven at the temperature of 65 DEG C to be dried until the water content is less than 10 percent; the ginkgo leaves are pulverized by using a pulverizing machine and the pulverized ginkgo leaves are sieved through a 60-mesh sieve to obtain ginkgo leaf dry powder; ultrasonically extracting 70 percent of ethanol for 40 minutes at the temperature of 60 DEG C according to the material-water ratio of 1 to 20 (g / mL); performing vacuum suction filtration and diluting filtering liquid until the flavonoid content is 0.01 microg / mL to obtain the ginkgo leaf plant source preservative. Fish layer ices on the silvery pomfret soaked with the preservative and the silvery pomfret without being processed are put into a foam box and sealed to be put into a refrigerator at the temperature of 4 DEG C to be stored, and the crushed ices are changed regularly. The preserved silvery pomfret is long in shelf life and high in quality, and the corrosion metamorphism caused by microorganism and enzyme can be reduced to a large extent; moreover, the preservative is easy to operate, low in cost and high in security.

Description

technical field [0001] The invention relates to a technology for extending the shelf life of aquatic products, in particular to a technology for extending the shelf life of chilled pomfret and its application. Background technique [0002] Pomfret, also known as mirror fish, is an important marine economic aquatic product, and is loved by people because of its tender meat and few spines. Pomfret is rich in unsaturated fatty acids and has the effect of lowering cholesterol. It is a good fish food for people with high blood fat and high cholesterol. At the same time, it is also rich in trace elements selenium and magnesium, which can prevent cardiovascular diseases such as coronary arteriosclerosis, delay the aging of the body, and prevent the occurrence of cancer, so it is particularly important for the preservation of pomfret. However, due to the constraints of various factors such as fishing seasons, geographical conditions, and climate, pomfrets are prone to corruption du...

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a plant-sourced ginkgo leaf preservative for keeping fresh pomfret fresh, aiming at the problems of short storage period, easy corruption of pomfret and difficulty in quality assurance in the existing storage technology of fresh pomfret, to provide a A fresh-keeping agent suitable for chilled pomfret

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