A kind of preservation method of drone pupae

Abstract

The invention relates to a preservation method of drone pupae. The preservation method comprises the following steps that fresh pupae subjected to spleen cutting and harvesting are washed to be clean and then drained for use; blanching is conducted for 3 min to 8 min in an antistaling agent heated to 58 DEG C to 62 DEG C; the treated pupae are taken out and put into a 4%-5% trehalose aqueous solution to be cooled to room temperature; vacuum pumping and nitrogen filling packaging is conducted; refrigeration is conducted at 0-5 DEG C. The antistaling agent is prepared from, by weight, 0.08%-0.1% of citric acid, 0.085%-0.12% of L-cysteine, 0.025%-0.035% of nisin, 0.1%-0.12% of potassium sorbate and a solvent water. According to the preservation method of the drone pupae, the length for preservation reaches 16 days, all physical and chemical indicators of the drone pupae subjected to preservation meet the standard requirement of fresh drone pupae in the national standard, pupa bodies are milk white or light yellow and glossy, have the original flavor of the drone pupae and do no have peculiar smell, and SOD is larger than or equal to 1,100 U / g.

Description

technical field [0001] The invention belongs to a food preservation method, in particular to a preservation method for drone pupae. Background technique [0002] Drone pupae are unfertilized eggs laid by the queen bee in the drone house. They are hatched and nurtured by worker bees to become larvae. After about 7 days of growth and development, they enter the pupal stage. The pupal body is milky white or light yellow, the wings and feet are free, and the compound eyes are white and gradually change from light purple to dark brown. It has the unique smell of drone pupae and has no peculiar smell. Drone pupae are rich in nutrients and high in active substances. In 100g of dry matter, crude protein content > 40g, flavonoids > 40mg, superoxide dismutase (SOD) enzyme activity > 1000U / g, in addition, it also contains lipids and carbohydrates compounds, rich in minerals and vitamins etc. Protein contains 18 kinds of amino acids, high in glutamic acid and aspartic acid, a...

AI Technical Summary

Problems solved by technology

[0005] Finally, as mentioned above, the existing preservation methods of bee pupae have a great influence on the original flavor and nutrition of drone pupae, such as the soaking method, which not only aggravates the loss of nutrition in drone pupae, but also increases unnecessary foreign ingredients in pupae, which does not take into account Changes of Active Substances in Bee Pupa

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