Storage method for bombyx mori cocoons

Abstract

The invention discloses a cold storage method for bombyx mori cocoons, which is characterized in that the cold storage method comprises the following steps of: collecting the bombyx mori cocoons mounted for 5-7 days, soaking the bombyx mori cocoons in saline solution with the concentration of 15-25% for 24-72h, and taking out the bombyx mori cocoons for natural dehydration to air drying; and in the soaking process, the bombyx mori cocoons are lifted every other 12h, and then immersed again. Compared with the prior art, the storage method has the advantages that the input cost is low, the technical processing is convenient, the reelability can be improved, the raw silk grade is increased, the production cost is lowered, and the shortage of labor is reduced.

Description

technical field [0001] The invention relates to a method for preserving silkworm cocoons, in particular to a method for preserving silkworm cocoons. Background technique [0002] silkworm( Bombyx mori L.) has been domesticated in my country for more than 5,700 years. It belongs to the complete metamorphosis insect of Lepidoptera Boriidae, and its generations include egg, larva, pupa and adult (moth). The larva spins silk and forms a cocoon in the later stage, and pupates in the cocoon, and the pupal period is about 15 days. The traditional craft is to collect the formed cocoons, and use high-temperature baking to kill the live pupae in the cocoons, so as to achieve the purpose of long-term preservation of silkworm cocoons, and provide raw material cocoons for the silk reeling industry. [0003] Due to the strong seasonality of silkworm production, the cocooning time of silkworm cocoons is very concentrated. It is required that the silkworm cocoon purchase unit (cocoon ...

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Problems solved by technology

[0003] Due to the strong seasonality of silkworm production, the cocooning time of silkworm cocoons is very concentrated. It is required that the silkworm cocoon purchase unit (cocoon station) must finish drying all silkworm cocoons within one week. The moth phenomenon, the formed "moth mouth cocoon" loses its due value because it cannot be reeled normally

After the cocoon station has invested a lot of money in the purchase of cocoon drying equipment (at present, each automatic cocoon drying equipment is nearly 300,000 yuan), it is generally only used twice a year (spring and autumn), and the accumulated use does not exceed 15 days a year. very low rate

[0004] In addition, because high temperature is used to kill live pupae, the sericin protein in the outer layer of cocoon silk will be denatured in response to high temperature, resulting in a decrease in the unwinding rate during the silk reeling process, which directly affects the production of raw silk; due to high temperature baking, technical requirements High, complicated operation, improper operation will cause the pupal body to rupture, the pupa oil and its contents will flow out, pollute the cocoon layer, and will form bad cocoons such as mimeograph cocoons and macular cocoons, which will affect the quality of raw silk:

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