Method for storing mulberry cocoon

Abstract

The present invention discloses a method for storing mulberry cocoons, wherein the method comprises the following steps: (1) collecting the mulberry cocoons, and eliminating the inferior mulberry cocoons; (2) tiling the fine cocoon on a cold preservation box with ventilating openings, transferring into an ice house for cold preservation and executing shading protection; and (3) timely changing the air of ice house, wherein the temperature of ice house is 4-8 DEG C, and the relative moisture is 60-70%. The method of the invention can store the mulberry cocoon with a long time and avoids the negative effect of high-temperature baking method. Furthermore the reelability percentage of cocoon can be increased for more than 10%. The production volume and quality of raw silk are increased. The cleanliness of raw silk can be increased for 1-2 scores.

Description

technical field [0001] The invention relates to a storage method, in particular to a method for storing 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 Bombyridae, 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. In order to obtain complete cocoons, 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 cocoons for the silk reeling industry. [0003] However, due to the strong seasonality of silkworm production, the cocooning time of silkworm cocoons is very concentrated, so it is required that the silkworm cocoon purchasing uni...

AI Technical Summary

Problems solved by technology

[0003] However, due to the strong seasonality of silkworm production, the cocooning time of silkworm cocoons is very concentrated, so it is required that the silkworm cocoon purchasing unit (cocoon station) must complete the high-temperature drying of all silkworm cocoons within 1 week, otherwise it will be destroyed. Moth phenomenon occurs, forming "moth mouth cocoon", because "moth mouth cocoon" cannot be reeled normally, it loses its due value

It can be seen that the automatic cocoon drying equipment used in the cocoon station is generally only used twice a year (spring and autumn), and the accumulated use does not exceed 15 days a year, so the utilization rate is very low; at the same time, the price of this automatic cocoon drying equipment is relatively low. High (at present, each automatic cocoon drying equipment is about 90,000 yuan), resulting in idle equipment and a waste of funds

[0004] On the other hand, due to the high-temperature baking method used to kill the live pupae in the cocoon, the sericin protein in the outer layer of the cocoon silk will be denatured due to high temperature, resulting in a decrease in the unwinding rate during the silk reeling process, which directly affects the production of raw silk

In addition, this high-temperature drying method requires high technical requirements and complicated operations. Improper operation will cause the pupae to rupture, pupae oil and its contents to flow out, pollute the cocoon layer, and form bad cocoons such as mimeograph cocoons and macular cocoons, which will affect the quality of raw silk.