Grain insect-proof extract and preparation method thereof and household grain insect-proof sticker

Abstract

The invention discloses a grain insect-proof extract comprising the raw materials: 50%-60% of Chinese prickly ash, 15%-20% of folium artemisiae argyi, 10%-20% of fennel, and 10%-15% of star anise. Thepreparation method of the extract comprises the steps: taking the raw materials, drying, crushing, uniformly mixing, soaking in 95% ethanol for 18-36 h, taking the filtrate, and carrying out vacuum rotary evaporation in a water bath at the temperature of 65-85 DEG C under the vacuum degree of 0.075 MPa to obtain the extract; and adding lemon essential oil into the prepared extract. The inventionfurther discloses a preparation method of the grain insect-proof extract and a household grain insect-proof sticker. Active substances in the raw materials are concentrated, and the insect-resistant effect is improved. By adding the lemon essential oil, volatilization of active substances is facilitated, and the insect prevention effect is greatly improved. The insect-proof sticker is innovativelyadopted, the insect-proof effect can be achieved when the insect-proof sticker is stuck to a cabinet, the insect-proof sticker is not in direct contact with grains, and the purposes of safety, sanitation and convenience in replacement are truly achieved in the household use process.

Description

technical field [0001] The invention relates to the technical field of grain insect control, in particular to a grain insect control extract, a preparation method thereof and a household grain insect control sticker. Background technique [0002] Grain is easily contaminated with insect eggs during planting and processing, and these eggs are very small and difficult to remove. In summer, especially under high temperature and high humidity conditions, these insect eggs begin to hatch into adults, and the edible grain reproduces rapidly, causing insect damage to the grain and reducing its hygienic quality. At present, in the process of grain storage, organic or inorganic phosphorus reagents are often used for fumigation to protect the grain, but this method is easy to cause solvent residues. After eating this kind of grain, it is not conducive to the health of consumers. [0003] There are also grain insecticides that use natural spices to be crushed and directly mixed into b...

AI Technical Summary

Problems solved by technology

In summer, especially under high-temperature and high-humidity conditions, these insect eggs begin to hatch into adults, and the edible grain reproduces rapidly, causing insect damage to the grain and reducing its hygienic quality

At present, in the process of grain storage, organic or inorganic phosphorus reagents are often used for fumigation to protect the grain, but this method is easy to cause solvent residues. After eating this kind of grain, it is not conducive to the health of consumers

[0003] There are also grain insecticides that use natural spices to be crushed and then directly mixed into bags or crushed and then granulated for use. However, the existing grain insecticide products are large in size, low in concentration of active substances that inhibit the development of insect eggs, and poor in volatility.

Moreover, it will also be in contact with powdery grain raw materials, which will easily pollute the grain

In addition, the existing grain insect repellent needs to be buried in the middle of the grain packaging when used, and it is troublesome to take out and replace, and it is not clean

[0004] This shows that above-mentioned existing food insecticide obviously still has inconvenience and defect in structure, method and use, and urgently needs to be further improved

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