Guava leaf and new application of extract thereof
A technology of guava leaves and extracts, which is applied in the fields of chemicals for biological control, medical preparations containing active ingredients, applications, etc., can solve problems such as unfavorable shrimp living environment stability, damage to the ecological balance of shrimp ponds, etc., to achieve Prevention of virus transmission, less drug resistance and drug residues, less likely effect
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Embodiment 1
[0010] The preparation of embodiment 1 guava leaf powder
[0011] Get guava leaf 10g, pulverize according to the conventional method, sieve and make guava leaf powder, subpack after sterilization, directly sprinkle in the mariculture water body when using and make the concentration of guava leaf powder in the culture water body be 1-100g / ton of water is enough.
Embodiment 2
[0012] The preparation of embodiment 2 guava leaf water extract
[0013] Take 1g of guava leaves, crush and sieve, soak in 99mL of water, soak at room temperature for 24 hours, then autoclave at 121°C for 20min, centrifuge at 5000g for 15min to remove the medicinal residues, store it in a sealed container at 4°C as a stock solution, and store it for later use. The concentration of the guava leaf extract is equivalent to 10mg / mL. When used, it is directly thrown into the seawater aquaculture water body and the concentration of the guava leaf extract in the aquaculture water body is 1-100g / ton of water.
[0014] The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplification should be equivalent replacement methods, and all are included in the protection scope of the present invention. ...
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