Applications of dioscin and Sophora alopecuroides total alkali in preparation of snail killing agents
A technology of diosgenin and molluscicide, which is applied in the field of molluscicide preparation, can solve problems such as water pollution, achieve the effects of no environmental pollution, simple production and preparation process, and enhanced molluscicide efficacy
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Embodiment 1
[0030] Turmeric Diosgenin Extract
[0031] Dry the turmeric and crush it, add 75% ethanol solution to extract at 80°C for 6 hours, and dry the extract by rotary evaporation to form a powder. HPLC detection shows that the content of diosgenin is 72.7%.
[0032] The extraction of diosgenin in turmeric can be done by alcohol extraction or biological enzyme preparation. In this example, a simple and non-toxic ethanol aqueous solution extraction method is used.
Embodiment 2
[0034] Total Alkaline Extraction of Sophora Sophora
[0035] Grind the bitter beans into powder, pass through a 60-mesh sieve, soak in hydrogen chloride with a mass fraction of 0.5 for 12 hours, filter and take the filtrate, concentrate under reduced pressure to form a paste, dissolve it in an ethanol solution with a volume fraction of 85%, and let it stand for 12 hours to take the filtrate , concentrated under reduced pressure into a paste, alkalized with ammonia water to pH 9-10, added NaCl to saturation, extracted several times with chloroform, collected chloroform, placed in rotary evaporation at 50°C and dried into powder, TLC detection containing Sophora flavescens Alkaline, oxymatrine, sophocarpine, oxidized sophocarpine, sophoramine, sophodine, HPLC detection, the total alkaloid content of Sophora japonica in the powder is 43.75%.
Embodiment 3
[0037] Dioscin saponin laboratory dipping experiment to kill molluscs
[0038] Experimental Materials:
[0039] Oncomelania: Collected from Dantu Oncomelania breeding waters in Zhenjiang, Jiangsu, snails with 7-8 spirals, no schistosomiasis infection, negative and healthy snails.
[0040] Experimental method: Dip to kill molluscs Experiment:
[0041] Laboratory: the diosgenin powder obtained in Example 1 is respectively configured into 10, 15, 20, 25, 30mg / L mass concentrations of medicinal liquids with dechlorinated tap water, and each mass concentration medicinal liquid is divided into 3 groups on average, poured respectively Put into 500ml beaker, every cup 300ml, put into respectively 30 of the selected Oncomelania snails in every beaker, be provided with dechlorinated tap water blank control group. Room temperature is 23±1°C, observe the climbing rate for 3 hours, and after soaking for 24 hours, 48 hours, and 72 hours respectively, take a cup of snails from each group...
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