Method for preparing high-content beta-sitosterin products by catalytic hydrogenation
A sitosterol, high-content technology, applied in the directions of organic chemistry, steroids, etc., can solve the problems of difficult industrial application, low yield, etc., and achieve the effects of low production cost, simple method operation, and environmental protection requirements.
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[0013] Embodiments are provided in conjunction with the steps of the method:
[0014] 1. The mixed phytosterol raw material that adopts is: the mass purity of total sterol is 92.6%, is a kind of phytosterol from soybean oil deodorization distillate. Wherein brassicasterol 5.68%, stigmasterol 28.29%, campesterol 21.23%, β-sitosterol 41.75% (mass percentage).
[0015] 2. Take 1 g of the above-mentioned mixed phytosterols, place them in a 150 ml glass hydrogenation conical flask, add 50 ml of analytically pure n-butanol reagent, and fully dissolve the phytosterols in the solvent.
[0016] 3. Add 4% (mass percentage) of Raney-Ni (nickel) as a catalyst for the hydrogenation reaction, and install a hydrogenation device and a magnetic stirring device. The reaction conditions are normal temperature and pressure, the reaction time is 6 hours, and the reaction process uses magnetic stirring at a speed of 90 rpm. It is advisable that the catalyst can be stirred uniformly in the whole r...
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