Nano selenium of chitin and its preparation method
A technology of chitin and nano-selenium, which is applied to the active ingredients of sulfur/selenium/tellurium, cardiovascular system diseases, skin diseases, etc., can solve the problems of narrow range between nutrient dose and toxic dose, and difficulty in controlling the effective dosage. Achieve the effect that the preparation method is simple and easy
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[0023] 1. Take 0.05g of sodium selenite or sodium biselenite and dissolve it in water, then evenly spray it into 5g of chitosan powder or chitosan oligosaccharide powder to make it moist, and finally spray vitamin C solution while stirring until The red color of the mixture does not change, and the product is obtained by vacuum drying to remove moisture.
[0024] 2. Take 0.05g of sodium selenite or sodium hydrogen selenite and dissolve it in water, add an aqueous solution containing 5g of chitosan or chitosan oligosaccharide under stirring, then add vitamin C or its solution until the red color of the reaction solution does not change, and depressurize Distillation to remove moisture that is the product.
[0025] 3. In embodiments 1 and 2, starting materials can be used to prepare sodium selenite or sodium biselenite solution earlier, and the reaction product does not need to be separated, and is directly used to prepare chitin nano-selenium. This is to use selenium dioxide, ...
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