A clean and efficient production process of diosgenin

Abstract

The invention provides a clean and efficient diosgenin production technology .The production technology comprises the steps of extracting dioscin coarse powder from fresh yellow ginger, conducting acidolysis on the dioscin coarse powder, then adding 1-50 times, by weight, of carbonate, a mixture of carbonate and silica gel powder, or a mixture of carbonate and perlite fine powder for sufficient mixing to obtain a dry muddy mixture, conducting drying and smashing to obtain mixture fine powder, and extracting the mixture fine powder with 120# gasoline or petroleum ether to obtain diosgenin .Powder obtained after diosgenin extraction serves as boiler fuel to be burnt .Residues obtained after diosgenin extraction are rich in starch and can be used for selenium-enriched fermentation to produce ethyl alcohol, and residues obtained after ethyl alcohol production through selenium-enriched fermentation can be used for making fertilizer or feed special for yellow ginger .Residues obtained after alcoholic fermentation are further dried to make selenium-enriched feed or selenium-enriched fertilizer .During diosgenin production, acid neutralization or washing is not needed, and acid water discharging is completely avoided.

Description

technical field [0001] The invention belongs to the field of biochemical industry and relates to a clean and efficient production process of diosgenin, in particular to a highly efficient and pollution-free production method of diosgenin. Background technique [0002] Diosgenin is an important pharmaceutical raw material. More than two hundred kinds of drugs can be synthesized by using diosgenin, which has a wide range of uses. Diosgenin is mainly present in the rhizomes of Dioscorea plants in the form of diosgenin. Dioscorea scutellaria is mainly cultivated in my country, and the rhizome of Dioscorea scutellaria is harvested to prepare diosgenin. The key technology for preparing diosgenin from the rhizome of Dioscorea shield leaf is to adopt a suitable method to break the glycosidic bond of diosgenin and desugar to obtain diosgenin. [0003] At present, the preparation methods of diosgenin mainly include acid hydrolysis, biological hydrolysis (enzymatic hydrolysis) and r...

AI Technical Summary

Problems solved by technology

The environmental pollution problem caused by extracting diosgenin from turmeric has always been the bottleneck of the industry

About 500 tons of strong acid wastewater will be produced for every ton of saponin produced. The COD concentration in the wastewater is about 32,000 mg / liter, and its pollution level is 12 times higher than that of papermaking wastewater. After treatment, the COD content in the wastewater can be reduced to 500 to 800 mg / L or so, but this is still far below the COD content of 100 mg / L stipulated in the first-level standard for the comprehensive discharge of corporate sewage

Perennial sewage can lead to difficulty in drinking water for humans and animals, reduce crop production, and destroy forests and vegetation, lead to soil acidification, affect groundwater, and pollute water sources.