Pollution-free production method for processing saponin from dioscorea zingibernensis

Abstract

The invention relates to a no pollution method for ginger processed saponin. It includes the following steps: washing yam, smashing, and grinding to slurry; depositing and separating to gain saponin slurry; acid hydrolysis saponin slurry; neutralizing and pressing, controlling the temperature at 40-80degree centigrade, pressure at 0.2-0.8MPa; distilling saponin. The waste water process method includes the following steps: taking fluid bed biology film process to the filtrate, accessing to compounding bacterium, the processed waste water could be directly discharged.

Description

technical field [0001] The invention relates to a pollution-free production method of processed turmeric saponin. Background technique [0002] Yellow ginger is a unique species in my country, and its rhizome contains a certain amount of saponin which can be hydrolyzed to obtain saponin. Saponin is an important pharmaceutical and chemical raw material for the synthesis of steroid hormones. It can synthesize more than 200 kinds of drugs in three categories: progesterone, anabolic hormone and adrenocortical hormone. Therefore, extracting saponin from turmeric has great pharmacological and market value. Since the 1970s, the process of processing turmeric saponin has generally been to wash and crush the turmeric into a slurry, then ferment the slurry naturally, then add acid hydrolysis to the fermentation product to hydrolyze the saponin to produce saponin, and then wash After removing the acid water, dry it, and then use No. 120 gasoline to extract the saponin. This technolo...

AI Technical Summary

Problems solved by technology

This technology has been used for many years, and its main problems are that the production technology is backward; the production cycle is long; the consumption of raw materials is large; the pollution is particularly serious; The extraction rate of saponin is 1.8-2.0%; the quality of the product is poor, and the melting point of the product saponin is generally 193-195°C; the labor intensity of the workers is high

According to statistics, for the production of 1 ton of saponin, 130-180 tons of turmeric is required, 400-500 tons of waste water is produced, the COD of waste water is as high as 90000 mg / l, the BOD of 18000 mg / l, and the pH value of waste water is 1.0-2.5. Because 90% of the raw material base of the enterprise is concentrated in the upper reaches of the Han River in the South-to-North Water Diversion Project, the discharged waste water has caused great pollution to the water environment and directly affected the water quality in the Danjiang reservoir area.

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