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Method for producing dioscin by directly extracting saponin without pollution

A diosgenin, non-polluting technology, applied in the field of phytochemical engineering, can solve the problems of large waste water, high production cost, difficulty in dehydration and concentration, and achieves the effects of simple process steps, reduced waste water discharge, and easy concentration.

Inactive Publication Date: 2007-07-11
王元华 +1
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Problems solved by technology

[0004] In order to solve the shortcomings of producing a large amount of waste water, difficulty in dehydration and concentration, and high production cost in the existing method for producing saponin from dioscorea, comprehensively utilize resources, reduce production cost while making the production environment harmless, the present invention proposes pollution-free direct extraction of saponin Method for producing diosgenin

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  • Method for producing dioscin by directly extracting saponin without pollution

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Embodiment Construction

[0013] According to the process flow diagram shown in Fig. 1, describe the present invention in detail as follows:

[0014] (1), raw material pretreatment: including cleaning, crushing and refining, specifically cleaning yams with clear water, crushing with a crusher, grinding into a slurry with a mill after crushing, so that the particles of the yams pulp reach 40-150 mesh, and the concentration is 5 -12%; the mill adopts double disc mill or cone mill;

[0015] (2) Extraction of saponin pulp: use cyclone separation, specifically multi-stage cyclone group, to separate saponin with lighter specific gravity from fiber and starch to obtain saponin pulp, and then use the mixed pulp of fiber and starch as alcohol or feed ;

[0016] (3), dehydration and concentration: dehydration with filter or manual filtration, remove about 70%-80% of water, get concentrated saponin pulp;

[0017] (4), as shown in Figure 1, concentrate the saponin slurry to the processing of finished product and...

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Abstract

The technological process of extracting saponin to produce dioscin includes the following steps: pre-treating yam material through washing, crushing, milling to form yam slurry of concentration 5-12 % and granularity 40-150 mesh; separating lighter saponin from fiber and starch in multistage cyclone to obtain saponin slurry; filtering to eliminate 70-80 % of the water to obtain concentrated saponin slurry; and conventional treatment of concentrated saponin slurry through acid hydrolysis, extraction, concentration and crystallization to obtain the product. The present invention has simple technological process, low production cost, no environmental pollution, and high product yield and quality.

Description

technical field [0001] The invention belongs to the field of phytochemical engineering, and in particular relates to a method for directly extracting saponin without pollution to produce diosgenin. Background technique [0002] Dioscin is the basic raw material for the synthesis of various steroidal drugs such as anti-inflammatory hormones, progesterone, and sex hormones. Glucocorticoids, in particular, have anti-inflammatory, anti-allergic, anti-shock, anti-drug and anti-cancer effects, and are indispensable main drugs widely used in medicine. [0003] At present, the diosgenin produced in my country accounts for 50% of the world's total, and it is mainly proposed from Dioscorea scutellaria. Dioscorea scutellaria plant fiber accounts for 35-40%, starch accounts for 45-50%, water-soluble substances account for 10%, saponin content only accounts for 1-2.5%, and it is difficult to separate and extract. Hydrolysis under high pressure and high acid environment requires 150 tons...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J71/00
Inventor 王元华郭敏霞
Owner 王元华