A kind of technological method of using turmeric to cleanly produce saponin

Abstract

The invention provides a process for clean production of saponin by utilizing turmeric. The technical scheme comprises the following steps: smashing the turmeric, separating out starch from the smashed turmeric by using a frequency conversion speed difference horizontal type spiral unloading precipitation centrifuge, naturally fermenting a saponin slurry for 24-48 hours, carrying out acidic hydrolysis on the fermented saponin slurry, and then carrying out acid washing and dewatering with a filter press; drying with a vacuum dryer, extracting, concentrating and crystallizing so as to obtain a finished product; separating out fiber in the extraction process; and discharging sewage which is generated in the filter pressing process to a neutralizing tank for neutralization reaction, introducing the neutralized sewage into an electrolysis device for electrolysis, introducing the electrolyzed sewage into a hydrolysis anaerobic tank for treatment, then introducing the obtained product into three push flow type aeration tanks which are connected in series for biological reaction treatment, and finally introducing into a precipitation pool for precipitation, wherein treated water completely reaches a standard and circularly used in a link which needing water in the saponin production process by utilizing the turmeric. The process steps in the invention are simple; and after treatment, waste water can be subjected to cyclic utilization so as to save a large amount of water, thereby achieving clean production.

Description

technical field [0001] The invention relates to a process method for cleanly producing saponin by utilizing turmeric. Background technique [0002] At present, the saponin produced is mainly proposed from turmeric. Turmeric 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 environmental conditions requires 150 tons of fresh turmeric and 20 tons of hydrochloric acid to produce one ton of saponin, and produces more than 500 tons of high-concentration wastewater, with a pH value of 1.0-2.5. Therefore, the traditional process has high production costs, high labor intensity, and low product quality. Difficult to control, especially serious environmental pollution, huge cost of waste water treatment, has affected the development of my country's turmeric industry. Contents of the invention [0003] In order to solve the short...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of producing a large amount of waste water and high production costs in the existing method for producing saponin by using turmeric