Manufacture method for medicinal starch

Abstract

Provided is a manufacture method for medicinal starch, which belongs to manufacture technology of starch. The invention aims to overcome the problems that a microbiological index in medicinal starch is hard to control and that potential safety hazard exists because pneumatic drying and disinfection of medicinal starch is depended on a tower type pneumatic drying manner in the prior art. The invention is characterized by comprising the following sequential steps: choosing materials, that is, selecting dry maize starch; carrying out roasting and disinfection, that is, heating the dry maize starch to a temperature no less than 110 DEG C and no more than 160 DEG C, with a stirring roasting speed being 25+-5 times / min and time for stirring roasting being no less than 90 min; cooling the dry maize starch, that is, cooling the dry maize starch to a temperature less than 70 DEG C; sieving the dry maize starch, that is, sieving the dry maize starch with a 100 mesh screen; examining the dry maize starch according to an enterprise standard which is higher than a national standard; metering and packaging the dry maize starch; wherein, cleanliness of ambient air in the steps of roasting and disinfection, cooling, sieving and metering and packaging reaches 300,000 grades. According to results of embodiments, the microbiological index in a finished product is effectively controlled, and the qualified rate of the product stably increases to more than 99.5% from 85% obtained in the prior art; potential safety hazard in the process of drying and disinfection is tiny, and safe production is reliably realized.

Description

technical field [0001] The invention belongs to a starch manufacturing technology, in particular to a manufacturing method of medicinal starch. Background technique [0002] In the existing methods of producing medicinal starch, no matter whether the starch milk is obtained directly from the raw corn by soaking, crushing, and separation, or the starch milk is obtained by adding water to the dry corn starch, it is necessary to rely on the airflow drying method of tower type airflow drying to eliminate the starch milk. Bacteria, and then after sieving, sampling and inspection, it is measured and packaged to finally obtain the finished product of medicinal starch. [0003] Airflow drying, also known as instant drying, can quickly remove water from small particles and powdery wet materials that are easy to dehydrate, and the drying time is extremely short, only a few seconds or even 0.5 seconds. These prior art methods for producing medicinal starch that must be dried and steri...

AI Technical Summary

Problems solved by technology

This is because the airflow drying and sterilization process time in the tower airflow drying system is too short, and considering the scorching of corn flour, the airflow drying temperature should not be too high, and the inlet airflow temperature can only be below 160°C. After the exchange, the temperature of the outlet airflow is lowered to below 40°C. During the instant drying time, the temperature cannot be too high, and the killing effect of microorganisms is bound to be difficult to meet the requirements.

[0005] 2. There are potential safety hazards in the drying and sterilization process

In the process of airflow drying and sterilization, the dried medicinal starch flows with the high-speed airflow, and it is inevitable to rub against each other to generate static electricity. The dry starch particles dispersed in the flowing airflow are easily exploded by static sparks. The actual production facts show that, Occasionally, explosion accidents occurred due to inadvertent process control during starch tower air drying