阅读说明：本技术 一种颗粒淀粉的生产方法 (Production method of granular starch ) 是由 王克忠 于 2020-08-06 设计创作，主要内容包括：本发明属于生物技术领域,具体是一种颗粒淀粉的生产方法,包含如下步骤：将1-2份自制或市购的酸浆与1份自制或市购的物理法淀粉在发酵罐中混合、发酵4-8小时,保持发酵温度为35℃,pH值4,发酵期间始终保持轻微搅拌；混合物转移至容器中静止2-4小时,去除上清液得到湿淀粉团；湿淀粉团破碎,得到5mm*5mm左右的湿块状淀粉；湿块状淀粉摆盘并置于60-70℃的烘箱中烘干8 h,得到颗粒淀粉成品。与现有技术相比,本发明使得物理法制得的淀粉质量提高到酸浆法的水平,同时省工省时,提高生产效率。(The invention belongs to the technical field of biology, and particularly relates to a production method of granular starch, which comprises the following steps: mixing 1-2 parts of self-made or commercially-available physalis alkekengi and 1 part of self-made or commercially-available physical method starch in a fermentation tank, fermenting for 4-8 hours, keeping the fermentation temperature at 35 ℃, keeping the pH value at 4, and keeping slight stirring all the time during the fermentation; transferring the mixture to a container, standing for 2-4 hours, and removing supernatant to obtain wet starch clusters; crushing the wet starch dough to obtain wet block starch with the thickness of about 5mm by 5 mm; placing the wet block starch in a tray, and drying in an oven at 60-70 ℃ for 8h to obtain a finished granular starch product. Compared with the prior art, the invention improves the quality of the starch prepared by a physical method to the level of a sour pulp method, saves labor and time and improves the production efficiency.)

1. A process for the production of granular starch, comprising the steps of:

mixing 1-2 parts of self-made or commercially-available physalis alkekengi and 1 part of self-made or commercially-available physical method starch in a fermentation tank, fermenting for 4-8 hours, keeping the fermentation temperature at 35 ℃, keeping the pH value at 4, and keeping slight stirring all the time during the fermentation;

transferring the mixture to a container, standing for 2-4 hours, and removing supernatant to obtain wet starch clusters;

crushing the wet starch dough to obtain wet block starch with the thickness of about 5mm by 5 mm;

placing the wet block starch in a tray, and drying in an oven at 60-70 ℃ for 8h to obtain a finished granular starch product.

2. The method for producing granular starch according to claim 1, wherein the ratio of the self-made or commercially available kraft pulp to the self-made or commercially available physical process starch in step (1) is 1.66: 1.

Technical Field

The invention belongs to the technical field of biology, and particularly relates to a production method of granular starch.

Background

The existing starch production process mainly comprises an acid slurry method and a physical method, and the two methods have the advantages and disadvantages: the extraction of starch by acid pulp method is to utilize the microorganism in acid pulp to agglutinate starch grains into lumps for precipitation, and simultaneously utilize the lactic acid in the acid pulp to keep certain pH value in the precipitation process of dregs, so as to be beneficial to the separation of starch from other impurities such as protein, cellulose and the like. The starch with high purity is obtained through multiple times of precipitation and washing, but the production cycle is long, the yield is low, and is generally about 40%. The physical method is to grind the materials and then dissolve the materials in water by using alkali and acid to obtain the starch, the yield is higher and is generally about 48 percent, but the purity of the starch is poorer than that of the starch obtained by an acid slurry method, and the wettability and the toughness are also insufficient.

In addition, in the existing starch production process, starch is generally packaged after being dried and screened, and the process has high dust content, is relatively polluted and is easy to generate dust explosion, thus seriously threatening the health and production safety of workers and people in a starch production workshop. Therefore, some enterprises need to equip the dust removal system for plant dust removal, which causes additional costs.

Disclosure of Invention

In order to overcome one of the defects or shortcomings of the prior art, the invention discloses a production method of granular starch, which adopts the following technical scheme:

not only solves the problem of overhigh dust concentration in the production process, but also solves the problem of low quality of starch produced by a physical method. The technical scheme adopted by the invention is as follows:

a process for the production of granular starch comprising the steps of:

(1) mixing 1-2 parts of self-made or commercially-available physalis alkekengi and 1 part of self-made or commercially-available physical method starch in a fermentation tank, fermenting for 4-8 hours, keeping the fermentation temperature at 35 ℃, keeping the pH value at 4, and keeping slight stirring all the time during the fermentation;

(2) transferring the mixture to a container, standing for 2-4 hours, and removing supernatant to obtain wet starch clusters;

(3) crushing the wet starch dough to obtain wet block starch with the thickness of about 5mm by 5 mm;

(4) placing the wet block starch in a tray, and drying in an oven at 60-70 ℃ for 8h to obtain a finished granular starch product.

As a preferred scheme, the ratio of the self-made or commercially available sour pulp to the self-made or commercially available physical process starch in the step (1) is 1.66: 1.

Compared with the prior art, the invention has the following outstanding technical effects:

(1) the traditional granular starch production process is upgraded and improved, the starch produced by a physical method is modified by using microorganisms in the acid pulp, the separation of the starch from other impurities such as protein, cellulose and the like is facilitated, and due to the addition of beneficial bacteria, the granular starch has high infiltration speed when being kneaded, and the starch has high gluten degree, so that the quality of the starch prepared by the physical method is improved to the level of the acid pulp method, and meanwhile, the labor and time are saved, and the production efficiency is improved.

(2) The wet crushing reduces the working procedures, reduces the labor intensity of workers, reduces the dust concentration in a workshop, improves the workshop environment, realizes clean and safe production, greatly reduces the pollutant discharge, improves the sanitary standard on the premise of ensuring the production progress and the product quality, and conforms to the assumption that the national green water Qingshan is the Jinshan Yinshan.

Detailed Description

Mixing 1.66 tons of sour pulp (byproduct produced in the process of extracting starch by sour pulp method, which can be purchased in market and has very low price) with 1 ton of dry starch produced by physical method (also can be purchased in market), fermenting in a fermentation tank for 4-8 hours, keeping slight stirring all the time during the fermentation process, and keeping the fermentation temperature at 35 ℃ and pH at 4. And after the fermentation is finished, crushing the obtained mixture in a crusher to obtain wet block starch with the thickness of about 5mm x 5mm, placing the wet block starch in a drying oven at the temperature of 60-70 ℃ for drying for 8 hours to obtain a finished granular starch product, wherein the weight of the finished product is still 1 ton. Not only reduces the production period, improves the efficiency and reduces the labor intensity, but also the finished product can completely reach the quality level of extracting starch by an acid pulp method.