Isolation of starch from sweet potato process

The sweet potato is a good material for isolation of starch from sweet potato process because it has a high starch content, but contains less protein and fat, and the starch content is 15-25%. Some unique properties of sweet potato starch are not replaceable by other starches, so they are widely used in the food industry. Meanwhile because of their good edible properties, they are more widely used in the field of starch processing industry.

Isolation of starch from sweet potato process

Here is the brief introduction of isolation of starch from sweet potato process

1. Cleaning and washing section: The mainly equipped potato starch processing machine in this section includes: primary cleaning machine which is also called dry sieve and rotary washing machine for washing process. This is the first important step for the isolation of starch from sweet potato process. After the raw materials are processed separately in these machines, the washed sweet potatoes reach the requirement to enter the next stage. The main features of this section is: continuous workability, large processing capacity and low power and water consumption.

2. Crushing section: This is the most important step for isolation of starch from sweet potato process. The rasper is used to crush the sweet potato into slurry so as to release the free starch in the sweet potato cell. The extraction rate of starch is determined by this machine. DOING rasper is an advanced rasping machine which fully absorbs technology from home and abroad, and the breakage rate can reach at around 95%.

Sweet potato crushing machine

3.Screening section: This is another important procedure for isolation of starch from sweet potato process. And in this section, the equipment mainly equipped are: centrifuge sieve, fine fiber sieve and desander. The sweet potato starch slurry that sent from rasper is separated from fibers and sand impurities in this section. It has the characteristics of stable running, simple operation, good separation effect, large processing capacity and continuous feeding.

4. Concentration and refining section: The main purpose of this section for isolation of starch from sweet potato process is to achieve the concentration, refining and recycling of starch. The equipment mainly equipped in this section is: 14-stage hydrocyclone cyclone, two-stage concentrating cyclone, ten-stage (more grade according to requirement) refining cyclone. This section is the most technologically advanced section of the entire production line for isolation of starch from sweet potato process, so it is also the key to determining the quality of the starch.

Sweet potato starch refining machine

5. Dehydration and drying section: Then it is the final step for isolation of starch from sweet potato process. The equipped machines are vacuum filter and flash dryer. The vacuum filter mainly for dehydrating water to reduce water content in starch milk. And the drying process is carried out by the principle of negative pressure. The wet starch is mixed with hot air into the air duct, and after entering the drying requirement, it enters the cyclone separator and is then packaged into the storage.

And the following is the remarkable features of DOING isolation of starch from sweet potato process

1. Since the sweet potato pieces are broken thoroughly by DOING advanced crushing machine, the free starch rate is particularly high, and the separation effect of the centrifuge sieve is remarkable, so the starch extraction rate of DOING isolation of starch from sweet potato process is obviously improved.

2. Under the premise of ensuring the starch yield, the quality of the starch is higher than that of the starch produced by other methods. Because the entire isolation of starch from sweet potato process after the crushing is carried out in the closed system, which not only reduces the pollution of the extraneous objects, and decreases degree of oxidation.

3, The improvement of the degree of automation, not only makes the operation simple and convenient, but also reduces labor intensity, meanwhile, the working environment is significantly improved.

Sweet potato starch processing plant

Doing Company as a professional and experienced sweet potato starch processing machines manufacturer, our can provide advanced processing technology and equipment for isolation of starch from sweet potato process. And we can provide customers with a turnkey project from design, manufacturing, installation, commissioning to personnel training and after-sales service. Welcome contact us and visit our factory.