Starch extraction

Process Sequence to obtain Starch

Reception and weighedrecepc
When tubers arriving from growing areas, it have to be received and wearing in a platform scale.
 
Storage
The storage of raw materials should be divided into sections to separate  deliveries.
 
 Transport and Selection
selecc
Potatoes are transported by conveyor belts from storage toward the washing machine. The selection is done visually along the conveyor belt, removing  tubers which are not suitables.
 
 
 
 
 
Washing and peelinglav_pel
In the washer-peeler, tubers are washed and peeled perfectly using water, the peel is peeled by abrasion. The clean and peeled Potato pass to the  mill.
 
 
 
 

Millingmolino

The Potato is carried by a conveyor belt to the Super Rasp mill, where they are shredded to turn them into a fine paste (cream).

 

 

 

 

Starch extraction
bateriahc

Starch is separated from the pulp using a multiple extractor. This machine, using centrifugal force, sieve (separates) the starch from the cellulose (bran or fiber).

 

Washing and concentration of starch

 "The slurry" which comes from the extractors contain proteins, fat, and insoluble substances and is receptioned in a tank  which is transferred by a pump to hydrocyclones to remove all the water, wash and concentrate.

 
Dewateringcentrif
The starch is carried to the centrifuges until a humidity of 38% and then using a worm carried to the Flash Dryer machine.
 
 
 
 
 
 
Drying
secad
The wet starch is dried by a flow of hot air.
 
Sieving
The starch was sieved in a sieving machine 
 
 
 
 
Bagging and weighing
almacenam
The sifter has a feeder through which the starch is packed in polypropylene bags and then weighed.
 
Storage
The starch obtained should be stored in a cool dry place..