Uses of cassava starch processing byproducts

 


The by-products of cassava starch processing are mainly residues, yellow powder (mainly protein), cell liquid and waste water. The dry matter content of these substances accounted for about 40% of the dry matter quality of the tuber. Dried cassava residue contains about 50% starch, more than 15% fiber, 3% soluble carbohydrate, and about 10% pectin. The cell fluid yield is 50% - 55% of the potato weight. The dry matter concentration in the cell fluid is between 45% and 70%, of which about 40% are nitrogenous compounds, 25% are soluble carbohydrates, and 20% are minerals. In addition, the cell fluid contains a small amount of organic acids, trace elements, vitamins and other substances. About 80% of the nitrogenous substances and more than 60% of the minerals in the cassava are transferred to the cytosol.【Recommended reading: Modern cassava starch processing】

cassava starch production 

Cassava and cassava starch

In developed countries, cell fluids are exploited as valuable materials. The cell fluids are separated immediately after the potato pieces are crushed, and then the starch slurry is washed with water. The separated cell fluid is further processed into various products, and the remaining wastewater is used to irrigate the farmland. The utilization of cassava starch production by-products in developing countries is currently limited to waste potato residues or even directly discarded. The use of cell fluids is not separated and utilized. Instead, cell fluids are discharged together with waste water. This is not only a resource wasting, but also easy to cause environmental pollution. In the future, the starch processing technology should be reformed, and the comprehensive utilization of the byproducts of cassava starch processing should be emphasized.

cassava starch processing 

Cassava starch processing byproducts for animal feed

For example, in China, The use of by-products in potato starch processing in rural is:

1. Potato residue and yellow powder are used as feed for pigs or cattle, and pulp water is drained (only a few households use a small amount of thick slurry to feed cattle)

2. Large-scale starch plants are the industrial raw materials for the dehydration and drying of potato residues as wine, alcohol and citric acid.

For your cassava starch production business, you can make this as a reference to improve the ecnomic benefit. But it is not difficult to see that China's use of potato starch processing by-products is not sufficient and there is still great potential to be exploited.

cassava starch machine in ChinaWelcome to DOING for cassava starch machine

Actually, there are better idea for the uses of cassava starch processing byproducts,for cassava grows in value,below is the introduction:

1. Cassava residue made as protein feed:

Material: cassava residue, remnants, Aspergillus niger and Geotrichum species

Process: sterilization of cassava residue and reconstituted compound - inoculation - fermentation - drying.

2. Cassava residue making wine:

The content of starch in cassava slag is 45%-55% of the weight of dry matter, and the structure of starch is loose, which is conducive to cooking and pasting. Winemaking with potato waste not only has a high wine yield, but also can make full use of the potato waste.

(1) Cassava residue liquor

Raw materials: residue, koji. The cassava residue should be selected from fresh, clean, dry, and mildew-free cassava residues and crushed into powder.

Process: raw material grinding - cooking - mixed koji fermentation - distillation - finished products

(2) Cassava residue with rice wine

Raw materials: fresh cassava residue, Daqu, fennel, pepper, bamboo leaves, tangerine peel and so on.

Process: raw material - cooked - cooling - mixed song - fermentation - distillation - filter - aging

Whatsapp/Phone/Wechat: +86 135 2661 5783
Email: sales@doingmachinery.com
Website:https://www.cassavaprocessing.com

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