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.

1. Uses of cassava starch
processing byproducts
Editor: Doing Company
Date:Feb. 13, 2023

2. Background Introduction
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.

3. Background Introduction
• 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.

4. Local cassava starch production

5. Cassava starch processing byproducts
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.

6. • 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 byproducts for animal feed

7. The use of by-products in potato starch
processing
• 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.

8. • 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.

9. potato strach processing steps:

10. The use of by-products in cassava starch
processing
• Actually, there are better idea for the uses of cassava starch
processing byproducts,for cassava grows in value,below is
the introduction:

11. • 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.

12. 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.

13. • (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

14. (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

15. Cassava starch processing projects

16. Contact us for more informations
Whatsapp/Phone/Wechat: +86 135 2661 5783
Email: sales@doingmachinery.com
Website:https://www.cassavaprocessing.com