Wet-Milling Process for Starch
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The Process of Wet-Milling for Starch Manufacturing
It is straightforward to isolate starch from roots and tubers by shattering vegetative cells and releasing the starch. Pulse starch extraction is more complicated than root and tuber starches due to increased protein and lipid content and smaller starch granules. Wet milling can be used to separate starch from pseudocereals. Aqueous (wet) and dry milling are the most prevalent techniques for isolating starches from the pulse. The purity of wet-milled starch is higher than that of dry-milled starch. Wet milling requires repeated filtration and alkaline washes, whereas dry milling involves considerable grain particle size reduction followed by air classification. Different plant sources contain different starch content, from 10% to 60%, even up to around 80%. According to the starch content and pellet size, CD BioGlyco chooses wet or dry milling to process the manufacturing. The list below shows some common plants for starch manufacturing.
Table 1. Starches from some pulses, tubers, roots pseudocereals, and unconventional sources. (CD BioGlyco)
| Source |
Starch Content (%) |
Amylose Content (%) |
| Beans |
30 |
20~25 |
| Pea |
30~50 |
33.1~88 |
| Lentil |
35~53 |
29~45.5 |
| Potato |
10~25 |
19~23 |
| Cassava |
25~30 |
18~25 |
| Amaranth |
55~60 |
4.7~12.5 |
| Quinoa |
52.2~60.2 |
3.5~22.5 |
Wet-Milling at CD BioGlyco
In addition to standard wet milling, alkali, and alkaline-protease treatment have been developed to manage starch manufacture. The traditional extraction process does not involve pre-treatment. Conventional extraction has a limited starch yield because some starch granules are still entrenched in the fibers. Enzymatic, ultrasonic, and microwave treatments and combinations are used in labs to pre-treat plant resources in order to enhance starch output. CD BioGlyco provides conventional wet milling, alkali wet milling, and alkaline protease treatment wet milling services for starch manufacturing. Besides these wet milling, CD BioGlyco also provides Dry-Milling and Custom Processes for starch manufacturing.
Conventional wet milling is a process designed for the recovery and purification of starch and several coproducts.
Alkali wet milling consists of soaking the raw material in NaOH (pH 13) at 85°C.
The alkaline method combined with protease digestion promoted an increase in the starch yield and recovery rate.
Applications of Starch Manufacturing
Starch is mostly utilized to make starch-derived sweeteners, although it also contains native and modified starches. Starch-derived sweeteners include glucose, fructose, and the polyols mannitol, sorbitol, and maltitol. Native starches' properties fail to meet process or product requirements in a range of applications. As a result, starches undergo chemical or physical modification. Starches used in food production are frequently cross-linked and replaced.
Advantages of Us
- We employ outstanding lab operators to handle these production and analysis services for starches.
- Our service team is available to respond to inquiries from clients around the world promptly.
- Our lab team exhibits strong attention to detail and follows rigorous quality control measures, ensuring the accuracy and precision of our experimental procedures and analysis.
CD BioGlyco has established a well-equipped manufacturing platform for the production of native and modified starches. Please do not hesitate to contact us for more detailed information.
For research use only. Not
intended for any clinical use.
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