Processing soybeans is a multi-step process that involves several different machines. The first step in processing soybeans is to remove the shells from the beans. This can be done manually with a machine called a huller, or by using high-pressure steam to open the beans up and then separate them from the shell.

The next step in processing soybeans is to separate out the different parts of each bean, including the hulls and the grains. This can be done using a machine called a separator, which separates out these parts by spinning them at different speeds so that they separate into different containers.

The third step in processing soybeans is crushing them into smaller pieces so that they will be easy to cook later on. This can be done by either rolling over them with rollers or crushing them between two moving surfaces with an impactor device. Finally, once everything has been processed into smaller pieces and separated into its various parts, you can now cook it or sell it as whole beans or flour.

If you’re considering starting a soybean production business, you probably want to learn more about the different methods of soybean processing. Extrusion cooking, flaking, hot dehulling, and quality control checkpoints are just a few of the methods covered in this article. But you’ll also learn how to select the right equipment and use it correctly. Then, you can start processing your own soybeans in no time.

Extrusion cooking

In recent years, soybeans have been processed in a number of ways. One of these methods is called extrusion cooking. During this process, the soybeans are heated at high shear. The high shear generates heat and partially dehydrates the soybeans in a matter of seconds.

Extrusion is a continuous process that has a number of advantages over batch cooking. First, it is faster than boiling. Moreover, boiling beans requires the beans to be kept at a certain temperature for at least 30 minutes to destroy inhibitors. Second, extrusion cooking breaks the soybean cells and releases oil, which can be used by animals. However, extrusion is not the only cooking method, and it must be used carefully.

A number of factors affect the extrusion process, including feed moisture and screw speed. Other variables influence the extrudate’s texture and water solubility. Different screw configurations have different effects on different processes. Extrusion cooking should be adjusted to suit the type of soybean that you’re processing.

The extrusion cooking process can be used for a variety of packaged foods. For example, many bowls of cereal and breakfast bars are made with extrusion cooking. This method is not limited to grains; soybeans are also used frequently to produce a number of processed and packaged products.


Flaking when processing soybeans is a technique used to make a product more uniform and edible. The process involves reducing the thickness of the soybean seed to reduce the number of cell walls that the solvent needs to pass through. Soybean seed contains cells that are about 0.02 mm thick that contains oil and protein bodies. These oil bodies are hard to reach by the solvent.

Flaking is an excellent way to improve the recovery of oil from soybeans. It allows more of the oil to be extracted with less residue. An ideal residual oil content for a soybean meal is approximately 0.5%. Flaking and expanding are complementary processes for improving oil extraction. The flaking process also helps to break down the cell walls of the soybean seed, which is essential for a high-quality oil yield.

Flaking is not a necessary step for making soybean feed, but it is important to understand the process. There are many different soybean processing steps. Each step will affect the final product’s oil content and residual hull content. Furthermore, soybeans differ in their properties from year to year, region to region, and country to country.

The first step of soybean processing involves preparing the soybeans for dehulling. The process involves the removal of metal and impurities from the soybean. Then, the hulls are moved to a different location to increase the protein content of the final meal. In order to make this process more efficient, mechanical rollers are used. The final product is then toasted to give it a crispness and flavor.

Hot dehulling

Dehulling is an important part of soybean processing. It reduces the number of soybean hulls, which is a constituent of soybean meal. This product has a high protein content and very little fiber. Hot dehulling of soybeans are becoming more common in northern soybean-growing regions.

The dehulling process begins with the soybeans being screened and cleaned. After being screened, the beans are then subjected to a dry heat treatment at atmospheric pressure in conventional hot air grain dryers. In the first stage, the soybeans are heated to about 160 F. Next, the soybeans are cooled by pulling cool air in from the outside of the dryer. The soybeans are then conveyed to the dehulling equipment. This step is followed by cracking the beans to remove their hulls. The cracked beans are then transported to the dehulling equipment.

Hot dehulling of soybeans is more efficient than traditional cold dehulling. Because the moisture content of the beans is lower, the process of decortication is easier. In addition, the beans are cleaned and tempered so that they are less likely to break apart. In addition, the beans are further dried, which shrinks the hulls and meat away. Hot dehulling is an important part of the soybean processing process because it is more effective at removing the hulls and helps to increase the meal protein content of lower-protein beans.

Hot dehulling of soybeans uses contact heat and is a great way to improve the protein content of soybean meals. It is similar to the front-end dehulling process, except that this process requires heating the beans only once.

Quality control checkpoints

In order to ensure that soybeans are processed correctly and safe to consume, manufacturers must use rigorous quality control procedures. They need to ensure that the finished products meet the specifications set by their clients. These steps include random sampling and visual inspection. After ensuring that the source materials are free of contamination and that their skin color is consistent, the manufacturers then process the material into a variety of food ingredients. Once the process is complete, the ingredients are cleaned and packaged before being shipped to their client.

Many quality control processes do not include the proper feedback loop, which is vital for evaluating and improving the entire production process. The process must be able to evaluate the products, identify any deviations, and correct them accordingly. The purpose of quality control is to reduce and eliminate risk. The steps should include specific tasks and accountable personnel. Moreover, the quality control checkpoints should have the ability to define the frequency of the tests.

The process of processing soybean seeds should be classified according to the physical and physiological attributes of each seed. This way, the quality of the seeds can be assured. The use of control charts is essential in this process, as they help identify problems and promote continuous improvement.

Oil yield

Soybean oil yield varies depending on the method used for extraction. A bushel of soybeans weighs 60 pounds and yields 10.8 pounds of oil. Soybean meal, which is a byproduct of soybean oil extraction, sells for $185 a ton. Sunflower and canola oil yields vary, but in general, the soybean oil yield is higher. It is likely that soybean oil will find its first commercial use in blending diesel fuel. Lambert Field airport already uses a blend of the two fuels.

The soybean oil yield can be increased by adjusting the temperature, humidity, and state of the soybeans. Using an oil press machine, soybeans are adjusted to an optimal state for oil pressing. This helps speed up the yield. The resulting oil is then sent to an oil refinery where it is refined.

The process of soybean oil extraction is a complex one, and there are many different methods used to get the oil. Soybeans are heated to around 75 degrees Celsius to separate their proteins. They are then poured into percolation extractors and immersed in hexane, which is then evaporated. Once the oil has been extracted, it is refined and blended for various applications. In some cases, it is hydrogenated, depending on the desired result.

The extrusion-expelling process separates soybean oil from soybean protein and fiber. Its oil content is greater than soybean meal produced by solvent extraction. This process is popular in livestock feed applications. In fact, many industrial applications have adapted this process.

Residual oil content

Residual oil content in soybeans is a valuable trace fossil resource for the history of soybean domestication. Its oil content is negatively correlated with the amount of protein it contains. Studies of archaeological soybean seeds have revealed a significant increase in oil content with time. In addition, the oil content of the seeds of archaeological soybeans is higher than those of modern cultivated soybeans.

Residual oil content in soybeans is influenced by several factors, including the processing step. For example, in the case of soybeans, a mechanical press process can produce a cake with up to 20% oil. This cake is then passed through a solvent extraction plant, which further reduces the oil content of the meal.

For optimal soybean oil yield, residual oil content must not exceed 0.5%. To achieve this, soybeans should be dehulled to a moisture content below 12 percent. This step is critical to maximizing protein content and minimizing residual oil. The process of dehulling soybeans uses commercial hexane.

Soybean oil contains a high proportion of linolenic acid, which can lead to flavor reversion and shorter shelf life. Soybean oil producers have sought ways to minimize this acid content through plant breeding. Soybean oil is a cheap, versatile source of vegetable oil that is easy to obtain.

Leave a Comment

Your email address will not be published.

error: Content is protected !!