Soybean cultivation is nowadays widespread all over the world. In human nutrition, this product is becoming increasingly frequent not only in the cultures of Asia, its place of origin, but also in the rest of the planet. In addition, soy is also widely used for animal nutrition, due to the high biological value of the protein. After harvesting and before being stored or processed in feed production lines, oil or products for human consumption, soybeans must be dried: not infrequently thanks to a natural air-drying process, which however involves several disadvantages. Otherwise, drying soybeans with dryer allows to obtain remarkable benefits. Mecmar, specialist in grain dryers, gives you some useful information in this article.
Soybean: a precious food
Soy is an annual herbaceous plant belonging to the family of Leguminosae, whose cultivation gives the best results in the presence of moderate temperatures and climates. In human nutrition, soy can be introduced as flour, milk, oil and more; as animal feed, on the other hand, soy is a product of great importance for any species, from cattle to pigs, from birds to fish.
For animal nutrition, soybeans are interesting for their high concentration in proteins of high biological value, which reaches 44-45% after roasting and extracting oil from the seed. Soybeans contain all the essential amino acids for proper nutrition (especially lysine), except for methionine, which is however easily integrated.
Using soy as animal feed also brings benefits for human health, as it allows to increase the quality of meat by reducing the lipid content, improving the balance between saturated and unsaturated fatty acids and contributing to the reduction of cholesterol.
The drying process of soybeans
At the time of harvest, soy – like any other crop – has a certain moisture content that can compromise its conservation, creating molds or alterations. This problem cannot be solved with the delay of the harvest because this could lead to loss of harvest and market weight, also reducing the time for new crops in the field.
This moisture content can vary depending on several factors. In general, soybeans can be harvested with a humidity of 18-25%, which necessarily requires a drying process that lowers this rate under 13%. For storage, in fact, a high moisture content leads to the deterioration of the legume or to possible germination.
Soybeans are a particularly delicate product: for this reason, the treatment carried out on them must consider this aspect. Too high temperatures can damage them, but this does not mean that the drying of the beans must necessarily be carried out by natural air: such a process would take from 3 to 6 weeks, leading to a huge waste of time.
Soybean treatment with dryers
Drying soybeans with dryer is not only a possibility, but the best choice. Of course, it’s important to rely on machinery that can adapt perfectly to the drying needs of soybeans. The treatment carried out on the beans must be delicate and at a temperature around 60 °C, recommended value for an optimal result. Soybeans are an oily type of seeds: this means that drying at too high temperatures can lead to an increase in the risk of combustion, which can be easily eliminated with the recommended temperatures.
The benefits of drying soybeans with dryer are remarkable. First of all, in terms of time it’s a very rapid process, which (depending on the quantity of product to dry and the capacity of the dryer) can be reduced to a single day, against the weeks or months required with traditional drying methods.
During the drying process, the bean is cleaned thanks to integrated systems and cleaning options, in order to make the product not only perfectly dried but also clean.
The fundamental aspect for which to have a soybeans dryer is given by the fact that it eliminates any risk deriving from the humidity contained in the seeds: the grain is dried homogeneously and the components that could compromise the quality of the soy are eliminated, with the consequent reduction of waste. This drying process also ensures higher safety, making the legume perfectly suitable for subsequent uses or treatments.
In drying soybeans with dryer, the farmer will also be able to obtain greater flexibility and freely decide when to sell his product, taking advantage of the times when the market is most favourable. These advantages, combined with the general optimization of times, spaces and costs ensured by the dryers, lead to a significant increase in profits.
Drying soybeans with dryer allows you to improve productivity and go towards an increase in profits. With a dryer is possible to carry out a delicate treatment that adapts to the needs of soybeans, in order to reduce the moisture content of the beans, but also to eliminate risks and reduce waste, obtaining further benefits in terms of safety and flexibility.
Mecmar, leader in the sector of design and construction of grain dryers, has studied numerous solutions for the optimal drying of soybeans: mobile dryers and tower dryers, capable of satisfying all drying needs. If you want to find out which system is right for you, do not hesitate to contact us: our team is at your disposal for any information.