Can walnuts, soybeans, rice and pumpkins extract oil? How much oil can be produced per kilo?

Walnuts, soybeans, rice and pumpkin seeds are what we often eat, so can they all extract oil? How much oil can be produced per kilo? It is understood that pumpkin seeds and rice can not extract oil, walnuts and soybeans can extract oil. The following will be introduced in detail.

Walnuts and soybeans can extract oil, how much oil can be produced in a jin?

Walnut:

Walnut is an oil crop with a very high oil content, and the oil yield of walnut kernel can reach 40% 50%, and walnut oil can strengthen the body, strengthen the brain, prevent cardiovascular and cerebrovascular diseases, improve the function of the endocrine system, and supplement calcium.

The method of extracting oil is basically the same, mainly to see whether the walnut has a high oil content and whether it can meet the requirements of extracting oil, but the wild walnut does not seem to have a high oil content and can not extract much oil. Now generally use high-quality walnuts to extract oil, first of all, the kernel rate is high, and the oil rate is also high, there is economic value here.

In general, 4 jin of walnut can extract one jin of oil, because the oil production rate of walnut kernel is about 70%, 500 kg 0.7 kg 350 g, and only 7 taels of oil per jin of walnut kernel.

The oil production rate of walnuts of different quality is different, and the oil production rate of walnuts used to extract oil on the market is about 30%, which is basically the highest.

Soybeans:

Soybean oil produced by soybean processing is one of the important edible oils, which belongs to semi-dry oil and is a good vegetable oil.

1. Moisture regulation and cleaning to remove impurities. Soybeans and soybeans in different regions have different moisture and types, so it is necessary to adjust the moisture of these raw grains. This process is not optional, the moisture requirement of soybean oil extracted by soybean oil press is not higher than 12%, and the impurity content is less than 0.5%. The content of moisture and impurities will directly affect the quality of oil, although the soybean oil press can be equipped with refining process, but the degree of refining is limited. Moreover, if the impurity content is too high, it will also cause oil road blockage and accelerate the wear of grease equipment parts.

two。 Peeling and shelling of soybeans and soybeans. If the soybean is not shelled during extraction, it will affect the oil yield of the oil press and the production efficiency of oil machinery. And there will be some impurities and pesticide residues on the soybean skin, which will affect the chromaticity and quality of the oil once it enters the oil.

3. Crushing and rolling of soybeans. The process can be set or not, the main function of this process is to press the soybean into a sheet, increase the oil area, and improve the handling capacity of oil equipment. Of course, the flaky soybean billet will also reduce the wear and tear of the screw in the oil press.

4. Fried seeds. This process is a landmark process in hot pressing, but this step is not needed in cold pressing. Generally speaking, the oil yield and production efficiency of hot pressing are higher than those of cold pressing.

According to different varieties of soybeans, the oil production rate is mostly between 18 and 22%. Generally speaking, at present, the genetically modified soybeans in the United States and Brazil are mostly high-fat beans, and the oil production rate is higher.

Rice and pumpkin seeds can't squeeze oil.

Rice itself cannot extract oil, but the layer of rice bran between rice and rice husk contains rice husk and rice germ, which contains a lot of nutrients in a paddy. In fact, many nutrients have been lost in the rice we usually eat. Rice oil is extracted from these nutritious rice bran, so this oil is very nutritious.

Pumpkin seeds have low oil content. So no one presently uses it to extract oil.