What is a good way to increase oil production

Oilseeds Roasting, Good Way to Increase Oil Yield

Oil seed baking is a good method to increase oil production, which relies on high-temperature treatment to expand the cell wall and denature proteins of oil seeds, thereby promoting oil release and extraction efficiency. Research has shown that baking can significantly improve the oil yield of oilseeds. For example, in rapeseed, the oil yield after baking can reach over 93%, and the residual oil rate can be as low as 6% -7%. In addition, baking can improve the physicochemical properties and sensory quality of oil products, such as increasing antioxidant capacity, enhancing flavor and aroma. However, harmful components such as oxidation products, polycyclic aromatic hydrocarbons, and acrylamide may also be produced during the baking process, so precise control of temperature and time is needed to ensure the safety and nutritional value of the oil.

Most kinds ofedible vegetable oilin our daly ile arehot pressed,which means roasting the oilseeds before pressing,whie cold pressing is withou roasting. The olseeds must beevenly roasted. Their water content,temperalure,and sruclure should met the requiremen of oil presin,.The elfecthas a diret inence on the smooth progres ofthe whole proces of ol production,the oilyvield,and the qualtly of oi as wellas oil cake.By rasting the oiseds,the oilyield an belargelyincreased, andthe oil yield of hot presing is twicethat of cold pressing.

How Does Roasting Increase the Oil Yield?

• The cell absorbs water and dilates so that the cell wall breaks, and the oil can come out.
• The protein in the oilseeds is solidifed and denatured by the high temperature, so that the oil is separated from the protein, and gathe!into larger oil drops from fine particles. The thoroughly denatured protein promotes a higher oil vield.
• The plasticity of oilseeds is changed so that to meet the requirement of oil pressing.
• With the rising of temperature, the velocity of oil decreases, which is to the advantage of oil pressing.

Why Should Oilseeds Be Roasted before Pressing by Oil Expeller?

Oilseeds need to be baked before being pressed in an oil press, mainly to improve oil yield and enhance oil quality. Baking expands the cell wall of oilseeds through high temperature, promotes the release of oil, and denatures and separates proteins, thereby improving the efficiency of oil extraction. In addition, baking can enhance the antioxidant stability of oil and extend its shelf life.

However, the crude oil that by pressing the roasted oilseeds should be refned before it’s edible.

The reasons are as follows：

• The content of phosphatide increaes, which makes the color of oil deeper, and the oilfoams and sediments appear when heating. So the crude oil neds degumming.
• The pigments in the oil increase, so that the color of the oil is deeper, and bleaching is needed.
• The acid value of oil increases, so neutralization is required.

On the other hand, the crude oil by cold pressing has a shallow color and there are few impurities in it. it does not need to be refned. fitering it canreach the standard of edible oil. Cold presing is suitable for smalbreed oilseeds or top qrade health care oi for which heating is not good，such asolive oils,flaxsed oil, and saflower oil. 0ilseeds that have a high content of oi are mostly cold pressed,and the denaturation of protein is small.Peanut and sesame which contains rich oil are often hot pressed to get a nice flavor.

Electric frying machine

Electric stir fry machine is a device that uses electromagnetic heating technology for food processing. Its core principle is to generate an alternating magnetic field through an electronic circuit board. When a container containing iron is placed in the magnetic field, eddy currents are generated at the bottom metal part of the container, which generates heat energy and directly heats up the pot. This heating method has the advantages of high thermal efficiency, energy saving, no open flame, smoke-free and dust-free. In addition, electric frying machines are usually equipped with automatic temperature control systems, which can accurately control the heating temperature and time, ensuring the stability of the frying process. Structurally, electric stir fry machines usually adopt a drum type design, which is driven by a motor to rotate the drum, allowing ingredients to be stir fried 360 degrees in three dimensions inside the pot, achieving uniform heating. This device is not only suitable for frying nuts, dried fruits, grains and other fried foods, but also for frying and drying traditional Chinese medicinal materials, with a wide range of applications.

The oil pressing equipment of Zhengzhou Fude Machinery Co., Ltd. focuses on efficiency in its design and can achieve continuous batch production. It is suitable for processing bulk edible oils and helps improve production efficiency and market competitiveness. The equipment can be combined or used separately as needed,The company’s products not only have a good reputation in the domestic market, but have also been successfully exported to multiple countries or regions such as India, Bangladesh, Argentina, Egypt, etc., demonstrating the international competitiveness of its products. If you want to know about oil processing equipment, please consult us.