How to Improve Peanut Oil Quality When Using an Peanut Oil Press?

Peanut Oil Press Introduction

Peanut screw oil press is a kind of superior oil pressing machine nowadays in the market. It is used for processing cooking oil from various oil bearing materials such as peanuts, soybeans, sunflower seeds, rapeseeds, oil palm, sesame seeds and so on. This screw oil press is suitable for both cold and hot pressing.
 

                    

Peanut Oil Press Features

1.A wide range of application. It can press more than 20 kinds of oil plant seeds, such as soybean, peanut, sesame, rapeseed, sunflower, olive, palm, coconut and flax seed, etc.
2.High oil yield and purer oil. The equipped vacuum filter is used to remove residue to ensure the pure oil quality and meet the standards of health quarantine..
3.Labor and electricity saving. Screw oil press saves 60% labor for equal output, and one or two people are able to operate independently.
4.Covering little space. An area of 10-20m*m workshop is enough, thus it is suitable for small and medium size oil extruding workshops or professional oil mills.

Peanut Oil Pressing Process

1.Raw materials feeder: the raw materials can go to the oil press machine through the feeder.
2.Vacuum filter: the crude oil go to the vacuum filter. In the filter, the physical impurities will be removed, which make the crude oil very clean and can be cooking directly.
3.Cake outlet: after the oil pressing section, the raw materials will be divided into two parts, one part is vegetable oil and the other part is raw materials cake. The cake can be used for animal feed.
4.Control panel: in the control panel,  there are several buttons. The heating system can make the temperature of pressing environment about 120 degree, which can make perfect pressing section working environment. When the temperature is higher than 120 degree, the heating system will be cut off automatically. The design of heating system can guarantee the service life of the oil press machine.

 

 Peanut Oil Press Operation Principle

1.When oil press in on work, material enters the extruding chamber from the hopper and then moves forwards by the rotating pressing screw and is pressed.

2.Under high temperature condition in the chamber, there is quite strong friction among press screw, chamber and the oil materials.

3.On the other hand, root diameter of the pressing screw carries larger from one end to the other.

4.Hence when rotating, the thread not only pushes particles moving forwards but also turns them outwards as well.

5.Meanwhile, particles adjacent the screw will rotate along with screw’s rotating, causing every particle inside the chamber to possess different speed.

6. Therefore, relative movement among particles creates neat which is necessary during manufacturing because of helping protein change property, damage colloid, increase plasticity, decrease oil’s elasticity, resulting in high oil.

Cold Pressing Peanut Oil

Use more than 6 sieves to handpick superior quality peanut, through removing peanut skin, cold pressing below 60 ℃, and filtering, then get delicate peanut oil.

Cold pressing process:

more than 6 sieves to handpick superior quality peanut →removing peanut skin → peanut kernel → cleaning and removing impurity → thermal refining → cold pressing → cold pressing crude oil → rough filtration → clear filter → superior quality cold pressing peanut oil → high quality peanut oil cake → crushing → peanut albumen power

Cold Pressing Peanut Oil Health Advantages:

1. No protein heat-denature
2. No residual solvent
3. Contains nature antioxidant
4. No aflatoxin
5. Do not contain genetically modified (GMO) ingredients
6. No cholesterol components
7. No chemicals and preservative
8. Not to damage the various nutrients in peanuts
9. High smoke point, less lampblack

How To Improve Peanut OIl Yield?
 

(1)Choose dry peanuts and Well Prepared

You should choose dry and plump peanut/groundnuts instead of the wet ones. The peanuts should be sundried and removed the impurities like stones, sand, dusts etc. If the capacity is small, you can choose to do it manually, but if the capacity is big, then you should think about appropriate oilseed cleaning equipment help you do the job.

(2)Well Control the Cooking Temperature

Cooking the peanut kernels 80% of the seeds have been properly cooked, pick the groundnuts by hand to see if they have come to the condition that the kernel, husk separation. In this time, the kernels appears light yellow color. The oil is more active in the high temperature, the seeds just out off the roasting machine when reaching 130º C, more oil can be obtained if oil is expelled at this temperature. The water content is about 1-2％，and the oil cakes is about 0.7-2mm.

(3)Choose the Right Oil Press Machine

The quality of oil press machine has big influence on the oil yield. Mainly on the machine itself, it is pressure of press cage and temperature of screw shaft. Finally, high residual oil content on the cake. As we know, if the cake is too thick and high oil residual, we get less oil. So to get high oil recovery, we should try to get thinner cake in the oil press work. The oil press machine from Junta is able to control the thick of dry cake into 0.8-2mm, and less than 4% residual oil content.

Benefit of Edible Peanut Oil

Peanut is an essential raw material for industries, however, it can be converted into commercial as well as edible products like peanut oil, peanut cake, shelled peanuts, butter, roasted peanuts, etc. As per the preliminary studies, the seeds of peanut contain approximately 42% to 52% oil. In almost all the countries, this process of peanut is done for cooking oil. Peanut oil is a healthier option as it is rich in monounsaturated fatty acids and low in saturated fatty acids. So, this oil is very beneficial for your health.
Peanut oil, also called groundnut oil, is a kind of edible cooking oil easily digestible for human beings. The oil yield rate for peanut is 40%-50%. Quality peanut oil is light yellow, clear and transparent in appearance. It smells fragrant and tastes delightful. The UFA (unsaturated fatty acid) content is above 80%, among it, there are 41.2% of oleic acid and 37.6% of linoleic acid. Having food cooked with peanut oil has many positive effects to your healthy, such as preventing skin from aging, protecting blood vessel wall, preventing thrombus. The choline in peanut oil can also improve your memory.