Hazelnut Oil Production Process

Hazelnut oil is a kind of oil extracted from hazelnuts, a nut with high nutritional value, and also woody oil, enjoying the reputation of "King of nuts". The fat content of hazelnut is 40%~50%. The unsaturated fatty acid content is more than 70%, rich in oleic acid (71%~91%) and linoleic acid (20%~21%).

Hazelnut oil helps maintain cardiovascular health and lower cholesterol levels. It is also rich in vitamin E, a powerful antioxidant that helps protect the body's cells from damage caused by free radicals.

In view of the main nutrients contained in the hazelnut kernel, the hazelnut kernel is first peeled. Because hazelnut kernel skin contains tannins and other substances, can make hazelnut oil produce a astringent taste, and can affect the color and stability of the protein drink made of defatted hazelnut kernel. The peeled hazelnut kernel is partially extracted by hydraulic pressure, and then partially defatted hazelnut kernel is made into protein drink. In this way, two products of hazelnut oil and hazelnut drink can be obtained, which can solve the disadvantage of the high cost of producing a single product from the kernel.

Hazelnut oil production process:

Hazelnut kernel selection (remove skin, slag)- Peeling - Drying - Crushing - Hydraulic oil press pressing- Seed oil (crude oil)- Filtration - Dehydration- Nitrogen packaging

Hazelnut peeling

1) Material selection: Select full, no moth, no mildew, no oil spill when the annual production of hazelnut kernel, and remove hazelnut shells and other substances.

2) Peeling: Boil with 7% NaOH solution for 4-6 min, rinse with water repeatedly.

3) The peeled hazelnut kernel is centrifuged and dehydrated, dry in the shade, and the water content of Qinzi kernel is 5%~9%

Press hazelnut oil

1) Crushing: Use a crusher to break the peeled hazelnut kernel into a particle size below 0.3cm.

2) Press hazelnut oil with hydraulic oil press.

Filtration

The pressed hazelnut oil (gross oil) contains more impurities, and is first precipitated to be clarified and then filtered. The impurities of the filtered rod oil are less than 0.1%.

Dehydration

Avoid the reaction between the components in the oil and water, so that the oil undergoes a peroxidation reaction and increases the peroxide value, resulting in oil corruption.

Nitrogen-filled packaging

The unsaturated fat in Qinzi oil contains high content of linoleic acid and linolenic acid, and the natural antioxidant capacity is poor, which is easy to oxidize and deteriorate during storage. The hazelnut oil package can be filled with nitrogen and stored away from light.