KNOWLEDGE

Processing technology of flaxseed by oil press and edible guide

Flaxseed aka flaxseed

My country’s flaxseed comes from the Fergana Basin of Uzbekistan. According to historical records, flaxseed has been used for more than 4,000 years, and our country has a history of nearly 2,000 years. At the beginning, flaxseed was mainly used for medicinal purposes, and it was not used for oil extraction until the 16th century.

Flaxseeds are mainly divided into golden flaxseeds and brown flaxseeds due to the difference in the length of sunshine in the geographical environment. Golden flaxseed has a milky aroma and has a small planting area, so it is mainly used in baked goods, while brown flaxseed is mostly used for oil pressing or cooked food.

Flaxseed pressing process

There are currently three main processes for producing linseed oil for oil, one is the supercritical method, the other is the solvent method, and the last one is the pressing method that I will introduce to you here.

The harvested linseeds are cleaned of impurities (leaves, small stones, etc. that may be carried), and then enter the next step of screening to remove the deteriorated or deformed linseeds. After a series of pretreatment stages, flaxseeds with full grains and high quality can enter the oil press for pressing to obtain crude flaxseed oil. The oil yield of flaxseeds is about 30%.

Deacidification treatment of linseed crude oil: add an appropriate proportion of edible alkali according to the measured acidity value of the crude oil, and use acid-base neutralization to reduce the acid value.

Dephosphorization treatment: add dephosphorization agent to the decolorized oil and stir to remove the phospholipids in the oil;

OIL PRESS

Deodorization treatment of linseed oil: use high-temperature vacuum to remove the peculiar smell in the crude oil. Cooling and filtration: The deodorized linseed oil enters the cooler, and after the crystallization tank, crystal growth tank, plate and frame filter and other processes, the finished linseed oil can be obtained.
Flaxseed Oil Consumption Guide

Flaxseed oil is a kind of nutritious cold meal edible oil, so this edible oil is not suitable for high-temperature cooking and frying, and because linseed oil is easy to deteriorate, it should be stored in cold storage, and linseed oil is rich in omega-3 fatty acids. It is an essential nutrient for the human body to synthesize various hormones and endogenous substances, so it is especially suitable for children, pregnant women, and working people who do mental work. In addition to mixing cold dishes and soups for seasoning, it can also be mixed with yogurt or honey and taken with warm water.