Aromatic walnut oil production process

Abstract

An aromatic walnut oil production process is characterized by comprising sequential technological steps as follows: checking raw materials of walnuts, smashing the walnuts to obtain walnut kernels, sorting the walnut kernels, bagging the walnut kernels, performing cold pressing on the walnut kernels, obtaining crude walnut oil, hydrating the crude walnut oil at normal temperatures, performing nanofiltration (NF) on the crude walnut oil, obtaining finished walnut oil, filling the finished walnut oil in a tank, checking the finished walnut oil and putting the walnut oil in storage. The aromatic walnut oil production process has the advantages as follows: a refining step is omitted in the walnut oil production process, any chemical and high-temperature treatment of grease in the processing process is not required, the clear and transparent high-standard aromatic walnut oil which meets the requirements of national standards can be produced only through cold pressing and simple hydrating and filtering steps, original color, aroma and taste of walnut oil are kept, and nutritional ingredients and microelements of the walnut oil can be prevented from being damaged.

Description

technical field [0001] The invention relates to a production process of walnut oil, in particular to a production process of mellow-flavored walnut oil. Background technique [0002] At present, the traditional production process of walnut oil includes pressing and refining steps. Among them, the pressing step is divided into two types: normal temperature pressing and hot pressing. Regardless of which pressing process, walnut oil must be refined to achieve clarity. qualified walnut oil. However, the refining process includes alkali refining, decolorization and deodorization steps, and a series of chemical and high-temperature treatments are required for the walnut crude oil obtained by pressing. Therefore, the biggest disadvantage of the refining process is that not only the color, aroma and taste of walnut oil are removed, but also The nutrients and trace elements of the oil are destroyed to a certain extent. Above is the deficiency of existing walnut oil production techn...

AI Technical Summary

Problems solved by technology

However, the refining process includes alkali refining, decolorization and deodorization steps, and a series of chemical and high-temperature treatments are required for the walnut crude oil obtained by pressing. Therefore, the biggest disadvantage of the refining process is that not only the color, aroma and taste of walnut oil are removed, but also Destroy the nutrients and trace elements of the oil to a certain extent