Treatment method for debittering and deodorizing linseed oil

A technology of linseed oil and linseed meal, which is applied in the direction of edible oil/fat, fat oil/fat refining, fat production, etc., to achieve the effect of removing fishy smell

Active Publication Date: 2018-11-16
INNER MONGOLIA JIUDING FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current deodorization process of linseed oil has major defects. The produced linseed oil will have a very obvious bitter and fishy smell after being placed at room temperature for about 3 months.
Therefore, the current debittering and deodorizing treatment methods of linseed oil still need to be improved

Method used

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  • Treatment method for debittering and deodorizing linseed oil
  • Treatment method for debittering and deodorizing linseed oil
  • Treatment method for debittering and deodorizing linseed oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 Screening experiment of debittering and deodorizing materials

[0030] Follow the steps below to screen linseed oil for debittering and deodorizing materials:

[0031] 1. Prepare the initial product of linseed oil

[0032] Preliminary product of linseed oil is prepared based on cold pressing method, specific method:

[0033] The linseed is passed through a 40-mesh vibrating sieve to remove fine impurities, and then a 2.0 kW stone-removing specific gravity machine is used to further remove larger and heavier impurities, and the linseed kernels are obtained by dehulling with a sheller, and sent to a cold-pressing press, into The pressing temperature is controlled at about 20°C, and the pressing chamber temperature of the press is controlled at 50±5°C, so as to obtain shelled linseed meal powder (oil content <1%, water content less than 0.5%) and cold-pressed crude product respectively.

[0034] Next, add 5% by mass of water at a temperature of 75°C to the cold...

Embodiment 2

[0043] Example 2 Optimization Test of Linseed Meal Addition

[0044]Follow the steps below to determine the optimum amount of linseed meal for debittering and deodorizing treatment of linseed oil:

[0045] 1. Prepare the initial product of linseed oil

[0046] With reference to the method in Example 1, the initial product of linseed oil was prepared.

[0047] 2. Remove bitterness and smell

[0048] Ten treatments were set up in this test, and each treatment added shelled linseed meal powder of the quality shown in Table 2 below (oil content < 1%, moisture content less than 0.5%) to the initial product of linseed oil at a temperature of 2°C. ) and 2% by mass of diatomaceous earth, so that the dehulled linseed meal powder and diatomite can fully absorb the bitterness and fishy smell of linseed oil, so as to carry out debittering and deodorizing treatment.

[0049] Next, pump the adsorbed linseed oil into a filter with a screw pump, and filter and remove diatomite and linseed ...

Embodiment 3

[0056] According to the treatment method for debittering and deodorizing linseed oil of the present invention, linseed oil is prepared, specifically as follows:

[0057] First, referring to the method in Example 1, a primary product of linseed oil at a temperature of 2° C. was prepared.

[0058] Next, add 5 mass % dehulled linseed meal powder (oil content < 1%, water content less than 0.5%) and 2 mass % diatomaceous earth to the initial product of linseed oil at 2 ° C, stir for 4 hours, The husked linseed meal powder and diatomaceous earth are used to fully absorb the bitterness and fishy smell of the linseed oil, so as to perform debittering and deodorizing treatment.

[0059] Then, use a screw pump to pump the absorbed linseed oil into the filter, filter and remove diatomaceous earth and linseed meal powder under a pressure of ≤0.4MPa, and remove the wax in the oil through diatomite adsorption at the same time, In order to obtain debitter and deodorized linseed oil.

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Abstract

The invention discloses a linseed oil debittering and deodorization treatment method. The method includes: contacting the linseed oil with a mixture of hulled linseed meal and diatomite. According to the method, by adopting hulled linseed meal and diatomite, debittering and deodorization treatment on linseed oil can be effectively realized. After debittering and deodorization treatment, the linseed oil has no fishy smell, and has no bitter taste within the 18 months of shelf-life.

Description

technical field [0001] The invention relates to the technical field of oil preparation, in particular to a treatment method for debittering and deodorizing linseed oil. Background technique [0002] Flaxseed (flaxseed or linseed), also known as flaxseed, is the seed of flax, an annual or perennial herb of the family Linaceae and the genus Flax. The sum of crude protein, fat and total sugar content in flaxseed is as high as 84.07%. Flaxseed oil is the oil extracted from flaxseed. Flaxseed and seed oil have high nutritional value and can be used as raw materials for processed food, medicine or animal feed, and have broad prospects for comprehensive utilization and development. [0003] However, the current deodorization process of linseed oil has relatively large defects, and the produced linseed oil will have a very obvious bitter and fishy smell after being placed at room temperature for about 3 months. Therefore, the current debittering and deodorizing treatment methods o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/10A23D9/04
Inventor 王瑞军邱星
Owner INNER MONGOLIA JIUDING FOOD
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