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Method for filtering refined linseed oil

A filtering method and technology of sesame oil, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of easy oxidation reaction of oil, production of harmful substances, reduction of nutritional value, etc., to save energy consumption, long production cycle, product The effect of quality improvement

Inactive Publication Date: 2019-04-19
NINGXIA YULINGFENG FOOD
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Problems solved by technology

Due to the high heat exchange temperature, under the action of air and water, the oil is prone to oxidation reaction; secondly, after the oil is heated at high temperature, the nutritional value is reduced, and the unique aromatic compounds of the flax oil are completely volatilized, especially the unique fatty acids in the flax oil. That is, α-linolenic acid will be destroyed due to continuous high temperature, and may even undergo polymerization to produce harmful substances

Method used

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Embodiment Construction

[0022] A filtering method for refined flax oil, comprising the following steps

[0023] 1) Pretreatment before filtration: Pre-filter the cooked flax oil obtained by physical pressing to remove impurities with large particle size, and then pour it into a standing tank for natural precipitation for 20 days to remove impurities with small particle size. Use 200 mesh for primary filtration Cotton filter cloth.

[0024] 2) Classified stirring: inject the pretreated flax oil (cooked sesame oil) into the heating and stirring tank, heat to 70°C, stop heating, start the slow stirring program, and slowly add the particle size 200 mesh, diameter 0.075mm during the slow stirring process The food-grade wood powder activated carbon, the slow stirring time is 90 minutes, and then the fast stirring program is turned on, and the stirring is continued for 60 minutes.

[0025] 3) Stand still: After the stirring program is finished, enter the standing stage, wait for the oil temperature to drop...

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Abstract

The invention discloses a method for filtering refined linseed oil. The method comprises the steps of sequentially squeezing cooked linseed oil, performing primary filtration, keeping a stank still for natural settling, heating the tank, adding powdery active carbon during low-speed stirring, rapidly stirring the mixture, cooling the mixture, and filtering the mixture. The method has the advantages of reducing the production cost, improving the production efficiency, saving energy, improving product quality and the like, and various physical and chemical indexes of the linseed oil filtered bythe method are superior to national standards.

Description

technical field [0001] The invention belongs to the field of agricultural product processing, and in particular relates to a production and processing technology of flax oil with local characteristics, in particular to a production technology of filtering and refining flax oil by using activated carbon. Background technique [0002] Flax oil has a long edible history in our country. It is a unique small oil species in Ningxia and other Northwest regions. The production of flax oil is divided into two types: cooked pressing and cold pressing. [0003] Ripe pressing is a historical and traditional production process. For a long time, the local people have created the technology of frying and pressing the flax oil, which makes the flax oil have a unique fragrance and good taste, which is loved by the local people and has been regarded as a delicious food by the people since ancient times. The flax oil squeezed out in this way is called cooked flax oil. Because the flax seeds a...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/10
CPCC11B3/001C11B3/008C11B3/10
Inventor 马国栋
Owner NINGXIA YULINGFENG FOOD
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