Evening primrose oil processing method

A processing method and technology of grass oil, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of oil products with strong special smell, difficult to completely remove the smell, large oil consumption, etc., and achieve high prices. Advantages, improving purity, increasing the effect of content

Inactive Publication Date: 2010-06-30
赵明
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Problems solved by technology

The problem with this traditional process method is that solvents and other low-molecular components remain in the final evening primrose oil, and it contains waxy and other undesirable components, which need to be frozen again; the oil contains The special smell is strong, and it needs to be deodorized twice, and it is difficult to completely remove the smell; when using alkali to reduce the acid value, the consumption of oil is relatively large

Method used

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  • Evening primrose oil processing method

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Embodiment Construction

[0013] Specific embodiments of the present invention will be described below with reference to the accompanying drawings. like figure 1 , figure 2 Shown: A processing method of evening primrose oil, including impurity removal, blanking, leaching, water washing, alkali refining, decolorization, molecular distillation and inspection and packaging.

[0014] First, the mature evening primrose seeds are screened by wind to remove impurities, vibrated to remove stones, and the evening primrose seeds without impurities and stones are obtained; The mechanism is completely destroyed; the destroyed seeds are put into the leaching equipment (pan-rotating leaching device, tank leaching device, etc.), and the oil in the oil is separated by the solvent leaching method; the separated crude oil contains moisture and organic colloids and oil impurities, so it needs to be washed with water to remove the gum, add a small amount of phosphoric acid or citric acid during the washing process, pre...

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Abstract

The invention discloses an evening primrose oil processing method which is characterized by comprising the steps of impurity removal, blank binding, leaching, water washing, alkali refining, decoloring, molecular distillation, checking and packaging, wherein the molecular distillation step comprises the following three parts: preheating, two-stage distillation and three-stage distillation; the preheating temperature is 150-160 DEG C; the temperature of a heating medium of the two-stage distillation is 165-175 DEG C, the temperature of the heating medium of the three-stage distillation is 185-195 DEG C, both the temperatures of cooling media in the two steps are lower than 40 DEG C, and the vacuum degree of a working cavity of a molecular distiller is 1-5Pa; and the method has the advantages that working procedures of deodorization and dewaxing are not needed, free fatty acid in grease can be effectively removed and the like.

Description

technical field [0001] The invention relates to a method for processing evening primrose oil, in particular to a method for processing evening primrose oil which does not require deodorization and dewaxing procedures and can effectively remove free fatty acids in oil. Background technique [0002] Evening primrose, also known as Evening Primrose oil, is a herbaceous plant of the Willow family. Evening primrose oil is a vegetable oil obtained by pressing evening primrose seeds. Evening primrose oil is rich in gamma-linolenic acid, or GLA for short. GLA is an Omega-6 unsaturated fatty acid, which is an essential fatty acid for the human body and has important functions in regulating the physiological functions of the human body (especially for women). In order to obtain evening primrose oil, the traditional method is mainly to extract evening primrose oil from mature evening primrose seeds by mechanical pressing, including pressing, hydration, neutralization, water washing, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/12C11B1/10
Inventor 赵明
Owner 赵明
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