Production method of functional walnut oil rich in biological organic selenium

Abstract

The invention belongs to the technical field of fat or grease oil refining, and discloses a production method of functional walnut oil rich in biological organic selenium. The production method comprises the following steps: selecting mildew-free walnuts, removing shells of the walnuts by using a shell removing machine, conveying obtained walnut kernels with shells to a walnut kernel skin removingmachine to remove walnut kernel skins, and producing qualified high-quality refined walnut oil by using high-tech physical walnut oil squeezing equipment and high-tech physical refined oil refining equipment; under a sterile condition, adding biological organic selenium or biological nano-selenium into the refined oil in a 55-75 DEG C constant-temperature heating stirrer, and uniformly stirring;and bottling by using a filling machine, filling nitrogen and sealing to form the functional walnut oil rich in biological organic selenium. The qualified high-quality refined walnut oil is obtained,the taste and quality of the walnut oil are remarkably improved, and the impurity content of the walnut oil is greatly reduced; meanwhile, biological organic selenium or biological nano-selenium is added to form a new organic-selenium-rich functional walnut oil commodity which has market requirements and is beneficial to human health, and the quality and additional value of the walnut oil are improved.

Description

technical field [0001] The invention belongs to the technical field of fat or oil refining, and in particular relates to a production method of bio-organic selenium-rich functional walnut oil. Background technique [0002] At present, the commonly used prior art in the industry is as follows: walnuts, almonds, cashew nuts, and hazelnuts are listed as the world's four largest dry fruits. my country is the birthplace of walnuts, almost all over the southeast and northwest provinces of our country, the cultivation area ranks first in the world, walnut oil linoleic acid, linolenic acid, nervonic acid, cod oleic acid, DHA, EPA, trace functional fatty acids and squalene, Melatonin, flavonoids, nonadecanol, carotene and other trace functional ingredients. Walnut nuts are extremely nutritious. Analysis shows that the nuts contain 60% to 70% fat, ranking first among all woody oils. They are known as "oil depots on trees", 15% to 20% protein, % to 15% carbohydrates, in addition to vi...

AI Technical Summary

Problems solved by technology

The first two are commonly used production processes in production, which can meet the above requirements, and the operation process is simple and efficient, and are suitable for industrial production. However, the first type is difficult to produce high-quality walnut oil with excellent fragrance and high score, without removing yellowing oil. Aspergillus and Ochraus process and equipment, and the equipment is outdated and labor-intensive; the second category not only has the disadvantages of the first category, but also uses No. 6 oil to extract the remaining oil in the dried cake, leaving toxic chemical reagents in the walnut oil , not safe

The third type of water extraction process is the production process of refining walnut oil, but adding water to the oil for hydration and degumming removes the nervous acid, codoleic acid, DHA, EPA, trace functional fatty acids, squalene, and melatonin in the walnut oil , flavonoids, nonadecanol, carotene and other trace functional ingredients will take away a part, reducing the efficacy of walnut oil; removing the rancid oil in walnut oil and adding sodium hydroxide saponification reaction will pollute the environment, and will degrade the linseed oil contained in walnut oil acid and linolenic acid to produce sodium linoleate and sodium linolenate, destroying the inherent health care properties of linoleic acid and linolenic acid; clay is needed to filter particulate impurities, and clay needs to be changed frequently, which is labor-intensive; and it also takes away a certain amount walnut oil, resulting in product loss; long production time, backward technology; the fourth type of supercritical CO 2 The extraction process consumes a lot of power, and the production cost is high. To produce refined walnut oil, the third type of water extraction process must be used; the microwave extraction process of walnut oil is not yet mature.

[0008] (1) The method for preparing walnut oil in the prior art is: fresh walnut kernels, peeling, drying and roasting, screw pressing, walnut crude oil, activated clay filtration, hydration degumming, deacidification, drying, decolorization, vacuum deodorization , adding compound antioxidants and nutrient enhancers to mix, cool, fill, and finish refined walnut oil. This walnut oil production process requires white clay to filter particulate impurities, which requires frequent replacement of white clay, which is labor-intensive; and also takes away a certain amount of Walnut oil, causing product loss; adding water to the oil for hydration and degumming, and also nervous acid, codoleic acid, DHA, EPA, trace functional fatty acids and squalene, melatonin, flavonoids, nonadecanol, Carotene and other trace functional ingredients take away a part, reducing the efficacy of walnut oil; removing rancid oil in walnut oil and adding sodium hydroxide will convert linoleic acid and linolenic acid contained in walnut oil into sodium linoleate and flax Sodium acid, which destroys the inherent health benefits of linoleic acid and linolenic acid

[0009] (2) Edible oil produced from naturally grown oil crops contains almost no selenium, and traditional walnut oil does not use safe bio-organic selenium and bio-nanometer selenium to produce organic selenium-rich functional walnut oil

[0012] 2. At present, neither the edible oil of naturally grown plants nor the edible oil of farmed animals contains selenium, because fat molecules have no group bonds to bind selenium

[0014] The invention overcomes the shortcomings of the traditional chemical method of removing impurities to produce walnut oil of low quality, and provides a healthy function rich in organic selenium with high production technology content, high degree of automation, advanced equipment, minimum edible oil pollution, and better palatability The production process parameters of walnut oil products and the formation of supporting equipment production lines can produce a new product of qualified walnut oil with outstanding aroma, safe bio-organic selenium-rich health function walnut oil

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