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Method for preparing shiny-leaved yellowhorn oil by secondary pressing

A technology of secondary pressing and sorbifolium fruit oil, which is applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc. It can solve the problems of unfriendly solvent gas environment, hidden dangers of organic solvent safety, high cost of enzyme use, etc., to achieve Increased oil yield, fewer supporting equipment, and flexible production

Active Publication Date: 2015-07-22
WUHAN POLYTECHNIC UNIVERSITY
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Problems solved by technology

[0003] In the prior art, although the leaching method has the advantages of low cost and high oil yield, there are potential safety hazards in organic solvents, and the released solvent gas is not friendly to the environment; the aqueous enzymatic method is based on mechanical crushing, using protease, fiber Sulfase and other enzymes further destroy the cell structure, release the oil, and use the difference in density and incompatibility between the oil phase and the water phase to separate it by centrifugation. Compared with the traditional oil production method, the water enzyme method has conditions It has the advantages of mildness and high oil quality, but at the same time, it also has problems such as high cost of enzyme use and easy emulsification

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  • Method for preparing shiny-leaved yellowhorn oil by secondary pressing

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preparation example Construction

[0019] Step 1. Preparation of raw materials of X. sorbifolium: select X. sorbifolia and crush to remove part of the shell of X. sorbifolia, and retain 10% to 15% of the shell content to increase the friction of pressing. If pure X. sorbifolia is used Kernel pressing, because the material is compacted, the oil channel will be lost, and the oil yield will be greatly reduced, leaving 10-15% of the radishes to adjust the plasticity of the pressing material, and the pressing effect is excellent, and then use mixed-flow hot air drying machine, using hot air as the drying medium, to dry the kernel and shell of the crushed sorbifolium sorbifolium until the moisture content is 4-6%, so as to facilitate oil extraction;

[0020] Step 2, one-time pressing: Carry out one-time pressing on the raw material of sorbifolium sorbifolium prepared in step 1 to obtain one-time sorbifolium crude oil and one-time pressing cake, wherein, the conditions of one-time pressing are: pressing temperature 60-...

Embodiment 1

[0030] Dried the sorbifolium with a shell content of 10% to a moisture content of 6%, pressed at a temperature of 100°C, and pressed for 0.5 hours to obtain primary sorbiflora crude oil and a primary cake, and moistened the primary cake to a moisture content of 16 %, steaming and frying layer by layer, steam pressure 0.1Mpa, steaming temperature 100±5°C, steaming thickness 30cm, steaming time 20 minutes, until the moisture content of the first pressed cake is 10%; The second pressing, the pressing temperature is 80°C, the pressing time is 0.5h, to obtain the second Xeroxio sorbifolium crude oil and the second squeeze cake, mix the first Xeroxinia sorbifolium crude oil and the second Xeroxinia sorbifolium crude oil, and carry out alkali refining in sequence , dehydration, decolorization and deodorization treatment, to get the finished Xanthan fruit oil, the oil extraction rate is 92.4%.

Embodiment 2

[0032] Dried sorbifolia with a shell content of 10% to a moisture content of 5%, pressed at a temperature of 115°C, and pressed for 1 hour to obtain primary sorbifolium crude oil and a primary cake, and moistened the primary cake to a moisture content of 15% , steaming and frying layer by layer, steam pressure 0.1Mpa, steaming temperature 100±5°C, steaming thickness 20cm, steaming time 25 minutes, until the moisture content of the first pressed cake is 9%; Squeeze, the pressing temperature is 120°C, and the pressing time is 1h, to obtain the second sorbiola crude oil and the second pressing cake, mix the primary sorbiola crude oil and the second sorbiola crude oil, and carry out alkali refining and dehydration in sequence , decolorization and deodorization treatment, to get the finished Xanthan fruit oil, the oil extraction rate is 94.2%.

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Abstract

The invention discloses a method for preparing shiny-leaved yellowhorn oil by secondary pressing. The method comprises the following steps: preparing a shiny-leaved yellowhorn raw material; primarily pressing the prepared shiny-leaved yellowhorn raw material to obtain primary shiny-leaved yellowhorn crude oil and primary pressed cakes; steaming and frying the crushed primary pressed cakes; secondarily pressing the steamed and fried primary pressed cakes to obtain secondary shiny-leaved yellowhorn crude oil and secondary pressed cakes; mixing the primary and secondary shiny-leaved yellowhorn crude oil to obtain the pressed crude oil; sequentially alkali-refining, dehydrating, decoloring and deodorizing the obtained pressed crude oil to obtain a finished product shiny-leaved yellowhorn oil. Compared with a conventional primary pressing method, the method for preparing shiny-leaved yellowhorn oil by secondary pressing disclosed by the invention greatly improves the oil yield of pressing the shiny-leaved yellowhorn, so that the quality of the shiny-leaved yellowhorn oil is guaranteed. Compared with an aqueous enzymatic method, the method disclosed by the invention is simple in process, less in corollary equipment, flexible in production and suitable for small scale production.

Description

technical field [0001] The invention relates to the technical field of oil processing methods, in particular to a method for preparing sorbifolium oil by secondary pressing. Background technique [0002] Xantho sorbifolium has high industrial value and nutritional value, and the oil content in the seeds and kernels is extremely high. The research results prove that the oil content in the kernels reaches 55-67%, and the oil content in the kernels of fine varieties reaches 72%. %, more than ordinary oil plants, the basic composition of its oil is as follows: stearic acid, oleic acid 38.9% (one of the main components of general edible oil), linoleic acid 40.2% (similar to soybean oil and walnut oil, but also the nutritional value The highest part), behenic acid 7.2%, linolenic acid and glycenoic acid are 0.3% each. Xingguan fruit is a unique economic woody oil tree species in my country. The oil content of the seeds is 30.4% to 47%, and the oil content of the kernels is as hig...

Claims

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Application Information

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IPC IPC(8): C11B1/04C11B1/06C11B3/00
CPCC11B1/04C11B1/06C11B3/001C11B3/06C11B3/10
Inventor 何东平尹菊萍胡传荣张四红罗质刘零怡阮瑜琳
Owner WUHAN POLYTECHNIC UNIVERSITY
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