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Method for producing low-temperature peanut oil

A production method and technology for peanut oil, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of damage and harm to the nutritional value of peanut oil, and achieve the effects of improving sensory quality, ensuring nutritional value and good taste.

Inactive Publication Date: 2004-01-28
冀中能源邢台矿业集团有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for producing low-temperature peanut oil, so as to overcome the damage to the nutritional value of peanut oil in the above-mentioned prior art, and the harm of trans fatty acids and residual solvents to the human body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: the production method of the low-temperature peanut oil of the present embodiment comprises the following operations successively:

[0021] (1). Remove the red coat and crush: Weigh 100 tons of peanut kernels with an oil content of 45%, put them into a cleaning sieve, remove 0.5 tons of impurities, blow them with hot air at 100°C for 10 seconds, and then quickly blow them with cold air at 20°C for 200 Seconds, the peanuts are crushed into 8 petals by a double-pair roller crusher, and 3 tons of red coats are separated by a separation screen and a separator.

[0022] (2). Crude oil extraction: Add 2 tons of peanut oil to the crushed peanuts, grind them with colloid until 95% can pass through a 100-mesh sieve, filter the oil slurry at 60°C, and reduce the oil content of peanut meal to 3.5% ( dry basis), 44 tons of peanut crude oil and 54 tons of peanut meal with a moisture content of 2% were obtained.

[0023] (3).Heat 44 tons of peanut crude oil to 50°C, ad...

Embodiment 2

[0024] Embodiment 2: the production method of the low-temperature peanut oil of the present embodiment comprises the following operations successively:

[0025] (1). Crushing: 100 tons of peanut kernels with an oil content of 44% are weighed, screened through a cleaning sieve to remove 0.5 tons of impurities, and crushed into 4 petals by a double-pair roller crusher.

[0026] (2). Crude oil extraction: add 5 tons of peanut oil to the crushed peanuts, grind twice with a colloid mill until 95% can pass through a 170-mesh sieve, filter the oil slurry at 30°C, and reduce the oil content of the peanut meal to 2.5 % (dry basis), 46.5 tons of peanut crude oil and 55 tons of peanut meal with a water content of 2%.

[0027] (3).Heat 46.5 tons of peanut crude oil to 65°C, add water accounting for 10% of the oil weight, stir at a speed of 30 rpm for 40 minutes, settle for 3 hours, take the upper layer of oil, heat it to 80°C, and Under the condition of 0.095MPa, dehydrate for 10 minutes...

Embodiment 3

[0028] Embodiment 3: the production method of the low-temperature peanut oil of the present embodiment comprises the following steps successively:

[0029] (1). Crushing: Weigh 100 tons of peanut kernels with an oil content of 45%, enter the cleaning sieve and screen, remove 0.4 tons of impurities, crush them into 6 petals by double-pair roller crusher, and separate 3.5 tons by separating sieve and separator red coat.

[0030] (2). Crude oil extraction: Add 5 tons of peanut oil to the crushed peanuts, grind them twice with a colloid mill until 95% can pass through a 60-mesh sieve, filter the oil slurry at 70°C, and reduce the oil content of the peanut meal to 4 % (dry basis), 47 tons of peanut crude oil and 55 tons of peanut meal with a moisture content of 2.5% were obtained.

[0031] (3).Heat 47 tons of peanut crude oil to 80°C, add water accounting for 30% of the oil weight, stir at a speed of 45 rpm for 30 minutes, settle for 6 hours, take the upper layer of oil, heat it t...

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Abstract

The production method of low temp. peanut oil includes the procedures of breaking, extracting crude oil and refinement, in concrete, said method adopts the following steps: adding broken peanut vernel into peanut oil, grinding to make pulp; grinding to 60-180 meshes and press-filtering at 30-70 deg.C to obtain oil pump, and making the oil content of peanut cake be reduced to 2-4% of obtain peanutcrude oil ,heating the crude oil to 50-80 deg.C and adding water whose adding quantity is 10-30% of oil weight, stirring, precipitating, taking supernatant oil, heating to 60-80 deg.C, dehydrating under the condition of the vacuum for 10-30 min. and filtering at 0.1-0.3 MPa so as to obtain the low-temp. peanut oil.

Description

technical field [0001] The invention relates to a method for processing edible oil from peanuts with high oil content, and belongs to the technical field of edible vegetable oil processing methods. Background technique [0002] The production process of vegetable oil is to use oil seeds such as peanuts and soybeans as raw materials, degrease to obtain crude oil, and then refine the crude oil to obtain finished oil. At present, the high-temperature method is generally used in the production of peanut oil at home and abroad, and some low-temperature leaching methods are also used. [0003] The high-temperature method of oil production is to heat the raw materials to 120-140 ° C and steam fry for 40-60 minutes. One method is to squeeze the oil out of the oil from the steamed and fried materials with a screw press. The temperature of the raw materials during extrusion is as high as 200 -240°C; Another method is to extrude the steamed and fried material by hydraulic method. Alth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/06
Inventor 郑存良赵森林李笑文张文敏褚秀生翟保民高营林赵焕礼吕自强杨帆张大维
Owner 冀中能源邢台矿业集团有限责任公司
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