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Method for extracting black wheat germ oil

A wheat germ oil and extraction method technology, which is applied in the directions of fat oil/fat production, fat oil/fat refining, and fat production, can solve the problems of incomplete removal of impurities, influence on oil quality, complicated process, etc., and achieve low production costs and reduced production costs. The effect of high dosage and high purity

Active Publication Date: 2014-06-25
YANGLING PIAOXIANG EDIBLE OIL & FAT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the solvent extraction method commonly used for wheat germ oil obviously has problems such as complex process, solvent residue in the finished oil, and incomplete removal of impurities, which affects the quality of the oil.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1. Heat the black wheat germ raw material to 72°C, pass it through a 70-mesh sieve after 9 minutes of heat preservation, and take the sieve for later use; then dry the sieve at a constant temperature at 100°C to obtain the water content (water quality: content) is 3% of the net material; then cold press the net material at a temperature of 75 ° C and a pressure of 3.5 MPa, and obtain crude oil after filtration;

[0032] Step 2. Add the lye and the crude oil described in step 1 into the alkali refining tank, heat up to 62°C under stirring conditions, then let it stand for precipitation, release the precipitate, and obtain the oil plant; the Baume degree of the lye is 16 ° B é, the quality of lye is 0.23% of crude oil quality; The rate of said heating up is 10 ℃ / min; Described lye is the NaOH solution that mass concentration is 10%;

[0033] Step 3. Heat the oil described in step 2 to 78°C, then add brine with a temperature of 82°C to the heated oil, and stir for 10 ...

Embodiment 2

[0040] Step 1. Heat the raw material of black wheat germ to 70°C, pass it through a 60-mesh sieve after keeping it warm for 10 minutes, and take the sieve for later use; content) is 5% of the net material; then cold press the net material at a temperature of 70°C and a pressure of 4.0MPa, and obtain crude oil after filtration;

[0041] Step 2, adding the lye and the crude oil described in step 1 into the alkali refining tank, raising the temperature to 60°C under stirring conditions, then standing for precipitation, releasing the precipitate, and obtaining the oil plant; the Baume degree of the lye is 15 ° of B é, the quality of lye is 0.25% of crude oil quality; The rate of described heating up is 10 ℃ / min; Described lye is the NaOH solution that mass concentration is 8%;

[0042]Step 3. Heat the oil described in step 2 to 80°C, then add brine with a temperature of 80°C to the heated oil, and stir for 12min at 40r / min; the mass concentration of the brine is 5%, and the brine ...

Embodiment 3

[0049] Step 1. Heat the black wheat germ raw material to 75°C, pass through an 80-mesh sieve after 8 minutes of heat preservation, and take the sieve for later use; then dry the sieve at a constant temperature at 98°C to obtain the water content (water quality: content) is 2% of the net material; then cold press the net material at a temperature of 80 ° C and a pressure of 3.0 MPa, and obtain crude oil after filtration;

[0050] Step 2: Add the lye and the crude oil described in step 1 into the alkali refining tank, heat up to 65°C under stirring conditions, then let it stand for precipitation, release the precipitate, and obtain the oil plant; the Baume degree of the lye is 17 ° B é, the quality of lye is 0.2% of crude oil quality; The rate of described heating up is 10 ℃ / min; Described lye is the NaOH solution that mass concentration is 9%;

[0051] Step 3: Heat the oil described in step 2 to 75°C, then add brine with a temperature of 85°C to the heated oil, and stir for 11 ...

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Abstract

The invention discloses a method for extracting black wheat germ oil. The method comprises the following steps: 1, heating a wheat germ raw material, performing heat preservation, screening, drying an oversize product at a constant temperature to obtain a pure material, performing cold pressing on the pure material, and filtering to obtain crude oil; 2, adding an alkali liquid and the crude oil into an alkali refining tank, heating, performing static settlement, and discharging precipitate to obtain an oil material; 3, heating the oil material, subsequently adding saline water, and stirring; 4, adding saline water into the stirred oil material, and stirring; 5, adding hot water into the stirred oil material, stirring, subsequently standing, and discharging water and precipitates to obtain a washed oil material; 6, putting the washed oil material into a decoloring pot, dehydrating in vacuum, subsequently adding activated carbon, stirring, decoloring, cooling and filtering; 7, performing deodorization treatment on the decolored oil material; 8, cooling the deodorized oil material, and subsequently screening to obtain the black wheat germ oil. According to the method, a three-step washing method is adopted, so that the purity of an oil product is improved; compared with oil obtained by using an ordinary washing method, the oil product has less impurities and is higher in purity.

Description

technical field [0001] The invention belongs to the technical field of vegetable oil extraction methods, in particular to a method for extracting triticale germ oil. Background technique [0002] The lack of trace elements iron and zinc is the main cause of human iron deficiency anemia (IDA) and malnutrition. The iron and zinc contents of organic triticale are as high as 749mg / kg and 135mg / kg respectively, which are 19.2 times and 4.1 times that of common wheat, ranking first among the existing food crops at home and abroad. [0003] At present, edible oil is mostly produced by pressing method or atmospheric pressure solvent extraction method. The yield of refined oil is low, the solvent residue is high, and the nutrients in the oil are seriously damaged under high temperature conditions. Not only the nutritional value of edible oil products is low, but also the safety is guaranteed. Poor, no competitive advantage, there is still a lot of waste of raw material resources. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/06C11B3/06C11B3/10C11B3/00
Inventor 席科峰
Owner YANGLING PIAOXIANG EDIBLE OIL & FAT
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