Method for extracting and purifying Mallotus nepalensis oil
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A kind of jatropha oil and jacaranda technology, applied in the extraction and purification of jatropha oil, the field of jatropha oil extraction and purification, can solve the problem of bitter taste of jacaranda oil, achieve the effect of reducing high temperature process, reducing filtration resistance and reducing loss
Inactive Publication Date: 2017-08-18
湖北旭舟林农科技有限公司
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The oil content of jacaranda oil is as high as 40%, and the ratio of linoleic acid is as high as 75%, but the content of saponins and pigments is very high, which makes the jacarnia oil taste very bitter, which makes the jacaranda oil different from ordinary vegetable oils
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Embodiment 1
[0021] A method for refining and purifying jatropha oil, the steps are:
[0022] Step 1. Squeeze dried jatropha to extract crude oil; or dry jatropha and crush through a 35 or 38 or 40 or 42 or 45 mesh sieve and extract with absolute ethanol to obtain an alcohol extract of jacarnia oil;
[0023] Step 2: add 1, 2 or 3 times the amount of absolute ethanol to the crude oil extracted from Jacarna japonica, stir thoroughly and decolorize and deodorize with activated carbon filtration; or directly decolorize and deodorize the alcohol extract in step 1 with activated carbon filtration;
[0024] Step 3. Let the filtrate filtered by activated carbon in step 2 stand for 1 or 3 or 5 or 8 or 10 hours to naturally stratify, and separate the stratified solution: extract the upper ethanol phase, and the remaining lower oil phase is initially purified jacaranda oil;
[0025] Step 4, add 1:1 volume of 95 or 97 or 99% ethanol to the preliminary purified jacaranda oil obtained in step 3, then f...
Embodiment 2
[0036] A method for refining and purifying jacarnia oil, applied to the purifying and refining of rapeseed oil, the steps are:
[0037] Step 1. Crude oil is extracted from dried rapeseed;
[0038] Step 2. Heat the crude oil extracted from rapeseed to 60 or 62 or 64 or 66 or 68 or 70 degrees Celsius, and then add 1 or 2 or 3 times the amount of anhydrous water heated to 60 or 63 or 65 or 67 or 70 degrees Celsius Ethanol or 95-99% ethanol, fully stirred and miscible, decolorized and deodorized by activated carbon filtration;
[0039] Step 3. Let the filtrate filtered by activated carbon in step 2 stand for 1 or 3 or 5 or 8 or 10 hours to naturally stratify, and separate the stratified solution: extract the upper ethanol phase, and the remaining lower oil phase is initially purified rapeseed oil;
[0040] Step 4, add 1 or 3 or 5% pure water by volume to the preliminary purified rapeseed oil obtained in step 3, let stand for 5 or 8 or 10 or 14 or 17 or 20 hours, separate natural...
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Abstract
The invention discloses a method for extracting and purifying Mallotus nepalensis oil, which comprises the following steps: (1) squeezing dried Mallotus nepalensis to obtain raw oil; (2) adding anhydrous ethanol to the squeezed Mallotus nepalensis raw oil, stirring to dissolve, filtering with activated carbon for decoloring and deodorizing; (3) standing the filtrate filtered by the activated carbon, layering, and separating the layered liquid: taking out the ethanol phase at the upper layer, and collecting the oil phase at the lower layer as initially purified Mallotus nepalensis oil; (4) adding ethanol to the Mallotus nepalensis oil, stirring, standing, and layering; (5) separating the solution after standing and layering: taking out the ethanol phase at the upper layer, and collecting the oil phase at the lower layer as purified Mallotus nepalensis oil; (6) adding purified water to the purified Mallotus nepalensis oil to remove residual ethanol, removing the ethanol water at the upper layer, and collecting the purified oil at the lower layer; and (7) performing vacuum extraction on the purified Mallotus nepalensis oil, and cooling to obtain Mallotus nepalensis oil finished product. The method disclosed by the invention is feasible and simple in operation, and adopts an extraction method to rapidly and simply deodorize, and the entire process adopts low-temperature treatment, and does not need heating.
Description
technical field [0001] The invention belongs to the technical field of tung oil extraction, and more specifically relates to a method for extracting and purifying tung oil, which is suitable for extracting and purifying tung oil. Background technique [0002] Edible oils of vegetable origin are the main source of human edible oils. There are three basic methods for producing edible oil from plant sources: one is to use physical methods to extract oil, which has a low oil yield, but there is no solvent pollution, and the quality of the oil is better; the other is to use chemical solvents such as No. 6 gasoline or benzene Extract the total oil extract from plant materials, and then use methods such as dewaxing, degreasing, decolorization, and deacidification to obtain high-quality edible oil. This method has a high oil yield, but the production process is relatively complicated, and there are solvents Residue; The third method is to extract edible oil by water enzymatic metho...
Claims
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Application Information
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