CN106939184B - Cold pressing method of okra oil - Google Patents
Cold pressing method of okra oil Download PDFInfo
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- CN106939184B CN106939184B CN201710351030.0A CN201710351030A CN106939184B CN 106939184 B CN106939184 B CN 106939184B CN 201710351030 A CN201710351030 A CN 201710351030A CN 106939184 B CN106939184 B CN 106939184B
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/06—Production of fats or fatty oils from raw materials by pressing
Abstract
A cold pressing method of okra oil belongs to the technical field of agricultural product processing, and comprises thirteen steps of cleaning, impurity removal, grading, cleaning, sterilization, drying, spreading for cooling, rotation, crushing, pressing, filtering, filling, inspection and sterilization; the microwave sterilization method has the beneficial effects that the microwave sterilization method is adopted, so that the sterilization effect can be achieved in a low-temperature environment; spreading for cooling before cold pressing to ensure natural flavor and color of okra oil; the high-speed rotation is carried out, so that each molecule in the okra seeds can be in a pre-separation state, the okra seeds are crushed immediately after the rotation, and fat components are kept in a separation state, so that the cold pressing is carried out, the oil yield can be effectively improved, and the cold pressing oil yield is improved from about 10% to about 15% through inspection; the okra oil is ensured to have natural flavor and color, and the product quality is improved.
Description
Technical Field
The invention relates to the technical field of agricultural product processing, in particular to a cold pressing method of okra oil.
Background
Okra is an annual herb of the family malvaceae, harvested as a tender pod for consumption, and also edible as flowers and young leaves. The green and red tea is crisp, tender and succulent in taste, smooth and not greasy, unique in fragrance, and capable of extracting oil from seeds. China was introduced from india at the beginning of the 20 th century. It is called "plant gold okra" and is a good medicine for reducing blood sugar. The okra can be further processed into scented tea, beverage, capsule, dried vegetable, oil, etc.
The okra oil is vegetable oil extracted by cold pressing mature high-quality okra seeds through a physical process. Analyzing the main fatty acid components by the gas chromatography, wherein the obtained main fatty acid contents are respectively as follows: 0.2% of myristic acid, 30.6% of palmitic acid, 0.5% of palmitoleic acid, 4.2% of stearic acid, 23.8% of oleic acid, 30.8% of linoleic acid, 0.3% of linolenic acid and 0.6% of arachidic acid, the fragrance is about four times of that of sesame oil, and the sesame oil is rich in minerals such as vitamins, minerals, proteins, vitamin E, lecithin, calcium, phosphorus, iron, potassium, magnesium and the like, and is high-grade vegetable oil with extremely rich nutrition.
Frequent eating of okra oil can promote blood circulation, prevent arteriosclerosis and arteriosclerosis complications, hypertension, heart disease, heart failure, renal failure, cerebral hemorrhage, aging resistance, improve human brain memory, prevent senile dementia, improve digestive system function, ensure high human body digestibility of unsaturated fatty acid in okra oil, reduce gastric acid, and prevent diseases such as gastritis and duodenal ulcer; also has the function of moistening the intestines, and can effectively relieve constipation after being eaten for a long time. The medicine can be used as burn medicine, gastric ulcer, wound healing medicine, antispasmodic medicine and nerve calming agent.
At present, the okra oil is generally extracted by cold pressing through a physical process, and the cold pressed oil is not damaged, does not need to be added with an additive, and can be stored for a long time. The cold pressed oil has pure natural characteristics, can completely retain the nutrient components in the okra seed oil, and avoids the adverse effect generated by the traditional high-temperature oil pressing processing. The cold pressed finished oil retains the natural flavor and color of the oil, completely retains the physiological active substances in the oil, and is original in taste and flavor, thus being a choice for healthy life.
However, the existing production of the okra oil still has some problems to be solved urgently, namely the oil yield of the cold-pressed okra oil is very low and is generally only 8% -10%, and a large amount of nutrient components are seriously wasted; in addition, the okra oil has strong fragrance in production but has a half-raw taste after being produced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cold pressing method of okra oil, which can improve the oil yield and enhance the flavor of original juice aiming at the defects of the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that the cold pressing method of the okra oil is characterized by comprising thirteen steps of cleaning, impurity removal, grading, cleaning, sterilization, drying, spreading for cooling, rotation, crushing, pressing, filtering, filling, inspection and sterilization, and the specific process method is as follows.
⑴ cleaning, selecting okra seeds with full seeds, no impurities and no damage.
⑵ removing impurities, removing impurities from Abelmoschus esculentus seeds with an impurity remover.
⑶ grading, removing impurities from Abelmoschus esculentus seeds with color sorter, and grading.
⑷ washing, namely washing the classified okra seeds.
⑸ sterilizing by microwave sterilization machine at 600-1200 MHz and 60-70 deg.C for 7-9 min.
⑹ drying, drying the okra seeds in a dryer in a sterile workshop, controlling the temperature of the dryer to be between 40 ℃ and 60 ℃ and drying for 120-.
⑺ spreading for cooling, namely spreading the dried okra seeds in a spreading and cooling machine until the temperature is lower than 30 ℃.
⑻ rotating, namely putting the spread and cooled okra seeds into a high-speed rotating machine to rotate at a high speed of 8000-30000r/min and a rotating bin radius of 50cm for 6-8 min.
⑼ pulverizing, namely immediately putting the okra seeds which rotate at high speed into a pulverizer to pulverize.
⑽ cold pressing, placing pulverized semen Abutili in cold pressing machine, and controlling temperature within 60 deg.C during cold pressing.
⑾ filtering, collecting oil, and filtering to obtain okra oil.
⑿ and packaging okra oil.
⒀ and (4) inspecting and sterilizing, namely packaging and inspecting the filled product, and then performing ultraviolet sterilization to obtain the okra oil finished product.
And the classification is to classify the okra seeds according to the fullness degree and separate and squeeze the classified okra seeds. Therefore, the okra seeds of different grades are subjected to different cold pressing pressures during cold pressing, so that impurity leaching is reduced, the strength during filtering is further reduced, and the quality of oil products is improved.
The grading method is that seeds are divided into a special grade, a high grade and a qualified grade according to the plump degree of the okra seeds, wherein the special grade accounts for 20 percent of the total amount, the high grade accounts for 60 percent of the total amount, and the qualified grade accounts for 20 percent of the total amount.
The invention has the advantages that the microwave sterilization method is adopted, so that the sterilization effect can be obtained in a low-temperature environment; the okra oil is spread for cooling before cold pressing, so that the natural flavor and color of the okra oil can be ensured, high-speed rotation is performed, molecules in okra seeds can be in a pre-separation state, the okra seeds are immediately crushed after rotation, and fat components are kept in a separation state, so that the cold pressing is performed, the oil yield can be effectively improved, and the cold pressing oil yield is improved to about 15% from about 10% in the prior art through inspection; the okra oil is ensured to have natural flavor and color, and the product quality is improved.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to illustrate the invention but not to limit it further, and should not be construed as limiting the scope of the invention.
The oil yield of the existing cold oil of okra is very low, generally only 8% -10%, and a large amount of nutrient components are seriously wasted; in addition, the okra oil has pure fragrance in production but always has a half-raw taste after being produced. Generally, the problem is solved by adjusting the overall process steps, which is considered to be caused by the fact that the okra is dried at a relatively high temperature, and the semi-odor degree is reduced after the baking temperature is reduced.
Example 1.
⑴ cleaning, selecting okra seeds with full seeds, no impurities and no damage.
⑵ removing impurities, removing impurities from Abelmoschus esculentus seeds with an impurity remover.
⑶ grading by color sorter to further remove impurities from Abelmoschus esculentus seeds, and grading, wherein the company classifies seeds into super grade, top grade and qualified grade according to the plumpness of Abelmoschus esculentus seeds, the super grade generally accounts for 20% of the total weight, the top grade generally accounts for 60% of the total weight, and the qualified grade accounts for 20% of the total weight.
⑷ cleaning, cleaning the classified okra seeds, and cleaning 500kg of high-grade okra seeds in the embodiment.
⑸ sterilizing by microwave sterilization at 600MHz and 60 deg.C for 9 min.
⑹ oven drying, and oven drying okra seeds in a sterile workshop with a dryer at 40 deg.C for 180 min.
⑺ spreading for cooling, namely spreading the dried okra seeds in a spreading and cooling machine until the temperature of the okra seeds is 30 ℃.
⑻ rotating, namely putting the spread and cooled okra seeds into a high-speed rotating machine to rotate at a high speed of 8000r/min for 8min at a rotating bin radius of 50 cm.
⑼ pulverizing, namely immediately putting the okra seeds which rotate at high speed into a pulverizer to pulverize.
⑽ cold pressing, placing pulverized semen Abutili in cold pressing machine, and controlling temperature within 60 deg.C during cold pressing.
⑾ filtering, collecting oil, and filtering to obtain 75.11kg of okra oil.
⑿ and packaging okra oil.
⒀ and (4) inspecting and sterilizing, namely packaging and inspecting the filled product, and then performing ultraviolet sterilization to obtain the okra oil finished product.
Example 2.
⑴ cleaning, selecting okra seeds with full seeds, no impurities and no damage.
⑵ removing impurities, removing impurities from Abelmoschus esculentus seeds with an impurity remover.
⑶ grading by color sorter to further remove impurities from Abelmoschus esculentus seeds, and grading, wherein the company classifies seeds into super grade, top grade and qualified grade according to the plumpness of Abelmoschus esculentus seeds, the super grade generally accounts for 20% of the total weight, the top grade generally accounts for 60% of the total weight, and the qualified grade accounts for 20% of the total weight.
⑷ cleaning, cleaning the classified okra seeds, and cleaning 500kg of high-grade okra seeds in the embodiment.
⑸ sterilizing by microwave sterilization at 900MHz and 65 deg.C for 8 min.
⑹ oven drying, and oven drying okra seeds in a sterile workshop with a dryer at 50 deg.C for 150 min.
⑺ spreading for cooling, namely spreading the dried okra seeds in a spreading and cooling machine until the temperature of the okra seeds is 29 ℃.
⑻ rotating, namely putting the spread and cooled okra seeds into a high-speed rotating machine to rotate at high speed of 20000r/min and the radius of a rotating bin of 50cm for 7 min.
⑼ pulverizing, namely immediately putting the okra seeds which rotate at high speed into a pulverizer to pulverize.
⑽ cold pressing, placing pulverized semen Abutili in cold pressing machine, and controlling temperature within 60 deg.C during cold pressing.
⑾ filtering, collecting oil, and filtering to obtain 76.37kg of okra oil.
⑿ and packaging okra oil.
⒀ and (4) inspecting and sterilizing, namely packaging and inspecting the filled product, and then performing ultraviolet sterilization to obtain the okra oil finished product.
Example 3.
⑴ cleaning, selecting okra seeds with full seeds, no impurities and no damage.
⑵ removing impurities, removing impurities from Abelmoschus esculentus seeds with an impurity remover.
⑶ grading by color sorter to further remove impurities from Abelmoschus esculentus seeds, and grading, wherein the company classifies seeds into super grade, top grade and qualified grade according to the plumpness of Abelmoschus esculentus seeds, the super grade generally accounts for 20% of the total weight, the top grade generally accounts for 60% of the total weight, and the qualified grade accounts for 20% of the total weight.
⑷ cleaning, cleaning the classified okra seeds, and cleaning 500kg of high-grade okra seeds in the embodiment.
⑸ sterilizing by microwave sterilization at 1200MHz and 70 deg.C for 7 min.
⑹ oven drying, and oven drying okra seeds in sterile workshop with dryer at 60 deg.C for 120 min.
⑺ spreading for cooling, namely spreading the dried okra seeds in a spreading and cooling machine until the temperature of the okra seeds is 28 ℃.
⑻ rotating, namely putting the spread and cooled okra seeds into a high-speed rotating machine to rotate at a high speed of 30000r/min for 6min at a rotating bin radius of 50 cm.
⑼ pulverizing, namely immediately putting the okra seeds which rotate at high speed into a pulverizer to pulverize.
⑽ cold pressing, placing pulverized semen Abutili in cold pressing machine, and controlling temperature within 60 deg.C during cold pressing.
⑾ filtering, collecting oil, and filtering to obtain okra oil 74.45 kg.
⑿ and packaging okra oil.
⒀ and (4) inspecting and sterilizing, namely packaging and inspecting the filled product, and then performing ultraviolet sterilization to obtain the okra oil finished product.
Comparative example 4 was pressed by the company's last year method.
The okra oil is perceived to have a half-cooked taste, so the company adopts a low baking temperature method when drying okra.
⑴ cleaning, selecting okra seeds with full seeds, no impurities and no damage.
⑵ removing impurities, removing impurities from Abelmoschus esculentus seeds with an impurity remover.
⑶ grading by color sorter to further remove impurities from Abelmoschus esculentus seeds, and grading, wherein the company classifies seeds into super grade, top grade and qualified grade according to the plumpness of Abelmoschus esculentus seeds, the super grade generally accounts for 20% of the total weight, the top grade generally accounts for 60% of the total weight, and the qualified grade accounts for 20% of the total weight.
⑷ cleaning, cleaning the classified okra seeds, and cleaning 500kg of high-grade okra seeds in the embodiment.
⑸ oven drying, and oven drying okra seeds in a sterile workshop with a dryer at 50 deg.C for 150 min.
⑹ spreading for cooling, namely spreading the dried okra seeds in a spreading and cooling machine until the temperature of the okra seeds is 29 ℃.
⑺ pulverizing, placing semen Abutili in pulverizer, and pulverizing.
⑻ cold pressing, placing pulverized semen Abutili in cold pressing machine, and controlling temperature within 60 deg.C during cold pressing.
⑼ filtering, collecting oil, and filtering to obtain okra oil 56.23 kg.
⑽ and (4) filling the okra oil to obtain the okra oil finished product.
⑾ sterilizing, namely sterilizing the okra oil finished product at 121 ℃ for 15 minutes, cooling to normal temperature, and boxing and warehousing qualified products.
Comparative example 5 was obtained by pressing in the usual manner.
⑴ cleaning, selecting okra seeds with full seeds, no impurities and no damage.
⑵ removing impurities, removing impurities from Abelmoschus esculentus seeds with an impurity remover.
⑶ grading by color sorter to further remove impurities from Abelmoschus esculentus seeds, and grading, wherein the company classifies seeds into super grade, top grade and qualified grade according to the plumpness of Abelmoschus esculentus seeds, the super grade generally accounts for 20% of the total weight, the top grade generally accounts for 60% of the total weight, and the qualified grade accounts for 20% of the total weight.
⑷ cleaning, cleaning the classified okra seeds, and cleaning 500kg of high-grade okra seeds in the embodiment.
⑸ oven drying, and oven drying okra seeds in a sterile workshop with a dryer at 90 deg.C for 30 min.
⑹ spreading for cooling, spreading the dried okra seeds, and naturally cooling to room temperature.
⑺ pulverizing, placing semen Abutili in pulverizer, and pulverizing.
⑻ cold pressing, placing pulverized semen Abutili in cold pressing machine, and controlling temperature within 60 deg.C during cold pressing.
⑼ filtering, collecting oil, and filtering to obtain 51.55kg of okra oil.
⑽ and (4) filling the okra oil to obtain the okra oil finished product.
⑾ sterilizing, namely sterilizing the okra oil finished product at 121 ℃ for 15 minutes, cooling to normal temperature, and boxing and warehousing qualified products.
The products produced in the embodiments are tested, and the related technical indexes can meet the requirements of the national GB2716-2005 standard. However, the oil yield and the color, smell and taste are greatly different, and the following comparison table is obtained by directly calculating and comparing the oil yield and comparing the color, smell and taste.
Therefore, the oil yield of the okra oil produced by the method can be greatly improved, and the oil yield is increased from about 10% to about 15%. The flavor and taste effect can be greatly improved, the original ecological taste is kept, and the produced okra oil is golden in color, pure and clean in smell and pure and raw in taste. In particular, the mouthfeel of the semi-raw or semi-cooked incense is substantially improved in the taste feeling.
Claims (2)
1. A cold pressing method of okra oil is characterized by comprising thirteen steps of cleaning, impurity removal, grading, cleaning, sterilization, drying, spreading for cooling, rotation, crushing, squeezing, filtering, filling, inspection and sterilization, and the specific process method comprises the following steps:
⑴ cleaning, selecting plump, impurity-free and undamaged okra seeds;
⑵ removing impurities by removing impurities from Abelmoschus esculentus seeds with an impurity remover;
⑶ grading by further removing impurities from Abelmoschus esculentus seeds with a color selector, and grading by grading Abelmoschus esculentus seeds according to plumpness and squeezing the separated seeds;
⑷ cleaning, namely cleaning the classified okra seeds;
⑸ sterilizing by microwave sterilization machine at 600-1200 MHz and 60-70 deg.C for 7-9 min;
⑹ drying, drying the okra seeds in a dryer in a sterile workshop, wherein the temperature of the dryer is controlled between 50 ℃ and 60 ℃, and the drying time is 120-;
⑺ spreading for cooling, namely spreading the dried okra seeds in a spreading cooling machine until the temperature is lower than 30 ℃;
⑻ rotating, namely putting the spread and cooled okra seeds into a high-speed rotating machine to rotate at a high speed of 8000-;
⑼ pulverizing, namely immediately putting the okra seeds which rotate at high speed into a pulverizer to pulverize;
⑽ cold pressing, namely cold pressing the crushed okra seeds in a cold pressing machine, wherein the temperature is controlled within 60 ℃ during the cold pressing process;
⑿ bottling, namely, bottling the okra oil;
⒀ and (4) inspecting and sterilizing, namely packaging and inspecting the filled product, and then performing ultraviolet sterilization to obtain the okra oil finished product.
2. The cold pressing method of okra oil according to claim 1, wherein the classification comprises classifying the seeds into a super grade, a high grade and a qualified grade according to the plumpness of the okra seeds, wherein the super grade accounts for 20% of the total amount, the high grade accounts for 60% of the total amount, and the qualified grade accounts for 20% of the total amount.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206143151U (en) * | 2016-08-29 | 2017-05-03 | 惠安县灿鑫新材料科技有限公司 | Low temperature squeezes device |
| CN106626481A (en) * | 2015-10-28 | 2017-05-10 | 丹阳华都园艺有限公司 | Oil press for Abelmoschus esculentus seed oil |
| CN106635417A (en) * | 2015-11-02 | 2017-05-10 | 丹阳华都园艺有限公司 | Method for extracting okra essential oil |
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- 2017-05-18 CN CN201710351030.0A patent/CN106939184B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626481A (en) * | 2015-10-28 | 2017-05-10 | 丹阳华都园艺有限公司 | Oil press for Abelmoschus esculentus seed oil |
| CN106635417A (en) * | 2015-11-02 | 2017-05-10 | 丹阳华都园艺有限公司 | Method for extracting okra essential oil |
| CN206143151U (en) * | 2016-08-29 | 2017-05-03 | 惠安县灿鑫新材料科技有限公司 | Low temperature squeezes device |
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