CN109370767A - A kind of camellia oil and preparation method thereof - Google Patents

A kind of camellia oil and preparation method thereof Download PDF

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Publication number
CN109370767A
CN109370767A CN201811394689.5A CN201811394689A CN109370767A CN 109370767 A CN109370767 A CN 109370767A CN 201811394689 A CN201811394689 A CN 201811394689A CN 109370767 A CN109370767 A CN 109370767A
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CN
China
Prior art keywords
oil
camellia oil
mixture
tea seed
rice bran
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811394689.5A
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Chinese (zh)
Inventor
邓菲菲
邓仕运
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Hengyang Shijie Agricultural Development Co Ltd
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Hengyang Shijie Agricultural Development Co Ltd
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Priority to CN201811394689.5A priority Critical patent/CN109370767A/en
Publication of CN109370767A publication Critical patent/CN109370767A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B1/00Production of fats or fatty oils from raw materials
    • C11B1/02Pretreatment
    • C11B1/04Pretreatment of vegetable raw material
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B1/00Production of fats or fatty oils from raw materials
    • C11B1/06Production of fats or fatty oils from raw materials by pressing
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B3/00Refining fats or fatty oils
    • C11B3/001Refining fats or fatty oils by a combination of two or more of the means hereafter
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B3/00Refining fats or fatty oils
    • C11B3/008Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis

Abstract

A kind of preparation method of camellia oil, include the following steps: to produce tea seed kernel and rice bran mixture, tea seed is dried, is cleaned, is shelled, selects excellent impurity elimination, curing, the rice bran fried is added and stirs evenly, mixture is obtained, wherein rice bran and the tea seed kernel weight ratio after curing are 1:5-10;Then by squeezing twice, obtained camellia oil content of phytosterol is high, and quality is high.

Description

A kind of camellia oil and preparation method thereof
Technical field
The invention belongs to agricultural technology fields, and in particular to a kind of camellia oil that content of phytosterol is high and its preparation side Method.
Background technique
Vegetable oil is one of content of phytosterol food more abundant, is white powder, can also have ester shape to be dissolved in grease, Phytosterol is divided into 4- demethlyate sterol, 4- methylsterol and 4,4 '-dimethylsterols three classes, and demethlyate sterol mainly has Β- Sitosterol, stigmasterol, campesterol and brassicasterol etc. are primarily present in the structure of phytosterol and animal in the seed of plant The structure of property sterol is substantially similar, is uniquely a difference in that the difference of c-4 connected number of methyl groups and c-11 side chains, exactly this Small different causes on a little side chains make it have various physiological functions.
Phytosterol is used for the heart disease of prophylactic treatment coronary atherosclerosis class, to treatment ulcer, Skin Squamous Cell Carcinoma, palace Neck cancer etc. has apparent curative effect;In addition, phytosterol is also important the raw materials for production of steroid drugs and vitamine D3.Plant steroid Alcohol has good antioxidant, can make food additives (antioxidant, nutritional additive);Also it is former to can be used as growth of animal agent Material promotes growth of animal, promotes animal health.
What content of phytosterol was minimum in vegetable oil is camellia oil, content be only 110mg/100g or so namely content only It is 0.1% or so;And content is 4.5-6.5% in rice bran oil, in order to improve content of phytosterol in tea oil, keeps its nutrition balanced, Rice bran can be added to extract oil together.
Summary of the invention
There is provided it is an object of the invention to overcome the deficiencies in the prior art a kind of camellia oil that content of phytosterol is high and Preparation method.
The technical scheme is that a kind of preparation method of camellia oil, in turn includes the following steps:
(1) tea seed kernel and rice bran mixture are produced: tea seed being dried, is cleaned, is shelled, selects excellent impurity elimination, curing, addition fries Rice bran stir evenly, obtain mixture, wherein rice bran and curing after tea seed kernel weight ratio be 1:6-11;Rice bran was added Few, obtained oily content of phytosterol is low, and rice bran is added excessively, and oil production is low, and production efficiency is low;
(2) single pressing: the mixture that step (1) is obtained squeezes camellia oil sedimentation filtration into oil press, obtains oil cake;
(3) twice pressing: adding camellia oil into oil cake, obtains withered oil cake mixture, wherein making in withered oil cake mixture Reach 25-30 mass % containing camellia oil;The crusher that withered oil cake mixture is put into after an other preheating is squeezed, is filtered To camellia oil and filter residue;
Curing described in step (1) is that parch curing is carried out to tea seed kernel, and parch temperature is 130-150 DEG C, tea seed kernel moisture control For system in 3-5 mass %, tea seed kernel color is changed into yellow or yellowish-brown from faint yellow.
Step (2) is that the mixture for obtaining step (1) is cooled to 50-80 DEG C, is squeezed into oil press.
Camellia oil is added excessive in step (3), be easy to cause waste, and addition is very few, and the moist degree of rice bran is inadequate, wherein Oil yield it is low.
Need to carry out water before traditional rice bran oil expression and steam moisture absorption, finally to carry out heating aquation dehydration, nutrition therein at Phosphatide is divided also to be deviate from, and the rice bran oil after aquation is apt to deteriorate, rice bran oil is squeezed in camellia oil and formed by the method for the present invention Ready-mixed oil not only simplifies the milling process of rice bran oil, also adds the content of phytosterol in camellia oil, keeps its nutrition balanced.
The method of the present invention further includes following steps:
(4) it cleans: including stirring growing the grain, being filtered to remove crystal, it is specific as follows: the camellia oil that step (3) obtains is cooled to 5-8 DEG C, stirring, speed of agitator 20-30r/min keeps stirring 24-30h at this temperature;Then -10--5 DEG C are cooled to, is stirred Growing the grain is mixed, speed of agitator 5-10r/min keeps growing the grain 5-9h at this temperature, precipitates crystal;It is filtered to remove crystal;Obtain mountain Tea oil.
The filter residue that step of the present invention (3) obtains, the weight with camellia oil can also be added during step (4) stirring growing the grain The camellia oil purity is high obtained than the tea seed cake for 1-2:100, is added, the crystal of precipitation have BaP, wax, colloid, moisture and It is wrapped in the harmful substances such as heavy metal therein, pesticide residue, protein, cellulose.
The method of the present invention further includes following steps:
(5) filling: nitrogen charging is filling.
The invention also includes the camellia oil that above method is prepared, content of phytosterol 300-400mg/100g.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will Understand, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.
Embodiment 1
(1) tea seed kernel and rice bran mixture are produced: tea seed being dried, is cleaned, is shelled, selects excellent impurity elimination, curing, addition fries Rice bran stir evenly, obtain mixture, wherein rice bran and curing after tea seed kernel weight ratio be 1:7;
(2) single pressing: being cooled to 50-60 DEG C for the mixture that step (1) obtains, and settled into oil press squeezing camellia oil Filter obtains oil cake;
(3) twice pressing: adding camellia oil into oil cake, obtains withered oil cake mixture, wherein making in withered oil cake mixture Reach 30 mass % containing camellia oil;The crusher that withered oil cake mixture is put into after an other preheating is squeezed, mountain is obtained by filtration Tea oil and filter residue;
(4) it cleans: including stirring growing the grain, being filtered to remove crystal, it is specific as follows: the camellia oil that step (3) obtains is cooled to 5-8 DEG C, stirring, speed of agitator 25r/min keeps stirring at this temperature for 24 hours;Then -10--8 DEG C are cooled to, is stirred feeding Crystalline substance, speed of agitator 10r/min keep growing the grain 9h at this temperature, precipitate crystal;It is filtered to remove crystal;Obtain camellia oil;
(5) filling: nitrogen charging is filling.
Embodiment 2
(1) tea seed kernel and rice bran mixture are produced, tea seed is dried, is cleaned, is shelled, selects excellent impurity elimination, curing, addition fries Rice bran stir evenly, obtain mixture, wherein rice bran and curing after tea seed kernel weight ratio be 1:7;
(2) single pressing: being cooled to 50-60 DEG C for the mixture that step (1) obtains and squeeze camellia oil sedimentation filtration into oil press, Obtain oil cake;
(3) twice pressing: adding camellia oil into oil cake, obtains withered oil cake mixture, wherein making in withered oil cake mixture Reach 30 mass % containing camellia oil;The crusher that withered oil cake mixture is put into after an other preheating is squeezed, mountain is obtained by filtration Tea oil and filter residue;
(4) clean: the filter residue for step (3) will be added in camellia oil that step (3) obtains obtaining, the weight ratio with camellia oil is 2: 100, it is cooled to 5-8 DEG C, stirring, speed of agitator 25r/min keeps stirring at this temperature for 24 hours;Then it is cooled to -10--8 DEG C, it is stirred growing the grain, speed of agitator 10r/min keeps growing the grain 9h at this temperature, precipitates crystal;It is filtered to remove crystal;? To camellia oil;
(5) filling: nitrogen charging is filling.
Embodiment 3
(1) tea seed kernel and rice bran mixture are produced: taking fresh tea seed, dried, cleaned, shelled, selecting excellent impurity elimination, curing, added Enter the rice bran fried to stir evenly, obtain mixture, wherein rice bran and the tea seed kernel weight ratio after curing are 1:9;
(2) single pressing: being cooled to 50-60 DEG C for the mixture that step (1) obtains and squeeze camellia oil sedimentation filtration into oil press, Obtain oil cake;
(3) twice pressing: adding camellia oil into oil cake, obtains withered oil cake mixture, wherein making in withered oil cake mixture Reach 30 mass % containing camellia oil;The crusher that withered oil cake mixture is put into after an other preheating is squeezed, mountain is obtained by filtration Tea oil and filter residue;
(4) clean: the filter residue for step (3) will be added in camellia oil that step (3) obtains obtaining, the weight ratio with camellia oil are 1.5:100 is cooled to 5-8 DEG C, and stirring, speed of agitator 25r/min keeps stirring at this temperature for 24 hours;Then be cooled to- 10--8 DEG C, it is stirred growing the grain, speed of agitator 10r/min keeps growing the grain 9h at this temperature, precipitates crystal;It is filtered to remove crystalline substance Body;Obtain camellia oil;
(5) filling: nitrogen charging is filling.
Embodiment 4
(1) tea seed kernel and rice bran mixture are produced: taking fresh tea seed, dried, cleaned, shelled, selecting excellent impurity elimination, curing, added Enter the rice bran fried to stir evenly, obtain mixture, wherein rice bran and the tea seed kernel weight ratio after curing are 1:9;
(2) single pressing: being cooled to 50-60 DEG C for the mixture that step (1) obtains and squeeze camellia oil sedimentation filtration into oil press, Obtain oil cake;
(3) twice pressing: adding camellia oil into oil cake, obtains withered oil cake mixture, wherein making in withered oil cake mixture Reach 25 mass % containing camellia oil;The crusher that withered oil cake mixture is put into after an other preheating is squeezed, mountain is obtained by filtration Tea oil and filter residue;
(4) clean: the filter residue for step (3) will be added in camellia oil that step (3) obtains obtaining, the weight ratio with camellia oil is 1: 100, it is cooled to 5-8 DEG C, stirring, speed of agitator 25r/min keeps stirring at this temperature for 24 hours;Then it is cooled to -10--8 DEG C, it is stirred growing the grain, speed of agitator 10r/min keeps growing the grain 9h at this temperature, precipitates crystal;It is filtered to remove crystal;? To camellia oil;
(5) filling: nitrogen charging is filling.
Comparative example 1
(1) it produces tea seed kernel: tea seed being dried, is cleaned, is shelled, selects excellent impurity elimination, curing;
(2) single pressing: being cooled to 50-60 DEG C for the mixture that step (1) obtains, and settled into oil press squeezing camellia oil Filter obtains oil cake;
(3) twice pressing: adding camellia oil into oil cake, obtains withered oil cake mixture, wherein making in withered oil cake mixture Reach 30 mass % containing camellia oil;The crusher that withered oil cake mixture is put into after an other preheating is squeezed, mountain is obtained by filtration Tea oil and filter residue;
(4) it cleans: including stirring growing the grain, being filtered to remove crystal, it is specific as follows: the camellia oil that step (3) obtains is cooled to 5-8 DEG C, stirring, speed of agitator 25r/min keeps stirring at this temperature for 24 hours;Then -10--8 DEG C are cooled to, is stirred feeding Crystalline substance, speed of agitator 10r/min keep growing the grain 9h at this temperature, precipitate crystal;It is filtered to remove crystal;Obtain camellia oil;
(5) filling: nitrogen charging is filling.
Comparative example 1 is not add rice bran with the difference of embodiment 1, using comparative example in following example 5 step (4) The filter residue that step (3) obtains.
Embodiment 5
(1) tea seed kernel and rice bran mixture are produced: tea seed being dried, is cleaned, is shelled, selects excellent impurity elimination, curing, addition fries Rice bran stir evenly, obtain mixture, wherein rice bran and curing after tea seed kernel weight ratio be 1:7;
(2) single pressing: being cooled to 50-60 DEG C for the mixture that step (1) obtains and squeeze camellia oil sedimentation filtration into oil press, Obtain oil cake;
(3) twice pressing: adding camellia oil into oil cake, obtains withered oil cake mixture, wherein making in withered oil cake mixture Reach 30 mass % containing camellia oil;The crusher that withered oil cake mixture is put into after an other preheating is squeezed, mountain is obtained by filtration Tea oil and filter residue;
(4) it cleans: the filter residue for 1 step of comparative example (3) will be added in camellia oil that step (3) obtains obtaining, the weight with camellia oil Amount is cooled to 5-8 DEG C, stirring, speed of agitator 25r/min keeps stirring at this temperature for 24 hours than being 2:100;Then cool down To -10--8 DEG C, it is stirred growing the grain, speed of agitator 10r/min keeps growing the grain 9h at this temperature, precipitates crystal;It crosses and filters out Remove crystal;Obtain camellia oil;
(5) filling: nitrogen charging is filling.
Statistics is shown in Table 1.
Table 1
It can be seen that the tea-seed oil content of phytosterol that the method for the present invention obtains is high, and quality is high.
The above content describes basic principles and main features of the invention, and the present invention is not limited to the above embodiments, Without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements are all It falls into scope of the claimed invention.

Claims (6)

1. a kind of preparation method of camellia oil, it is characterised in that in turn include the following steps:
(1) tea seed kernel and rice bran mixture are produced: tea seed being dried, is cleaned, is shelled, selects excellent impurity elimination, curing, addition fries Rice bran stir evenly, obtain mixture, wherein rice bran and curing after tea seed kernel weight ratio be 1:6-11;
(2) single pressing: the mixture that step (1) is obtained squeezes camellia oil sedimentation filtration into oil press, obtains oil cake;
(3) twice pressing: adding camellia oil into oil cake, obtains withered oil cake mixture, wherein making in withered oil cake mixture Reach 25-30 mass % containing camellia oil;The crusher that withered oil cake mixture is put into after an other preheating is squeezed, is filtered To camellia oil and filter residue;
(4) it cleans: including stirring growing the grain, being filtered to remove crystal, it is specific as follows: the camellia oil that step (3) obtains is cooled to 5-8 DEG C, stirring, speed of agitator 20-30r/min keeps stirring 24-30h at this temperature;Then -10--5 DEG C are cooled to, is stirred Growing the grain is mixed, speed of agitator 5-10r/min keeps growing the grain 5-9h at this temperature, precipitates crystal;It is filtered to remove crystal;Obtain mountain Tea oil.
2. the preparation method of camellia oil according to claim 1, it is characterised in that curing described in step (1) is to tea seed Benevolence carries out parch curing, and parch temperature is 130-150 DEG C, and the control of tea seed kernel moisture is in 3-5 mass %, and tea seed kernel color is from yellowish Color is changed into yellow or yellowish-brown.
3. the preparation method of camellia oil according to claim 1, it is characterised in that step (2) be step (1) is obtained it is mixed It closes object and is cooled to 50-80 DEG C, squeezed into oil press.
4. the preparation method of camellia oil according to claim 1, it is characterised in that be additionally added during step (4) stirring growing the grain The filter residue that step (3) obtains, the weight ratio with camellia oil are 1-2:100.
5. the preparation method of camellia oil according to claim 1, it is characterised in that further include following steps:
(5) filling: nitrogen charging is filling.
6. the camellia oil that any the method for claim 1-5 is prepared, content of phytosterol 300-400mg/100g.
CN201811394689.5A 2018-11-22 2018-11-22 A kind of camellia oil and preparation method thereof Pending CN109370767A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112825924A (en) * 2019-11-25 2021-05-25 湖南大三湘茶油股份有限公司 Sweet and fragrant camellia oil and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103960377A (en) * 2014-05-26 2014-08-06 赖琼玮 Woody corn oil and preparation method thereof
CN104263503A (en) * 2014-10-08 2015-01-07 湖南大三湘油茶科技有限公司 Highly-fragrant camellia oil and preparation method thereof
CN104789349A (en) * 2015-03-31 2015-07-22 湖南大三湘油茶科技有限公司 Super virgin camellia oil and preparation method thereof
CN104789350A (en) * 2015-03-31 2015-07-22 赖琼玮 Healthy safe strong-flavor camellia oil and preparation method thereof
CN105199836A (en) * 2015-09-29 2015-12-30 湖南天成农业开发有限公司 Method for processing nutrient camellia oleosa seed oil with concentrated fragrance
CN107312617A (en) * 2017-07-31 2017-11-03 田林县康益土特产有限公司 A kind of former odor type camellia oil and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103960377A (en) * 2014-05-26 2014-08-06 赖琼玮 Woody corn oil and preparation method thereof
CN104263503A (en) * 2014-10-08 2015-01-07 湖南大三湘油茶科技有限公司 Highly-fragrant camellia oil and preparation method thereof
CN104789349A (en) * 2015-03-31 2015-07-22 湖南大三湘油茶科技有限公司 Super virgin camellia oil and preparation method thereof
CN104789350A (en) * 2015-03-31 2015-07-22 赖琼玮 Healthy safe strong-flavor camellia oil and preparation method thereof
CN105199836A (en) * 2015-09-29 2015-12-30 湖南天成农业开发有限公司 Method for processing nutrient camellia oleosa seed oil with concentrated fragrance
CN107312617A (en) * 2017-07-31 2017-11-03 田林县康益土特产有限公司 A kind of former odor type camellia oil and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112825924A (en) * 2019-11-25 2021-05-25 湖南大三湘茶油股份有限公司 Sweet and fragrant camellia oil and preparation method thereof

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