阅读说明：本技术 一种柠檬籽油的生产方法 (Production method of lemon seed oil ) 是由 唐江 李峻峰 吴强 李轩 于 2021-09-08 设计创作，主要内容包括：本发明提供了一种柠檬籽油的生产方法,涉及柠檬加工技术领域。一种柠檬籽油的生产方法,包括以下步骤：S1：从柠檬果中取出柠檬籽并进行预处理；S2：将预处理后的柠檬籽进行低温榨油,得到第一粗柠檬籽油和柠檬籽碎；S3：将柠檬籽碎进行萃取,得到第二粗柠檬籽油；S4：将第一粗柠檬籽油和第二粗柠檬籽油混合为粗柠檬籽油,使用复合脱苦吸附材料进行脱苦处理；S5：粗柠檬籽油脱苦处理后依次进行脱胶、脱酸、脱色和脱臭,即制得柠檬籽油。本发明可以在生产过程中尽可能减少柠檬籽油的苦涩味,且对柠檬籽尽量榨取彻底,尽可能减少柠檬籽的油脂损耗。(The invention provides a production method of lemon seed oil, and relates to the technical field of lemon processing. A production method of lemon seed oil comprises the following steps: s1: taking out lemon seeds from lemon fruits and carrying out pretreatment; s2: squeezing the pretreated lemon seeds at low temperature to obtain first coarse lemon seed oil and lemon seed pieces; s3: crushing and extracting the lemon seeds to obtain second crude lemon seed oil; s4: mixing the first coarse lemon seed oil and the second coarse lemon seed oil into coarse lemon seed oil, and performing debittering treatment by using a composite debittering adsorbing material; s5: and (3) carrying out degumming, deacidification, decolorization and deodorization on the crude lemon seed oil in sequence after debittering treatment, thus obtaining the lemon seed oil. The invention can reduce the bitter taste of the lemon seed oil as much as possible in the production process, thoroughly squeeze the lemon seeds as much as possible and reduce the grease loss of the lemon seeds as much as possible.)

1. The production method of the lemon seed oil is characterized by comprising the following steps:

s1: taking out lemon seeds from lemon fruits and carrying out pretreatment;

s2: squeezing the pretreated lemon seeds at low temperature to obtain first coarse lemon seed oil and lemon seed pieces;

s3: crushing and extracting the lemon seeds to obtain second crude lemon seed oil;

s4: mixing the first coarse lemon seed oil and the second coarse lemon seed oil into coarse lemon seed oil, and performing debittering treatment by using a composite debittering adsorbing material;

s5: and (3) carrying out degumming, deacidification, decolorization and deodorization on the crude lemon seed oil in sequence after debittering treatment, thus obtaining the lemon seed oil.

2. The method for producing lemon seed oil according to claim 1, wherein the pretreatment of the lemon seeds in the step S1 comprises washing, acid hydrolysis, enzymatic hydrolysis and drying in sequence.

3. The method for producing lemon seed oil according to claim 1, wherein in step S2, oil is pressed for 20-30 min at a low temperature of 10-20 ℃ and a bore pressure of 20-30 MPa.

4. The method for producing lemon seed oil according to claim 1, wherein in step S3, the lemon seeds are extracted for 60-70 min at 80-90 ℃ by using an extracting agent, and the extraction is performed for 2-3 times.

5. The method for producing lemon seed oil according to claim 1, wherein the mass ratio of the volume of the extracting agent to the mass of the lemon seed pieces in the step S3 is 8-10: 1.

6. The method for producing lemon seed oil according to claim 4 or 5, wherein the extractant is petroleum ether, ethanol, acetone or toluene.

7. The production method of lemon seed oil according to claim 1, wherein the composite debittering and adsorbing material in the step S4 comprises the following components in parts by mass: 30-45 parts of S861 resin, 20-35 parts of XAD-16 ion exchange resin, 15-18 parts of HZ resin and 8-12 parts of LX-900 macroporous adsorption resin.

8. The production method of lemon seed oil according to claim 1, wherein the volume ratio of the mass of the composite debittering and adsorbing material in the step S4 to the crude lemon seed oil is 0.8-1.2: 1.

9. The method for producing lemon seed oil according to claim 1, wherein in step S4, the composite debitterizing adsorption material is added into the crude lemon seed oil, the mixture is oscillated at room temperature and 100-120 r/min for 20-24 h until the adsorption is balanced, and then the composite debitterizing adsorption material is filtered out.

10. The method for producing lemon seed oil according to claim 1, wherein in the step S5: (1) adding phosphoric acid into the crude lemon seed oil, stirring for 30min at 60-65 ℃, and then centrifuging at 800-1000 rpm/min to separate colloid substances; (2) mixing diatomite and 0.1mmol/LNaOH solution in proportion, drying to be used as a deacidification agent, heating at 70-75 ℃ for 60-90 min for deacidification, and filtering to remove the deacidification agent; (3) heating the deacidified crude lemon seed oil at 220-240 ℃ for 15-20 min for deodorization; (4) adding activated carbon into the deodorized crude lemon seed oil, heating at 180-185 ℃ for 50-80 min for decolorization, cooling to 50-55 ℃, and filtering to remove the activated carbon to obtain the lemon seed oil.

Technical Field

The invention relates to the technical field of lemon processing, and particularly relates to a production method of lemon seed oil.

Background

The lemon fruit has bright color and strong sour taste, is rich in various vitamins and mineral elements and antioxidant substances such as limonin, flavonoid, phenolic acid and the like, and has higher nutritional value and health care function. In recent years, the lemon industry in China has a tendency of accelerating development, and the production and marketing are extremely vigorous. In the fine and further processing process of the lemons, a large amount of lemon seeds and cutting fragments thereof are easy to generate, the products are not commodity, and the processing method is direct discarding or burning, so that great resource waste is caused and the environment is polluted.

Recent researches show that the lemon seeds are rich in oil (the content is close to 20 percent), the content proportion of unsaturated fatty acid is close to 70 percent, and the oil content and the unsaturation degree of the lemon seeds are close to those of oil crops such as corn, soybean, rapeseed, sunflower seeds, peanut and the like; however, in the lemon seed oil, the total content of linolenic acid and linoleic acid which are essential fatty acids for human bodies is close to 40 percent and is obviously higher than the level of edible oil sold in the market. Therefore, the lemon seed oil has higher health care function.

At present, because the lemon seeds contain a plurality of limonin substances, cyanogenic glycosides, tannins, flavonoids and the like, the prepared grease has extremely strong bitter taste and poor crowd acceptance; in addition, the existing squeezing method cannot thoroughly squeeze the lemon seed oil, or the grease of the lemon seeds is greatly lost and wasted in the squeezing process.

Disclosure of Invention

The invention aims to provide a production method of lemon seed oil, which can reduce the bitter taste of the lemon seed oil as much as possible in the production process, thoroughly squeeze the lemon seeds as much as possible, reduce the grease loss of the lemon seeds as much as possible and reduce waste.

The embodiment of the invention is realized by the following technical scheme:

a production method of lemon seed oil comprises the following steps:

s1: taking out lemon seeds from lemon fruits and carrying out pretreatment;

s2: squeezing the pretreated lemon seeds at low temperature to obtain first coarse lemon seed oil and lemon seed pieces;

s3: crushing and extracting the lemon seeds to obtain second crude lemon seed oil;

s4: mixing the first coarse lemon seed oil and the second coarse lemon seed oil into coarse lemon seed oil, and performing debittering treatment by using a composite debittering adsorbing material;

s5: and (3) carrying out degumming, deacidification, decolorization and deodorization on the crude lemon seed oil in sequence after debittering treatment, thus obtaining the lemon seed oil.

Further, the pretreatment of the lemon seeds in the step S1 includes washing, acid hydrolysis, enzymatic hydrolysis, and drying in sequence.

Further, in the step S2, the oil is pressed for 20-30 min at a low temperature of 10-20 ℃ and a bore pressure of 20-30 MPa.

Further, in the step S3, the lemon seeds are crushed and extracted for 60-70 min at 80-90 ℃ by using an extracting agent, and the extraction is carried out for 2-3 times.

Further, the mass ratio of the volume of the extracting agent to the mass of the broken lemon seeds in the step S3 is 8-10: 1.

Further, the extracting agent is petroleum ether, ethanol, acetone or toluene.

Further, the composite debitterizing adsorption material in the step S4 comprises the following components in parts by mass: 30-45 parts of S861 resin, 20-35 parts of XAD-16 ion exchange resin, 15-18 parts of HZ resin and 8-12 parts of LX-900 macroporous adsorption resin.

Further, the volume ratio of the mass of the composite debitterizing adsorption material in the step S4 to the crude lemon seed oil is 0.8-1.2: 1.

Further, in the step S4, the composite debitterizing adsorption material is added into the crude lemon seed oil, the mixture is oscillated for 20-24 hours at room temperature and 100-120 r/min until the adsorption is balanced, and then the composite debitterizing adsorption material is filtered out.

Further, in the step S5: (1) adding phosphoric acid into the crude lemon seed oil, stirring for 30min at 60-65 ℃, and then centrifuging at 800-1000 rpm/min to separate colloid substances; (2) mixing diatomite and 0.1mmol/LNaOH solution in proportion, drying to be used as a deacidification agent, heating at 70-75 ℃ for 60-90 min for deacidification, and filtering to remove the deacidification agent; (3) heating the deacidified crude lemon seed oil at 220-240 ℃ for 15-20 min for deodorization; (4) adding activated carbon into the deodorized crude lemon seed oil, heating at 180-185 ℃ for 50-80 min for decolorization, cooling to 50-55 ℃, and filtering to remove the activated carbon to obtain the lemon seed oil.

The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:

1. the invention extracts the whole seeds of the lemon seeds at low temperature and extracts the crushed lemon seeds, thereby more thoroughly extracting the lemon seeds and reducing the grease loss of the lemon seeds in the extracting process.

2. The composite debitterizing adsorption material is used for debitterizing, so that naringin and limonin in the lemon seed oil can be removed to a greater extent, the content of the naringin and the limonin in a finished product of the lemon seed oil is low, the bitter taste of the lemon seed oil is reduced, and the crowd acceptance is improved.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

The following specifically describes a method for producing lemon seed oil provided by the embodiment of the invention.

Example 1

The embodiment provides a production method of lemon seed oil, which comprises the following steps:

s1: taking out lemon seeds from lemon fruit, and washing with distilled water for 2 times; performing acidolysis for 50min at 35 ℃ by using an oxalic acid solution with the volume concentration of 6%; performing enzymolysis for 180min at 30 ℃ by using cellulase with the mass concentration of 10%; finally drying at 100 ℃;

s2: squeezing the pretreated lemon seeds at 10 deg.C and 30MPa for 30min to obtain first coarse lemon seed oil and crushed lemon seeds;

s3: extracting the crushed lemon seeds for 65min at 80 ℃ by adopting a petroleum ether extracting agent, wherein the mass ratio of the volume of the extracting agent to the crushed lemon seeds is 10:1, and extracting for 2 times to obtain second crude lemon seed oil;

s4: mixing the first coarse lemon seed oil and the second coarse lemon seed oil to obtain coarse lemon seed oil, adding a composite debittering adsorption material into the coarse lemon seed oil, oscillating for 24 hours at room temperature and 100r/min until adsorption balance is achieved for debittering treatment, and filtering the composite debittering adsorption material; the mass ratio of the composite debitterizing adsorption material to the crude lemon seed oil is 1.2: 1; the composite debitterizing adsorption material comprises the following components in parts by mass: 30 parts of S861 resin, 35 parts of XAD-16 ion exchange resin, 15 parts of HZ resin and 8 parts of LX-900 macroporous adsorption resin;

s5: after the debitterizing treatment of the crude lemon seed oil, the following treatments are sequentially carried out: (1) adding phosphoric acid into the crude lemon seed oil, stirring at 65 deg.C for 30min, and centrifuging at 1000rpm/min to separate colloid substance; (2) mixing diatomite and 0.12mmol/LNaOH solution in proportion, drying to obtain deacidifying agent, heating at 70 deg.C for 85min for deacidifying, and filtering to remove deacidifying agent; (3) heating the deacidified crude lemon seed oil at 240 deg.C for 20min for deodorizing; (4) adding activated carbon into deodorized crude lemon seed oil, heating at 185 deg.C for 65min for decolorizing, cooling to 55 deg.C, and filtering to remove activated carbon to obtain lemon seed oil.

Example 2

The embodiment provides a production method of lemon seed oil, which comprises the following steps:

s1: taking out lemon seeds from lemon fruit, and washing with distilled water for 3 times; performing acidolysis for 55min at 45 ℃ by using an oxalic acid solution with the volume concentration of 8%; performing enzymolysis with 12% cellulase at 40 deg.C for 200 min; finally drying at 120 ℃;

s2: squeezing the pretreated lemon seeds at 20 deg.C and 20MPa for 20min to obtain first coarse lemon seed oil and crushed lemon seeds;

s3: extracting the crushed lemon seeds for 60min at 90 ℃ by using a toluene extraction agent, wherein the volume ratio of the extraction agent to the crushed lemon seeds is 8:1, and extracting for 3 times to obtain second crude lemon seed oil;

s4: mixing the first coarse lemon seed oil and the second coarse lemon seed oil to obtain coarse lemon seed oil, adding a composite debittering adsorption material into the coarse lemon seed oil, oscillating for 20 hours at room temperature and 110r/min until adsorption balance is achieved for debittering treatment, and filtering the composite debittering adsorption material; the mass ratio of the composite debitterizing adsorption material to the crude lemon seed oil is 0.9: 1; the composite debitterizing adsorption material comprises the following components in parts by mass: 40 parts of S861 resin, 30 parts of XAD-16 ion exchange resin, 16 parts of HZ resin and 12 parts of LX-900 macroporous adsorption resin;

s5: after the debitterizing treatment of the crude lemon seed oil, the following treatments are sequentially carried out: (1) adding phosphoric acid into the crude lemon seed oil, stirring at 60 deg.C for 20min, and centrifuging at 850rpm/min to separate colloid substance; (2) mixing diatomite and 0.1mmol/LNaOH solution in proportion, drying to obtain deacidifying agent, heating at 75 deg.C for 80min for deacidifying, and filtering to remove deacidifying agent; (3) heating the deacidified crude lemon seed oil at 240 deg.C for 18min for deodorizing; (4) adding activated carbon into deodorized crude lemon seed oil, heating at 180 deg.C for 70min for decolorizing, cooling to 50 deg.C, and filtering to remove activated carbon to obtain lemon seed oil.

Example 3

The embodiment provides a production method of lemon seed oil, which comprises the following steps:

s1: taking out lemon seeds from lemon fruit, and washing with distilled water for 2 times; performing acidolysis for 55min at 40 ℃ by using an oxalic acid solution with the volume concentration of 7%; performing enzymolysis for 190min at 35 ℃ by using cellulase with the mass concentration of 11%; finally drying at 120 ℃;

s2: squeezing the pretreated lemon seeds at 15 deg.C under 25MPa for 25min to obtain first coarse lemon seed oil and lemon seed pieces;

s3: extracting the crushed lemon seeds for 60min at 90 ℃ by using an acetone extracting agent, wherein the mass ratio of the volume of the extracting agent to the crushed lemon seeds is 10:1, and extracting for 3 times to obtain second crude lemon seed oil;

s4: mixing the first coarse lemon seed oil and the second coarse lemon seed oil to obtain coarse lemon seed oil, adding a composite debittering adsorption material into the coarse lemon seed oil, oscillating for 20 hours at room temperature at 120r/min until adsorption balance is achieved for debittering treatment, and filtering the composite debittering adsorption material; the mass ratio of the composite debitterizing adsorption material to the crude lemon seed oil is 0.8: 1; the composite debitterizing adsorption material comprises the following components in parts by mass: 45 parts of S861 resin, 20 parts of XAD-16 ion exchange resin, 18 parts of HZ resin and 9 parts of LX-900 macroporous adsorption resin;

s5: after the debitterizing treatment of the crude lemon seed oil, the following treatments are sequentially carried out: (1) adding phosphoric acid into the crude lemon seed oil, stirring at 60 deg.C for 30min, and centrifuging at 900rpm/min to separate colloid substance; (2) mixing diatomite and 0.12mmol/LNaOH solution in proportion, drying to obtain deacidifying agent, heating at 75 deg.C for 70min for deacidifying, and filtering to remove deacidifying agent; (3) heating the deacidified crude lemon seed oil at 240 deg.C for 15min for deodorizing; (4) adding activated carbon into deodorized crude lemon seed oil, heating at 180 deg.C for 60min for decolorizing, cooling to 50 deg.C, and filtering to remove activated carbon to obtain lemon seed oil.

Example 4

The embodiment provides a production method of lemon seed oil, which comprises the following steps:

s1: taking out lemon seeds from lemon fruit, and washing with distilled water for 3 times; performing acidolysis for 50min at 45 ℃ by using an oxalic acid solution with the volume concentration of 6%; performing enzymolysis for 180min at 40 ℃ by using cellulase with the mass concentration of 12%; finally drying at 105 ℃;

s2: squeezing the pretreated lemon seeds at 12 deg.C and 25MPa for 28min to obtain first coarse lemon seed oil and crushed lemon seeds;

s3: extracting the crushed lemon seeds for 70min at 80 ℃ by using an acetone extracting agent, wherein the mass ratio of the volume of the extracting agent to the crushed lemon seeds is 9:1, and extracting for 2 times to obtain second crude lemon seed oil;

s4: mixing the first coarse lemon seed oil and the second coarse lemon seed oil to obtain coarse lemon seed oil, adding a composite debittering adsorption material into the coarse lemon seed oil, oscillating for 24 hours at room temperature and 100r/min until adsorption balance is achieved for debittering treatment, and filtering the composite debittering adsorption material; the mass ratio of the composite debitterizing adsorption material to the crude lemon seed oil is 1.0: 1; the composite debitterizing adsorption material comprises the following components in parts by mass: 45 parts of S861 resin, 25 parts of XAD-16 ion exchange resin, 17 parts of HZ resin and 11 parts of LX-900 macroporous adsorption resin;

s5: after the debitterizing treatment of the crude lemon seed oil, the following treatments are sequentially carried out: (1) adding phosphoric acid into the crude lemon seed oil, stirring at 65 deg.C for 35min, and centrifuging at 1000rpm/min to separate colloidal substance; (2) mixing diatomite and 0.15mmol/LNaOH solution in proportion, drying to obtain deacidifying agent, heating at 70 deg.C for 90min for deacidifying, and filtering to remove deacidifying agent; (3) heating the deacidified crude lemon seed oil at 220 deg.C for 20min for deodorizing; (4) adding activated carbon into deodorized crude lemon seed oil, heating at 185 deg.C for 50min for decolorizing, cooling to 55 deg.C, and filtering to remove activated carbon to obtain lemon seed oil.

Example 5

The embodiment provides a production method of lemon seed oil, which comprises the following steps:

s1: taking out lemon seeds from lemon fruit, and washing with distilled water for 2 times; performing acidolysis for 60min at 40 ℃ by using an oxalic acid solution with the volume concentration of 8%; performing enzymolysis for 200min at 35 ℃ by using cellulase with the mass concentration of 11%; finally drying at 110 ℃;

s2: squeezing the pretreated lemon seeds at 16 deg.C and 20MPa for 22min to obtain first coarse lemon seed oil and crushed lemon seeds;

s3: extracting the crushed lemon seeds for 68min at 85 ℃ by adopting an ethanol extracting agent, wherein the volume ratio of the extracting agent to the crushed lemon seeds is 8:1, and extracting for 3 times to obtain second crude lemon seed oil;

s4: mixing the first coarse lemon seed oil and the second coarse lemon seed oil to obtain coarse lemon seed oil, adding a composite debittering adsorption material into the coarse lemon seed oil, oscillating for 22h at room temperature and 120r/min until adsorption balance is achieved for debittering treatment, and filtering the composite debittering adsorption material; the mass ratio of the composite debitterizing adsorption material to the crude lemon seed oil is 1.1: 1; the composite debitterizing adsorption material comprises the following components in parts by mass: 35 parts of S861 resin, 30 parts of XAD-16 ion exchange resin, 15 parts of HZ resin and 10 parts of LX-900 macroporous adsorption resin;

s5: after the debitterizing treatment of the crude lemon seed oil, the following treatments are sequentially carried out: (1) adding phosphoric acid into the crude lemon seed oil, stirring at 60 deg.C for 30min, and centrifuging at 800rpm/min to separate colloid substance; (2) mixing diatomite and 0.1mmol/LNaOH solution in proportion, drying to obtain deacidifying agent, heating at 70 deg.C for 90min for deacidifying, and filtering to remove deacidifying agent; (3) heating the deacidified crude lemon seed oil at 220 deg.C for 15min for deodorizing; (4) adding activated carbon into deodorized crude lemon seed oil, heating at 180 deg.C for 80min for decolorizing, cooling to 50 deg.C, and filtering to remove activated carbon to obtain lemon seed oil.

Comparative example

The comparative example provides a production method of lemon seed oil, which comprises the following steps:

s1: taking out lemon seeds from lemon fruit, sequentially washing with distilled water for 3 times, drying at 50 deg.C, and pulverizing;

s2: performing acidolysis on the crushed lemon seeds for 55min at 45 ℃ by using an oxalic acid solution with the volume concentration of 8%; performing enzymolysis for 200min at 40 deg.C with 12% cellulase; finally drying at 120 ℃;

s3: squeezing the pretreated lemon seeds at 50 deg.C and 10MPa for 20min to obtain crude lemon seed oil;

s4: adding the composite debitterizing liquid into the crude lemon seed oil, and oscillating for 20h at 50 ℃ and 60r/min to perform debitterizing treatment; the volume ratio of the composite debitterizing liquid to the crude lemon seed oil is 0.6: 1; the composite debitterizing liquid comprises the following components in parts by mass: 20 parts of rhamnosase, 36 parts of naringinase, 16 parts of glucosidase and 12 parts of papain;

s5: after the debitterizing treatment of the crude lemon seed oil, the following treatments are sequentially carried out: (1) adding phosphoric acid into the crude lemon seed oil, stirring at 60 deg.C for 20min, and centrifuging at 850rpm/min to separate colloid substance; (2) mixing diatomite and 0.1mmol/LNaOH solution in proportion, drying to obtain deacidifying agent, heating at 75 deg.C for 80min for deacidifying, and filtering to remove deacidifying agent; (3) heating the deacidified crude lemon seed oil at 240 deg.C for 18min for deodorizing; (4) adding activated carbon into deodorized crude lemon seed oil, heating at 180 deg.C for 70min for decolorizing, cooling to 50 deg.C, and filtering to remove activated carbon to obtain lemon seed oil.

Experimental example 1

Taking samples with the same volume of the crude lemon seed oil and the finished lemon seed oil produced in the examples 1-5 and the comparative examples, diluting and purifying, detecting the content of naringin and limonin by using an HPLC method, calculating the removal rate, detecting each group of samples for three times in parallel, and calculating the average removal rate; the results are shown in Table 1.

N＝(C₀-C_{Suction device})/C₀*100％

N-removal,%;

C₀-mass concentration of naringin, limonin in the crude lemon seed oil, μ g/g;

C_{suction device}The mass concentration of naringin and limonin in the finished lemon seed oil product is mu g/g.

TABLE 1 removal rates of naringin and limonin

Sample (I)	Naringin removal rate%	The removal rate of limonin%
			Example 1	92.5	84.2
Example 2	93.1	83.8
			Example 3	92.8	84.1
Example 4	92.3	84.2
			Example 5	92.6	83.8
Comparative example	80.2	75.6

As can be seen from the table 1, the removal rate of naringin and limonin in the production process is high, so that the content of naringin and limonin in the finished lemon seed oil is low, the bitter taste of the lemon seed oil is reduced, and the crowd acceptance is improved.

Experimental example 2

Taking samples with the same volume of the finished lemon seed oil products produced in the examples 1-5 and the comparative example, determining the contents of oleic acid, linoleic acid and linolenic acid according to the GB/T17377-1998 method, and determining V according to the GB/T5009.82-2003 method_EThe results are shown in Table 2.

TABLE 2 lemon seed oil nutrient content

Sample (I)	Oleic acid (%)	Linoleic acid (%)	Linolenic acid (%)	VE(μg/g)
					Example 1	31.5	33.7	8.60	160
Example 2	31.3	33.5	8.64	161
					Example 3	31.5	33.7	8.65	162
Example 4	31.6	33.5	8.62	161
					Example 5	31.4	33.6	8.64	160
Comparative example	30.2	31.8	7.82	148

As can be seen from Table 2, the lemon seed oil produced by the method of the present invention contains oleic acid, linoleic acid, linolenic acid and V_EThe content of the lemon seed oil is improved, the lemon seed oil is more thoroughly extracted by the extraction method, and the grease loss of the lemon seeds is reduced in the extraction process.

In conclusion, the production method of the lemon seed oil provided by the application can reduce the bitter taste of the lemon seed oil as much as possible in the production process, thoroughly squeeze the lemon seeds as much as possible, and reduce the grease loss of the lemon seeds as much as possible.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.