阅读说明：本技术 花椒油及其制备方法、用途及使用该花椒油的物料 (Zanthoxylum oil, preparation method and application thereof, and material using zanthoxylum oil ) 是由 任慧璟 周盛敏 姜元荣 于 2021-01-28 设计创作，主要内容包括：本发明提供了一种花椒油及其制备方法、用途及使用该花椒油的物料。所述花椒油中,花椒酰胺的含量为9mg/g以上；以所述花椒酰胺的总质量为100％计,羟基-ε-山椒素与羟基-β-山椒素的含量之和为9.0～13.0％。本发明的花椒油入口后没有明显的苦涩感,并且具有强烈的麻感,且入口后麻感强烈但不会令人感到不适。本发明的花椒油的制备方法以及降低花椒油苦味强度的方法简单易行,原料易于获取,对设备要求低,适合大批量生产。(The invention provides zanthoxylum oil, a preparation method and application thereof, and a material using the zanthoxylum oil. The content of the Zanthoxylum oil is more than 9 mg/g; the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is 9.0-13.0% based on the total mass of the sanshool as 100%. The zanthoxylum oil disclosed by the invention has no obvious bitter and astringent feeling after being taken, has strong numb feeling, and is strong but not uncomfortable after being taken. The preparation method of the zanthoxylum oil and the method for reducing the bitter intensity of the zanthoxylum oil are simple and easy to implement, the raw materials are easy to obtain, the requirement on equipment is low, and the zanthoxylum oil is suitable for mass production.)

1. The zanthoxylum oil is characterized in that the content of zanthoxylum amide in the zanthoxylum oil is more than 9 mg/g; and the number of the first and second electrodes,

the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is 9.0 to 13.0 percent based on the total mass of the sanshool as 100 percent.

2. The Zanthoxylum oil according to claim 1, wherein the Zanthoxylum oil is derived from dried Zanthoxylum; in the dry pepper, the mass fraction of the nonvolatile ether extract is more than 8%.

3. The zanthoxylum oil according to claim 1 or 2, characterized in that the zanthoxylum oil further comprises zanthoxylum aromatic essential oil; wherein the addition amount of the pepper aromatic essential oil is less than 1.5g/100 g.

4. The zanthoxylum oil according to claim 3, characterized in that the content of linalool in the zanthoxylum aromatic essential oil is 50.00-60.00% based on 100% of the total mass of the zanthoxylum aromatic essential oil.

5. A method for reducing the bitterness intensity of zanthoxylum oil, which is characterized by comprising the following steps: adjusting the content of the zanthoxylum piperitum amide to be more than 9 mg/g; and the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is adjusted to be 9.0 to 13.0 percent based on the total mass of the sanshool as 100 percent.

6. The method according to claim 5, characterized in that it comprises at least one of the following features:

1) the zanthoxylum oil is derived from dried zanthoxylum; in the dry pepper, the mass fraction of the non-volatile ether extract is more than 8%;

2) the zanthoxylum oil also contains zanthoxylum aromatic essential oil; wherein the addition amount of the pepper aromatic essential oil is less than 1.5g/100 g;

3) the content of linalool in the pepper aromatic essential oil is 50.00-60.00% by taking the total mass of the pepper aromatic essential oil as 100%.

7. A method for preparing zanthoxylum oil according to any one of claims 1 to 4, which comprises mixing zanthoxylum raw material with refined vegetable oil, preparing zanthoxylum crude oil at a temperature of not more than 100 ℃, and then diluting the zanthoxylum crude oil to obtain zanthoxylum oil.

8. The method of preparing zanthoxylum oil according to claim 7, further comprising the step of adding zanthoxylum aromatic essential oil to the zanthoxylum oil.

9. Use of zanthoxylum oil according to any of claims 1 to 4 or zanthoxylum oil obtained by the preparation method according to claim 7 or 8 for cooking or food addition.

10. A material characterized in that it comprises zanthoxylum oil according to any of claims 1 to 4 or zanthoxylum oil obtained by the preparation process according to claim 7 or 8.

Technical Field

The invention relates to zanthoxylum oil, a preparation method and application thereof, and a material using the zanthoxylum oil; in particular to edible zanthoxylum oil without obvious bitter and astringent taste, a preparation method and application thereof and a material using the zanthoxylum oil, belonging to the field of processing and application of seasoning oil.

Background

The zanthoxylum oil is a traditional special condiment in Chongqing areas. With the development of times, the dietary structure of local and even national people is changed, the demand on the quality of the zanthoxylum oil is gradually increased, and the zanthoxylum oil has the same tendency as basic seasonings such as salt and monosodium glutamate. Dishes in the Chongqing areas mainly have heavy fragrance and strong mouthfeel, and usually rapeseed oil is used as main edible oil, wherein most of main pepper oil products usually use fresh peppers as raw materials in production, the rapeseed oil is heated to become cooked rapeseed oil and then is used as base oil, and the edible pepper oil is obtained by putting the raw materials such as the peppers into the rapeseed oil, heating and then leaching.

At present, according to the feedback of chefs in part of restaurant, after most zanthoxylum oil products are cooked and applied, dishes of the zanthoxylum oil products have the phenomenon of bitter taste after entering the mouth, and the reason for the phenomenon is very complicated; the bitter substances in the pepper are not detailed and comprehensive as the spicy substances, the volatile substances and the like, people generally know and learn directly according to senses and senses, how to generate and specify the ingredients are not clear, and the bitter substances are not main ingredients, but trace ingredients and the mutual synergistic effect of the trace ingredients; at present, few research reports on the analysis of specific reasons for bitter taste generation in pepper oil seasoning oil or effective debittering methods and the like exist.

In the prior art, the conventional debittering process of grease comprises the following steps: physical adsorption, refining and the like. However, after the zanthoxylum oil is treated by the method, the bitter taste reducing effect is poor, and even the original characteristic flavor, the numb feeling and the like of the zanthoxylum oil are seriously lost. Therefore, the bitter taste in the zanthoxylum oil is removed or reduced on the premise of not influencing indexes related to the zanthoxylum oil quality, such as flavor, numb feeling and the like of the zanthoxylum oil, and the zanthoxylum oil has great significance for the zanthoxylum oil industry.

Citation 1 discloses a zanthoxylum schinifolium seasoning oil composition relating to a ready-to-use seasoning oil composition comprising zanthoxylum schinifolium oil extract, oleoresin and a vegetable oil, preferably selected from soybean oil, palm oil, corn oil or sunflower oil. However, it cannot ensure the strong tingling taste of zanthoxylum oil and reduce the bitter taste.

Citation 2 discloses a method for debitterizing zanthoxylum oil resin, which is specifically to take zanthoxylum oil resin, firstly carry out enzymolysis to destroy bitter substances, then add a bitter inhibitor, and finally carry out centrifugal separation under the condition of low temperature and remove the bitter substances, thus obtaining the zanthoxylum oil resin with low bitter substance content. However, the method can affect the original taste of oleum Zanthoxyli Bungeani due to change of bitter substances.

Citation 3 discloses a method for producing a hydroxysanshool-containing extract, specifically a method for efficiently producing a hydroxysanshool-containing extract containing hydroxysanshool at a concentration of at least 70 mass% by extracting an extract oil of zanthoxylum with an aqueous ethanol solution having an ethanol concentration of 35 to 65 mass%. Although the expression form of paralysis, astringency and bitterness is shown when the beta-hydroxy sanshool is disclosed, namely only the source of bitter substances of the zanthoxylum bungeanum is disclosed, and the hydroxy-beta sanshool is contained, a method for ensuring strong tingling taste of the zanthoxylum bungeanum and reducing the bitter taste is not provided.

Therefore, the research on the zanthoxylum oil which ensures the strong numb taste and simultaneously reduces the bitter taste becomes a technical problem to be solved urgently.

Citations

Cited document 1: CN105188389A

Cited document 2: CN110338233A

Cited document 3: CN103099163A

Disclosure of Invention

Problems to be solved by the invention

In view of the technical problems in the prior art, the invention aims to provide zanthoxylum oil which has no obvious bitter after being taken in the mouth and still has strong numbing feeling.

Furthermore, the invention also provides a preparation method of the zanthoxylum oil, which can take dry zanthoxylum as a raw material, the raw material is easy to obtain, the instability of fresh zanthoxylum caused by seasonal change can be avoided, and the preparation method is simple and easy to implement and is suitable for mass production.

Furthermore, the invention also provides a method for reducing the bitter intensity of the zanthoxylum oil, which is simple and easy to implement, easy to obtain raw materials, suitable for mass production and low in equipment requirement.

Further, the invention also provides application of the zanthoxylum oil in cooking or food addition.

Means for solving the problems

[1] The zanthoxylum oil is characterized in that the content of zanthoxylum amide in the zanthoxylum oil is more than 9 mg/g; and the number of the first and second electrodes,

the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is 9.0 to 13.0 percent based on the total mass of the sanshool as 100 percent.

[2] The zanthoxylum oil according to the above [1], wherein the zanthoxylum oil is derived from dried zanthoxylum; in the dry pepper, the mass fraction of the nonvolatile ether extract is more than 8%.

[3] The zanthoxylum oil according to the item [1] or the item [2], wherein the zanthoxylum oil further comprises zanthoxylum aromatic essential oil; wherein the addition amount of the pepper aromatic essential oil is less than 1.5g/100 g.

[4] The zanthoxylum oil according to the item [3], wherein the content of linalool in the zanthoxylum aromatic essential oil is 50.00-60.00% based on 100% of the total mass of the zanthoxylum aromatic essential oil.

[5] The method for reducing the bitterness intensity of the zanthoxylum oil comprises the following steps: adjusting the content of the zanthoxylum piperitum amide to be more than 9 mg/g; and the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is adjusted to be 9.0 to 13.0 percent based on the total mass of the sanshool as 100 percent.

[6] The method according to [5] above, wherein the method comprises at least one of the following features:

1) the zanthoxylum oil is derived from dried zanthoxylum; in the dry pepper, the mass fraction of the non-volatile ether extract is more than 8%;

2) the zanthoxylum oil also contains zanthoxylum aromatic essential oil; wherein the addition amount of the pepper aromatic essential oil is less than 1.5g/100 g;

3) the content of linalool in the pepper aromatic essential oil is 50.00-60.00% by taking the total mass of the pepper aromatic essential oil as 100%.

[7] The preparation method of the zanthoxylum oil according to any one of the items [1] to [4], which comprises the steps of mixing a zanthoxylum raw material and refined vegetable oil, preparing zanthoxylum crude oil at the temperature of not more than 100 ℃, and then diluting the zanthoxylum crude oil to obtain the zanthoxylum oil.

[8] The preparation method of zanthoxylum oil according to the above [7], wherein the preparation method further comprises a step of adding zanthoxylum aromatic essential oil in the zanthoxylum oil.

[9] And the use of the zanthoxylum oil according to any one of the items [1] to [4] or the zanthoxylum oil obtained by the preparation method according to the item [7] or the item [8] for cooking or food addition.

[10] A material comprising the Zanthoxylum oil according to any one of the above [1] to [4] or the Zanthoxylum oil obtained by the production method according to the above [7] or [8 ].

ADVANTAGEOUS EFFECTS OF INVENTION

The zanthoxylum oil has no obvious bitter after entering the mouth and has strong numb feeling; the pricklyash peel oil has strong numbing feeling after being taken in mouth but does not cause discomfort.

The preparation method of the zanthoxylum oil and the method for reducing the bitter intensity of the zanthoxylum oil are simple and easy to implement, the raw materials are easy to obtain, the requirement on equipment is low, and the zanthoxylum oil is suitable for mass production.

Detailed Description

The present invention will be described in detail below. The technical features described below are explained based on typical embodiments and specific examples of the present invention, but the present invention is not limited to these embodiments and specific examples.

It should be noted that:

in the present specification, the numerical range represented by "numerical value a to numerical value B" means a range including the end point numerical value A, B.

In the present specification, the term "substantially does not have/includes" means that some operation is not actually performed so as not to actually cause an operation object to have some characteristic during the process of performing a certain method or step or that the above description means that the operation object is below the detection limit of a detector for a certain substance.

In the present specification, "%" means weight percent unless otherwise specified.

In the present specification, the meaning of "may" includes both the meaning of performing a certain process and the meaning of not performing a certain process.

In this specification, "optional" or "optionally" means that the subsequently described event or circumstance may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

In the present specification, reference to "some particular/preferred embodiments," "other particular/preferred embodiments," "embodiments," and the like, means that a particular element (e.g., feature, structure, property, and/or characteristic) described in connection with the embodiment is included in at least one embodiment described herein, and may or may not be present in other embodiments. In addition, it is to be understood that the described elements may be combined in any suitable manner in the various embodiments.

In the present specification, the meaning of "room temperature" and "normal temperature" is 10 to 40 ℃.

<First aspect>

The first aspect of the invention provides zanthoxylum oil, wherein the content of zanthoxylum amide in the zanthoxylum oil is more than 9 mg/g; specifically, in the invention, the content of the zanthoxylum amide can be 9mg/g, 10mg/g, 11mg/g, 12mg/g, 13mg/g, 14mg/g, 15mg/g, 16mg/g, 18mg/g, 19mg/g, 20mg/g, 21mg/g and the like, preferably, the content of the zanthoxylum amide can be 12.0-17.0 mg/g;

the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is 9.0 to 13.0 percent based on the total mass of the sanshool amide as 100 percent, and concretely, the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool can be 9.5 percent, 10 percent, 10.5 percent, 11 percent, 11.5 percent, 12 percent, 12.5 percent and the like.

In the present invention, when the content of zanthoxylum amide is 9mg/g or more and the sum of the contents of hydroxy-epsilon-sanshool and hydroxy-beta-sanshool is 9.0 to 13.0% based on 100% by mass of the total zanthoxylum amide, the bitterness intensity can be reduced and the tingling intensity is still excellent.

Zanthoxylum oil

In order to obtain the zanthoxylum oil with proper content of the zanthoxylum amide, the invention has certain requirements on the raw materials of the zanthoxylum oil. Particularly, the dry pepper is preferably used as the raw material, and the raw material can be obtained all year round and produced, so that the instability of the fresh pepper caused by seasonal variation can be avoided. The dried pepper of the present invention can be purchased from the market. In the invention, all indexes of the dry pepper raw material of the zanthoxylum oil meet the requirements of the first-grade dry pepper in GBT 30391-2013. In order to obtain the zanthoxylum oil with strong numbing taste and reduced bitter taste, the mass fraction of the nonvolatile ether extract in the dry zanthoxylum is more than 8%, and specifically, the mass fraction of the nonvolatile ether extract can be 9%, 10%, 12%, 14%, 16%, 18%, 20%, 25%, 30% and the like. Preferably, in the dry pepper, the mass fraction of the nonvolatile ether extract can be 8-20%.

In some specific embodiments, the content of Zanthoxylum bungeanum amide in the dried peppers can be 40.0mg/g to 50.0mg/g, for example: 41.0mg/g, 42.0mg/g, 43.0mg/g, 44.0mg/g, 45.0mg/g, 46.0mg/g, 47.0mg/g, 48.0mg/g, 49.0mg/g, and the like. The use of the dry pepper with the content of the zanthoxylum amide of 40.0 mg/g-50.0 mg/g is beneficial to preparing the zanthoxylum oil with the proper content of the zanthoxylum amide.

The preparation method of the zanthoxylum oil can be prepared by the conventional preparation method in the field. For example, the zanthoxylum oil of the present invention can be prepared by a method of combined extraction of water and oil; can be prepared by oil extraction, can also be prepared by low-polarity organic solvent extraction, can also be prepared by a combination of water and an organic solvent, or can be prepared by a supercritical carbon dioxide extraction method.

In some specific embodiments, the zanthoxylum oil of the present invention may be prepared by oil extraction. Can be prepared by using dry pepper and refined vegetable oil as raw materials through hot processing and boiling. Specifically, dried natural-dried pepper can be used as a raw material, and the raw material is screened according to the content of volatile essential oil; crushing the screened raw materials and refined vegetable oil together, uniformly mixing, and preparing to obtain crude pepper oil under the condition that the highest temperature is not more than 100 ℃; and then diluting the dry pepper crude oil by using refined vegetable oil according to a certain proportion to obtain the dry pepper oil.

Further, heating the dry pepper and the refined vegetable oil together from normal temperature to 95-100 ℃, for example: 96 ℃, 97 ℃, 98 ℃, 99 ℃ and the like; the retention time is 30-90min, such as 40min, 50min, 60min, 70min, 80min, etc.; the mass ratio of the dry pepper to the refined vegetable oil can be 1: 5-10, for example: 1:6, 1:7, 1:8, 1:9, etc. Filtering, centrifuging and standing after heating to obtain the zanthoxylum oil.

The present invention is not particularly limited to refined vegetable oils, and may be some refined vegetable oils commonly used in the art. The refining comprises at least one step selected from the group consisting of filtering, degumming, dewaxing, deacidification, decolorization, deodorization, degreasing, transesterification, hydrogenation. Further, the refining may also include the step of treating the vegetable oil with an oxidizing agent, an adsorbent, a reducing agent, an acidic and/or a basic agent. Preferably, the preparation can be carried out by selecting dry pepper and refined rapeseed oil. Specifically, the dry pepper and the refined rapeseed oil are heated to 95-100 ℃ from normal temperature, for example: 96 ℃, 97 ℃, 98 ℃, 99 ℃ and the like; the retention time is 30-90min, such as 40min, 50min, 60min, 70min, 80min, etc.; the mass ratio of the dry pepper to the refined rapeseed oil can be 1: 5-10, for example: 1:6, 1:7, 1:8, 1:9, etc. Filtering, centrifuging and standing after heating to obtain the zanthoxylum oil.

In the invention, the highest temperature in the whole preparation process of the zanthoxylum oil is not more than 100 ℃, compared with the high-temperature heating of 180-220 ℃ in the traditional process, the zanthoxylum oil has weak cooked fragrance, and the problem of quality reduction caused by oxidation, loss of beneficial substances and the like of the zanthoxylum oil is avoided.

Further, before the preparation, the dried pepper needs to be pulverized, and specifically, the dried pepper can be pulverized by a pulverizer to pass through a 20-30-mesh sieve and then prepared.

Standard article

In order to obtain the content of the Zanthoxylum bungeanum amide of more than 9 mg/g; and the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is 9.0-13.0% of the zanthoxylum oil calculated by taking the total mass of the zanthoxylum amide as 100%, and the invention can be added with feasible standards such as a hydroxy-epsilon-sanshool standard substance and/or a hydroxy-beta-sanshool standard substance.

In the present invention, the hydroxy-epsilon-sanshool standard substance and the hydroxy-beta-sanshool standard substance are those having a purity of 98% or more as measured by HPLC.

In some specific embodiments, the content of the hydroxy-epsilon-sanshool standard substance is less than 110.0mg/100g, preferably 10.0-110 mg/100g, calculated by 100g of zanthoxylum oil; namely, the content of the hydroxy-epsilon-sanshool standard substance in every 100g of zanthoxylum oil is less than 110.0mg, preferably 10.0-110 mg. Specifically, in the present invention, the content of the hydroxy-epsilon-sanshool standard substance may be: 20mg/100g, 30mg/100g, 40mg/100g, 50mg/100g, 60mg/100g, 70mg/100g, 80mg/100g, 90mg/100g, 100mg/100g, etc.; the content of the hydroxy-beta-sanshool standard substance is less than 35.0mg/100g, preferably 4.0-35.0 g/100g, namely, the content of the hydroxy-beta-sanshool standard substance is less than 35.0mg, preferably 4.0-35.0 g in every 100g of pepper oil. Specifically, in the present invention, the content of the hydroxy- β -sanshool standard may be: 5mg/100g, 10mg/100g, 15mg/100g, 20mg/100g, 25mg/100g, 30mg/100g, 32mg/100g, and the like.

In the invention, when the content of the hydroxy-epsilon-sanshool standard substance is less than 110.0mg/100g and the content of the hydroxy-beta-sanshool standard substance is less than 35.0mg/100g, the zanthoxylum oil with the content of the zanthoxylum amide of more than 9mg/g and the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is 9.0-13.0 percent based on 100 percent of the total mass of the zanthoxylum amide can be further obtained, so that the bitter intensity of the zanthoxylum oil is lower and the tingling feeling is still strong.

Chinese prickly ash fragrant essential oil

According to the invention, the zanthoxylum oil essential oil is added into the zanthoxylum oil, so that the mellow degree of the zanthoxylum oil can be greatly improved, the flavor preference of the zanthoxylum oil is improved, and the zanthoxylum oil has strong and strong zanthoxylum characteristic aroma (green, numb and the like). The pepper aromatic essential oil can be obtained by purchasing or preparing.

In some specific embodiments, the amount of the zanthoxylum aromatic essential oil added is 1.5g/100g below based on 100g zanthoxylum oil, namely: the addition amount of the zanthoxylum oil is less than 1.5g per 100g of zanthoxylum oil. Specifically, in the invention, the content of the pepper aromatic essential oil can be 1.4g/100g, 1.3g/100g 1.2g/100g, 1.1g/100g, 1.0g/100g, 0.9g/100g, 0.8g/100g, 0.7g/100g, 0.6g/100g, 0.5g/100g, 0.4g/100g, 0.3g/100g, 0.2g/100g, 0.1g/100g and the like. When the addition amount of the zanthoxylum oil is less than 1.5g/100g, the zanthoxylum oil has excellent and mellow flavor.

Further, the pepper aromatic essential oil is a mixture of volatile flavor substances in pepper, and generally comprises the following components: linalool, cresols, limonene, myrcene and the like, so that the linalool is also called as the volatile essential oil of the pepper. Wherein, the content of linalool is 50.00-60.00% based on the total mass of the pepper aromatic essential oil as 100%; specifically, the linalool content may be 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, and the like.

The preparation method of the pepper aromatic essential oil can be prepared by the conventional preparation method in the field. For example, the pepper aromatic essential oil can be obtained by heating and volatilizing. Specifically, the dried pepper can be placed in a solvent, an essential oil collector and a distillation receiving tube are connected by using a capillary tube, then the flask is heated to be boiled, distillation is carried out, and after the temperature is cooled to the room temperature, the pepper aromatic essential oil is collected.

Preferably, the mass ratio of the pepper aromatic essential oil to the solvent is 1: 5-20, such as: 1:8, 1:10, 1:12, 1:14, 1:16, 1:18, etc.; the distillation time is 1-4 h, for example: 1.5h, 2h, 3h, 3.5h and the like.

In the present invention, the number of capillaries is not particularly limited, and may be used as needed, for example: 2-3, etc. The solvent is not particularly limited in the present invention, and may be a polar solvent commonly used in the art, such as water.

Further, before the preparation, the dried pepper needs to be pulverized, and specifically, the dried pepper can be pulverized by a pulverizer to pass through a 20-30-mesh sieve and then prepared.

Other Components

The zanthoxylum oil can be added with other components according to the needs, and on the premise of fully realizing the technical effect of the invention, the other components are not particularly limited, and particularly, in the consideration of material safety, the other additive substances refer to other types of edible oil or nutrient substances added for improving the aspects of the nutritional value, the appearance and the like of the zanthoxylum oil. The edible oil may be an animal oil.

The content of the other additive substances is generally 30% by weight or less, preferably 20% by weight or less, and more preferably 10% by weight or less of the total weight of the mixed oil, so as not to impair the achievement of the effect of the present invention. The obtained zanthoxylum oil can meet the requirements of different tastes and nutrition.

<Second aspect of the invention>

In a second aspect of the invention, there is provided a method of reducing the bitterness intensity of zanthoxylum oil, the method comprising: adjusting the content of the zanthoxylum piperitum amide to be more than 9 mg/g; and the sum of the contents of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool is adjusted to be 9.0-13.0% by taking the total mass of the sanshool as 100%.

In particular, the method comprises at least one of the following features:

1) the zanthoxylum oil is derived from dried zanthoxylum; in the dry pepper, the mass fraction of the non-volatile ether extract is more than 8%;

2) the zanthoxylum oil contains a hydroxyl-epsilon-sanshool standard substance and/or a hydroxyl-beta-sanshool standard substance; wherein the content of the first and second substances,

the content of the hydroxy-epsilon-sanshool standard substance is less than 110mg/100g, and the content of the hydroxy-beta-sanshool standard substance is less than 35.0mg/100 g;

3) the zanthoxylum oil also contains zanthoxylum aromatic essential oil; wherein the addition amount of the pepper aromatic essential oil is less than 1.5g/100 g;

4) the content of linalool in the pepper aromatic essential oil is 50.00-60.00% by taking the total mass of the pepper aromatic essential oil as 100%.

The method for reducing the bitter intensity of the zanthoxylum oil can ensure that the zanthoxylum oil still can feel strong numb after entering the mouth and has no obvious bitter after entering the mouth. The strong numb taste of the zanthoxylum oil is ensured, and the bitter taste of the zanthoxylum oil is reduced.

<Third aspect of the invention>

The third aspect of the invention provides a preparation method of zanthoxylum oil according to the first aspect of the invention, which comprises the steps of mixing a zanthoxylum raw material and refined vegetable oil, preparing zanthoxylum crude oil under the condition of not more than 100 ℃, and then diluting the zanthoxylum crude oil to obtain the zanthoxylum oil.

Further, the preparation method also comprises the step of adding the zanthoxylum oil into the zanthoxylum oil. The method for adding the zanthoxylum bungeanum essential oil into the zanthoxylum bungeanum oil is not particularly limited, and specifically, the mixing can be adding the zanthoxylum bungeanum essential oil at normal temperature.

Further, the preparation method also comprises the step of adding the hydroxyl-epsilon-sanshool standard substance and/or the hydroxyl-beta-sanshool standard substance into the zanthoxylum oil. The method for adding the hydroxy-epsilon-sanshool standard substance and/or the hydroxy-beta-sanshool standard substance into the zanthoxylum oil is not particularly limited, and specifically, the hydroxy-epsilon-sanshool standard substance and/or the hydroxy-beta-sanshool standard substance can be added at normal temperature.

Further, when the pepper aromatic essential oil and the standard substance are added, the components are uniformly mixed as much as possible. The components can be uniformly mixed by adopting a conventional mechanical mixing mode. For example: stirring, ultrasound, etc.

Compared with other similar products, the zanthoxylum oil prepared by the method has no obvious bitter and astringent feeling when the product returns after being eaten, simultaneously can provide the characteristic fragrance of the full-bodied green and red peppers, has strong numb feeling but does not feel uncomfortable after being eaten, and increases the flavor and taste of the cold or hot vegetables after being cooked.

<Fourth aspect of the invention>

A fourth aspect of the present invention provides the use of zanthoxylum oil according to the first aspect of the present invention or zanthoxylum oil prepared according to the preparation method of the third aspect of the present invention for cooking or food addition.

The zanthoxylum oil of the present invention can be applied in various cooking scenarios, and preferably can comprise a frying, stir-frying or frying process. The zanthoxylum oil can also be applied to the addition of various foods, for example, as a common seasoning, the zanthoxylum oil can be sprayed for seasoning after the dishes are taken out of a pot, or can be directly added into various foods.

In addition, the invention also provides a material which comprises the zanthoxylum oil obtained by using the zanthoxylum oil of the first aspect of the invention or the zanthoxylum oil obtained by using the preparation method according to the third aspect of the invention.

The material may be selected from food, pharmaceutical, cosmetic, etc., and may be, for example, various food or cooking aid materials. In particular, the food may be various dishes, snacks or beverages, etc., and the cooking aid may be a cooking ingredient or a food ingredient, preferably a hotpot condiment, a chinese meal cooking ingredient, a sauce packet, etc. The above ingredients may include various vegetable or meat adjuvants, and various seasonings such as Capsici fructus may be added according to different tastes. The hot pot seasoning fried by the pepper oil has proper numb feeling and obviously reduced bitter taste after entering the mouth.

Examples

Embodiments of the present invention will be described in detail below with reference to examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. 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 commercially available.

A hydroxyl-epsilon-sanshool standard substance and a hydroxyl-beta-sanshool standard substance: chengdu McSt, Inc.

Refining rapeseed oil: jiali grain oil (Sichuan) GmbH.

In the examples, the method for measuring Zanthoxylum bungeanum amide and beta and epsilon sanshools is HPLC high performance liquid chromatography, and methanol and water are used as mobile phases for measurement.

The non-volatile ether extract is the total of non-volatile substances obtained by ether extraction; the determination can be carried out according to the determination method of GB/T12729.12-2008 spice and nonvolatile ether extract of condiment.

Specifically, the determination method of the nonvolatile ether extract comprises the following steps:

extraction: and slightly plugging the filter paper cylinder containing the sample by absorbent cotton, placing the filter paper cylinder into a cord extractor, connecting a receiving bottle which is dried to a constant amount, adding anhydrous ether to 2/3 parts of the volume of the receiving bottle, heating the receiving bottle in a water bath for 3-6 mm, and extracting for 18 hours.

Weighing: taking down the receiving bottle, recovering the solvent, evaporating to dryness on a water bath when 1-2 mL of the solvent in the receiving bottle is left, heating for 1h at 110 ℃ in an oven, cooling in a dryer, weighing to be accurate to 0.001g, repeatedly heating, cooling and weighing until the mass difference obtained in two times of succession is less than 0.002g, and obtaining the content of the nonvolatile ether extract by calculation.

Preparing zanthoxylum oil: selecting primary dry pepper with the content of Zanthoxylamide of 40.0-50.0 mg/g as a raw material, crushing the raw material to 20-30 meshes by using a Chinese herbal medicine crusher, weighing 100g of the crushed raw material, placing the crushed raw material in a beaker, adding 1000g of refined rapeseed oil, heating to 95-100 ℃, preserving the temperature for 60min, then turning off a heat source, cooling to room temperature, carrying out vacuum filtration and centrifugation to obtain the Zanthoxylum oil.

Preparing the pepper aromatic essential oil: selecting first-grade dry green pepper as a raw material, crushing the raw material to 20-30 meshes by using a Chinese herbal medicine crusher, weighing 50g of the raw material, placing the raw material in a flask, adding 500mL of deionized water, adding 2-3 capillary glass tubes, linking a volatile essential oil collector and a distillation receiving tube, heating the flask to boil, slowly distilling for 2 hours, then closing a heat source, cooling to room temperature, and collecting the volatile essential oil of the pepper.

The method for testing the linalool content in the zanthoxylum bungeanum essential oil comprises the following steps: and analyzing the volatile components by adopting an SPME-GC-MS solid phase microextraction-gas chromatography-mass spectrometry method so as to obtain the linalool content.

Examples 1 to 7

As shown in table 1 below, one or two of the corresponding hydroxy-epsilon-sanshool and hydroxy-beta-sanshool are added according to the mass of the zanthoxylum oil, the mixture is stirred uniformly until the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool are dissolved, the zanthoxylum oil essential oil is added, and the mixture is continuously stirred uniformly, so as to obtain the zanthoxylum oil samples of the examples 1 to 7.

Comparative examples 1 to 5

As shown in the following table 1, one or two of corresponding hydroxy-epsilon-sanshool and hydroxy-beta-sanshool are added according to the mass of the zanthoxylum oil, the mixture is stirred uniformly until the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool are dissolved, the zanthoxylum oil essential oil is added, and the mixture is continuously stirred uniformly to obtain zanthoxylum oil samples of comparative examples 1 to 5.

TABLE 1

Effect verification

A panel of 8-10 professional sensory evaluators was set up and rated for flavor preference after smelling samples, wherein 15.0g of each sample was weighed in equal amounts in a brown scent bottle (40mL capacity) for smelling, and then each member took equal amounts of sample for tasting, rated for intensity of bitterness and tingling, and given a score range after discussion (9 cents). The scoring results are shown in table 2 below:

TABLE 2

	Intensity of bitterness	Strength of numbness	Preference for flavor
				Example 1	4.5～5.0	8.0～8.5	3.5～4.0
Example 2	1.5～2.0	6.0～6.5	3.5～4.0
				Example 3	2.0～2.5	6.5～7.0	5.5～6.0
Example 4	4.5～5.0	7.0～7.5	6.5～7.0
				Example 5	2.0～2.5	7.5～8.0	8.5～9.0
Example 6	1.0～1.5	6.5～7.0	7.0～7.5
				Example 7	1.0～1.5	6.5～7.0	8.0～8.5
Comparative example 1	1.0～1.5	1.0～1.5	2.5～3.0
				Comparative example 2	6.5～7.0	2.5～3.0	4.5～5.0
Comparative example 3	6.5～7.0	4.0～4.5	6.0～6.5
				Comparative example 4	6.5～7.0	7.0～7.5	2.5～3.0
Comparative example 5	4.5～5.0	5.0～5.5	6.0～6.5

As can be seen from Table 2, in examples 1 to 7 of the present application, when the content of Zanthoxylamide is 9mg/g or more and the sum of the contents of hydroxy- ε -sanshool and hydroxy- β -sanshool is 9.0 to 13.0%, the Zanthoxylum oil of the present invention has no significant bitterness and numbness after entering the mouth. In addition, in examples 4 to 7 of the present application, the taste of zanthoxylum oil can be further improved by adding the zanthoxylum oil essential oil, so that it has excellent flavor preference.

In comparative example 1, the content of zanthoxylum amide was only 5.42mg/g, and although the bitterness intensity was low, the tingling intensity was too small to achieve the taste of zanthoxylum oil.

In comparative example 2, the content of zanthoxylum amide was 8.9mg/g, and the sum of the contents of hydroxy-epsilon-sanshool and hydroxy-beta-sanshool was only 8.30%, which could not satisfy the requirement of decreasing the bitterness intensity, and also could not realize the taste of zanthoxylum oil.

In comparative example 3, the content of the hydroxy-epsilon-sanshool and the hydroxy-beta-sanshool was 13.60% in total by adding the excessive hydroxy-epsilon-sanshool standard substance, which was higher than the content range of the present application, the bitter taste intensity was still high, the tingling intensity was also decreased, and the taste was poor.

In comparative example 4, the sum of the contents of hydroxy-epsilon-sanshool and hydroxy-beta-sanshool was only 5.2%, and too low content resulted in too high bitterness intensity and poor mouthfeel.

In comparative example 5, the content of hydroxy-e-sanshool and hydroxy- β -sanshool added to the sample was increased to 17.50%, which is higher than the content range of the present application, and the bitter taste intensity was still high, the tingling intensity was also decreased, and the taste was poor.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the present invention shall be covered thereby. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.