WO2021184633A1

WO2021184633A1 - Composite plant extract having preservative and antibacterial functions, preparation method therefor and application thereof

Info

Publication number: WO2021184633A1
Application number: PCT/CN2020/105120
Authority: WO
Inventors: 巫世贵
Original assignee: 珠海市自然之旅生物技术有限公司
Priority date: 2020-03-18
Filing date: 2020-07-28
Publication date: 2021-09-23
Also published as: CN111328838A

Abstract

The present invention relates to the technical field of preservation. Disclosed is a composite plant extract having preservative and antibacterial functions, comprising the following components: a cinnamon extract, a clove extract, and a lemon extract. The lemon extract contains limonene. The composite plant extract can further comprise at least one of a curcuma longa extract, an orange peel extract or an illicium verum extract. The composite plant extract simultaneously contains the cinnamon extract, the clove extract, and the lemon extract, has a broad-spectrum antibacterial effect, and has a good bactericidal or inhibition effect on staphylococcus aureus, Escherichia coli, pseudomonas aeruginosa, candida albicans, aspergillus niger, and bacillus cereus. The amount of the composite plant extract added in food and daily chemicals in percentage by mass is 0.04-0.15%, the addition amount is small, and the composite plant extract also has good antibacterial and preservative effects, thereby greatly reducing the usage cost.

Description

Composite plant extract with antiseptic and antibacterial functions, and preparation method and application thereof

Technical field

The invention belongs to the field of antiseptic technology, and particularly relates to a composite plant extract with antiseptic and antibacterial functions, and a preparation method and application thereof.

Background technique

In the prior art, most of the common preservatives are chemically synthesized and biosynthesized. They have certain chronic toxic and side effects and are more limited in application. In addition, most of them only have an inhibitory effect on one or several bacteria. The antibacterial effect of the spectrum must be compounded with a variety of preservatives.

There are also natural plant bacteriostatic preservatives that can be used in food and daily chemical products (such as cosmetics) in the prior art, such as a bacteriostatic and antiseptic composition composed of plant extracts such as peony grass, tea, thyme, sage, etc. , A bacteriostatic composition composed of plant extracts such as scutellaria root, panax notoginseng root, black soybean bark, honeysuckle flower, and plant extracts of wintergreen leaves, leeks, mint leaves, monkey earrings, sophora flavescens, etc. It is composed of bacteriostatic agent, but its addition amount in food or cosmetics is very high (mass fraction is 0.5% or more). Since the cost of plant extracts is higher than that of chemically synthesized or biosynthetic preservatives, coupled with the large amount of use, the cost of use will be high, which will undoubtedly reduce the customer's willingness to buy.

Therefore, it is desired to provide a plant extract that has a broad-spectrum antibacterial effect and is added in a small amount in food or daily chemicals (such as cosmetics).

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the above-mentioned prior art. To this end, the present invention proposes a composite plant extract with antiseptic and bacteriostatic functions. The composite plant extract has a broad-spectrum bacteriostatic effect, and the addition amount in food and daily chemicals (such as cosmetics) is 0.04- 0.15% (mass fraction), the addition amount is small, and it also has a good antibacterial and antiseptic effect, which greatly reduces the use cost.

A composite plant extract with antiseptic and antibacterial functions, comprising the following components: cinnamon extract, clove extract, lemon extract.

Preferably, a compound plant extract with antiseptic and antibacterial functions, in parts by weight, includes the following components: 3.5-50 parts of cinnamon extract, 3.5-92 parts of clove extract, and 1-20 parts of lemon extract .

Preferably, the cinnamon extract is an extract of cinnamon bark.

Preferably, the cinnamon extract contains trans-cinnamaldehyde and/or trans-o-methoxycinnamaldehyde.

Preferably, the clove extract is a clove flower extract; further preferably, the clove extract is a clove bud extract and/or a clove leaf extract.

Preferably, the clove extract contains isoeugenol and/or eugenol.

Preferably, the lemon extract is lemon peel extract.

Preferably, the lemon extract contains limonene.

Preferably, the compound plant extract with antiseptic and antibacterial functions also includes turmeric extract. The turmeric extract contains curcumin and/or gingerene.

Preferably, the compound plant extract with antiseptic and antibacterial functions also includes orange peel extract. The orange peel extract contains α-pinene.

Preferably, the compound plant extract with antiseptic and antibacterial functions also includes star anise extract. The star anise extract contains anisaldehyde.

Preferably, the compound plant extract with antiseptic and antibacterial functions also contains limonene, bambooene, patchoule alcohol, baicalin, tanshinone, catechin, magnolol, carvacrol, thymol, myrcene, At least one of β-pin terpenes or carnosic acid.

Preferably, the compound plant extract contains 3-40 parts of trans-cinnamaldehyde and 3-40 parts of trans-cinnamaldehyde in parts by weight of the active ingredients (active ingredients refer to the ingredients with antiseptic and bacteriostatic effects in each plant extract). 0.1-5 parts of o-methoxycinnamaldehyde, 3-90 parts of isoeugenol, 0.1-10 parts of limonene.

Further preferably, the active ingredients of the composite plant extract, in parts by weight, comprise 3-40 parts of trans-cinnamaldehyde, 0.1-5 parts of trans-o-methoxycinnamaldehyde, and 3-90 parts of isoeugenol. Parts, eugenol 0.1-40 parts, limonene 0.1-10 parts, limonene 0.1-10 parts, gingerene 0.05-5 parts, α-pinene 0.5-5 parts, curcumin 0.5-10 parts, anisaldehyde 0.5- 20 servings.

A preparation method of a compound plant extract with antiseptic and antibacterial functions includes the following steps:

(1) Preparation of cinnamon extract: take cinnamon bark, add water, heat, steam to reflux, collect the reflux, then distill, collect the distillate, add organic solvent for extraction, and then heat to remove the organic solvent to prepare cinnamon extract Thing

(2) Preparation of clove extract: take clove, add water, distill, collect the distillate, add organic solvent for extraction, fractionate under reduced pressure, remove the organic solvent to prepare clove extract;

(3) Preparation of lemon extract: take lemon, prepare lemon extract by cold pressing method (cold pressing method is a conventional technology in this industry) or distillation method; then add the cinnamon extract prepared in step (1) and step (2) ) The prepared clove extract is stirred to prepare the composite plant extract.

Preferably, the cinnamon bark in step (1) is powdered.

Preferably, the organic solvent in step (1) is ether; further preferably, the organic solvent is ether.

Preferably, the cloves in step (2) are clove buds and/or cloves leaves.

Preferably, the organic solvent in step (2) is an ester; further preferably, the organic solvent is ethyl acetate.

Preferably, after the lemon is extracted by cold pressing in step (3), rectification is performed at 103° C. to remove impurities.

Preferably, the turmeric extract is also added during the stirring process in step (3), and the preparation method of the turmeric extract is: adding water to the turmeric, distilling, collecting the distillate, and fractionating under reduced pressure to prepare the turmeric extract.

Preferably, the orange peel extract is also added during the stirring process in step (3), and the preparation method of the orange peel extract is: taking the orange peel, adding water, distilling, and collecting the distillate to prepare the orange peel extract.

Preferably, the star anise extract is also added during the stirring process in step (3). The preparation method of the star anise extract is as follows: add water to the star anise, distill, collect the distillate, and fractionate under reduced pressure to obtain the star anise extract Things.

Preferably, in the stirring process of step (3), limonene, bambooene, patchouli alcohol, baicalin, tanshinone, catechin, magnolol, carvacrol, thymol, myrcene, β-pin terpenes or At least one of carnosic acid.

Preferably, in the stirring process of step (3), at least one of turmeric extract, orange peel extract, star anise extract, limonene, bambooene, patchouli alcohol, baicalin, tanshinone, catechin or magnolol is added A sort of.

A daily chemical product containing the compound plant extract of the present invention.

Preferably, the daily chemicals are cosmetics or bactericides.

Preferably, the cosmetic is any one of moisturizing essence, eye cream, facial cleanser, and facial mask.

A food containing the compound plant extract of the present invention.

Preferably, the food is cooked food, such as kelp shreds and mustard tuber.

Preferably, the content of the compound plant extract of the present invention in the cosmetic or food is 0.04-0.15% by mass fraction.

Compared with the prior art, the beneficial effects of the present invention are as follows:

(1) The compound plant extract of the present invention contains cinnamon extract, clove extract and lemon extract at the same time, and has a broad-spectrum antibacterial effect. , Candida albicans, Aspergillus niger, and Bacillus cereus have good bactericidal or inhibitory effects;

(2) The added amount of the compound plant extract of the present invention in food and daily chemical products (such as cosmetics) is 0.04-0.15% by mass fraction, and the added amount is small, and it also has a good antibacterial and antiseptic effect , Greatly reducing the cost of use. In addition, the compound plant extract prepared by the present invention also has anti-oxidant effects.

(3) The extraction method of the plant of the present invention has high extraction efficiency, and the prepared plant extract has a high content of active ingredients, for example, the extracted lemon extract has a high content of effective constituent limonene.

Detailed ways

In order to make the technical solutions of the present invention more clearly understood by those skilled in the art, the following embodiments are listed for description. It should be pointed out that the following embodiments do not limit the scope of protection required by the present invention.

Unless otherwise specified, the raw materials, reagents or devices used in the following examples can be obtained from conventional commercial channels, or can be obtained by existing known methods.

Example 1

(1) Preparation of cinnamon extract: Take 60Kg of powdered cinnamon bark, put it in a flask, add 160L of water, heat to 100°C, steam condensate and reflux for 10 minutes, collect the reflux liquid, cool, and then distill to collect the distillate Liquid 90L, transfer the distillate to a separatory funnel, add ether to extract twice, the amount of ether each time is 40L, discard the water layer, transfer the ether layer into a test tube, add a small amount of anhydrous sodium sulfate to dry, 20 minutes Afterwards, the extract was poured out, and the ether was heated in a water bath in a fume hood to obtain 30Kg of a cinnamon extract containing trans-cinnamaldehyde and trans-o-methoxycinnamaldehyde;

(2) Preparation of clove extract: Take 500Kg of clove buds, add 3000L of water, distill, collect 1000L of distillate, place the obtained distillate in a separatory funnel, and extract twice with ethyl acetate (each time ethyl acetate The amount of ester is 600L), the upper ethyl acetate extracts are combined, and then the ethyl acetate is removed by vacuum fractional distillation to obtain 150Kg of isoeugenol-containing clove extract;

(3) Preparation of lemon extract: Take 100Kg of lemon peel, treat the lemon peel with a cold pressing method, remove impurities, and prepare 20Kg of limonene-containing lemon extract; then add the cinnamon extract prepared in step (1) and the steps (2) The prepared clove extract was stirred, the stirring speed was 60 rpm, and the stirring time was 30 minutes, to prepare a composite plant extract; the prepared composite plant extract was 200Kg, of which trans-cinnamaldehyde was 15Kg , Trans o-methoxycinnamaldehyde 3Kg, isoeugenol 120Kg, limonene 10Kg.

Example 2

(1) Preparation of cinnamon extract: take 50Kg of powdered cinnamon bark, put it in a flask, add 160L of water, heat to 100°C, steam condensate and reflux for 10 minutes, collect the reflux liquid, cool, and then distill to collect the distillate Liquid 80L, transfer the distillate to a separatory funnel, add ether for extraction 2 times, the amount of ether each time is 40L, discard the water layer, transfer the ether layer into a test tube, add a small amount of anhydrous sodium sulfate to dry, 20 minutes Afterwards, the extract was poured out, and the ether was heated in a water bath in a fume hood to obtain 25Kg of cinnamon extract containing trans-cinnamaldehyde and trans-o-methoxycinnamaldehyde;

(2) Preparation of clove extract: take 500Kg of clove flower leaves, add 3000L of water, distill, collect 1000L of distillate, place the obtained distillate in a separatory funnel, and extract twice with ethyl acetate (each time with acetic acid The amount of ethyl ester is 600L), the upper ethyl acetate extracts are combined, and then the ethyl acetate is removed by vacuum fractional distillation to obtain 150Kg of isoeugenol-containing clove extract;

(3) Preparation of lemon extract: Take 30Kg of lemon peel, add 180L of water, and distill to obtain 10L of distillate to prepare 6Kg of limonene-containing lemon extract; then add the cinnamon extract prepared in step (1) and the steps (2) To the prepared clove extract, add the turmeric extract containing curcumin and gingerene. The preparation method of the turmeric extract is: take 50Kg of turmeric powder and add 200L of water, distill to obtain 20L of distillate, and remove impurities by fractional distillation under reduced pressure Refined to obtain 19Kg of turmeric extract, stirring, stirring at a speed of 60 rpm, stirring time of 30 minutes, to prepare a composite plant extract; the prepared composite plant extract is 200Kg, of which trans-cinnamaldehyde is 12.5Kg , Trans o-methoxycinnamaldehyde 2.5Kg, isoeugenol 120Kg, limonene 3Kg, curcumin 7.6Kg, gingerene 1.9Kg.

Example 3

(1) Preparation of cinnamon extract: take 50Kg of powdered cinnamon bark, put it in a flask, add 160L of water, heat to 100°C, steam condensate and reflux for 10 minutes, collect the reflux liquid, cool, and then distill to collect the distillate Liquid 85L, transfer the distillate to a separatory funnel, add ether to extract twice, the amount of ether each time is 40L, discard the water layer, transfer the ether layer into a test tube, add a small amount of anhydrous sodium sulfate to dry, 20 minutes Afterwards, the extract was poured out, and the ether was heated in a water bath in a fume hood to obtain 25Kg of cinnamon extract containing trans-cinnamaldehyde and trans-o-methoxycinnamaldehyde;

(3) Preparation of lemon extract: Take 30Kg of lemon peel, add 180L of water, and distill to obtain 10L of distillate to prepare 6Kg of limonene-containing lemon extract; then add the cinnamon extract prepared in step (1) and the steps (2) To the prepared clove extract, add turmeric extract, orange peel extract and star anise extract;

The preparation method of turmeric extract is: take 20Kg of turmeric powder and add 200L of water, distill to obtain 20L of distillate, and purify by vacuum fractional distillation to remove impurities to obtain 7.6Kg of plant extract containing curcumin and gingerene;

The preparation method of orange peel extract is: take 30Kg of orange peel, add 180L of water, distill, collect 15L of distillate, prepare 6Kg of orange peel extract containing α-pinene;

The preparation method of star anise extract is: take 40Kg star anise, add 200L of water, steam distillation extraction, repeat the extraction twice to collect a total of 30L of distillate, and fractionate under reduced pressure to obtain 5.4Kg of star anise extract containing anisaldehyde;

Stir, the stirring speed is 60 rpm, and the stirring time is 30 minutes to prepare a composite plant extract; the prepared composite plant extract is 200Kg, of which the trans-cinnamaldehyde is 12.5Kg, and the trans-o-methoxycinnamaldehyde is 12.5Kg. 2.5Kg, isoeugenol 120Kg, limonene 3Kg, curcumin 3Kg, gingerene 1.3Kg, α-pinene 3Kg, and anisaldehyde 4Kg.

Example 4

(1) Preparation of cinnamon extract: Take 60Kg of powdered cinnamon bark, put it in a flask, add 160L of water, heat to 100°C, steam condensate and reflux for 10 minutes, collect the reflux liquid, cool, and then distill to collect the distillate Liquid 90L, transfer the distillate to a separatory funnel, add ether for extraction 2 times, the amount of ether each time is 40L, discard the water layer, transfer the ether layer into a test tube, add a small amount of anhydrous sodium sulfate to dry, 20 minutes Afterwards, the extract was poured out, and the ether was heated in a water bath in a fume hood to obtain 30Kg of a cinnamon extract containing trans-cinnamaldehyde and trans-o-methoxycinnamaldehyde;

(3) Preparation of lemon extract: take 50Kg of lemon peel, treat the lemon peel with a cold pressing method, remove impurities, and prepare 10Kg of limonene-containing lemon extract;

(4) Preparation of patchouli extract: take 50Kg of patchouli, add 400L of water, distill, collect 40L of distillate, and distill under reduced pressure to obtain 10Kg of patchouli extract containing bambooene and patchouli alcohol, and then add The cinnamon extract prepared in step (1), the clove extract prepared in step (2), and the lemon extract prepared in step (3) were stirred at a stirring speed of 60 rpm and a stirring time of 30 minutes. A composite plant extract is obtained; the prepared composite plant extract is 200Kg, of which trans-cinnamaldehyde is 15Kg, trans-o-methoxycinnamaldehyde is 3Kg, isoeugenol is 120Kg, limonene is 5Kg, bambooene is 1Kg, and patchouli alcohol 0.3Kg.

Product effect test

1. Broad-spectrum antibacterial test

Take the composite plant extracts, sodium dehydroacetate, potassium sorbate and sodium benzoate prepared in Examples 1-3 (sodium dehydroacetate, potassium sorbate and sodium benzoate are conventional antibacterial preservatives), and test their minimal antibacterial Concentration (MIC, unit: ppm), the results are shown in Table 1.

Table 1:

It can be seen from Table 1 that the composite plant extracts prepared in Examples 1-3 of the present invention are effective against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Candida albicans, Aspergillus niger, and Bacillus cereus. The minimum inhibitory concentrations of Bacillus subtilis and Bacillus subtilis are significantly lower than the minimum inhibitory concentrations of sodium dehydroacetate, potassium sorbate and sodium benzoate, indicating that the compound plant extracts prepared in Examples 1-3 of the present invention have good antibacterial effects .

2. Toxicity test

According to the standard GB15193.3-2014, the acute rat oral toxicity classification of the substance is shown in Table 2. Table 3 shows the toxicity levels of the composite plant extract and common antibacterial preservatives prepared in Example 2 of the present invention.

Table 2:

级别level	大鼠口服半数致死量(LD50)/(mg/Kg)Rat oral median lethal dose (LD50)/(mg/Kg)
急毒Acute poison	<1<1
剧毒Highly toxic	1-501-50
中等毒Moderately toxic	51-50051-500
低毒Low toxicity	501-5000501-5000
无毒Non-toxic	>5000>5000

table 3:

It can be seen from Table 2 and Table 3 that the composite plant extract prepared in Example 2 of the present invention is a non-toxic substance, which is more safe when added to food.

3. Sensory evaluation

Take the compound plant extract prepared in Example 3, two common plant preservatives A and B on the market (preservative A mainly contains Paeonia Suffruticosa extract and Qinjiao extract, and Preservative B mainly contains Zhimu extract , Magnolia Bark Extract), sensory evaluation was conducted to evaluate the sensory scores on smell and taste (taste). The maximum score is 5. The higher the score, the higher the acceptance and the stronger the sense of pleasure. The results are shown in Table 4. .

Table 4:

It can be seen from Table 4 that the composite plant extract prepared in Example 3 of the present invention has a higher score than the two common plant preservatives A and B that are commercially available. It can be seen that the composite plant extract prepared in Example 3 of the present invention has a higher score. The compound plant extracts have better sensory evaluation.

4. Antioxidant test

Take the compound plant extracts prepared in Examples 1-4 and the commercially available common antioxidant substance rosemary extract (the main component is carnosic acid), tea polyphenols, and tert-butyl hydroquinone to test antioxidants performance. Antioxidant ability evaluation method: Under the same concentration (50ppm), test the free radical scavenging rate (%). The higher the scavenging rate, the stronger the antioxidant ability. The results are shown in Table 5.

table 5:

抗氧化剂(50ppm)Antioxidant (50ppm)	自由基清除率(％)Free radical scavenging rate (%)
实施例1Example 1	20.7620.76
实施例2Example 2	21.0821.08
实施例3Example 3	20.5520.55
实施例4Example 4	22.0422.04
迷迭香提取物(鼠尾草酸)Rosemary extract (carnosic acid)	7.857.85
茶多酚Tea polyphenols	58.2058.20
特丁基对苯二酚Tert-butyl hydroquinone	40.0540.05

It can be seen from Table 5 that the composite plant extracts prepared in Examples 1-4 of the present invention have certain antioxidant properties.

Example 5: Moisturizing essence containing the compound plant extract prepared by the present invention

According to 4 formulas, make moisturizing essence, namely moisturizing essence a, moisturizing essence b, moisturizing essence c, and moisturizing essence d. The specific formulas of each group are shown in Table 6.

Table 6:

It can be seen from Table 6 that the compound plant extract prepared by the present invention is added to the moisturizing essence, and its antiseptic effect is verified by the antiseptic challenge test. The antiseptic challenge method is to add a certain amount of microorganisms to the moisturizing essence to simulate the possible contamination in the cosmetics, and to test the amount of viable bacteria at regular intervals to judge the effectiveness of the cosmetic antiseptic system based on the increase or decrease of viable bacteria Experimental method.

The specific steps are as follows:

(1) Divide the samples (ie the 4 corresponding moisturizing essences in Table 6) into sterile small boxes under a sterile environment, and divide them into two groups, namely the bacteria group and the fungus group. After adding the bacterial solution to the mixture, the concentration of bacteria in the bacterial group is ⁷ log cfu/g (for example, 10 7 cfu/g = 7 log cfu/g), and the concentration of fungus in the fungus group is 4 log cfu/g;

(2) Weigh 5 mL of the samples respectively, put them into the sterile diluent containing 45 mL, and mix them to obtain a 10 ^-1 (that is, the volume concentration of the sample is 10%) sample homogenate;

(3) Draw 1mL 10 ^-1 sample homogenate, add 9mL sterile diluent to make 10 ^-2 sample homogenate, according to this method, perform 10-fold incremental dilution to the appropriate concentration (for each incremental dilution, change to 1 1mL tip);

(4) Pipette 1 mL of sample homogenate into a sterile plate, pour the nutrient agar medium and Bengal Tiger Red medium cooled to 46°C into the plate, and rotate the plate to make it evenly mixed;

(5) When the agar in the plate is completely solidified, mark it, invert the plate and place it in a constant temperature incubator, culture the bacteria at 37°C for 24-48h, and the fungus at 27°C for 5-7 days;

(6) Test once every 7 days, a total of 5 times for 28 days.

evaluation standard

The anti-corrosion challenge test evaluation standard is the standard in Table 7 below, and meeting this standard can be judged as passing the anti-corrosion challenge test.

Table 7: Standards

The results of the anti-corrosion challenge are shown in Table 8:

Table 8:

From Table 8 (ND means not detected), it can be seen that the moisturizing essence contains the compound plant extract prepared in Example 1 and Example 4 at a concentration of 0.06% to pass the preservative challenge. The moisturizing essence contains benzene. The oxyethanol needs to be added to 0.8% to pass the anti-corrosion challenge.

Example 6

The composite plant extracts prepared in Example 2 and Example 3 of the present invention were added to cooked kelp shreds, and the total number of colonies data during shelf life was tracked (the tracking results are shown in Table 10) to verify the composite extract prepared by the present invention Antibacterial ability in food.

The components of the four kinds of kelp silk are shown in Table 9.

Table 9:

The production process of kelp silk is:

(1) Kelp shreds blanching: the soaking water shall be based on submerging the kelp shreds, soak for 5 minutes at 85℃;

(2) Seasoning: After blanching, remove the kelp shreds, drain for 15 minutes, add salt, white sugar, monosodium glutamate, white rice vinegar, chicken powder, sesame oil, chili oil in sequence, stir well and let stand for 15 minutes until the kelp shreds taste (The composite plant extracts prepared in Example 2 and Example 3 are added in step (2));

(3) Packaging: Retort bag vacuum packaging, vacuum time 30 seconds, heat sealing time 2 seconds, cooling time 2 seconds;

(4) Sterilization process: normal pressure, constant temperature of 100°C, water bath for 20 minutes.

Table 10: Tracking results of the total number of colonies in the shelf life of kelp silk (log cfu/g)

It can be seen from Table 10 (greater than or equal to 4.5 to exceed the standard, ND means not detected), it can be seen that the kelp shreds added with the composite plant extract prepared in Example 2 and Example 3 of the present invention can ensure the microbial content within 6 weeks It does not exceed the standard and has a good anti-corrosion effect.

Claims

A composite plant extract is characterized by comprising the following components: cinnamon extract, clove extract, lemon extract.
The composite plant extract of claim 1, wherein the lemon extract contains limonene.
The composite plant extract of claim 1, wherein the composite plant extract further comprises at least one of turmeric extract, orange peel extract, or star anise extract.
The composite plant extract of claim 1, wherein the composite plant extract further contains limonene, bambooene, patchouli alcohol, baicalin, tanshinone, catechin, magnolol, carvacrol , At least one of thymol, myrcene, β-pin terpenes or carnosic acid.
The composite plant extract of claim 1, wherein the composite plant extract, its active ingredients, in parts by weight, comprise 3-40 parts of trans-cinnamaldehyde, trans-o-methoxycinnamon 0.1-5 parts of aldehyde, 3-90 parts of isoeugenol, 0.1-10 parts of limonene.
The method for preparing a composite plant extract according to any one of claims 1 to 5, characterized in that it comprises the following steps:

(1) Preparation of cinnamon extract: take cinnamon bark, add water, heat, steam to reflux, collect the reflux, then distill, collect the distillate, add organic solvent for extraction, and then heat to remove the organic solvent to prepare cinnamon extract Thing

(2) Preparation of clove extract: take clove, add water, distill, collect the distillate, add organic solvent for extraction, fractionate under reduced pressure, remove the organic solvent to prepare clove extract;

(3) Preparation of lemon extract: take lemon and prepare lemon extract by cold pressing or distillation; then add the cinnamon extract prepared in step (1) and the clove extract prepared in step (2), stir, The composite plant extract is prepared.
The preparation method according to claim 6, characterized in that, in the stirring process in step (3), turmeric extract, orange peel extract, star anise extract, limonene, bambooene, patchouli alcohol, baicalin, At least one of tanshinone, catechin, magnolol, carvacrol, thymol, myrcene, β-pine terpenes, or carnosic acid.
A daily chemical product, characterized in that the daily chemical product contains the composite plant extract according to any one of claims 1-5.
A food, characterized in that the food contains the compound plant extract according to any one of claims 1-5.
The food according to claim 9, wherein the content of the compound plant extract is 0.04-0.15% in terms of mass fraction.