阅读说明：本技术 一种沉香白茶的制备方法 (Preparation method of agilawood white tea ) 是由 牛刚 詹少波 于 2021-08-24 设计创作，主要内容包括：本发明提供一种沉香白茶的制备方法,包括如下步骤：(1)萎凋：将沉香叶摊平,加入含有小球藻的营养剂,反复进行光照萎凋和黑暗萎凋,得萎凋茶叶；(2)摇青：将萎凋茶叶切片,摇青得毛茶叶,加入酸溶液浸泡毛茶叶,用水冲洗后,摇青得初茶叶；(3)烘干：将初茶叶烘干,冷却,得成品。本发明在萎凋过程采用含有小球藻的营养剂,可迅速破坏叶片的表皮结构,加速栅栏组织的收缩速率,增进沉香叶的活性成分,进而提高沉香白茶的抗氧化能力,使茶叶的品质进一步提高。(The invention provides a preparation method of agilawood white tea, which comprises the following steps: (1) withering: spreading the agilawood leaves, adding a nutrient containing chlorella, and repeatedly carrying out illumination withering and dark withering to obtain withered tea leaves; (2) shaking green: slicing withered tea leaves, rocking to obtain raw tea leaves, adding an acid solution to soak the raw tea leaves, washing with water, and rocking to obtain primary tea leaves; (3) drying: drying the primary tea leaves, and cooling to obtain a finished product. The nutritional agent containing chlorella is adopted in the withering process, so that the epidermal structure of leaves can be rapidly destroyed, the contraction rate of fence tissues is accelerated, the active ingredients of agilawood leaves are enhanced, the antioxidant capacity of the agilawood white tea is further improved, and the quality of the tea is further improved.)

1. A preparation method of agilawood white tea is characterized by comprising the following steps: the method comprises the following steps:

(1) withering: spreading the picked agilawood leaves to a thickness of 1-2 cm, adding a nutrient containing chlorella, stirring, carrying out illumination withering, wherein the illumination intensity is 2200-2500 lux, the humidity is 60-70%, culturing at 20-25 ℃ for 14-16 h, turning the agilawood leaves for 4-6 times during the culturing period, and carrying out dark withering after illumination withering to obtain withered tea leaves;

(2) shaking green: cutting withered tea leaves into tea leaves with the width of 1-2 cm, rocking the tea leaves for the first time to obtain raw tea leaves, adding an acid solution to immerse the raw tea leaves, soaking the raw tea leaves for 20-40 s, washing the soaked raw tea leaves for 30-40 min with water, and rocking the tea leaves for the second time to obtain primary tea leaves;

(3) drying: heating to 60-70 ℃ at the speed of 2-3 ℃/min, drying the primary tea, continuously heating to 80-90 ℃, keeping for 10-15 min, and cooling to obtain a finished product.

2. The preparation method of the agilawood white tea according to claim 1, which is characterized by comprising the following steps of: the mass ratio of the nutrient containing the chlorella to the agilawood leaves is 0.05-0.07: 1.

3. the preparation method of the agilawood white tea according to claim 1, which is characterized by comprising the following steps of: the nutrient containing the chlorella comprises the following raw materials in parts by weight: 8-10 parts of sodium alginate, 3-5 parts of soybean meal, 4-6 parts of a silica gel solution with the mass concentration of 10-12%, 2-4 parts of a calcium chloride solution with the mass concentration of 70-80% and 2-4 parts of a culture containing chlorella; the culture containing the chlorella is obtained by culturing the chlorella with an inoculation amount of 70-80 g/L until the cell density is stable.

4. The preparation method of the agilawood white tea according to claim 3, which is characterized by comprising the following steps of: the preparation method of the nutrient containing chlorella comprises the following steps:

(a) adding sodium alginate, soybean meal powder and a silica gel solution with the mass concentration of 10-12% into water, stirring, heating in a water bath at 40-50 ℃ for 20-30 min, and cooling to obtain a gel solution;

(b) and adding a calcium chloride solution with the mass concentration of 70-80% into the gel solution, stirring, adding a culture containing chlorella, and culturing at 23-27 ℃ for 40-50 min to obtain the nutrient containing chlorella.

5. The preparation method of the agilawood white tea according to claim 1, which is characterized by comprising the following steps of: in the step (1), the agilawood leaves are turned over during the culture period, oxygen is introduced while the agilawood leaves are turned over every time, and the ventilation time is 20-30 min; and the dark withering is carried out by turning to a dark ventilation place and culturing for 8-10 h at 20-25 ℃.

6. The preparation method of the agilawood white tea according to claim 1, which is characterized by comprising the following steps of: in the step (1), the agilawood leaves further comprise repeated illumination withering and dark withering, the dark withering is carried out after the illumination withering for 1 withering period, and the agilawood leaves are subjected to 2-3 withering periods to obtain withered tea leaves.

7. The preparation method of the agilawood white tea according to claim 1, which is characterized by comprising the following steps of: in the step (2), the first green shaking is carried out for 15-20 min at a speed of 50-55 r/min; the second shaking is carried out at a speed of 70-80 r/min for 25-30 min.

8. The preparation method of the agilawood white tea according to claim 1, which is characterized by comprising the following steps of: in the step (2), the acid solution is a citric acid solution.

9. The preparation method of the agilawood white tea according to claim 8, which is characterized by comprising the following steps: in the step (2), the mass concentration of the citric acid solution is 40-50%.

10. The agilawood white tea prepared by the preparation method of the agilawood white tea according to any one of claims 1-9.

Technical Field

The invention relates to the field of white tea processing, in particular to a preparation method of agilawood white tea.

Background

Lignum Aquilariae Resinatum, a kind of tree of Aquilaria of Thymelaeaceae, the resin accumulated after old stem injury is commonly called lignum Aquilariae Resinatum (Lignaloo), can be used as perfume raw material, and is a specific medicine for treating gastropathy; the bark fiber is flexible, white and fine, and can be used as high-grade paper raw material and artificial cotton. The white tea belongs to micro-fermented tea, is one of six Chinese teas, and is mainly formed by sun-drying or drying and then processing. The basic process comprises the operations of withering, baking, sorting or annealing and the like, and the operation procedures are mild and gentle and do not damage the activity of enzyme, so that the white tea has complete appearance, light and elegant taste and smell. However, the agilawood leaves are used for preparing the agilawood white tea by adopting a white tea preparation process, and the withering process at a certain temperature, humidity and time cannot fully release various active ingredients in the agilawood leaves, so that the prepared agilawood white tea has insufficient aroma and low tea quality, and meanwhile, the agilawood white tea is easy to mildew in the storage process, and the quality of the agilawood white tea is further reduced.

Disclosure of Invention

Therefore, the invention aims to provide a preparation method of agilawood white tea, and the preparation method is used for solving the problems.

The technical scheme of the invention is realized as follows:

a preparation method of agilawood white tea comprises the following steps:

(1) withering: spreading the picked agilawood leaves to a thickness of 1-2 cm, adding a nutrient containing chlorella, stirring, carrying out illumination withering, wherein the illumination intensity is 2200-2500 lux, the humidity is 60-70%, culturing at 20-25 ℃ for 14-16 h, turning the agilawood leaves for 4-6 times during the culturing period, and carrying out dark withering after illumination withering to obtain withered tea leaves;

(2) shaking green: cutting withered tea leaves into tea leaves with the width of 1-2 cm, rocking the tea leaves for the first time to obtain raw tea leaves, adding an acid solution to immerse the raw tea leaves, soaking the raw tea leaves for 20-40 s, washing the soaked raw tea leaves for 30-40 min with water, and rocking the tea leaves for the second time to obtain primary tea leaves;

(3) drying: heating to 60-70 ℃ at the speed of 2-3 ℃/min, drying the primary tea, continuously heating to 80-90 ℃, keeping for 10-15 min, and cooling to obtain a finished product;

further, the mass ratio of the nutrient containing the chlorella to the agilawood leaves is 0.05-0.07: 1;

further, the nutrient containing the chlorella comprises the following raw materials in parts by weight: 8-10 parts of sodium alginate, 3-5 parts of soybean meal, 4-6 parts of a silica gel solution with the mass concentration of 10-12%, 2-4 parts of a calcium chloride solution with the mass concentration of 70-80% and 2-4 parts of a culture containing chlorella; the culture containing the chlorella is obtained by culturing the chlorella until the cell density is stable;

further, the preparation method of the nutrient containing chlorella comprises the following steps:

(c) adding sodium alginate, soybean meal powder and a silica gel solution with the mass concentration of 10-12% into water, stirring, heating in a water bath at 40-50 ℃ for 20-30 min, and cooling to obtain a gel solution;

(d) and adding a calcium chloride solution with the mass concentration of 70-80% into the gel solution, stirring, adding a culture containing chlorella, and culturing at 23-27 ℃ for 40-50 min to obtain the nutrient containing chlorella.

Further explaining, in the step (1), the agilawood leaves are turned over during the culture period, oxygen is introduced while the agilawood leaves are turned over every time, and the ventilation time is 20-30 min; turning to a dark ventilation place for withering in the dark, and culturing for 8-10 h at 20-25 ℃;

further explaining, in the step (1), the agilawood leaves further comprise repeated illumination withering and dark withering, the dark withering is carried out after the illumination withering for 1 withering period, and the agilawood leaves are subjected to 2-3 withering periods to obtain withered tea leaves;

further, in the step (2), the first shaking is carried out for 15-20 min at a speed of 50-55 r/min; the second green shaking is carried out for 25-30 min at a speed of 70-80 r/min;

further, in the step (2), the acid solution is a citric acid solution;

further, in the step (2), the mass concentration of the citric acid solution is 40-50%.

Compared with the prior art, the invention has the beneficial effects that:

the agilawood white tea prepared by adopting a specific process is accompanied by special compound aroma, is rich in various active ingredients, has good oxidation resistance, high tea quality, easy control of product quality and low requirement on production equipment, and is beneficial to large-scale industrial production.

In addition, the invention adopts the nutrient containing the chlorella, can rapidly destroy the epidermal structure of the leaves when the tea leaves wither, accelerate the shrinkage of palisade tissues and promote the dissolution of substances contained in the tea leaves; by utilizing the gel embedding technology of sodium alginate, a suitable growth environment for chlorella can be provided, the condition for forming gel by the sodium alginate is mild, the inactivation of active substances such as protein, cells, enzyme and the like can be avoided, and some bioactive molecules are combined through the salt bond and hydrogen bond; the chlorella releases oxygen through photosynthesis, can maintain the freshness of tea within a certain time, improves various enzyme activities in tea cells, can destroy cell walls by synergistic withering effect, promotes the appropriate physical and chemical changes of substances in the tea, is favorable for promoting the micro fermentation of the agilawood leaves, dissipates grass smell, and enriches the flavor components of the agilawood white tea.

Drawings

FIG. 1 is a graph showing the result of the experiment on the DPPH free radical and OH free radical scavenging rate of the agilawood white tea soup bases prepared in examples 1 to 5 and comparative examples 1 to 4 of the present invention

Detailed Description

In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.

The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.

The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.

Example 1

A preparation method of agilawood white tea comprises the following steps:

(1) withering: according to the mass ratio of 0.05: 1, taking 500g of picked agilawood leaves, spreading the agilawood leaves until the thickness is 1cm, adding 25g of nutrient containing chlorella, stirring, carrying out illumination withering, wherein the illumination intensity is 2350lux, the humidity is 60%, culturing is carried out for 16h at 22 ℃, the agilawood leaves are stirred for 4 times during the culturing period, oxygen is introduced while the agilawood leaves are stirred for each time, the oxygen is introduced for 20min, the agilawood leaves are turned to a dark ventilation position after illumination withering and dark withering is carried out, culturing is carried out for 8h at 25 ℃, the dark withering is carried out after illumination withering to be 1 withering period, and the agilawood leaves are subjected to 2 withering periods to obtain withered tea leaves;

the nutrient containing chlorella comprises the following raw materials in parts by weight: 80g of sodium alginate, 30g of soybean meal, 40g of a silica gel solution with the mass concentration of 12%, 20g of a calcium chloride solution with the mass concentration of 80% and 20g of a culture containing chlorella; wherein the culture containing chlorella is obtained by culturing chlorella with an inoculation amount of 80g/L until the cell density is stable;

the preparation method of the nutrient containing chlorella comprises the following steps:

(a) adding sodium alginate, soybean meal powder and 12% silica gel solution into water, stirring, heating in 45 deg.C water bath for 20min, and cooling to obtain gel solution;

(b) adding 80% calcium chloride solution into the gel solution, stirring, adding culture containing Chlorella, and culturing at 25 deg.C for 40min to obtain nutritional agent containing Chlorella;

(2) shaking green: cutting withered tea leaves into 1cm in width, rocking for 15min at 50r/min to obtain raw tea leaves, adding a citric acid solution with the mass concentration of 50% to immerse the raw tea leaves, soaking for 20s, washing for 30min with water, and rocking for 25min at 70r/min to obtain primary tea leaves;

(3) drying: heating to 60 deg.C at 2 deg.C/min, oven drying, heating to 80 deg.C for 10min, and cooling to obtain the final product.

Example 2

A preparation method of agilawood white tea comprises the following steps:

(1) withering: according to the mass ratio of 0.07: 1, spreading 500g of picked agilawood leaves to a thickness of 2cm, adding 35g of nutrient containing chlorella, stirring, carrying out illumination withering, wherein the illumination intensity is 2500lux and the humidity is 70%, culturing at 22 ℃ for 14h, turning the agilawood leaves for 6 times during the culture, turning the agilawood leaves each time while introducing oxygen, introducing the oxygen for 30min, carrying out dark withering after illumination withering and turning to a dark ventilation position, culturing at 20 ℃ for 10h, carrying out dark withering to 1 withering period after illumination withering, and carrying out 3 withering periods on the agilawood leaves to obtain withered tea leaves;

the nutrient containing chlorella comprises the following raw materials in parts by weight: 100g of sodium alginate, 50g of soybean meal, 60g of 10% silica gel solution, 40g of 70% calcium chloride solution and 40g of chlorella-containing culture; wherein the culture containing chlorella is obtained by culturing chlorella with an inoculum size of 70g/L until the cell density is stable;

the preparation method of the nutrient containing chlorella comprises the following steps:

(a) adding sodium alginate, soybean meal powder and 10% silica gel solution into water, stirring, heating in 50 deg.C water bath for 30min, and cooling to obtain gel solution;

(b) adding 70% calcium chloride solution into the gel solution, stirring, adding culture containing Chlorella, and culturing at 25 deg.C for 50min to obtain nutritional agent containing Chlorella;

(2) shaking green: cutting withered tea into 2cm in width, rocking for 20min at 55r/min to obtain raw tea, adding citric acid solution with mass concentration of 40% to immerse the raw tea, soaking for 40s, washing with water for 40min, and rocking for 30min at 80r/min to obtain primary tea;

(3) drying: heating to 70 deg.C at 3 deg.C/min, oven drying the primary tea, heating to 90 deg.C, maintaining for 15min, and cooling to obtain the final product.

Example 3

A preparation method of agilawood white tea comprises the following steps:

(1) withering: according to the mass ratio of 0.06: 1, spreading 500g of picked agilawood leaves to a thickness of 2cm, adding 30g of nutrient containing chlorella, stirring, carrying out illumination withering, wherein the illumination intensity is 2300lux and the humidity is 65%, culturing at 25 ℃ for 15h, turning the agilawood leaves for 5 times during the culture, turning the agilawood leaves each time while introducing oxygen, introducing the oxygen for 25min, carrying out dark withering after illumination withering, transferring to a dark ventilation position for dark withering, culturing at 22 ℃ for 9h, carrying out dark withering after illumination withering to 1 withering period, and carrying out 3 withering periods on the agilawood leaves to obtain withered tea leaves;

the nutrient containing chlorella comprises the following raw materials in parts by weight: 90g of sodium alginate, 40g of soybean meal, 50g of 11% silica gel solution, 30g of 75% calcium chloride solution and 30g of chlorella-containing culture; wherein the culture containing chlorella is obtained by culturing chlorella with an inoculum size of 75g/L until the cell density is stable;

the preparation method of the nutrient containing chlorella comprises the following steps:

(a) adding sodium alginate, soybean meal powder and 11% silica gel solution into water, stirring, heating in 45 deg.C water bath for 25min, and cooling to obtain gel solution;

(b) adding 75% calcium chloride solution into the gel solution, stirring, adding culture containing Chlorella, and culturing at 25 deg.C for 45min to obtain nutritional agent containing Chlorella;

(2) shaking green: cutting withered tea into 2cm in width, rocking for 18min at 52r/min to obtain raw tea, adding 45% citric acid solution to immerse the raw tea, soaking for 30s, washing with water for 40min, and rocking for 28min at 75r/min to obtain primary tea;

(3) drying: heating to 70 deg.C at 3 deg.C/min, oven drying, heating to 85 deg.C, maintaining for 12min, and cooling to obtain the final product.

Example 4

The same preparation method of agilawood white tea according to example 3 was distinguished by: the nutrient containing the chlorella is prepared by different dosages, starch is selected to replace soybean meal powder, and the dosages of a calcium chloride solution and a culture containing the chlorella are changed, namely the nutrient containing the chlorella comprises the following raw materials by weight: 90g of sodium alginate, 40g of starch, 50g of a silica gel solution with the mass concentration of 11%, 55g of a calcium chloride solution with the mass concentration of 75% and 45g of a culture containing chlorella; wherein the culture containing Chlorella is obtained by culturing Chlorella with an inoculum size of 75g/L until the cell density is stable.

Example 5

The same preparation method of agilawood white tea according to example 3 was distinguished by: the preparation method of the nutrient containing the chlorella is different, namely adding sodium alginate, soybean meal and 11% silica gel solution by mass into water, stirring, adding 75% calcium chloride solution by mass, heating in water bath at 45 ℃ for 25min, cooling, adding culture containing the chlorella, and culturing at 25 ℃ for 45min to obtain the nutrient containing the chlorella.

Comparative example 1

The same preparation method of agilawood white tea according to example 3 was distinguished by: the chlorella culture solution is adopted to replace the nutrient containing chlorella, namely: culturing chlorella with the inoculation amount of 75g/L until the cell density is stable to obtain a chlorella culture solution.

Comparative example 2

The same preparation method of agilawood white tea according to example 3 was distinguished by: the preparation method of the yeast culture solution comprises the following steps of replacing a nutrient containing chlorella with the yeast culture solution: inoculating 75g/L yeast into YPD liquid culture medium, and culturing at 25 deg.C for 2d to obtain yeast culture solution.

Comparative example 3

The same preparation method of agilawood white tea according to example 3 was distinguished by: the illumination withering conditions are different, the illumination intensity is 3000lux, the humidity is 65%, the culture is carried out for 20h at the temperature of 30 ℃, and the agilawood leaves are not turned over during the culture.

Comparative example 4

The same preparation method of agilawood white tea according to example 3 was distinguished by: in the step (2), a citric acid solution with the mass concentration of 45% is added for soaking for 5 min.

First, testing the blade structure

Cutting the eaglewood leaves into 1cm²The eagle leaves were fixed on the glass slides by the paraffin flaking method, the epidermal thickness and the fence tissue thickness were measured by an Olympus BX51 optical microscope, 3 fields were randomly selected, the thickness was measured using an image measuring tool, and the shrinkage rates of the epidermal thickness and the fence tissue thickness before and at the end of withering in examples 1 to 5 and comparative examples 1 to 3 were calculated as shown in table 1:

item	Skin shrinkage (%)	Fence tissue shrinkage (%)
			Example 1	15.4	50.3
Example 2	16.6	48.7
			Example 3	17.3	51.4
Example 4	14.1	47.5
			Example 5	13.6	46.5
Comparative example 1	10.8	39.0
			Comparative example 2	9.7	32.2
Comparative example 3	12.8	45.6

As can be seen from the above table, in the embodiments 1 to 3 of the present invention, when withering is completed, the shrinkage rate of the leaf epidermis of the eaglewood leaves is 15.4 to 17.3%, and the shrinkage rate of the fence tissue is 48.7 to 51.4%, which indicates that the chlorella-containing nutritional agent of the present invention synergistically withers, so that the epidermis structure of the leaf can be rapidly destroyed, the shrinkage rate of the fence tissue of the leaf can be accelerated, dissolution of the substances contained in the eaglewood leaf cells can be facilitated, and the quality of the prepared eaglewood white tea can be improved; the raw material components and the mixture ratio of the nutrient containing the chlorella in the embodiment 4 are different, and the preparation method for preparing the nutrient containing the chlorella in the embodiment 5 is different, so that the preparation method disclosed by the invention adopts scientific mixture ratio and combines a specific preparation process, so that the sodium alginate can form a gel with three-dimensional cross-linking, high-temperature and high-sun exposure and mixed bacteria pollution are avoided, and the biological activity of the chlorella is reduced.

The highest shrinkage rates of the epidermis and the palisade tissues of the comparative examples 1-3 are 12.8% and 45.6% respectively, and the lowest shrinkage rate of the comparative example 2 is shown to be that the chlorella-containing nutrient is adopted, the autotrophic effect of the chlorella can be utilized to promote the enzyme activity in the agilawood tea cells, the cell walls are damaged by the synergistic withering effect, the permeability of the leaf cell membranes is improved, the nutrient is promoted to act on the intracellular epidermal cells, the shrinkage rates of the epidermis and the palisade tissues are improved, but the chlorella is not processed by an embedding technology and is easy to die under the influence of the environment in the tea withering process; the illumination withering condition of the comparative example 3 easily affects the growth environment of chlorella, and the shrinkage rate is somewhat reduced.

Second, anti-oxidation experiment

2.5g of the agilawood white tea prepared in the examples 1-5 and the comparative examples 1-4 are brewed with 100mL of boiled water at 85 ℃ for 5min, the tea leaves are filtered and cooled to obtain agilawood white tea soup, 0.5mL of the agilawood white tea soup is respectively taken, the removal rates of DPPH free radicals and OH free radicals of the tea soup are respectively measured by a spectrophotometer, a DPPH method and a salicylic acid method, and 3 times of repetition are set;

the DPPH method: the concentration of the prepared DPPH absolute ethyl alcohol solution is 2.4 multiplied by 10^-4Adding 0.5mL of DPPH absolute ethyl alcohol solution into the tea soup at mol/L, mixing, carrying out dark reaction for 30min to obtain a reactant, replacing the tea soup with absolute ethyl alcohol, carrying out dark reaction to obtain a reference substance, measuring the absorbance value at a wavelength of 517nm, adjusting the absolute ethyl alcohol solution to zero, wherein the measured absorbance value is A₀And the absorbance value measured by the reactant is A₁Absorbance value of A measured for the control₂The calculation formula is as follows: clearance (%) - (1- (A)₀-A₁)/A₂]100％；

Salicylic acid method: preparing anhydrous ethanol salicylic acid solution with the concentration of 9mmol/L and preparing FeSO₄The solution concentration is 9mmol/L, H₂O₂The solution concentration is 8mmol/L, FeSO is added into 1mL of absolute ethyl alcohol salicylic acid solution₄Adding 1mL of the solution, adding tea soup, and adding H₂O₂Adding distilled water 11.5mL into solution 1mL to obtain sample, and adding FeSO into anhydrous alcohol salicylic acid solution 1mL₄1mL of solution, add H₂O₂Adding distilled water 12mL into solution 1mL to obtain a zero pointAdding FeSO into 1mL of absolute ethyl alcohol salicylic acid solution₄Adding tea soup into 1mL of the solution, adding distilled water 13.5mL to obtain control, heating in water bath at 37 deg.C for 15min, taking out, measuring absorbance at 510nm wavelength, wherein the absorbance of the sample is A₁Zero absorbance value of A₀The absorbance value of the control is A₂Clearance (%) - [1- (A)₀-A₁)/A₂]100％；

The results are shown in table 2 and fig. 1:

as can be seen from the above table, the agilawood white tea prepared in embodiments 1 to 3 of the present invention has a high clearance rate for DPPH radicals and OH radicals at the bottom of the tea, and the clearance rates are as high as 86.4% and 89.7%, respectively, which indicates that the present invention adopts a specific preparation process to promote dissolution of more active substances from the tea leaves, so that the tea bottom has a high clearance rate for DPPH radicals and OH radicals, so that the agilawood white tea has a certain antioxidant activity, and further improves the quality of the tea leaves.

The free radical clearance rate of the comparative examples 1-3 is low, and the fact that the nutrition agent containing chlorella is adopted and the withering effect is cooperated to control the withering degree of the tea leaves, so that substances in tea leaves are promoted to generate chemical reactions gradually, more active ingredients are promoted to be generated, and the quality of the tea leaves is improved.

In conclusion, the invention adopts the nutrient of the chlorella and combines a specific processing technology, so that the shrinkage rate of the epidermis and the fence tissue of the leaf of the agilawood can be accelerated, and the active ingredients of the agilawood white tea can be enhanced, thereby improving the oxidation resistance of the agilawood white tea and further improving the quality of the tea. The method has the advantages of simple production process, low requirement on equipment, easy control of product quality and realization of large-scale production of the agilawood white tea.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.