Burning incense with Yongchun fingered citron tea as spice and manufacturing method of burning incense

Abstract

The invention relates to the technical field of burning incense, provides burning incense with Yongchun fingered citron tea as spice and a manufacturing method of the burning incense, and solves the problems that when existing burning incense is ignited in a cold mode, the smell is rushing, the fragrance level and durability are insufficient, burning is not stable, smoke is large, an incense body is prone to cracking and deformation, and moisture resistance is poor. Comprising the following raw materials in parts by weight: 30-45 parts of fingered citron tea powder, 10-30 parts of a wood flour base, 5-12 parts of microencapsulated tea fragrance, 8-15 parts of a natural adhesive, 1-5 parts of activated carbon, 0.8-1.8 parts of composite catalytic microspheres and 1-3 parts of an auxiliary material, the wood powder base is composed of nanmu powder, bamboo charcoal powder, symplocos paniculata powder and agilawood powder. The auxiliary material is any one of spina date seed powder, natural wormwood powder or poria cocos powder; the cross section of the burning incense is provided with a core layer, a transition layer and an outer layer which are sequentially arranged from inside to outside, the thickness of the core layer accounts for 30-50% of the total thickness of the cross section, the thickness of the transition layer accounts for 20-35% of the total thickness of the cross section, and the thickness of the outer layer accounts for 25-40% of the total thickness of the cross section.

Description

TECHNICAL FIELD

[0001] The present application relates to incense technology field, and particularly to a kind of incense with Yongchun Buddha hand tea as spice and its production method. BACKGROUND

[0002] The existing incense products generally have the following shortcomings: first, the incense has a strong smell at the initial stage of ignition, and the fragrance is not persistent, which results in a poor cold ignition experience; second, the incomplete combustion leads to more black smoke and odors, reducing the ornamental value and comfort; third, the incense has poor stability, and is prone to extinguish, explode or scatter during burning; fourth, the incense body is prone to crack and deformation during drying and storage, affecting the yield and appearance; fifth, the incense has poor moisture resistance and is prone to mold in humid environments.

[0003] Chinese Patent Publication No. CN120501317A discloses an easy-to-ignite incense, which includes a fragrance stick and a fragrance body. The fragrance body is wrapped around the outside of the fragrance stick, and the top of the fragrance body is connected to a fragrance head. The fragrance body includes 75%-90% wood powder, 5%-25% adhesive, and 0.05%-5% fast-burning agent by mass percentage. The fragrance head includes 70%-90% flammable wood powder, 5%-25% adhesive, and 0.05%-8% fast-burning agent by mass percentage. The fast-burning agent is sodium nitrate, and the adhesive is incense glue powder. The top of the fragrance head is provided with raised text or patterns, and the outside of the fragrance body is provided with raised patterns or text. The cross-sectional area of the fragrance head is smaller than that of the fragrance body. The fragrance body is a cylindrical body, and the outer surface of the fragrance body is provided with a decorative layer. The invention has a simple structure, and the fragrance head can be easily and quickly ignited. Then, the fragrance head ignites the fragrance body, making the incense easy to ignite quickly. The product is aesthetically pleasing, and the consumer experience is good. However, the incense does not have a tea fragrance, and has poor stability, low smoke, and less odor.

[0004] Chinese Patent Publication No. CN120053723A discloses a fire-resistant threaded incense column and a preparation method thereof. The fire-resistant threaded incense column includes the following components by weight: coconut shell powder 5-20 parts, carbon powder 5-15 parts, sandalwood powder 10-30 parts, cypress powder 1-5 parts, bamboo powder 5-15 parts, stearic acid modified silicon dioxide 3-8 parts, elm bark powder 5-10 parts, Indonesian nanmu powder 5-10 parts, modified adhesive 10-30 parts, polyunsaturated fatty acid 1-5 parts, and mosquito repellent 0.01-0.4 parts. In the invention, the interaction between the components in the fire-resistant threaded incense column makes it have better fire resistance, drop resistance, compression strength, anti-extinguishing ability, and thermal storage stability. However, the incense has a strong smell at the initial stage of ignition, and the fragrance is not persistent, which results in a poor cold ignition experience. SUMMARY

[0005] Therefore, aiming at the above problems, the present application provides a kind of incense with Yongchun Buddha's hand tea as spice and its production method, solve the existing incense in cold ignition smell nose, fragrance level and persistence is insufficient, combustion is not stable and big, and the problem of cracking deformation and poor moisture resistance of incense body.

[0006] To achieve the above object, the present application adopts the following technical solutions:

[0007] An incense with Yongchun Buddha's hand tea as spice, comprising the following weight parts of raw materials: Buddha's hand tea powder 30-45 parts, wood powder base 10-30 parts, microencapsulated tea fragrance 5-12 parts, natural adhesive 8-15 parts, activated carbon 1-5 parts, composite catalytic microspheres 0.8-1.8 parts, and auxiliary materials 1-3 parts; the auxiliary materials are any one of jujube kernel powder, natural wormwood powder or poria cocos powder;

[0008] Among them, the incense has a core layer, a transition layer and an outer layer arranged in turn from the inside to the outside on the cross section, the core layer thickness accounts for 30-50% of the total thickness of the cross section, the transition layer thickness accounts for 20-35% of the total thickness of the cross section, and the outer layer thickness accounts for 25-40% of the total thickness of the cross section; the mass fraction of the composite catalytic microspheres on the cross section is gradiently distributed with the core layer higher than the outer layer, and the mass fraction of the core layer composite catalytic microspheres is 1.5-3.0 times that of the outer layer composite catalytic microspheres; the average particle size of the microencapsulated tea fragrance on the cross section is layered distributed with the outer layer larger than the core layer, and the average particle size of the outer layer is 1.2-2.0 times that of the core layer.

[0009] In the auxiliary materials, jujube kernel powder is used in sleep scene with Buddha's hand tea and agarwood powder; the addition of natural wormwood powder does not affect the tea fragrance base tone, and has a mild mosquito-repelling effect; for humid environment, the proportion of nanmu powder is increased, and poria cocos powder is added to improve the moisture resistance of the incense and avoid mildew.

[0010] The Buddha's hand tea powder is classified by special grade tea powder, first grade tea powder and second grade tea powder, and is used in high-end incense products, middle-end incense products and mass incense products respectively; the special grade tea powder and / or first grade tea powder is subjected to low-temperature fragrance extraction treatment at 45-50℃ for 2h before being used for incense making.

[0011] Further, the composite catalytic microspheres have KNO3 and KNO2 eutectic salt as the core layer, are coated with CeO2 and Fe2O3 solid solution nanometer layer, are further coated with silica shell layer, and have hydrophobic silica ultra-thin layer as the outermost layer.

[0012] The preparation process of the composite catalytic microspheres is as follows: a, preparing KNO3 and KNO2 eutectic salt micro-nuclei with a molar ratio of KNO3 to KNO2 of 1:0.8-1.2, and forming by co-precipitation crystallization; b, depositing in situ on the surface of the micro-nuclei to form a CeO2 and Fe2O3 solid solution nanometer layer; c, coating with tetraethyl orthosilicate and ammonia water to form a silica shell layer; d, surface modification of the hydrophobic silica ultra-thin layer with a silane coupling agent to obtain the composite catalytic microspheres.

[0013] The KNO3 / KNO2 eutectic salt of the core layer provides an appropriate amount of active oxygen when heated, and the outer layer of CeO2 and Fe2O3 solid solution is beneficial to the activation of oxygen and the improvement of the redox environment, which synergistically improves the stable combustion and sustained combustion performance, reduces the risk of extinguishing and deflagration in the middle; the catalytic effect of the composite catalytic microspheres makes the incense body burn more fully, reduces black smoke and miscellaneous gas; at the same time, the silica shell layer and the outermost hydrophobic silica can inhibit the penetration of water vapor and particle agglomeration, reduce smoke particles and irritating odor, and the overall appearance is more refreshing; the hydrophobic outer layer reduces the risk of moisture absorption and dampening, and improves the stability of the incense body in a humid environment; at the same time, it reduces the risk of bursting and fly ash.

[0014] Further, the microencapsulated tea incense includes a wall material and a core material, the core material is a mixture of Yongchun Buddha's hand tea essential oil and d-limonene, and the wall material is formed by mixing gelatin and gum arabic.

[0015] Further, the wood powder base is composed of nanmu powder, bamboo charcoal powder, white sandalwood powder and agarwood powder.

[0016] Further, the natural adhesive is a combination of nanmu powder and plant starch, and the mass ratio of nanmu powder to plant starch is 1-3:1; the plant starch is selected from one or a mixture of two or more of any ratio of cassava starch, potato starch and corn starch.

[0017] The preparation method of the incense with Yongchun Buddha's hand tea as the spice includes the following steps:

[0018] S1, preparation of raw materials: prepare each raw material according to weight parts, and dry the Buddha's hand tea powder, wood powder base and activated carbon to a water content of ≤8wt%, and pass through an 80-120 mesh sieve for standby;

[0019] S2, preparation of microencapsulated tea incense: prepare a wall material with a weight ratio of gelatin to gum arabic of 1:1, prepare a core material with a mass ratio of Yongchun Buddha's hand tea essential oil to d-limonene of 4-9:1, and prepare microcapsules of different particle sizes under the conditions of pH 4.0-5.5 and 45-55℃ by complex coagulation method, and then perform spray drying or freeze drying to obtain the microencapsulated tea incense;

[0020] S3, layered mixing: the core layer is added with composite catalytic microspheres, so that the mass fraction of the composite catalytic microspheres is 1.5-3.0 times the amount of the composite catalytic microspheres in the outer layer, and the outer layer is added with microencapsulated tea fragrance, so that the average particle size of the microencapsulated tea fragrance is 1.2-2.0 times the average particle size of the microencapsulated tea fragrance in the core layer;

[0021] S4, kneading and forming: a three-layer coaxial core-shell extrusion process is adopted, and the thickness of the core layer, the transition layer and the outer layer accounts for 30-50%, 20-35% and 25-40% of the total cross-sectional thickness, respectively;

[0022] S5, drying and shaping: first, low-temperature drying is performed at 45-55°C for 12-24h to obtain a water content of ≤12%, and then medium-temperature drying is performed at 60-70°C for 6-12h to obtain a water content of ≤8%, and a micro-negative pressure is maintained during the drying process to inhibit bursting and deformation;

[0023] S6, aging and packaging: aging is performed at 25±2°C and a relative humidity of 45-55% for 48-72h, and then the product is sealed and packaged after passing the inspection to obtain incense with Yongchun Buddha's hand tea as the fragrance.

[0024] In step S3, the mixed incense base can be subjected to initial kneading by a machine and then manual kneading for 10-15 minutes, and a three-kneading-three-waking process is adopted to enhance the density of the incense base, so that the incense aroma is more uniform and the incense aroma is released more gently.

[0025] In step S5, a dew drying step can be added, and the incense is placed in a ventilated and cool place for 2-3h in the morning of the second day of drying, and the environmental humidity is 60%-70%, so that the humidity of the incense is adjusted by using natural water vapor to make the incense aroma more warm and moist.

[0026] The aging time of the high-end incense product is extended to 30-60 days, 1-2 pieces of fresh Yongchun Buddha's hand tea leaves are placed in a sealed container, the tea fragrance is used to nourish the incense, and the tea fragrance and other incense aromas are deeply integrated.

[0027] Further, the particle size of the composite catalytic microspheres is 20-50μm, and the atomic ratio of Ce to Fe in the CeO2 and Fe2O3 solid solution nanolayer is 1-3:1.

[0028] Further, in step S4, the three-layer coaxial core-shell extrusion process adopts a concentric double screw, and the extrusion rate ratio of the core layer, the transition layer and the outer layer is 1:(0.9-1.1):(0.8-1.0).

[0029] Furthermore, in step S4, a three-layer coaxial core-shell extrusion process is used to obtain an incense stick blank, which is then cut to a set length to obtain an incense stick. The incense stick is 8-10cm long, 1.2-1.5mm in diameter, and has a single burning time of 15-20min. The incense stick blank is then wound around and cut using a chuck to obtain a coil incense. The coil incense has a diameter of 10cm or 15cm, corresponding to burning times of 2h and 4h, respectively. The edges of the coil incense are rounded and polished.

[0030] The incense sticks are portable and suitable for use in small spaces such as cars and office desks; the incense coils are suitable for home settings.

[0031] The forming pressure of incense sticks is controlled at 0.3-0.4 MPa, and the forming pressure of incense coils is controlled at 0.4-0.5 MPa.

[0032] The handmade incense sticks are made using the traditional Yongchun pulling technique. The incense blanks are stretched by hand to a diameter of 1.5-3mm and then naturally hung to dry. The finished product retains the handmade texture, which enhances the added value of the product.

[0033] Furthermore, in step S5, a 2-4 hour balance rehydration is set between the low-temperature drying and the medium-temperature drying to reduce the risk of cracking and deformation.

[0034] By adopting the aforementioned technical solution, the beneficial effects of the present invention are as follows:

[0035] 1. It adopts a layered aroma structure and microencapsulated tea aroma. The outer layer of large particles first releases the aroma, and the inner layer of small particles replenishes the aroma later. It is not pungent when lit cold, and the aroma is cleaner, more delicate and layered, and the aroma lasts longer.

[0036] 2. The composite catalytic microspheres help stabilize combustion inside, and together with activated carbon, they adsorb impurities, resulting in smooth ignition, stable afterburning, and more complete ash settling. This reduces impurities and irritating odors, presenting a softer, lower-smoke combustion experience.

[0037] 3. The three-layer co-extrusion process makes the incense sticks strong and not easy to break. Combined with the segmented drying and re-moistening process, the finished product is not easy to crack or deform. The specifications can be easily switched, and it can be made into both stick incense and coil incense. The rounded edge grinding makes it safer.

[0038] 4. Made with a combination of nanmu powder, bamboo charcoal powder, sandalwood powder, and agarwood powder, resulting in a purer tea aroma; jujube seed powder, natural mugwort powder, and poria powder can be added as needed to meet different usage scenarios. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the cross-sectional structure of the incense burner in Embodiment 1 of the present invention;

[0040] The labels in the diagram are: core layer 1, transition layer 2, and outer layer 3. Detailed Implementation

[0041] Embodiment 1

[0042] A kind of incense with Yongchun Buddha's hand tea as spice, comprising the following weight parts of raw materials: Buddha's hand tea powder 30 parts, wood powder base 10 parts, microencapsulated tea fragrance 5 parts, natural adhesive 8 parts, activated carbon 1 part, composite catalytic microspheres 0.8 parts, and adjuvant 1 part;The wood powder base is composed of Phoebe zhennuensis powder, bamboo charcoal powder, white sandalwood powder and agarwood powder;The adjuvant is Zizyphus jujuba mill seed powder;

[0043] Wherein, reference Figure 1 , the incense has a core layer 1, a transition layer 2 and an outer layer 3 arranged in turn from inside to outside on the cross section, the thickness of the core layer 1 accounts for 50% of the total thickness of the cross section, the thickness of the transition layer 2 accounts for 20%, and the thickness of the outer layer 3 accounts for 30%; The mass fraction of the composite catalytic microspheres on the cross section is gradiently distributed with the core layer being higher than the outer layer, and the mass fraction of the composite catalytic microspheres in the core layer is 1.5 times that of the composite catalytic microspheres in the outer layer; The average particle size of the microencapsulated tea fragrance on the cross section is layered distributed with the outer layer being larger than the core layer, and the average particle size of the outer layer is 1.2 times that of the core layer.

[0044] The Buddha's hand tea powder is classified by special grade tea powder, first grade tea powder and second grade tea powder, and is respectively used for high-end incense products, middle-end incense products and mass incense products, and the special grade tea powder and / or the first grade tea powder is subjected to low-temperature fragrance extraction treatment at 45℃ for 2h before being used for incense making.

[0045] The Phoebe zhennuensis powder is preferably ground from Phoebe zhennuensis branches and trunks produced in Yongchun, sterilized at 120℃ for 30 minutes, which not only ensures viscosity but also reduces impurity residues; The bamboo charcoal powder is selected from old bamboo charcoal produced by burning more than 3-year-old bamboo in Yongchun, filtered twice through an 80-mesh screen, which enhances the adsorption of odors and the combustion-supporting effect.

[0046] The composite catalytic microspheres have a KNO3 and KNO2 eutectic salt as a core layer, an outer CeO2 and Fe2O3 solid solution nanometer layer, a silica shell layer, and a hydrophobic silica ultrathin layer on the outermost layer; The particle size of the composite catalytic microspheres is 50μm, and the atomic ratio of Ce to Fe in the CeO2 and Fe2O3 solid solution nanometer layer is 2:1.

[0047] The preparation process of the composite catalytic microspheres is as follows: a, KNO3 and KNO2 eutectic salt micro-nuclei are prepared in a molar ratio of 1:1.2, and formed by co-precipitation crystallization; b, a CeO2 and Fe2O3 solid solution nanometer layer is formed in situ on the surface of the micro-nuclei; c, a silica shell layer is formed by sol-gel coating with tetraethyl orthosilicate and ammonia water; d, the surface of the hydrophobic silica ultrathin layer is modified by a silane coupling agent to obtain the composite catalytic microspheres.

[0048] The microencapsulated tea incense comprises a wall material and a core material, the core material comprises a mixture of Yongchun Buddha's hand tea essential oil and d-limonene, and the wall material is formed by mixing gelatin and gum arabic.

[0049] The natural adhesive is a combination of phoebe powder and plant starch, and the mass ratio of the two is 1:1; the plant starch is at least one selected from tapioca starch, potato starch and corn starch.

[0050] The preparation method of the incense with Yongchun Buddha's hand tea as a spice comprises the following steps:

[0051] S1, preparation of raw materials: prepare each raw material according to weight parts, and dry the Buddha's hand tea powder, wood powder base and activated carbon to a water content of 8wt%, and pass through a 120 mesh sieve for standby;

[0052] S2, preparation of microencapsulated tea incense: prepare the wall material according to the weight ratio of gelatin and gum arabic being 1:1, and prepare the core material according to the mass ratio of Yongchun Buddha's hand tea essential oil and d-limonene being 5:1, and prepare microcapsules of different particle sizes by complex coagulation method at pH 4.0 and 45℃, and then perform spray drying or freeze drying to obtain microencapsulated tea incense;

[0053] S3, layered mixing: add the composite catalytic microspheres to the core layer so that the mass fraction is 1.5 times the amount of the outer layer, and add the microencapsulated tea incense to the outer layer so that the average particle size is 1.2 times that of the core layer;

[0054] S4, kneading and molding: adopt a three-layer coaxial core-shell extrusion process, and control the thickness of the core layer, transition layer and outer layer to be 50%, 20% and 30% of the total cross-sectional thickness, respectively;

[0055] S5, drying and shaping: first low-temperature drying at 45℃ for 12h to a water content of 10%, and then medium-temperature drying at 60℃ for 12h to a water content of 8%, and maintain a slight negative pressure during the process to inhibit bursting and deformation;

[0056] S6, aging and packaging: aging at 25℃ and a relative humidity of 45% for 48h, and then sealing and packaging after inspection to obtain incense with Yongchun Buddha's hand tea as a spice.

[0057] In step S4, the three-layer coaxial core-shell extrusion process adopts a concentric double screw, and the extrusion rate ratio of the core layer, transition layer and outer layer is 1:0.9:0.8.

[0058] In step S4, a linear incense blank is obtained by using a three-layer coaxial core-shell extrusion process, and is cut into a length to obtain a linear incense, the length of the linear incense is 10 cm, the diameter is 1.2 mm, and the single burning time is 15 min; the linear incense blank is formed by surrounding the chuck and cutting to obtain a disc incense, the diameter of the disc incense is 10 cm, and the corresponding burning time is 2 h, and the edge of the disc incense is arc-shaped polishing.

[0059] In step S5, the low-temperature drying and the medium-temperature drying are balanced for 2 h to reduce the risk of cracking and deformation.

[0060] The linear incense prepared by the above method is a sleep-aid incense, and the combination of the hovenia dulcis powder, the bergamot tea powder and the agarwood powder is suitable for sleep scenes.

[0061] Example 2

[0062] The difference from example 1 is that a linear incense with bergamot tea as a flavoring agent includes the following raw materials by weight: 35 parts of bergamot tea powder, 10 parts of wood powder base, 8 parts of microencapsulated tea fragrance, 10 parts of natural adhesive, 2 parts of activated carbon, 1.2 parts of composite catalytic microspheres, and 2 parts of auxiliary materials; the wood powder base is composed of nanmu powder, bamboo charcoal powder, white sandalwood powder and agarwood powder; the auxiliary material is natural wormwood powder. Other technical solutions are the same as example 1.

[0063] The linear incense prepared by the above method is a mosquito-repellent incense, and the addition of natural wormwood powder does not affect the tea fragrance base tone, and has a mild mosquito-repellent effect.

[0064] Example 3

[0065] The difference from example 1 is that a linear incense with bergamot tea as a flavoring agent includes the following raw materials by weight: 30 parts of bergamot tea powder, 30 parts of wood powder base, 10 parts of microencapsulated tea fragrance, 10 parts of natural adhesive, 2 parts of activated carbon, 1.2 parts of composite catalytic microspheres, and 2 parts of auxiliary materials; the wood powder base is composed of nanmu powder, bamboo charcoal powder, white sandalwood powder and agarwood powder; the auxiliary material is natural wormwood powder. Other technical solutions are the same as example 1.

[0066] The linear incense prepared by the above method is a moisture-proof incense, and the nanmu powder is set to 30 parts by weight, and the fomes japonica powder is added to improve the moisture-proof performance of the incense and avoid mildew.

[0067] Comparative example 1

[0068] The difference from example 1 is that the composite catalytic microspheres and the microencapsulated tea fragrance are not added to the raw materials. Other technical solutions are the same as example 1.

[0069] The performance of the incense prepared in examples 1 to 3 and comparative example 1 is tested, and the results are shown in table 1.

[0070] Table 1

[0071]

[0072] The burning rate of Example 1 is faster, the falling ash temperature is lower, and the visibility of smoke is significantly lower compared to the comparative examples, indicating that the incense prepared by the technical solution is more fully combusted, and has good low-smoke and stable-burning properties.

[0073] The performance test refers to GB 26386-2011 "General Technical Conditions for Safety of Incense Products".

[0074] Although the present application is specifically shown and described in connection with preferred embodiments, those skilled in the art will appreciate that various modifications in form and detail can be made without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. An incense burner using Yongchun Buddha's Hand tea as a fragrance, characterized in that, The product comprises the following raw materials in parts by weight: 30-45 parts Buddha's Hand tea powder, 10-30 parts wood powder base, 5-12 parts microencapsulated tea fragrance, 8-15 parts natural binder, 1-5 parts activated carbon, 0.8-1.8 parts composite catalytic microspheres, and 1-3 parts excipients; wherein the excipients are any one of jujube seed powder, natural mugwort powder, or poria cocos powder. The incense has a core layer, a transition layer, and an outer layer arranged sequentially from the inside to the outside in its cross-section. The thickness of the core layer accounts for 30-50% of the total thickness of the cross-section, the thickness of the transition layer accounts for 20-35% of the total thickness of the cross-section, and the thickness of the outer layer accounts for 25-40% of the total thickness of the cross-section. The mass fraction of the composite catalytic microspheres in the cross-section is distributed in a gradient pattern where the core layer has a higher mass fraction than the outer layer, and the mass fraction of the composite catalytic microspheres in the core layer is 1.5-3.0 times that of the mass fraction of the composite catalytic microspheres in the outer layer. The average particle size of the microencapsulated tea fragrance in the cross-section is distributed in a layered pattern where the outer layer has a larger average particle size than the core layer, and the average particle size of the outer layer is 1.2-2.0 times that of the average particle size of the core layer.

2. The incense using Yongchun Buddha's Hand tea as a spice according to claim 1, characterized in that, The composite catalytic microspheres have a core layer of KNO3 and KNO2 eutectic salt, an outer layer of CeO2 and Fe2O3 solid solution nanolayers, a silica shell, and an outermost layer of hydrophobic silica ultrathin layer.

3. The incense using Yongchun Buddha's Hand tea as a spice according to claim 1, characterized in that, The microencapsulated tea fragrance comprises a wall material and a core material. The core material is a mixture of Yongchun Buddha's Hand tea essential oil and d-limonene, and the wall material is formed by a mixture of gelatin and gum arabic.

4. The incense using Yongchun Buddha's Hand tea as a spice according to claim 1, characterized in that, The wood powder base is composed of nanmu powder, bamboo charcoal powder, sandalwood powder and agarwood powder.

5. The incense using Yongchun Buddha's Hand tea as a fragrance according to claim 1, characterized in that, The natural adhesive is a combination of nanmu powder and plant starch, with a mass ratio of nanmu powder to plant starch of 1-3:1; the plant starch is selected from one or more of cassava starch, potato starch, and corn starch in any proportion.

6. The method for preparing incense using Yongchun Buddha's Hand tea as a spice according to claim 1, characterized in that, Includes the following steps: S1. Preparation of raw materials: Prepare each raw material according to the weight parts, and dry the Buddha's Hand tea powder, wood powder base and activated carbon separately to a moisture content of ≤8wt%, and pass them through an 80-120 mesh sieve for later use; S2. Preparation of microencapsulated tea aroma: The wall material is prepared by a weight ratio of gelatin and gum arabic of 1:1, and the core material is prepared by a mass ratio of Yongchun Buddha's Hand tea essential oil and d-limonene of 4-9:

1. Microcapsules of different particle sizes are prepared by complex coagulation at pH 4.0-5.5 and 45-55℃, and then spray-dried or freeze-dried to obtain microencapsulated tea aroma. S3, Layered mixing: Composite catalytic microspheres are added to the core layer, making their mass fraction 1.5-3.0 times that of the outer layer composite catalytic microspheres; microencapsulated tea fragrance is added to the outer layer, making its average particle size 1.2-2.0 times that of the core layer microencapsulated tea fragrance. S4. Kneading and molding: A three-layer coaxial core-shell extrusion process is adopted, and the thicknesses of the core layer, transition layer and outer layer are controlled to account for 30-50%, 20-35% and 25-40% of the total thickness of the cross section, respectively. S5. Drying and shaping: First, dry at a low temperature of 45-55℃ for 12-24 hours until the moisture content is ≤12%, then dry at a medium temperature of 60-70℃ for 6-12 hours until the moisture content is ≤8%. During this period, maintain a slight negative pressure to suppress cracking and deformation. S6. Aging and Packaging: Aging is carried out at 25±2℃ and relative humidity of 45-55% for 48-72 hours. After passing the inspection, the product is sealed and packaged to obtain incense with Yongchun Buddha's Hand Tea as the flavoring.

7. The incense using Yongchun Buddha's Hand tea as a spice according to claim 2, characterized in that, The composite catalytic microspheres have a particle size of 20-50 μm, and the ratio of Ce to Fe atoms in the CeO2 and Fe2O3 solid solution nanolayer is 1-3:

1.

8. The incense using Yongchun Buddha's Hand tea as a spice according to claim 2, characterized in that, The preparation process of the composite catalytic microspheres is as follows: a) KNO3 and KNO2 eutectic salt micronuclei are prepared according to a molar ratio of KNO3 to KNO2 of 1:0.8-1.2, and formed by co-precipitation crystallization; b) CeO2 and Fe2O3 solid solution nanolayers are deposited in situ on the surface of the micronuclei; c) Tetraethyl orthosilicate is mixed with ammonia water for sol-gel coating to form a silica shell; d) The surface of the hydrophobic silica ultrathin layer is modified with a silane coupling agent to obtain composite catalytic microspheres.

9. A method for preparing incense using Yongchun Buddha's Hand tea as a spice according to claim 6, characterized in that, In step S4, the three-layer coaxial core-shell extrusion process uses a concentric twin-screw extruder, and the extrusion rate ratio of the core layer, transition layer, and outer layer is 1:(0.9-1.1):(0.8-1.0).

10. A method for preparing incense using Yongchun Buddha's Hand tea as a spice according to claim 6, characterized in that, In step S4, a three-layer coaxial core shell extrusion process is used to obtain an incense stick blank, which is then cut to a set length to obtain an incense stick. The incense stick is 8-10cm long, 1.2-1.5mm in diameter, and has a single burning time of 15-20min. The incense stick blank is then wound around and cut to obtain a coil incense. The coil incense has a diameter of 10cm or 15cm, corresponding to burning times of 2h and 4h, respectively. The edges of the coil incense are rounded and polished.

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