Large-leaf honey yellow tea and preparation method thereof

Abstract

The invention belongs to the field of tea leaves, and particularly relates to big-leaf honey yellow tea and a preparation method thereof. The big-leaf honey yellow tea comprises the following components in parts by weight: 1-3 parts of multicoloured leaves, 1-5 parts of common bombax flowers, 1-3 parts of partridge tea and 15-25 parts of big-leaf tea. According to the preparation method disclosed by the invention, the multicoloured leaves, the kapok and the partridge tea are heaped to yellow together with the Hainan big-leaf tea, so that the taste of the Hainan big-leaf tea is enriched, the antioxidant activity of the Hainan big-leaf tea is improved, the health-care effect of the Hainan big-leaf tea is better, related products of the Hainan big-leaf tea are enriched, and the core competitiveness of the Hainan big-leaf tea is favorably improved; and the method has important significance for promoting the development of Hainan big-leaf tea.

Description

Technical Field

[0001] The invention belongs to the field of tea, and particularly relates to large-leaf honey yellow tea and a preparation method thereof. Background Art

[0002] Hainan large-leaf tea is one of the first batch of national tea varieties approved, numbered "Huacha No. 16 (GSCT16)". Due to its superior growing environment, scarce germplasm resources, unique taste and taste, it has excellent quality. The black tea made from it has a bright red soup color, a mellow and fresh taste, and has the characteristics of "amber soup, milk and honey aroma". Therefore, using Hainan large-leaf tea as raw material to develop related tea products is of great significance to enrich Hainan large-leaf tea related products and enhance the core competitiveness of Hainan large-leaf tea. Summary of the invention

[0003] The invention provides a large-leaf honey yellow tea and a preparation method thereof, which can greatly enrich the tea.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A large-leaf honey yellow tea comprises the following components in parts by weight: 1-3 parts of pandan leaves, 1-5 parts of kapok flowers, 1-3 parts of partridge tea leaves and 15-25 parts of large-leaf tea.

[0006] Furthermore, the large-leaf honey yellow tea comprises the following components in parts by weight: 2 parts of pandan leaves, 3 parts of kapok flowers, 2 parts of partridge tea leaves, and 20 parts of large-leaf tea.

[0007] Furthermore, the large-leaf tea is Hainan large-leaf tea with one bud and two leaves.

[0008] Furthermore, the pandan leaves are fresh pandan leaves, the kapok flowers are freshly opened kapok flowers; and the partridge tea leaves are old partridge tea leaves.

[0009] A method for preparing large-leaf honey yellow tea comprises the following steps:

[0010] (1) Spreading: Cut the pandan leaves into small pieces, take pandan leaves, kapok flowers, partridge tea and large-leaf tea and spread them for 36-48 hours respectively;

[0011] (2) Fixing of large leaf tea and partridge tea: Fixing of large leaf tea and partridge tea until the leaves have no grass smell, no gloss on the surface, dark green color, and a clear fragrance;

[0012] (3) After the green leaves are killed, they are covered with wet cloth to turn yellow and become soft.

[0013] (4) Rolling: Mix large-leaf tea, partridge tea, pandan leaves, and kapok and roll them evenly. Roll them gently for a long time in the early stage, and then slowly roll them with pressure.

[0014] (5) Yellowing after kneading and twisting: Yellowing continues after kneading and twisting;

[0015] (6) Drying: After the rough fire, steam until it is still hot and turn it yellow. Then, heat it until it is completely dry. Steam it again while it is still hot and then let it cool.

[0016] Furthermore, in the step (1), during the withering process, the thickness of the green leaves of Banhuaye, Kapok and Partridge Tea is 5-10 cm, and the thickness of the green leaves of Large Leaf Tea is 15-20 cm; in the step (2), a high-temperature drum withering machine is used for withering, the withering temperature is about 340-360°C, the leaf feeding amount is 150kg / h-200kg / h, and the withering time is 1.0-1.5min.

[0017] Furthermore, in the step (3), each material is covered with a wet cloth and allowed to soak until yellow for 4.5-5.5 hours.

[0018] Furthermore, in the step (3), the kneading time is 30-60 minutes.

[0019] Furthermore, in the step (4), the dough is further allowed to yellow for 10-15 hours after kneading.

[0020] Furthermore, in the step (6), the drying conditions are: rough firing temperature 100-110°C, thickness 2-3cm, yellowing for 2 hours while hot after rough firing, then full firing temperature 70°C, thickness 3-5cm, until fully dry, and yellowing again for 3-5 hours.

[0021] The application of the above-mentioned large-leaf honey yellow tea in the preparation of antioxidant preparations.

[0022] Beneficial effects of the present invention:

[0023] The invention selects pandan leaves, kapok flowers and partridge tea to combine with Hainan large-leaf tea, and prepares the honey yellow tea through the preparation methods of withering, yellowing and rolling, etc., which not only enriches the taste of Hainan large-leaf tea, but also improves the antioxidant activity of Hainan large-leaf tea, makes the health care effect better, enriches the products related to Hainan large-leaf tea, is beneficial to improve the core competitiveness of Hainan large-leaf tea, and is of great significance to promoting the development of Hainan large-leaf tea. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] A large-leaf honey yellow tea comprises the following components in parts by weight: 1 part of pandan leaves, 1 part of kapok flowers, 1 part of partridge tea leaves and 15 parts of large-leaf tea.

[0027] The large leaf tea is Hainan large leaf tea, the colorful leaves are fresh colorful leaves, the kapok flowers are freshly opened kapok flowers, and the partridge tea leaves are old partridge tea leaves.

[0028] A method for preparing large-leaf honey yellow tea comprises the following steps:

[0029] (1) Spreading: Take the materials in the formula and spread them respectively; cut the pandan leaves into small pieces, the thickness of pandan leaves, kapok flowers and partridge tea is 5-10cm, and the thickness of large leaf tea is 15-20cm, and spread for 36 hours;

[0030] (2) Fixing: Large-leaf tea and partridge tea are fixed with a high-temperature drum fixing machine at a temperature of 340°C, a leaf feeding rate of 150 kg / h, and a fixing time of about 1 minute. Fixing is performed until the leaves have no grass smell, a dull surface, a dark green color, and a clear fragrance.

[0031] (3) After the green leaves are killed, the partridge tea and large-leaf tea are covered with wet cloth and yellowed for 4.5 hours to soften. The large-leaf tea and partridge tea leaves are rolled after softening.

[0032] (4) Rolling: Mix large-leaf tea, partridge tea leaves, pandan leaves, and kapok flowers and roll them evenly. Roll them gently for a long time in the early stage, and then slowly roll them with pressure. Roll them for a total of 30-60 minutes.

[0033] (5) Yellowing after rolling and twisting: continue to yellow for 10 hours after rolling and twisting;

[0034] (6) Drying: Rough fire temperature 100-110℃, thickness 2-3cm, after rough fire, steam and turn yellow for 2 hours while hot, then fully fire at 70℃, thickness 3-5cm, until fully dry, steam and turn yellow again for 3-5 hours while hot. . Then spread to cool.

[0035] Example 2

[0036] A large-leaf honey yellow tea comprises the following components in parts by weight: 3 parts of pandan leaves, 5 parts of kapok flowers, 3 parts of partridge tea leaves and 25 parts of large-leaf tea.

[0037] A method for preparing large-leaf honey yellow tea comprises the following steps:

[0038] (1) Spreading: Take the materials in the formula and spread them respectively; cut the pandan leaves into small pieces, the thickness of the pandan leaves, kapok flowers and partridge tea is 5-10cm, and the thickness of the large leaf tea is 15-20cm, and spread for 48 hours;

[0039] (2) Fixing: Large-leaf tea and partridge tea are fixed with a high-temperature drum fixing machine at a temperature of 360°C, a leaf feeding rate of 200 kg / h, and a fixing time of about 1.5 min. Fixing is performed until the leaves have no grass smell, a dull surface, a dark green color, and a clear fragrance.

[0040] (3) After the green leaves are killed, the tea leaves are covered with wet cloth and then yellowed for 5.5 hours to soften.

[0041] (4) Rolling: large leaf tea, partridge tea, pandan leaves and kapok are mixed and rolled, with long-term gentle rolling at the beginning and slow pressure rolling at the end; the total rolling time is 60 minutes;

[0042] (5) Yellowing after rolling and twisting: continue to yellow for 15 hours after rolling and twisting;

[0043] (6) Drying: Rough fire temperature 100-110℃, thickness 2-3cm, after rough fire, steam and turn yellow for 2 hours while hot, then fully fire at 70℃, thickness 3-5cm, until fully dry, steam and turn yellow again for 3-5 hours while hot. . Then spread to cool.

[0044] Example 3

[0045] A large-leaf honey yellow tea comprises the following components in parts by weight: 2 parts of pandan leaves, 3 parts of kapok flowers, 2 parts of partridge tea leaves and 20 parts of large-leaf tea.

[0046] (1) Spreading: Take the materials in the formula and spread them respectively; cut the pandan leaves into small pieces, the thickness of the pandan leaves, kapok flowers and partridge tea is 5-10 cm, and the thickness of the large leaf tea is 15-20 cm, and spread for 40 hours;

[0047] (2) Fixing: Large-leaf tea and partridge tea are fixed with a high-temperature drum fixing machine at a temperature of 350°C, with a leaf feeding rate of 200 kg / h and a fixing time of about 1 minute. Fixation is performed until the leaves have no grass smell, are matte on the surface, are dark green in color, and have a fresh fragrance.

[0048] (3) After the green leaves are killed, the tea leaves are covered with wet cloth and then allowed to turn yellow for 5 hours to soften.

[0049] (4) Rolling: large leaf tea, partridge tea, pandan leaves, and kapok are mixed and rolled. The first step is to roll gently for a long time, and then slowly roll with pressure. The total rolling time is 50 minutes.

[0050] (5) Yellowing after rolling and twisting: continue to yellow for 10 hours after rolling and twisting;

[0051] (6) Drying: Rough fire temperature 100-110℃, thickness 2-3cm, after rough fire, steam and turn yellow for 2 hours while hot, then fully fire at 70℃, thickness 3-5cm, until fully dry, steam and turn yellow again for 3-5 hours while hot. . Then spread to cool.

[0052] In the above embodiment, the large leaf tea is Hainan large leaf tea with one bud and two leaves, which is a medium-sized and large-sized excellent tea tree variety planted in Hainan. The colorful leaves are fresh colorful leaves, the kapok flowers are freshly opened kapok flowers; and the partridge tea leaves are old partridge tea leaves.

[0053] (I) Effects of different preparation methods on the antioxidant effect of large-leaf honey yellow tea

[0054] According to the material composition of the large-leaf honey yellow tea described in Example 3, honey yellow tea was prepared according to the method described in Table 1. 10 g of honey yellow tea was soaked in 95% ethanol by volume for 5 minutes, then ultrasonically extracted for 30 minutes, and the extractant was added to the original volume, centrifuged, and the supernatant was taken as the test solution. DPPH was prepared into a 0.1 mmol / L anhydrous ethanol solution for standby use.

[0055] Prepare the sample solution in three test tubes, mix, shake, and place at room temperature for 30 minutes, then measure the absorbance at a wavelength of 517nm. i : Absorbance of 0.1mL sample solution plus 2mL DPPH solution at 517nm. c : Absorbance of 2mL DPPH solution plus 0.1mL 95% ethanol at 517nm; A j : The absorbance of 0.1 mL sample solution plus 2 mL anhydrous ethanol at 517 nm. Vc was used as a positive control. Each group of experiments was repeated 3 times and the average value was taken. The free radical scavenging rate was calculated as follows: DPPH scavenging rate = [1-(A i -A j ) / A c ]×100%

[0056] Table 1 Comparison of antioxidant effects of different preparation methods

[0057]

[0058]

[0059] It can be seen from Table 1 that the antioxidant effect of the honey yellow tea prepared by the method described in Example 3 of the present invention is significantly higher than that of the other treatment groups, indicating that the present invention adopts the method for preparing honey yellow tea of ​​respectively killing green, steaming yellow-mixing and rolling-steaming yellow-rough fire-steaming yellow-full fire-steaming yellow, which can significantly improve the antioxidant activity of tea leaves.

[0060] (II) Effects of different material compositions on the antioxidant effect of large-leaf honey yellow tea

[0061] Honey yellow tea was prepared by the preparation method of Example 3, and the materials of each treatment group refer to Table 2. Then, the antioxidant activity of each treatment group was determined by referring to the above method.

[0062] Table 2 Effect of different material compositions on antioxidant effect

[0063]

[0064]

[0065] As can be seen from Table 2, the honey yellow tea prepared by the material formula of the three embodiment groups of the present invention has good antioxidant activity, which can reach more than 90%, significantly higher than that of other treatment groups. This shows that the materials of the three embodiment groups of the present invention can significantly improve the antioxidant activity through the combination of compatibility, and the antioxidant effect of the prepared honey yellow tea is significantly higher than that of other treatment groups.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-leaf honey yellow tea, characterized in that: The invention comprises the following components in parts by weight: 1-3 parts of pandan leaves, 1-5 parts of kapok flowers, 1-3 parts of partridge tea leaves and 15-25 parts of large-leaf tea.

2. The large-leaf honey yellow tea according to claim 1, characterized in that: The invention comprises the following components in parts by weight: 2 parts of pandan leaves, 3 parts of kapok flowers, 2 parts of partridge tea leaves and 20 parts of large-leaf tea.

3. The large-leaf honey yellow tea according to claim 1, characterized in that: The large-leaf tea is Hainan large-leaf tea with one bud and two leaves; the colorful leaves are fresh colorful leaves, the kapok flowers are freshly opened kapok flowers; and the partridge tea leaves are old partridge tea leaves.

4. A method for preparing large-leaf honey yellow tea according to any one of claims 1 to 3, characterized in that: The following steps are involved: (1) Spreading: Cut the pandan leaves into small pieces, take pandan leaves, kapok flowers, partridge tea and large-leaf tea and spread them for 36-48 hours respectively; (2) Fixing of large leaf tea and partridge tea: Fixing of large leaf tea and partridge tea until the leaves have no grass smell, no gloss on the surface, dark green color, and a clear fragrance; (3) After the green leaves are killed, they are covered with wet cloth to turn yellow and become soft. (4) Rolling: After softening, the large-leaf tea, partridge tea leaves and pandan leaves are mixed and evenly rolled. In the early stage, they are gently rolled for a long time, and then slowly rolled with pressure. (5) Yellowing after kneading: After kneading, add kapok flowers and mix evenly, then continue to yellowing; (6) Drying: After the rough fire, steam until it is still hot and turn it yellow. Then, heat it until it is completely dry. Steam it again while it is still hot and then let it cool.

5. The preparation method according to claim 4, characterized in that: In the step (1), during the withering process, the thickness of the green leaves of Banhuaye, Kapok and Partridge Tea is 5-10 cm, and the thickness of the green leaves of Large Leaf Tea is 15-20 cm; in the step (2), a high-temperature drum withering machine is used for withering, the withering temperature is about 340-360°C, the leaf feeding amount is 150kg / h-200kg / h, and the withering time is 1.0-1.5min.

6. The preparation method according to claim 4, characterized in that: In the step (3), each material is covered with a wet cloth and allowed to soak for 4.5-5.5 hours.

7. The preparation method according to claim 4, characterized in that: In the step (4), the kneading time is 30-60 minutes.

8. The preparation method according to claim 4, characterized in that: In the step (4), the dough is further allowed to yellow for 10-15 hours after kneading.

9. The preparation method according to claim 4, characterized in that: In the step (6), the drying conditions are: rough firing temperature 100-110°C, thickness 2-3cm, yellowing for 2 hours while hot after rough firing, then full firing temperature 70°C, thickness 3-5cm, until fully dry, and yellowing again for 3-5 hours.

10. Use of the large-leaf honey yellow tea according to any one of claims 1 to 3 in the preparation of antioxidant preparations.

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