A method for accelerating aging of tangerine peel

Abstract

The invention discloses a method for accelerating aging of tangerine peel, comprising the following steps: cyclically aging the tangerine peel to be aged in an environment of high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity in turn every day; wherein the temperature of the high temperature and high humidity is 45-55°C, and the humidity is 60-80%; the temperature of the medium temperature and medium humidity is 30-40°C, and the humidity is 40-60%; the temperature of the low temperature and low humidity is 10-25°C, and the humidity is 20-40%. The invention is beneficial to improving the quality of tangerine peel products by cyclically aging the tangerine peel to be aged in an environment of high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity in turn every day; the aging process of the invention has the advantages of short cycle, convenient operation, etc.

Description

Technical Field

[0001] The invention belongs to the technical field of tangerine peel aging, and in particular relates to a method for accelerating tangerine peel aging. Background Art

[0002] Tangerine peel, also known as orange peel, is the mature peel of the citrus plant and its cultivated varieties. It is produced in Guangdong, Fujian, Sichuan, Chongqing, Zhejiang, Jiangxi, Hunan and other places, among which Xinhui and Sihui in Guangdong have the best geology.

[0003] Tangerine peel has good medicinal value such as preventing and treating cardiovascular system diseases, anti-oxidation, anti-inflammatory, anti-tumor, etc., contains volatile oil compounds that can remove free radicals in the body, play anti-oxidation and anti-aging effects, and contains flavonoid compounds that can lower blood pressure, lower blood lipids, prevent and improve cardiovascular and cerebrovascular diseases, and also contains chemical components such as tangerine peel polysaccharides, synephrine, pectin and pigment. Tangerine peel has the saying of "the older the better" since ancient times, that is, the longer the aging time, the higher its medicinal value. But tangerine peel aging is too long, which easily leads to unstable tangerine peel quality, and medicinal and economic value decline. Therefore, a method for accelerating the aging of tangerine peel is developed, and the quality of tangerine peel products is improved and has certain market value. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned prior art, a method for accelerating the aging of tangerine peel is provided. The present invention helps to improve the quality of tangerine peel products by cyclically aging the tangerine peel to be aged in an environment of high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity every day. The aging process of the present invention has the advantages of short cycle and convenient operation.

[0005] The object of the present invention is to provide a method for accelerating the aging of tangerine peel, comprising: subjecting the tangerine peel to be aged to a cycle of aging in an environment of high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity in sequence every day; wherein:

[0006] The temperature of the high temperature and high humidity is 45-55°C, and the humidity is 60-80%;

[0007] The medium temperature and medium humidity have a temperature of 30-40°C and a humidity of 40-60%;

[0008] The temperature of the low temperature and low humidity is 10-25° C., and the humidity is 20-40%.

[0009] In some embodiments of the present invention, the temperature of the high temperature and high humidity is 45-50° C., and the humidity is 65-75%.

[0010] In some embodiments of the present invention, the medium temperature and medium humidity has a temperature of 30-35° C. and a humidity of 45-55%.

[0011] In some embodiments of the present invention, the temperature of the low temperature and low humidity is 15 - 20 °C, and the humidity is 25 - 35%.

[0012] In some embodiments of the present invention, the aging time of the high temperature and high humidity is H1, where 0 hour < H1 < 24 hours; specifically, H1 includes but is not limited to 0.5 hour, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 7 hours, 8 hours, 9 hours, 10 hours, 11 hours, 12 hours, 13 hours, 14 hours, 15 hours, 16 hours, 17 hours, 18 hours, 19 hours, 20 hours, 21 hours, 22 hours, 23 hours.

[0013] In some preferred embodiments of the present invention, the aging time of the high temperature and high humidity is 6 - 12 hours.

[0014] In some preferred embodiments of the present invention, the aging time of the high temperature and high humidity is 8 hours.

[0015] In some embodiments of the present invention, the aging time of the medium temperature and medium humidity is H2, where 0 hour < H2 < 24 hours; specifically, H1 includes but is not limited to 0.5 hour, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 7 hours, 8 hours, 9 hours, 10 hours, 11 hours, 12 hours, 13 hours, 14 hours, 15 hours, 16 hours, 17 hours, 18 hours, 19 hours, 20 hours, 21 hours, 22 hours, 23 hours.

[0016] In some preferred embodiments of the present invention, the aging time of the medium temperature and medium humidity is 6 - 12 hours.

[0017] In some preferred embodiments of the present invention, the aging time of the medium temperature and medium humidity is 8 hours.

[0018] In some embodiments of the present invention, the aging time of the low temperature and low humidity is H3, where 0 hour < H3 < 24 hours; specifically, H1 includes but is not limited to 0.5 hour, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 7 hours, 8 hours, 9 hours, 10 hours, 11 hours, 12 hours, 13 hours, 14 hours, 15 hours, 16 hours, 17 hours, 18 hours, 19 hours, 20 hours, 21 hours, 22 hours, 23 hours.

[0019] In some preferred embodiments of the present invention, the aging time of the low temperature and low humidity is 6 - 12 hours.

[0020] In some preferred embodiments of the present invention, the aging time of the low temperature and low humidity is 8 hours.

[0021] In some embodiments of the present invention, the total time of the cyclic aging is 20 to 90 days.

[0022] In some embodiments of the present invention, the cyclic aging is performed in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 35-45%.

[0023] In some embodiments of the present invention, the tangerine peel to be aged is citrus peel.

[0024] In some embodiments of the present invention, the water content of the tangerine peel to be aged is ≤30wt%.

[0025] In some embodiments of the present invention, the origin of the tangerine peel to be aged is Xinhui City, Guangdong Province.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) The present invention can effectively inhibit the occurrence of mildew during the aging process of the tangerine peel by cyclically aging the tangerine peel in an environment of high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity in sequence every day, thereby maintaining the excellent quality of the tangerine peel product.

[0028] (2) The present invention shortens the aging period of tangerine peel, prevents tangerine peel from becoming moldy during the aging process, and greatly improves the medicinal and economic value of tangerine peel products. The tangerine peel aging process of the present invention is simple to operate and can be widely used in tangerine peel aging.

[0029] (3) The present invention reduces the content of hesperidin, a main component of tangerine peel, and increases the content of nobiletin and tangeretin, so that the color of tangerine peel becomes darker, the fresh fruit smell is reduced, and the aged flavor becomes stronger. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with 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 should fall within the scope of protection of the present invention.

[0031] Freshly picked Xinhui citrus fruits were peeled, and the citrus peels were dried to a moisture content of ≤30wt%. The dried citrus peels were then randomly stored in 60 citrus peel cages. The 60 citrus peel cages were divided into 12 groups, with 5 citrus peel cages in each group. The citrus peels in the citrus peel cages in groups 1 to 11 were used for aging in Examples 1 to 7 and Comparative Examples 1 to 4, respectively, and the citrus peels in the citrus peel cages in group 12 were used as a pre-aging group (i.e., a blank control group). All the dried citrus peels were reserved for use, and the contents of hesperidin, nobiletin and tangeretin were determined by high performance liquid chromatography.

[0032] Example 1

[0033] This embodiment provides a method for accelerating aging of tangerine peel, which specifically comprises the following steps:

[0034] The first group of five citrus peel net cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a high temperature and high humidity environment, a medium temperature and medium humidity environment, and a low temperature and low humidity environment, respectively, every day. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 35%. After 90 days of cycled aging, the dried tangerine peels are obtained.

[0035] The high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity environments of this embodiment are shown in Table 1.

[0036] Table 1. Tangerine peel aging conditions of Example 1.

[0037] environment Temperature(℃) humidity(%) Time (h) High temperature and humidity 45 80 6 medium temperature medium humidity 30 60 6 Low temperature and low humidity 25 40 12

[0038] Example 2

[0039] This embodiment provides a method for accelerating aging of tangerine peel, which specifically comprises the following steps:

[0040] The second group of five citrus peel cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a high temperature and high humidity environment, a medium temperature and medium humidity environment, and a low temperature and low humidity environment, respectively, every day. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 45%. After 90 days of cycled aging, the dried tangerine peels are obtained.

[0041] The high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity environments of this embodiment are shown in Table 2.

[0042] Table 2. Tangerine peel aging conditions of Example 2.

[0043] environment Temperature(℃) humidity(%) Time (h) High temperature and humidity 55 60 12 medium temperature medium humidity 40 40 6 Low temperature and low humidity 10 20 6

[0044] Example 3

[0045] This embodiment provides a method for accelerating aging of tangerine peel, which specifically comprises the following steps:

[0046] The third group of five citrus peel cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a high temperature and high humidity environment, a medium temperature and medium humidity environment, and a low temperature and low humidity environment, respectively, every day. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 40%. After 90 days of cycled aging, the dried tangerine peels are obtained.

[0047] The high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity environments of this embodiment are shown in Table 3.

[0048] Table 3. Tangerine peel aging conditions of Example 3.

[0049] environment Temperature(℃) humidity(%) Time (h) High temperature and humidity 50 70 6 medium temperature medium humidity 35 50 12 Low temperature and low humidity 20 30 6

[0050] Example 4

[0051] This embodiment provides a method for accelerating the aging of dried tangerine peel. The only difference from Example 1 is that "aging after a 90-day cycle" is replaced by "aging after a 20-day cycle", and "the first group of 5 citrus peel cages for storing dried citrus peels" is replaced by "the fourth group of 5 citrus peel cages for storing dried citrus peels", thereby obtaining dried tangerine peel.

[0052] Example 5

[0053] This embodiment provides a method for accelerating aging of tangerine peel, which specifically comprises the following steps:

[0054] The fifth group of five citrus peel cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a high temperature and high humidity environment, a medium temperature and medium humidity environment, and a low temperature and low humidity environment, respectively, every day. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 35%. After 20 days of cycled aging, the dried tangerine peels are obtained.

[0055] The high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity environments of this embodiment are shown in Table 4.

[0056] Table 4. Tangerine peel aging conditions of Example 5.

[0057] environment Temperature(℃) humidity(%) Time (h) High temperature and humidity 45 75 8 medium temperature medium humidity 35 45 8 Low temperature and low humidity 20 35 8

[0058] Example 6

[0059] This embodiment provides a method for accelerating aging of tangerine peel, which specifically comprises the following steps:

[0060] The sixth group of five citrus peel cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a high temperature and high humidity environment, a medium temperature and medium humidity environment, and a low temperature and low humidity environment, respectively, every day. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 45%. After 20 days of cycled aging, the dried tangerine peels are obtained.

[0061] The high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity environments of this embodiment are shown in Table 5.

[0062] Table 5. Tangerine peel aging conditions of Example 6.

[0063] environment Temperature(℃) humidity(%) Time (h) High temperature and humidity 50 65 8 medium temperature medium humidity 30 55 8 Low temperature and low humidity 15 25 8

[0064] Example 7

[0065] This embodiment provides a method for accelerating aging of tangerine peel, which specifically comprises the following steps:

[0066] The seventh group of five citrus peel cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a high temperature and high humidity environment, a medium temperature and medium humidity environment, and a low temperature and low humidity environment, respectively, every day. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 40%. After 20 days of cycled aging, the dried tangerine peels are obtained.

[0067] The high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity environments of this embodiment are shown in Table 6.

[0068] Table 6. Tangerine peel aging conditions of Example 7.

[0069] environment Temperature(℃) humidity(%) Time (h) High temperature and humidity 48 70 8 medium temperature medium humidity 33 50 8 Low temperature and low humidity 18 30 8

[0070] Comparative Example 1

[0071] This comparative example provides a method for accelerating the aging of tangerine peel, and the specific preparation steps are as follows:

[0072] The eighth group of five citrus peel cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a high temperature and high humidity environment and a medium temperature and medium humidity environment, respectively, every day. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 35%. After 90 days of cycled aging, the dried tangerine peels are obtained.

[0073] The high temperature and high humidity and medium temperature and medium humidity environments of this embodiment are shown in Table 7.

[0074] Table 7. Tangerine peel aging conditions of Comparative Example 1.

[0075] environment Temperature(℃) humidity(%) Time (h) High temperature and humidity 45 80 12 medium temperature medium humidity 30 60 12

[0076] Comparative Example 2

[0077] This comparative example provides a method for accelerating the aging of tangerine peel, and the specific preparation steps are as follows:

[0078] The ninth group of five citrus peel net cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a high temperature and high humidity environment and a low temperature and low humidity environment every day in sequence. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 35%. After 90 days of cycled aging, the dried tangerine peels are obtained.

[0079] The high temperature and high humidity, and low temperature and low humidity environments of this embodiment are shown in Table 8.

[0080] Table 8. Tangerine peel aging conditions for Comparative Example 2.

[0081] environment Temperature(℃) humidity(%) Time (h) High temperature and humidity 45 80 12 Low temperature and low humidity 25 40 12

[0082] Comparative Example 3

[0083] This comparative example provides a method for accelerating the aging of tangerine peel, and the specific preparation steps are as follows:

[0084] The 10th group of 5 citrus peel cages storing dried citrus peels are placed in a temperature and humidity control room, and the temperature and humidity in the temperature and humidity control room are adjusted so that the dried tangerine peels to be aged are cycled and aged in a medium temperature and medium humidity environment and a low temperature and low humidity environment every day. The cycled aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 35%. After 90 days of cycled aging, the dried tangerine peels are obtained.

[0085] The medium temperature and medium humidity and low temperature and low humidity environments of this embodiment are shown in Table 9.

[0086] Table 9. Tangerine peel aging conditions for Comparative Example 3.

[0087] environment Temperature(℃) humidity(%) Time (h) medium temperature medium humidity 30 60 12 Low temperature and low humidity 25 40 12

[0088] Comparative Example 4

[0089] This comparative example provides a method for accelerating the aging of tangerine peel, and the specific preparation steps are as follows:

[0090] The 11th group of 5 citrus peel cages storing dried citrus peels were placed under natural conditions (Xinhui area) for 90 days.

[0091] Performance Test:

[0092] (1) Test of the content of hesperidin, nobiletin and tangeretin: The content of hesperidin, nobiletin and tangeretin in the aged tangerine peel of Examples 1 to 7 and Comparative Examples 1 to 4 was tested by high performance liquid chromatography. A standard curve was first formed with a standard solution, and then the experimental sample was tested. The experimental sample curve was compared with the standard curve to obtain the content of the test sample. Each sample was tested three times in parallel and the average value was taken. The test results are shown in Table 10.

[0093] Table 10. Content of substances in aged tangerine peel of Examples 1 to 7 and Comparative Examples 1 to 4 (mg / g).

[0094] Tangerine peel Hesperidin Nobiletin Tangeretin Example 1 32.01 5.74 3.77 Example 2 32.04 5.71 3.75 Example 3 31.99 5.75 3.78 Example 4 35.54 5.53 3.53 Example 5 31.83 5.72 3.76 Example 6 31.84 5.70 3.78 Example 7 31.86 5.73 3.75 Comparative Example 1 41.02 5.27 3.39 Comparative Example 2 41.17 5.34 3.38 Comparative Example 3 40.98 5.37 3.35 Comparative Example 4 42.35 5.21 3.24 Before aging 43.56 5.04 3.12

[0095] As shown in Table 10, the tangerine peel aging process of Examples 1 to 7 of the present invention reduces the content of hesperidin, the main component of tangerine peel, while increasing the contents of nobiletin and tangeretin, darkens the color of tangerine peel, reduces the fresh fruit smell, and strengthens the aged flavor.

[0096] (2) Taste test of aged tangerine peel: 20 trained people aged 10 to 60 years old were randomly selected as the jury. 50 g of the aged tangerine peel obtained in Examples 1 to 7 and Comparative Examples 1 to 4 were weighed and put into 1 L cups respectively. 700 mL of boiling water was added and soaked for 5 minutes, and then the tea was poured out. Each judge evaluated the tea made from the aged tangerine peel of Examples 1 to 7 and Comparative Examples 1 to 4. The evaluation aspects included aroma, taste and color. The scoring range was 1 to 10 points, with 1 point being the lowest and 10 points being the full score. The average score was calculated. The evaluation results are shown in Table 11.

[0097] Table 11. Sensory evaluation results of dried tangerine peel obtained in Examples 1 to 7 and Comparative Examples 1 to 4.

[0098]

[0099]

[0100] As shown in Table 11, the aged tangerine peels prepared in Examples 1 to 7 of the present invention have good aroma, good taste and good color.

[0101] The aging time of high temperature and high humidity, the aging time of medium temperature and medium humidity, and the aging time of low temperature and low humidity in Example 1 of the present invention can also be other times, and it is necessary to ensure that the aging time of low temperature and low humidity + the aging time of medium temperature and medium humidity + the aging time of low temperature and low humidity is 24 hours, and the aging time of high temperature and high humidity, the aging time of medium temperature and medium humidity, and the aging time of low temperature and low humidity are all greater than 0 hours and less than 24 hours. Specifically, the aging time of high temperature and high humidity includes but is not limited to 0.5 hours, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 7 hours, 8 hours, 9 hours, 10 hours, 11 hours, 13 hours, 14 hours, 15 hours, 16 hours, 17 hours, 18 hours, 19 hours, 20 hours, 21 hours, 22 hours, and 23 hours; the aging time of medium temperature and medium humidity includes but is not limited to 0.5 hours, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 7 hours, 8 hours, 9 hours, 10 hours , 11 hours, 13 hours, 14 hours, 15 hours, 16 hours, 17 hours, 18 hours, 19 hours, 20 hours, 21 hours, 22 hours, 23 hours; the low temperature and low humidity aging time includes but is not limited to 0.5 hours, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 7 hours, 8 hours, 9 hours, 10 hours, 11 hours, 13 hours, 14 hours, 15 hours, 16 hours, 17 hours, 18 hours, 19 hours, 20 hours, 21 hours, 22 hours, 23 hours.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the specification of this application, the technicians can still modify or replace the specific implementation mode of the present invention with equivalents, but these modifications or changes do not deviate from the scope of protection of the pending claims of the present application.

Claims

1. A method for accelerating aging of tangerine peel, characterized in that: The following steps are involved: The dried tangerine peel to be aged is aged in a cycle in an environment of high temperature and high humidity, medium temperature and medium humidity, and low temperature and low humidity every day; wherein, The temperature of the high temperature and high humidity is 45~55℃, and the humidity is 60~80%; The medium temperature and medium humidity are 30-40°C and 40-60% in humidity; The low temperature and low humidity are 10~25℃ and 20~40% in humidity; The aging time for low temperature and low humidity + the aging time for medium temperature and medium humidity + the aging time for low temperature and low humidity is 24 hours, and the aging time for high temperature and high humidity, the aging time for medium temperature and medium humidity, and the aging time for low temperature and low humidity are all greater than 0 hours and less than 24 hours; the total aging time is 20 to 90 days.

2. The method for accelerating aging of tangerine peel according to claim 1, wherein: The temperature of the high temperature and high humidity is 45-50° C., and the humidity is 65-75%.

3. The method for accelerating aging of tangerine peel according to claim 1, wherein: The medium temperature and medium humidity have a temperature of 30-35° C. and a humidity of 45-55%.

4. The method for accelerating aging of tangerine peel according to claim 1, wherein: The low temperature and low humidity have a temperature of 15-20° C. and a humidity of 25-35%.

5. The method for accelerating aging of tangerine peel according to claim 1, wherein: The high temperature and high humidity aging time is 6 to 12 hours.

6. The method for accelerating aging of tangerine peel according to claim 1, characterized in that: The medium temperature and medium humidity aging time is 6 to 12 hours.

7. The method for accelerating aging of tangerine peel according to claim 1, characterized in that: The low temperature and low humidity aging time is 6 to 12 hours.

8. The method for accelerating aging of tangerine peel according to claim 1, characterized in that: The cyclic aging is carried out in a ventilated environment, and the oxygen volume fraction in the ventilated environment is 35-45%.

9. The method for accelerating aging of tangerine peel according to any one of claims 1 to 8, characterized in that: The water content of the tangerine peel to be aged is ≤30wt%, and the origin is Xinhui District, Jiangmen City, Guangdong Province.

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