KR20220170390A - UV-blocking composition for preventing sunburn of fruit - Google Patents

Abstract

The present invention relates to a UV-blocking composition for preventing sunscald of fruits and a method for preventing sunscald of fruit using the same. The composition of the present invention reduces sunscald (fruit burn) damage caused by abnormal high temperature and strong light during a growing period, and is useful for preventing secondary decay disease infection and improving fruit quality. In addition, a sunscald prevention agent is sprayed by using a speed sprayer for orchards, so that it is effective in reducing labor and reducing working hours.

Description

UV-blocking composition for preventing sunburn of fruit}

The present invention relates to a sunscreen composition for preventing sunburn damage caused by abnormally high temperatures and strong light during the growing season of fruits (fruits).

Sunburn is a type of high-temperature disorder in which the surface of the fruit is exposed to direct sunlight and the skin is browned or necrotic. If minor symptoms are left unattended on fruits, etc., serious secondary damage such as becoming a breeding ground for diseases and pests can occur.

In order to prevent damage, first of all, it is necessary to make trees with sound water power by maintaining thorough disease and pest control and proper amount of fruiting, induce them not to be exposed to direct sunlight, or adjust the watering time for proper moisture management of the soil. In the case of ripe apples, it is necessary to actively respond to farmhouses to minimize damage by spraying calcium carbonate and installing sunshades according to conditions.

Care must be taken when applying calcium carbonate, as the calcium may stain the fruits white until harvest. Accordingly, there is a need to develop a sunscreen that can replace calcium carbonate so that no drug traces remain.

Republic of Korea Patent Publication No. 10-2013-011656

The problem to be solved by the present invention is to provide a sunscreen composition for preventing sunburn of fruits, including a natural palm tree extract and tidal mud (mud) powder, and a method for preventing sunburn of fruits using the same.

In order to solve the above problems, the present invention provides a sunscreen composition for preventing sunburn of fruits, including a natural palm tree extract and mud mud powder.

The sunscreen composition may include 80 to 120% (w/v) of the tidal flat mud (mud) powder based on 100 ml of the natural palm tree extract.

The sunscreen composition may be diluted by further including water, and the water may be included in an amount of 0.1 to 0.8 L per 100 ml of the composition.

In addition, the present invention comprises the steps of preparing a medicinal solution by mixing 80 to 120% (w / v) mud mud (mud) powder based on 100 ml of natural palm tree extract; and diluting the chemical solution with water to provide a method for preparing a sunscreen composition for preventing sunburn of fruits.

The step of diluting the drug solution with water may be dilution by adding 0.1 to 0.8 L of water to 100 ml of the drug solution.

In addition, the present invention provides a method for preventing sunburn of fruit, comprising the step of applying the sunscreen composition to the fruit 2 to 3 times.

The present invention reduces scorching (fruit damage) caused by abnormally high temperature and strong light during the growing season of fruit trees, and is useful for preventing secondary decay disease infection and improving fruit quality. In addition, as an application method, it is effective in reducing labor and reducing labor hours by spraying a sunburn prevention agent using a speed sprayer for orchards.

1 shows a method of preventing fruits from being scorched by treating fruits by combining vegetable wax (natural palm tree extract) with a blocking agent (tidal flat mud powder, liquid formulation) according to an embodiment of the present invention.
2 is a photograph of a spray solution for blocking ultraviolet rays according to an embodiment of the present invention.
3 is a photograph of glass for measuring the UV blocking rate of a sunscreen.
Figure 4 shows the color chart investigation method of the degree of sun damage of Schrader, 2012.
5 is a graph showing the comparison of UV values and the durability of sunscreen between an untreated control group and a group treated with 2.5 times the mud powder (Example 1-2).

The present invention is to provide a sunscreen composition for preventing fruit sunburn, including a natural palm tree extract and tidal mud (mud) powder, and a method for preventing fruit sunburn using the same.

In the present invention, the natural palm tree is a plant belonging to the palm family or palm family, and 2,400 to 2,500 species of a total of 270 genera, such as coconut, date palm, sago palm, birou palm, oil palm, fan palm, king palm, are collectively referred to as palm trees or palm trees. refers to

In the present invention, the natural palm tree extract may be an extract obtained from the root, outer skin, mesocarp, endocarp, or leaf.

In the present invention, the tidal flat mud (mud) serves to aggregate the UV-blocking wax material, which is a natural palm tree extract, without flowing down from the surface of the skin.

In one embodiment of the present invention, when mud flat mud (mud) is included in powder form in the natural palm tree extract, the UV protection rate and UV protection rate are higher than when mud flat mud (mud) is not included and when mud flat mud (mud) is included in liquid form. It was confirmed that the durability was better.

Therefore, the sunscreen composition of the present invention may contain 80 to 120% (w/v) mud mud powder based on 100 ml of natural palm tree extract, preferably 90 to 110% (w/v). ) of tidal flat mud (mud) powder. If less than 80% (w/v) of tidal mud (mud) powder is included based on 100 ml of natural palm tree extract, the cohesive power of natural palm tree extract on the surface of the skin is weak, and the extract may flow down, reducing the UV protection effect. , In the case of containing more than 120% (w/v) mudflat mud (mud) powder, the expression of the active ingredient efficacy of the natural palm tree extract is insignificant, which may reduce the sunscreen effect.

In addition, the sunscreen composition of the present invention may include a 1 to 8-fold solution prepared according to a dilution ratio by adding 0.1 L to 0.8 L of water to 100 ml of the chemical solution.

In addition, the present invention may include a spray solution for sunscreen prepared according to the dilution ratio of the sunscreen composition. Therefore, the sunscreen composition of the present invention can be diluted in water and sprayed (sprayed/applied) to fruits.

In one embodiment of the present invention, based on 100 ml of natural palm tree extract, 100% (w / v) mudflat mud powder (hereinafter referred to as mud powder) and 100% (w / v) mudflat mud liquid (hereinafter referred to as mud liquid) were added to A chemical solution for sunscreen was prepared, and 0.1L, 0.25L, 0.5L, and 0.8L of water were added to each of them according to the dilution factor to prepare a spray solution for sunscreen in a liquid form of 1 to 8 times the amount. Then, solutions according to respective dilution factors to which the mud powder and the mud liquid were added were applied to glass, and the UV blocking effect was compared.

First, as a result of measuring the sunscreen effect of the solution prepared according to the dilution factor, the 2.5-fold diluted solution including mud powder or mud liquid showed a higher sunscreen effect than the 5- to 8-fold diluted solution.

Accordingly, the sunscreen composition of the present invention may specifically further include 2.5 times the volume of water in the 1 time amount.

In addition, as a result of measuring the sunscreen effect according to the difference between the mud powder and the mud liquid, the 2.5 to 5 times diluted solution including the mud powder has a higher sunscreen effect than the 2.5 times diluted solution including the mud powder. appeared high. In addition, as a result of measuring the retention of UV protection 15 days after application, the diluted solution containing mud powder maintained a high blocking rate compared to the diluted solution containing mud liquid.

Therefore, it was confirmed that the mud powder of the present invention can have a better effect on the UV blocking rate and durability than the mud liquid formulation.

In another embodiment of the present invention, as a result of applying the sunscreen composition to fruit trees 2 to 3 times, it was confirmed that the sunburn rate was the lowest when the 2.5-fold diluted mud powder solution was treated twice.

For the apples treated with the sunscreen composition, the sunburn occurrence rate was analyzed by measuring the number of sunburned fruits by grading according to a sunburn color chart. The mud powder diluted 2.5 times, which maintained the highest UV protection rate for 3 weeks, showed the greatest effect in reducing sunburn, and the sunburn rate was the lowest when treated twice with the mud powder diluted 2.5 times.

Therefore, it is characterized in that fruit trees are treated twice with the sunscreen composition of the present invention, and sunburn of fruits can be effectively reduced.

In addition, the present invention comprises the steps of preparing a chemical solution by adding 80 to 120% (w / v) mud mud powder based on 100 ml of natural palm tree extract; and adding 0.1L, 0.25L, 0.5L, and 0.8L of water to 100ml of the chemical solution.

In the above-described embodiment of the present invention, a sunscreen composition was prepared by adding 100% (w/v) mud powder or liquid to 100 ml of natural palm tree extract and diluting with water, compared to liquid chemicals at the same dilution factor. It was confirmed that the UV blocking effect of the composition prepared using the powder was excellent.

In addition, it was confirmed that the sunburn damage of fruits was significantly reduced compared to the untreated control group.

Therefore, it can be said that the sunscreen composition or spray solution prepared by the production method of the present invention has an excellent effect of preventing sun damage to fruits.

Hereinafter, the configuration and effects of the present invention will be described in more detail through examples. These examples are only for illustrating the present invention, and the scope of the present invention is not limited by these examples.

[Preparation Example 1] Preparation of sunscreen composition

A chemical solution for UV protection was prepared by mixing and stirring tidal flat mud (mud) powder or liquid with natural palm tree extract, which is a vegetable wax.

sample natural palm tree
extract tidal mud powder tidal mud liquid Example 1 100ml 100g - Comparative Example 1 100ml - 100g

The chemical solution prepared in Table 1 was diluted in water to prepare a spray solution for UV protection in a liquid form of 1 to 8 times the amount as shown in Table 2.

sample name ingredient water Example 1-1 1x powder 100 g of medicinal solution (mud powder) 0.1L Example 1-2 2.5 times the powder 100 g of medicinal solution (mud powder) 0.25L Example 1-3 powder agent 5 times 100 g of medicinal solution (mud powder) 0.5L Example 1-4 Powder 8 times 100 g of medicinal solution (mud powder) 0.8L Comparative Example 1-1 liquid 1x Chemical solution (mud solution) 100ml 0.1L Comparative Example 1-2 liquid 2.5 drainage Chemical solution (mud solution) 100ml 0.25L Comparative Example 1-3 liquid 5 times Chemical solution (mud solution) 100ml 0.5L Comparative Example 1-4 liquid 8 times Chemical solution (mud solution) 100ml 0.8L

[Example 1] UV blocking effect according to formulation and dilution ratio

The UV blocking composition of Preparation Example 1 was treated on glass as shown in FIG. 3 and the UV value was measured with a UV meter.

Table 3 and Table 4 are the results of measuring the sunscreen effect for each formulation concentration.

In Table 3, Examples 1-1 to 1-4 diluted 2.5 times or 5 times (powdered chemical solution) and Comparative Example 1-1 to Comparative Example 1-4 (liquid chemical solution) were applied to glass and then exposed to ultraviolet rays for 20 days. measured. As a result of the measurement, it was confirmed that the composition diluted 2.5 times had a higher UV blocking effect than the composition diluted 5 times. In addition, it was confirmed that the composition using the powdered chemical solution had a better UV protection effect at the same dilution factor compared to the liquid chemical solution.

Specifically, it was confirmed that the treatment of Example 1-2 (2.5 times the powder) was blocked by about 51% compared to the untreated treatment. In addition, as a result of measuring the UV value for 20 days, it was confirmed that the sunscreen using mud powder maintained the highest UV blocking effect by maintaining a blocking rate of 43% even after 20 days when treated with glass (Table 3 and FIG. 5).

sample July 11
(1st day of application) July 16
(Day 6 of application) July 25
(Day 15 after application) July 30
(Day 20 after application) untreated 11.37 (0%) 11.13 (0%) 9.85 (0%) 9.75 (0%) Example 1-2
(powder agent 2.5 times) 5.58 (51%) 4.53 (60%) 5.21 (48%) 5.56 (43%) Example 1-3 (powder agent 5 times liquid) 5.97 (48%) 5.71 (49%) 6.96 (29%) 6.96 (28%) Comparative Example 1-2 (liquid agent 2.5 times) 7.41 (35%) 7.25 (35%) 6.68 (33%) 7.13 (32%) Comparative Example 1-3
(5 times the amount) 9.00 (21%) 7.93 (29%) 7.09 (29%) 7.96 (19%) UV value measurement by concentration of materials in 2018
(Unit: μw/cm², blocking rate (%) based on 100 untreated UV rays)

In order to more specifically confirm the effect of the sunscreen according to the difference in the dilution ratio of the powder or liquid, the composition diluted 1 to 8 times was applied to glass and the UV blocking rate was measured (Table 4).

As a result of the measurement, similar to the results in Table 3, it was confirmed that the composition containing the powdered drug was more effective at the same dilution ratio compared to the liquid drug solution, and Examples 1-1 to Example using the powdered drug at 1 to 5 times the solution In Examples 1-3, it was confirmed that the UV blocking effect of 26% or more was maintained even after 15 days.

In addition, it was confirmed that the UV blocking rate was as high as 50% or more in Examples 1-1 and 1-2 on the first day of application.

Classification of treatment July 29
Day 1 of application August 5
Day 8 of application August 12
Day 15 of application untreated 10.53 (0%) 9.28 (0%) August 16 (0%) Example 1-1 (powder agent 1-fold liquid) 5.11 (51%) 5.48 (41%) 4.99 (38%) Example 1-2 (powder agent 2.5 times liquid) 5.27 (50%) 6.40 (31%) 5.89 (27%) Example 1-3 (powder agent 5 times liquid) 6.87 (34%) 7.07 (23%) 6.01 (26%) Example 1-4 (8-fold solution of powder) 7.86 (25%) 7.78 (16%) 6.28 (19%) Comparative Example 1-1 (1-fold solution) 5.86 (44%) 7.18 (23%) July 11 (12%) Comparative Example 1-2 (liquid agent 2.5 times) 7.01 (33%) 7.14 (23%) 7.29 (10%) Comparative Example 1-3 (liquid agent 5 times) 8.82 (16%) 8.52 (8%) 7.36 (9%) Comparative Example 1-4
(8 times the amount) 8.84 (16%) 8.81 (5%) 7.45 (8%) UV value measurement by concentration of materials in 2019
(Unit: μw/cm, blocking rate (%) based on 100 untreated UV rays)

[Experimental Example 2] Measurement of sunburn rate

For the apples treated with the sunscreen composition, as shown in FIG. 4, the sunburn occurrence rate was analyzed by measuring the number of sunburned fruits by grading according to the sunburn color chart (Table 5).

Example 1-2 (powder 2.5 times liquid), which maintained the highest sunscreen rate for 3 weeks, showed the greatest effect on sunburn reduction, and Example 1-2 (powder 2.5 times liquid) showed the lowest sunburn rate when treated twice. It was judged to be the most effective from an economic point of view.

Classification of treatment total sunburn rate untreated 23.4% Example 1-2 (powder agent 2.5 times liquid) twice treatment 5.4% Example 1-2 (powder agent 2.5 times) 3 times treatment 6.8% Example 1-3 (powder agent 5 times liquid) twice treatment 7.5% Example 1-3 (powder agent 5 times liquid) 3 times treatment 7.6% Comparative Example 1-3 (liquid agent 5 times) 2 times treatment 8.3% Comparative Example 1-3 (liquid solution 5 times) 3 times treatment 9.3%

[Experimental Example 3] Fruit characteristics of sunscreen treatment group

In order to analyze the effect of sunscreen treatment on the characteristics of fruits, Example 1-2 (powder agent 2.5 times), Example 1-3 (powder agent 5 times) or Comparative Example 1-3 (liquid agent 5 times) was applied to fruit trees 2 After treatment up to three times, fruit diameter (mm), fruit pulp (mm), fruit shape index (%), fruit weight (g), sugar content (°BX), acidity (%) and hardness (Kgf) were analyzed (Table 6).

process overgrowth
(mm) past
(mm) hypermorphic
jisoo
(%) overload
(g) per degree
(°BX) mountain road
(%) Hardness
(Kgf) untreated 88.9 77.1 86.8 296.8 12.0 0.36 3.58 Example 1-2 (1 time) 91.2 80.6 88.3 319.4 14.0 0.41 3.59 Example 1-2 (twice) 92. 79.8 86.5 325.0 14.8 0.41 3.76 Example 1-2 (3 times) 89.0 76.7 86.2 297.2 13.9 0.42 3.72 Examples 1-3 (3 times) 90.2 76.7 85.0 300.0 14.2 0.39 3.77 Examples 1-3 (3 times) 89.1 79.9 89.7 300.2 14.6 0.43 3.56 Examples 1-3 (3 times) 91.6 78.4 85.6 313.1 13.7 0.44 3.55 Comparative Example 1-3 (1 time) 93.2 80.7 86.6 330.3 14.5 0.51 3.69 Comparative Example 1-3 (twice) 92.6 79.4 85.7 323.2 15.1 0.44 3.39 Comparative Example 1-3 (3 times) 91.6 76.2 83.2 300.5 13. 0.41 3.51

As a result of the analysis, compared to the untreated control, the sugar content was measured to be higher in fruit trees treated with the sunscreen composition.

Claims (6)

A sunscreen composition for preventing sunburn of fruits containing natural palm tree extract and tidal flat mud powder,
A sunscreen composition for preventing sunburn of fruits, comprising 80 to 120% (w/v) of the tidal flat mud powder based on 100 ml of the natural palm tree extract. According to claim 1,
The composition is characterized in that diluted by further comprising water, sunscreen composition for preventing sunburn of fruit. [Claim 3] The sunscreen composition according to claim 2, wherein the water is contained in an amount of 0.1 to 0.8 L per 100 ml of the composition. Preparing a chemical solution by mixing 80 to 120% (w/v) mud flat mud powder based on 100 ml of natural palm tree extract; and
A method for producing a sunscreen composition for preventing sunburn of fruits, comprising diluting the chemical solution with water. According to claim 4,
In the step of diluting the chemical solution with water, 0.1 to 0.8 L of water is added to 100 ml of the chemical solution for dilution. A method for preventing sunburn of fruits, comprising the step of applying the sunscreen composition according to any one of claims 1 to 3 to fruits 2 to 3 times.

Images