Method for preparing pure essence of pomelo flower with fresh flower and low temperature extraction

Abstract

The application discloses a method for preparing natural flower nectar perfume of shaddock flower by low-temperature extraction of fresh flowers, and belongs to the technical field of natural flower nectar extraction. The application adds a vacuum pump to a traditional distillation device, reduces the air pressure in the distillation machine through vacuum pumping, and lowers the distillation boiling point to 50-85 DEG C, preferably 70 DEG C, to avoid high-temperature damage to the fragrance and eliminate the cooked flavor, so that the extraction nectar fragrance is close to the natural shaddock flower fragrance at a rate of 99%. The application can purchase shaddock flowers in batches at a price of 25 yuan per jin, thereby improving the income of farmers; the prepared nectar perfume is free of external addition and has the effects of regulating qi, relieving depression, soothing the nerves, resisting bacteria, deodorizing, beautifying, and helping sleep, and is suitable for use in vehicles, homes, offices, commercial places and the like, thereby filling the market gap of natural shaddock flower nectar perfume.

Description

Technical Field

[0001] This invention relates to the field of natural floral hydrosol extraction technology, specifically to a method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers. Background Technology

[0002] Currently, aromatherapy products on the market are mainly divided into two categories: one is pure essential oil aromatherapy, which suffers from high costs and is difficult to popularize widely; the other is aromatherapy blended with essential oils and alcohol, which is a lower-end product with poor fragrance quality and cannot meet the needs of high-end users. Traditional floral hydrosol extraction often uses high-temperature distillation technology, which severely damages the natural aroma components of fresh flowers during the extraction process, producing a noticeable cooked taste, resulting in a significant deviation between the aroma of the extracted product and the natural aroma of fresh flowers.

[0003] Meanwhile, the number of pomelo growers in China is enormous, but profitability from pomelo fruit is difficult, with most farmers operating at a loss and lacking stable income streams. Currently, there is no technology capable of efficiently and completely preserving the natural fragrance of pomelo blossoms for hydrosol extraction, making it impossible to realize the resource utilization of pomelo blossoms to improve farmers' income, nor can it fill the market gap for natural pomelo blossom hydrosol aromatherapy. Summary of the Invention

[0004] In view of this, the present invention provides a method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers, in order to solve or alleviate one of the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0005] The technical solution of this invention is implemented as follows: A method for preparing grapefruit flower hydrosol aromatherapy by low-temperature extraction of fresh flowers, comprising an apparatus, characterized in that: the apparatus is based on a traditional distillation machine as the main equipment, with a vacuum motor sealed and connected to the chamber of the distillation machine. The vacuum motor is used to continuously extract air from the inside of the distillation machine to reduce the internal air pressure. By reducing the air pressure, the boiling point of the distillation system is lowered, so that the distillation process is completed in a low-temperature range of 50℃ to 85℃. The low-temperature distillation conditions can avoid the destruction of the natural aroma components of grapefruit flowers by high temperature and eliminate the cooked taste of the extracted product, ensuring that the aroma of the extracted hydrosol is 99% close to the natural grapefruit flower aroma. The apparatus can be adapted to batch extraction of fresh grapefruit flowers, supporting the demand for bulk purchase of grapefruit flowers at 25 yuan per kilogram, and helping grapefruit growers increase their income.

[0006] Furthermore, the method includes the following steps: pre-treated fresh pomelo flowers are sealed and placed into the chamber of a distillation machine. A vacuum motor is started to extract air from the inside of the chamber to reduce the pressure. The chamber of the distillation machine is heated and the distillation temperature is controlled within the range of 50℃ to 85℃, so that the distillation system boils under low temperature and low pressure to complete the extraction of the effective components of pomelo flower fragrance. The liquid obtained by condensation is collected as pomelo flower fragrance hydrosol. The hydrosol can be directly prepared into aromatherapy products for use in cars, homes, offices, and commercial places. The method does not involve high temperature damage or the addition of additional ingredients, and completely preserves the natural fragrance and effective components.

[0007] Furthermore, the distillation temperature is preferably controlled at 70℃. Under the low-temperature distillation condition of 70℃, the aroma of the extracted pomelo blossom hydrosol is closest to that of the original pomelo blossom, with a stable aroma similarity rate of 99%. At the same time, it retains to the greatest extent the natural active ingredients in the hydrosol that have the effects of regulating qi and relieving depression, calming the mind and soothing the nerves, refreshing the air, antibacterial and deodorizing, refreshing the mind and stimulating the skin, beautifying the skin and aiding sleep.

[0008] Furthermore, the fresh pomelo blossoms mentioned are unspoiled, unpolluted, and pristine. The extraction process does not add any exogenous components such as essential oils, alcohol, preservatives, or solubilizers. The hydrosol is extracted solely through low-temperature, low-pressure distillation. The resulting hydrosol is a natural, additive-free pomelo blossom-scented hydrosol, which is distinct from the expensive pure essential oil aromatherapy and the low-grade, poor-smelling essential oil and alcohol blended aromatherapy on the market.

[0009] Furthermore, the vacuum motor is sealed to the still chamber, and the vacuum process maintains the airtightness of the chamber, which can stably reduce the internal pressure of the still to the pressure value corresponding to the boiling point of 50℃~85℃, ensuring that the distillation process is in a low-temperature state throughout, and eliminating the problems of aroma destruction and cooked taste caused by traditional high-temperature distillation.

[0010] Furthermore, the method enables large-scale industrial extraction of pomelo flowers, meeting the production needs of large-scale pomelo flower purchasing. By purchasing pomelo flowers at a price of 25 yuan per kilogram, pomelo farmers can earn more from selling flowers than from selling pomelo fruit, thus solving the industry problem of pomelo farmers in China facing difficulties in making profits and widespread losses.

[0011] Furthermore, the extracted natural grapefruit blossom hydrosol contains limonene, nerolidol, linalool, vitamin C, and flavonoids, which have the effects of regulating qi and relieving depression, relieving stress, calming irritability, and improving anxiety, chest tightness, and low mood.

[0012] Furthermore, the extracted natural grapefruit blossom hydrosol aromatherapy has the effects of calming the nerves and promoting sleep, mild sedation, relieving insomnia, improving sleep difficulty and frequent awakenings, and also has the effects of refreshing the air, removing odors, inhibiting bacteria and fungi in the air, thinning phlegm, soothing throat discomfort and bronchitis, and purifying the air and relieving breathing discomfort.

[0013] Furthermore, the extracted natural grapefruit blossom hydrosol has the body conditioning effects of regulating qi and stomach, relieving bloating and belching, improving indigestion, promoting qi circulation and relieving pain, and alleviating stomach and chest pain. At the same time, it has the beauty and skin care effects of anti-oxidation, brightening skin tone, improving dull skin, enhancing skin elasticity, and soothing sensitive, red, and dry skin.

[0014] Furthermore, the natural grapefruit flower hydrosol aromatherapy prepared by the method has no high-temperature cooked taste, no exogenous added ingredients, and a natural and pure aroma.

[0015] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: 1. Low-temperature and low-pressure distillation at 50℃~85℃ is adopted, with 70℃ being the preferred extraction temperature. This avoids the destruction of the natural aroma components of pomelo flowers by high temperatures and does not produce a cooked taste. The extracted hydrosol has a 99% similarity to the original fragrance of pomelo flowers, making it the first natural pomelo flower fragrance hydrosol in China.

[0016] Made solely from fresh pomelo blossoms, without any added essential oils, alcohol, preservatives, pigments, solubilizers, or other external ingredients, this product is distinct from expensive pure essential oil aromatherapy and low-grade, poor-smelling essential oil and alcohol blended aromatherapy. It boasts pure quality, high safety, and is suitable for a wide range of people.

[0017] Low-temperature conditions maximize the preservation of natural active substances such as limonene, nerolidol, linalool, vitamin C, and flavonoids, giving the product multiple benefits such as regulating qi and relieving depression, relieving stress, calming the mind and aiding sleep, refreshing the air, antibacterial and bacteriostatic properties, phlegm-reducing and throat-soothing, regulating qi and stomach, anti-oxidation and brightening, and soothing the skin, achieving an integrated "aromatherapy + conditioning + skincare" approach.

[0018] Simply adding a vacuum motor to traditional distillation equipment is a low-diversion-distillation-equipment-investment-required modification that is easy to operate, enabling large-scale continuous production with strong stability and good reproducibility, making it suitable for industrial promotion.

[0019] We can purchase pomelo flowers in bulk at a price of 25 yuan per kilogram, allowing farmers to earn more from selling flowers than from selling pomelos. This directly addresses the profitability and losses faced by thousands of pomelo growers across the country, and promotes the high-value utilization of agricultural products.

[0020] The product can be widely used for deodorizing and refreshing in vehicles, calming and aiding sleep at home, stimulating concentration in the office, and purifying commercial spaces, covering multiple scenarios, filling market gaps, and possessing huge market potential and economic benefits.

[0021] Low-temperature distillation reduces energy consumption and eliminates waste gas and liquid emissions, making the production process green and environmentally friendly. At the same time, under low-temperature conditions, aroma components are less likely to volatilize and be lost, resulting in higher extraction efficiency and significantly improved raw material utilization.

[0022] The above overview is for illustrative purposes only and is not intended to be limiting in any way. Further aspects, embodiments, and features of the invention will become apparent from the following detailed description, in addition to the illustrative aspects, embodiments, and features described above. Detailed Implementation

[0023] Example 1: Extraction of grapefruit floral hydrosol at the optimal temperature of 70℃ Fresh, unspoiled, and impurity-free pomelo blossoms are picked, and after simple cleaning and impurity removal, they are sealed and placed into the distillation chamber of a low-temperature distillation apparatus. Check the equipment's sealing performance, start the vacuum motor, and continuously extract air from the inside of the distillation machine to reduce the chamber pressure and lower the boiling point of the distillation system to the target range. The distillation apparatus is heated, and the distillation temperature is precisely controlled to be stable at 70℃, so that the system is kept boiling under low temperature and low pressure for distillation extraction; The liquid obtained from distillation and condensation is collected, filtered, and then natural grapefruit flower hydrosol is obtained. Sensory and component tests show that the aroma is 99% similar to the natural grapefruit flower aroma, with no cooked taste and no external additives. Hydrosols can be packaged into aromatherapy products and applied in cars, homes, offices, and commercial spaces. They can provide benefits such as regulating qi and relieving depression, calming the mind and aiding sleep, antibacterial and deodorizing, and beautifying and protecting the skin.

[0024] Example 2: Extraction of grapefruit floral hydrosol at low temperature (50℃) Fresh, high-quality pomelo blossoms are selected as raw materials. After removing branches, leaves, and impurities, they are put into a distillation machine and the equipment is sealed. Start the vacuum motor to extract air from the chamber, reduce the internal pressure, adjust the heating power, and control the distillation temperature at 50°C to carry out distillation extraction under low pressure and low temperature. Maintain stable boiling of the system, collect the condensate, and obtain grapefruit blossom hydrosol; The resulting hydrosol has a mild aroma, retaining the natural characteristics of grapefruit blossoms, and has no cooked taste. It can be used in home and baby-related aromatherapy settings where a gentle fragrance is required. It also has calming, soothing, refreshing, and sleep-aiding effects.

[0025] Example 3: Extraction of grapefruit floral hydrosol at medium-high temperature (85℃) Fresh pomelo blossoms are used as the sole raw material, and after pretreatment, they are added to a sealed distillation apparatus. Turn on the vacuum motor to reduce the pressure in the chamber, adjust the heating temperature to 85°C, and carry out distillation extraction within the low temperature and low pressure range. Collect the hydrosol obtained by condensation, filter it to obtain grapefruit flower scented hydrosol; This method allows for faster extraction, produces a rich hydrosol aroma, retains the natural characteristics of grapefruit blossoms, and has no noticeable cooked taste. It is suitable for commercial spaces, offices, and other settings that require rapid diffusion and fresh air purification, while also preserving the effects of refreshing the mind, antibacterial and antimicrobial properties, and regulating qi and stomach function.

[0026] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers, comprising an apparatus, characterized in that: The device is based on a traditional distillation machine. A vacuum motor is sealed to the chamber of the distillation machine. The vacuum motor is used to continuously extract air from the inside of the distillation machine to reduce the internal air pressure. By reducing the air pressure, the boiling point of the distillation system is lowered, and the distillation process is completed in a low temperature range of 50℃ to 85℃. The low temperature distillation conditions can avoid the destruction of the natural aroma components of pomelo flowers by high temperature and eliminate the cooked taste of the extracted product. It ensures that the aroma of the extracted hydrosol is 99% close to the natural aroma of pomelo flowers. The device can be adapted to the batch extraction of fresh pomelo flowers and can support the bulk purchase demand of pomelo flowers at 25 yuan per kilogram, helping pomelo growers increase their income.

2. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 1, characterized in that: Includes the following steps: Pre-treated fresh pomelo blossoms are sealed and placed into the chamber of a distillation apparatus. A vacuum motor is activated to remove air from the chamber and reduce the pressure. The chamber is heated, and the distillation temperature is controlled within the range of 50℃ to 85℃, causing the distillation system to boil under low temperature and low pressure. This completes the extraction of the effective components of the pomelo blossom fragrance. The condensed liquid is collected as pomelo blossom hydrosol. This hydrosol can be directly prepared into aromatherapy products for use in cars, homes, offices, and commercial spaces. The entire process involves no high-temperature damage and no addition of extra ingredients, fully preserving the natural aroma and active ingredients.

3. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 2, characterized in that: The distillation temperature is preferably controlled at 70℃. Under the low-temperature distillation condition of 70℃, the aroma of the extracted pomelo blossom hydrosol is closest to that of the original pomelo blossom, with a stable aroma similarity rate of 99%. At the same time, it retains to the greatest extent the natural active ingredients in the hydrosol that have the effects of regulating qi and relieving depression, calming the mind and soothing the nerves, refreshing the air, antibacterial and deodorizing, refreshing the mind and invigorating the spirit, beautifying the skin and promoting sleep.

4. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 2, characterized in that: The fresh pomelo flowers mentioned are unspoiled and free of impurities, and the extraction process does not add any exogenous ingredients such as essential oils, alcohol, preservatives, or solubilizers. The hydrosol is extracted only through low-temperature and low-pressure distillation. The resulting hydrosol is a natural, additive-free pomelo flower fragrance hydrosol, which is different from the expensive pure essential oil aromatherapy and the low-grade, poor-smelling essential oil and alcohol blended aromatherapy on the market.

5. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 1, characterized in that: The vacuum motor is sealed to the still chamber, and the vacuum process keeps the chamber airtight, which can stably reduce the internal pressure of the still to the pressure value corresponding to the boiling point of 50℃~85℃, ensuring that the distillation process is in a low-temperature state throughout, and eliminating the problems of aroma destruction and cooked taste caused by traditional high-temperature distillation.

6. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 2, characterized in that: The method enables large-scale industrial extraction of pomelo flowers, meeting the production needs of large-scale pomelo flower purchasing. It purchases pomelo flowers at a price of 25 yuan per kilogram, allowing pomelo farmers to earn more from selling flowers than from selling pomelo fruit, thus solving the industry problem of pomelo farmers in China facing difficulties in making profits and widespread losses.

7. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 2, characterized in that: The extracted natural grapefruit blossom hydrosol contains limonene, nerolidol, linalool, vitamin C, and flavonoids, which have the effects of regulating qi and relieving depression, relieving stress, calming irritability, and improving anxiety, chest tightness, and low mood.

8. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 2, characterized in that: The extracted natural grapefruit blossom hydrosol aromatherapy has the effects of calming the nerves and promoting sleep, mild sedation, relieving insomnia, improving sleep with difficulty falling asleep and frequent awakenings, and also has the effects of air purification, deodorization, inhibiting bacteria and fungi in the air, thinning phlegm, soothing throat discomfort and bronchitis, and purifying the air and relieving breathing discomfort.

9. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 2, characterized in that: The extracted natural grapefruit blossom hydrosol has the body conditioning effects of regulating qi and stomach, relieving bloating and belching, improving indigestion, promoting qi circulation and relieving pain, and alleviating stomach and chest pain. At the same time, it has the beauty and skin care effects of anti-oxidation, brightening skin tone, improving dull skin, enhancing skin elasticity, and soothing sensitive, red, and dry skin.

10. The method for preparing grapefruit floral hydrosol aromatherapy by low-temperature extraction of fresh flowers according to claim 2, characterized in that: The natural grapefruit floral hydrosol prepared by the method has no high-temperature cooked taste, no exogenous added ingredients, and a natural and pure fragrance.