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A kind of pure natural woody plant extract and its preparation method and application

A technology for natural woody plants and extracts, applied in the field of pure natural woody plant extraction, can solve the problems of precipitation, short shelf life, body reaction, etc., and achieve the effects of inhibiting degranulation, small drug effect and stable performance.

Active Publication Date: 2022-06-24
ZHEJIANG FORESTRY UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the sensitizers derived from pure natural plants are compound, and most of the raw materials are herbal medicinal materials, and the dosage is large. Conventional extraction methods such as decoction are used, and the color of the extract is dark when used. Due to the complexity of the ingredients, the shelf life is short. The active ingredients will decrease, precipitate or even deteriorate after being left for a long time, making it difficult to apply in cosmetics
Moreover, many raw materials are medicinal materials, which more or less have certain medicinal effects, may cause the body to react, and have certain hidden dangers to human safety.

Method used

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  • A kind of pure natural woody plant extract and its preparation method and application
  • A kind of pure natural woody plant extract and its preparation method and application
  • A kind of pure natural woody plant extract and its preparation method and application

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preparation example Construction

[0027] A first aspect of the present invention provides a method for preparing a pure natural woody plant extract, comprising the steps of:

[0028] (1) adding green tea into pure water, and then steaming;

[0029] (2) After the steam is evaporated, the distillate is retained through the condenser.

[0030] Preferably, the preparation method of the pure natural woody plant extract further comprises freeze-drying the distillate to obtain a powdery concentrated product; further preferably, the temperature of freeze-drying is -45 to 55°C, and the pressure is less than 10Pa; More preferably, the temperature of freeze drying is -50°C and the pressure is less than 10Pa.

[0031] The green tea of ​​the present invention can be selected from any one of stir-fried green tea, baked green tea, sun-dried green tea, and steamed green tea according to the different drying methods.

[0032] Stir-fried green tea is a kind of green tea that is fried in a pot. Long-fried green tea is shaped ...

Embodiment 1

[0049] Embodiment 1 of the present invention provides a kind of pure natural woody plant extract, and its preparation method is as follows:

[0050] (1) Pretreating the roasted green tea, that is, soaking it in pure water for 2 hours; then add 125g of roasted green tea to 1500 mL of pure water, and then cook it in a temperature-controlled steamer. The temperature is controlled within 110 °C, and the roasted green tea is The tea is wrapped with medical gauze during the cooking process; the roasted green tea is Fujian roasted tea;

[0051] (2) after the steam is steamed out, the distillate is retained by 4 circles of condensing pipes with a length of 3.76m, and the temperature of the controlled condensing pipe and the distillate is 20~30 ℃;

[0052] (3) The output rate of the distillate is 1L / h, and the distillate is freeze-dried to obtain a powdery concentrated product; the temperature of freeze-drying is -50°C, and the pressure is less than 10Pa.

Embodiment 2

[0054] Embodiment 2 of the present invention provides a kind of pure natural woody plant extract, and its preparation method is as follows:

[0055] (1) Pretreating the roasted green tea, that is, soaking it in pure water for 2.5 hours; then add 125 g roasted green tea to 1600 mL of pure water, and then cook it in a temperature-controlled steamer. The green tea is wrapped with medical gauze during the cooking process; the roasted green tea is Fujian roasted tea;

[0056] (2) after the steam is steamed out, the distillate is retained by 4 circles of condensing pipes with a length of 3.76m, and the temperature of the controlled condensing pipe and the distillate is 20~30 ℃;

[0057] (3) The output rate of the distillate is 1L / h, and the distillate is freeze-dried to obtain a powdery concentrated product; the temperature of freeze-drying is -50°C, and the pressure is less than 10Pa.

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Abstract

The present invention relates to the technical field related to the extraction of pure natural woody plants, more specifically, the present invention provides a pure natural woody plant extract and its application. The first aspect of the present invention provides a kind of preparation method of pure natural woody plant extract, comprises the following steps: (1) green tea is added into pure water, then boils; Keep the distillate. The invention provides an extraction method of a pure natural single woody plant that can be used as a soothing agent. The obtained plant extract is light in color, not turbid, stable in storage, and has a delicate fragrance; it is non-toxic and non-irritating to the skin; and it can inhibit hypertrophy Cell degranulation phenomenon, with soothing effect.

Description

technical field [0001] The present invention relates to the technical field related to the extraction of pure natural woody plants, and more specifically, the present invention provides a pure natural woody plant extract and its application. Background technique [0002] Skin allergy is a common skin disease. If symptomatic treatment is not received in time, as the disease aggravates, it is very easy to induce various complications and affect daily life. For example, urticaria is a localized edema reaction caused by dilation and increased permeability of small blood vessels in the skin and mucous membranes. The rash usually subsides within 2-24 hours; moon. There are many reasons for skin allergies, such as seasonal changes, environmental pollution, ingestion of allergic substances and so on. In recent years, with the continuous emergence of various cosmetics, the protective effect of the skin's barrier has been gradually weakened, and the phenomenon of skin allergies has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/9789A61Q19/00A61K36/82A61P37/08A61K127/00
CPCA61K8/9789A61Q19/005A61K36/82A61P37/08A61K2800/84
Inventor 李建武阮丽王丽鸳陈丽芬林琳李欣
Owner ZHEJIANG FORESTRY UNIVERSITY
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