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Preparation method of plant extract

A technology of plant extracts and extracts, which is applied in skin care preparations, pharmaceutical formulas, cosmetic preparations, etc., to achieve the effect of enhancing water-locking ability, reducing content, and remarkable effect

Active Publication Date: 2017-12-08
山东花物堂生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no literature report that daffodil extract has biological activity of whitening and moisturizing

Method used

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  • Preparation method of plant extract
  • Preparation method of plant extract

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Experimental program
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Effect test

Embodiment 1

[0016] The preparation of embodiment 1 daffodil chloroform extraction part

[0017] Take 1.16kg of dried petals of daffodils, soak them in 12L volume fraction of 95% ethanol solution for 24 hours, heat and reflux for extraction 3 times, each extraction time is 2 hours, combine the extracts, filter, and the filtrate is concentrated into a distillate after recovering ethanol. paste, add 800mL water to dissolve, carry out equal volume extraction with chloroform for several times until the extract is colorless, the obtained chloroform extract is dried after recovering the solvent, crushed through a 100-mesh sieve, and the dry powder of the chloroform extraction part of daffodil is obtained.

Embodiment 2

[0018] The preparation of embodiment 2 daffodil extract skin cream

[0019] (1) Weigh 70g of caprylic capric glyceride, 50g of stearic acid, 50g of dimethylsiloxane, 40g of isopropyl palmitate, 10g of monoglyceride and 1g of methyl paraben, mix and heat to 80°C , melted and stirred evenly, as the oil phase;

[0020] (2) Measure 600ml of deionized water, add 80ml of 1,2-propanediol and 10ml of triethanolamine,

[0021] Stir to mix evenly, add 3.5 g of the dry powder of the chloroform extraction part of daffodils prepared in Example 1 into the mixed solution, heat to 85 ° C, stir and dissolve evenly, and use it as the water phase;

[0022] (3) Add the oil phase and water phase to the emulsification pot, stir evenly, emulsify and homogenize for 6 minutes, when stirring and cooling to 50°C, add 1g of essence, stir evenly, cool to 38°C, that is the daffodil extract skin cream . The daffodil extract in the water phase was replaced by deionized water, and a blank control skin crea...

Embodiment 3

[0023] Example 3 Skin whitening performance test experiment of daffodil extract skin cream

[0024] Select 10 volunteers with healthy skin on the left and right forearm medial 3cm×3cm area as the test site, apply the sample to be tested prepared in Example 2 on one side, and smear the blank control sample on the other side. Use once a day in the morning and once in the evening for a total of 4 weeks. Avoid washing off with water after application. The melanin content in the skin was checked with a skin melanin tester produced by Germany CK Electronics before use and every other week. Calculate the change rate of skin melanin according to the following formula: melanin change rate=skin melanin content measured after applying the sample / skin melanin content measured before applying the sample×100%.

[0025] The color of the skin mainly depends on the content of melanin in the human skin. The detection of the content of skin pigment can reflect the degree of skin aging and the w...

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Abstract

The invention discloses a preparation method of a plant extract. The plant extract is a chloroform extract part of daffodil petals. The skin-whitening cosmetic provided by the invention has an obvious effect, is capable of enhancing the moisture retention of skin and reducing the melanin content of skin and has whitening and moistening effects. Meanwhile, the product is non-irritant to skin and is safe and reliable.

Description

[0001] This application is a divisional application with an application date of January 22, 2015, an application number of 2015100324683, and the title of the invention is a whitening and moisturizing skin care product. technical field [0002] The invention belongs to the technical field of daily cosmetics, and in particular relates to a skin care product, in particular to a whitening, moisturizing and skin care product with plant extracts as main functional components. Background technique [0003] The skin is the largest organ of the human body, with a total weight of 5% to 15% of the body weight, a total area of ​​1.5 to 2 square meters, and a thickness of 0.5 to 4 mm, which varies from person to person or from different parts. The skin covers the whole body, is closely connected with other organs of the human body, and plays a role in protecting the human body from external stimuli or injuries. The skin has two barrier functions: on the one hand, it prevents the loss of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/9794A61Q19/00A61Q19/02
CPCA61K8/97A61Q19/00A61Q19/02
Inventor 刘艳芳
Owner 山东花物堂生物科技有限公司
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