Method for preparing hydrolyzed shell nacre powder

A nacre and shell technology, which is applied in skin care preparations, medical preparations containing active ingredients, and pharmaceutical formulas, can solve the problems of large nacre powder particles, low active ingredients, and unfavorable skin absorption. The effect of skin absorption, small damage, and avoidance of damage

Inactive Publication Date: 2018-02-09
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a preparation method of hydrolyzed shell nacre powder, which overcomes the defects that the nacre powder obtained by the traditional nacre powder preparation method has large particles, low active ingredients, and is not conducive to skin absorption.

Method used

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  • Method for preparing hydrolyzed shell nacre powder

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Effect test

Embodiment 1

[0017] A kind of preparation method of hydrolyzed conch nacre powder in the present embodiment, comprises the following steps:

[0018] 1) Pretreatment: Soak the shells in hydrochloric acid with a mass fraction of 0.1% for 24 hours, wash them with distilled water three times after soaking, remove impurities on the shells, and dry them at 68°C for 12 hours to obtain washed and dried shell spare;

[0019] 2) Preparation of hydrolyzate: Soak the washed and dried shells with 45% acetic acid for 24 hours, and keep the reaction temperature at 80°C until there is no CO 2 Gas is generated, and the solution obtained from the reaction is ultrasonically incubated at 100°C for 24 hours. After the reaction is stopped, the hydrolyzed solution is obtained after filtering to remove impurities;

[0020] 3) Preparation of nacre powder: spray-dry the hydrolyzed solution at 210MPa to obtain a powder which is passed through a high-pressure homogenizer and passed through a 1000-mesh sieve to obtai...

Embodiment 2

[0022] A kind of preparation method of hydrolyzed conch nacre powder in the present embodiment, comprises the following steps:

[0023] 1) Pretreatment: soak the shells with hydrochloric acid with a mass fraction of 0.2% for 24 hours, wash them with distilled water three times after soaking, remove impurities on the shells, and dry them at a temperature of 70°C for 12 hours to obtain washed and dried shells. shell spare;

[0024] 2) Preparation of hydrolyzate: soak the washed and dried shells with 60% acetic acid for 20 hours, and continue the reaction at 80°C until no CO 2 Gas is generated, and the solution obtained from the reaction is ultrasonically incubated at 120°C for 24 hours. After the reaction is stopped, the hydrolyzed solution is obtained after filtering and removing impurities;

[0025] 3) Preparation of nacre powder: spray-dry the hydrolyzed solution at 210MPa to obtain a powder which is passed through a high-pressure homogenizer and passed through a 1000-mesh s...

Embodiment 3

[0027] A kind of preparation method of hydrolyzed conch nacre powder in the present embodiment, comprises the following steps:

[0028] 1) Pretreatment: soak the shells with hydrochloric acid with a mass fraction of 0.3% for 24 hours, wash them with distilled water three times after soaking, remove impurities on the shells, and dry them at a temperature of 80°C for 12 hours to obtain washed and dried shells. shell spare;

[0029] 2) Preparation of hydrolyzate: soak the washed and dried shells with 60% acetic acid for 20 hours, and continue the reaction at 80°C until no CO 2 Gas is generated, and the solution obtained from the reaction is ultrasonically incubated at 100°C for 24 hours. After the reaction is stopped, the hydrolyzed solution is obtained after filtering to remove impurities;

[0030] 3) Preparation of nacre powder: spray-dry the hydrolyzed solution at 210MPa to obtain a powder which is passed through a high-pressure homogenizer and passed through a 1000-mesh siev...

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Abstract

The invention relates to a preparation method of hydrolyzed shell nacre powder, comprising three steps of pretreatment, preparation of hydrolyzate and preparation of nacre powder, using pearl shell as raw material, washing and drying the shell through the pretreatment step, and then The hydrolyzate is prepared through the preparation step of the hydrolyzate by using the washed and dried shells, and finally the nacre powder is obtained by passing the hydrolyzate through the preparation step of the nacre powder. The nacre powder preparation method of the present invention uses organic acid acetic acid when preparing the hydrolyzate, which has little damage to the active ingredients in the nacre, and the nacre powder obtained after hydrolysis and drying is smaller than the nacre powder obtained by direct physical pulverization. The active ingredient of the nacre powder obtained by the nacre powder preparation method of the present invention has little damage, is easy to be absorbed by the skin, and has an excellent cosmetic effect.

Description

technical field [0001] The invention belongs to the field of nacre powder preparation, and in particular relates to a preparation method of hydrolyzed shell nacre powder. Background technique [0002] As a cosmetic with excellent cosmetic effect, nacre powder has an indispensable whitening and moisturizing effect on skin and skin derivatives. At present, nacre powder is often prepared from discarded shells, but in the traditional preparation process, direct physical pulverization is often used, resulting in poor pulverization effect, and high impurity content, resulting in large nacre powder particles, which are not easily absorbed by the skin, and In the preparation, inorganic acid is used as the acid for hydrolysis, which will easily destroy the natural trace organic elements and organic active ingredients in the nacre powder. The nacre powder prepared in this way has large particles and low active ingredients, which is not conducive to skin absorption and reduces the pear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/98A61Q19/02A61Q19/00
CPCA61K8/987A61K2800/10A61K2800/412A61K2800/805A61Q19/00A61Q19/02
Inventor 郭健宋文东纪丽丽王亚宁蔡璐应知伟姜东娇
Owner ZHEJIANG OCEAN UNIV
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