Longan seed polyphenol extraction and purification method and application of longan seed polyphenol in preparing polyphenol whitening cosmetics

A technology of whitening cosmetics and purification methods, which is applied in the field of extraction and purification of polyphenols from longan fruit stones, and the preparation of polyphenol whitening cosmetics. It can solve the problems of insufficient storage and preservation technology and backward storage and transportation conditions, and achieve convenient compounding products Easy to recycle, strong UV absorption effect

Active Publication Date: 2015-04-01
广东创美抗衰老研究有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively concentrated listing, backward storage and transportation conditions and insufficient storage and preservation technology, only some longans are directly consumed as

Method used

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  • Longan seed polyphenol extraction and purification method and application of longan seed polyphenol in preparing polyphenol whitening cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1), extraction: collect the discarded fruit stones of longan processing in the longan fruit field, dry naturally, and pulverize through a 20-mesh sieve to obtain longan fruit stone powder. Take 100g of longan fruit core powder in a 2000mL three-neck flask, add 1500mL of anhydrous acetone, install a stirring device with a seal, plug the other two ports tightly, stir at room temperature for 1 hour, let stand for 1 hour, and pour out the upper layer as much as possible (basically clear, another For treatment), discard the upper layer; add 1500mL 60% acetone for the second time, stir at room temperature for 6h, then stand still for 1h, pour out the upper layer as much as possible and filter; add 1500mL 60% acetone for the third time, stir at room temperature for 4h, stand still 1h, filter; combine the second and third filtrates, recover acetone by atmospheric pressure rotary evaporation to obtain polyphenols, dilute the obtained polyphenols with water until the concentratio...

Embodiment 2

[0031] (1), extraction: collect the discarded fruit stones of longan processing in the longan fruit field, dry naturally, and pulverize through a 20-mesh sieve to obtain longan fruit stone powder. Take 100g of longan fruit core powder in a 2000mL three-necked flask, add 1200mL of anhydrous acetone, install a stirring device with a seal, plug the other two ports tightly, stir at room temperature for 2 hours, let stand for 1 hour, pour out the upper layer as much as possible (basically clear, another For treatment), discard the upper layer; add 1500mL 55% acetone for the second time, stir at room temperature for 5h, then stand still for 1h, pour out the upper layer as much as possible and filter; add 1000mL 55% acetone for the third time, stir at room temperature for 4h, stand still 1h, filter; combine the second and third filtrates, recover acetone by atmospheric pressure rotary evaporation to obtain polyphenols, and dilute the obtained polyphenols with water to a polyphenol con...

Embodiment 3

[0036] (1), extraction: collect the discarded fruit stones of longan processing in the longan fruit field, dry naturally, and pulverize through a 20-mesh sieve to obtain longan fruit stone powder. Take 100g of longan fruit core powder in a 2000mL three-neck flask, add 1000mL of anhydrous acetone, install a stirring device with a seal, plug the other two ports tightly, stir at room temperature for 1h, let stand for 1h, pour out the upper layer as much as possible (basically clear, another For treatment), discard the upper layer; add 1000mL 50% acetone for the second time, stir at room temperature for 4h, then stand still for 1h, pour out the upper layer as much as possible and filter; add 1000mL 50% acetone for the third time, stir at room temperature for 6h, stand still 1h, filter; combine the second and third filtrates, recover acetone by rotary evaporation under normal pressure to obtain polyphenols, dilute the obtained polyphenols with water to a polyphenol concentration of ...

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Abstract

The invention discloses a longan seed polyphenol extraction and purification method and application of the longan seed polyphenol in preparing polyphenol whitening cosmetics. The method comprises the following steps: respectively treating longan seed powder with anhydrous acetone and a 50-70% acetone water solution three times, merging the second and third filtrates, and recovering the acetone to obtain the polyphenol; and purifying the extracted polyphenol with a macroporous adsorbent resin, and carrying out vacuum concentration to a dry state to obtain the purified polyphenol. The method has the advantages of high extraction rate and recoverable organic solvent; water in the extracting solution does not need to be evaporated by heating; the room-temperature or low-temperature treatment is beneficial to protecting the product and saving the energy; the purified product has higher solubility; and the method is convenient for compounding the product, provides a brand-new application for longan seeds, develops four cosmetics with wide market prospects (polyphenol whitening nutritive facial cleanser, polyphenol whitening nutritive toner, polyphenol whitening nutritive lotion and polyphenol whitening nutritive cream), and also provides a wide-prospect way for integrated application and development of longan seeds.

Description

Technical field: [0001] The invention belongs to the field of biomedicine, and in particular relates to a method for extracting and purifying longan fruit stone polyphenols and its application in preparing polyphenol whitening cosmetics. Background technique: [0002] Longan (Dimocarpus longan Lour.) is an evergreen fruit tree belonging to Sapindaceae (Sapindaceae). It is grown as a cash crop in many countries such as China, Thailand, India and Vietnam. my country is distributed in Fujian, Taiwan, Guangxi, Guangdong, Hainan, Sichuan, Guizhou, Yunnan and other provinces and regions, and there are large-scale plantings in Fujian, Guangdong, and Guangxi. The common name of longan is longan, also known as longan, bimu, lychee slave, puzzle, sub-lychee, round eye, Sichuan marble, Lizhu, swallow egg, honey spleen, shark tear, wood bomb, embroidered wood group, etc. Famous fruit, its pulp is milky white or pale white, with crispy and sweet flesh. As a nourishing health food, lon...

Claims

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Application Information

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IPC IPC(8): A61K8/97A61Q19/02A61Q19/10
Inventor 郑公铭刘纲勇付晓春王如意张显策傅中邹颖楠王永丽李忠军黄海潮
Owner 广东创美抗衰老研究有限公司
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